Merge IntentInstaller's role into IntentCompiler

It resolves naming mismatch in naming of IntentProcessPhases and states
handled in the phases. It is described in ONOS-1064.

- Define FlowRuleIntent that enables flow rule level operation
  as an intent.
- Remove IntentInstaller interface
- Existing installable intents such as PathIntent, LinkCollectionIntent,
  OpticalPathIntent and MplsPathIntent now become non installable intents.
  Only FlowRuleIntent is categorized as installable intent now.
- Implement intent compilers for PathIntent, LinkCollectionIntent,
  OpticalPathIntent and MplsPathIntent. They generates FlowRuleIntents.
- Write unit tests for the newly created intent compilers according to
  the intent installers' unit tests
- Remove all intent installers and their unit tests

Change-Id: I22d6c7acb65a4c066145de0018bd0727f44bd54a
diff --git a/core/net/src/test/java/org/onosproject/net/intent/impl/IntentManagerTest.java b/core/net/src/test/java/org/onosproject/net/intent/impl/IntentManagerTest.java
index 64c963b..87ca8c7 100644
--- a/core/net/src/test/java/org/onosproject/net/intent/impl/IntentManagerTest.java
+++ b/core/net/src/test/java/org/onosproject/net/intent/impl/IntentManagerTest.java
@@ -15,6 +15,7 @@
  */
 package org.onosproject.net.intent.impl;
 
+import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
@@ -34,15 +35,13 @@
 import org.onosproject.core.impl.TestCoreManager;
 import org.onosproject.event.impl.TestEventDispatcher;
 import org.onosproject.net.NetworkResource;
-import org.onosproject.net.flow.FlowRule;
-import org.onosproject.net.flow.FlowRuleOperation;
+import org.onosproject.net.intent.FlowRuleIntent;
 import org.onosproject.net.intent.Intent;
 import org.onosproject.net.intent.IntentCompiler;
 import org.onosproject.net.intent.IntentEvent;
 import org.onosproject.net.intent.IntentEvent.Type;
 import org.onosproject.net.intent.IntentExtensionService;
 import org.onosproject.net.intent.IntentId;
-import org.onosproject.net.intent.IntentInstaller;
 import org.onosproject.net.intent.IntentListener;
 import org.onosproject.net.intent.IntentService;
 import org.onosproject.net.intent.IntentState;
@@ -51,7 +50,6 @@
 import org.onosproject.store.trivial.impl.SimpleIntentStore;
 
 import com.google.common.collect.HashMultimap;
-import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Lists;
 import com.google.common.collect.Maps;
 import com.google.common.collect.Multimap;
@@ -95,7 +93,6 @@
     protected IntentExtensionService extensionService;
     protected TestListener listener = new TestListener();
     protected TestIntentCompiler compiler = new TestIntentCompiler();
-    protected TestIntentInstaller installer = new TestIntentInstaller();
 
     private static class TestListener implements IntentListener {
         final Multimap<IntentEvent.Type, IntentEvent> events = HashMultimap.create();
@@ -152,14 +149,10 @@
         }
     }
 
-    private static class MockInstallableIntent extends MockIntent {
-        public MockInstallableIntent(Long number) {
-            super(number);
-        }
+    private static class MockInstallableIntent extends FlowRuleIntent {
 
-        @Override
-        public boolean isInstallable() {
-            return true;
+        public MockInstallableIntent() {
+            super(APPID, Arrays.asList(new MockFlowRule(100)));
         }
     }
 
@@ -167,7 +160,7 @@
         @Override
         public List<Intent> compile(MockIntent intent, List<Intent> installable,
                                     Set<LinkResourceAllocations> resources) {
-            return Lists.newArrayList(new MockInstallableIntent(intent.number()));
+            return Lists.newArrayList(new MockInstallableIntent());
         }
     }
 
@@ -179,53 +172,6 @@
         }
     }
 
-    private static class TestIntentInstaller implements IntentInstaller<MockInstallableIntent> {
-        @Override
-        public List<Collection<org.onosproject.net.flow.FlowRuleOperation>> install(MockInstallableIntent intent) {
-            FlowRule fr = new MockFlowRule(intent.number().intValue());
-            Set<FlowRuleOperation> rules = ImmutableSet.of(
-                    new FlowRuleOperation(fr, FlowRuleOperation.Type.ADD));
-            return Lists.newArrayList(ImmutableSet.of(rules));
-        }
-
-        @Override
-        public List<Collection<FlowRuleOperation>> uninstall(MockInstallableIntent intent) {
-            FlowRule fr = new MockFlowRule(intent.number().intValue());
-            Set<FlowRuleOperation> rules = ImmutableSet.of(
-                    new FlowRuleOperation(fr, FlowRuleOperation.Type.REMOVE));
-            return Lists.newArrayList(ImmutableSet.of(rules));
-        }
-
-        @Override
-        public List<Collection<FlowRuleOperation>> replace(MockInstallableIntent oldIntent,
-                                                           MockInstallableIntent newIntent) {
-            FlowRule fr = new MockFlowRule(oldIntent.number().intValue());
-            FlowRule fr2 = new MockFlowRule(newIntent.number().intValue());
-            Set<FlowRuleOperation> rules = ImmutableSet.of(
-                    new FlowRuleOperation(fr, FlowRuleOperation.Type.REMOVE),
-                    new FlowRuleOperation(fr2, FlowRuleOperation.Type.ADD));
-            return Lists.newArrayList(ImmutableSet.of(rules));
-        }
-    }
-
-    private static class TestIntentErrorInstaller implements IntentInstaller<MockInstallableIntent> {
-        @Override
-        public List<Collection<FlowRuleOperation>> install(MockInstallableIntent intent) {
-            throw new IntentInstallationException("install() always fails");
-        }
-
-        @Override
-        public List<Collection<FlowRuleOperation>> uninstall(MockInstallableIntent intent) {
-            throw new IntentRemovalException("uninstall() always fails");
-        }
-
-        @Override
-        public List<Collection<FlowRuleOperation>> replace(MockInstallableIntent oldIntent,
-                                                           MockInstallableIntent newIntent) {
-            throw new IntentInstallationException("replace() always fails");
-        }
-    }
-
     /**
      * Hamcrest matcher to check that a conllection of Intents contains an
      * Intent with the specified Intent Id.
@@ -274,7 +220,6 @@
         manager.activate();
         service.addListener(listener);
         extensionService.registerCompiler(MockIntent.class, compiler);
-        extensionService.registerInstaller(MockInstallableIntent.class, installer);
 
         assertTrue("store should be empty",
                    Sets.newHashSet(service.getIntents()).isEmpty());
@@ -307,7 +252,6 @@
     @After
     public void tearDown() {
         extensionService.unregisterCompiler(MockIntent.class);
-        extensionService.unregisterInstaller(MockInstallableIntent.class);
         service.removeListener(listener);
         manager.deactivate();
         // TODO null the other refs?
@@ -428,22 +372,6 @@
     }
 
     /**
-     * Tests handling of an error that is generated by the intent installer.
-     */
-    @Test
-    public void errorIntentInstallFromInstaller() {
-        final TestIntentErrorInstaller errorInstaller = new TestIntentErrorInstaller();
-        extensionService.registerInstaller(MockInstallableIntent.class, errorInstaller);
-        MockIntent intent = new MockIntent(MockIntent.nextId());
-        listener.setLatch(1, Type.INSTALL_REQ);
-        listener.setLatch(1, Type.FAILED);
-        service.submit(intent);
-        listener.await(Type.INSTALL_REQ);
-        listener.await(Type.FAILED);
-        verifyState();
-    }
-
-    /**
      * Tests handling a future that contains an unresolvable error as a result of
      * installing an intent.
      */
@@ -521,9 +449,6 @@
      */
     @Test
     public void intentWithoutInstaller() {
-
-        extensionService.unregisterInstaller(MockInstallableIntent.class);
-
         MockIntent intent = new MockIntent(MockIntent.nextId());
         listener.setLatch(1, Type.INSTALL_REQ);
         listener.setLatch(1, Type.FAILED);
diff --git a/core/net/src/test/java/org/onosproject/net/intent/impl/compiler/LinkCollectionIntentCompilerTest.java b/core/net/src/test/java/org/onosproject/net/intent/impl/compiler/LinkCollectionIntentCompilerTest.java
new file mode 100644
index 0000000..f314fe9
--- /dev/null
+++ b/core/net/src/test/java/org/onosproject/net/intent/impl/compiler/LinkCollectionIntentCompilerTest.java
@@ -0,0 +1,160 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.net.intent.impl.compiler;
+
+import com.google.common.collect.ImmutableSet;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onosproject.TestApplicationId;
+import org.onosproject.core.ApplicationId;
+import org.onosproject.core.CoreService;
+import org.onosproject.core.IdGenerator;
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.DefaultLink;
+import org.onosproject.net.Link;
+import org.onosproject.net.flow.DefaultTrafficSelector;
+import org.onosproject.net.flow.DefaultTrafficTreatment;
+import org.onosproject.net.flow.FlowRule;
+import org.onosproject.net.flow.TrafficSelector;
+import org.onosproject.net.flow.TrafficTreatment;
+import org.onosproject.net.intent.FlowRuleIntent;
+import org.onosproject.net.intent.Intent;
+import org.onosproject.net.intent.IntentExtensionService;
+import org.onosproject.net.intent.LinkCollectionIntent;
+import org.onosproject.net.intent.MockIdGenerator;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+import java.util.Set;
+
+import static org.easymock.EasyMock.createMock;
+import static org.easymock.EasyMock.expect;
+import static org.easymock.EasyMock.replay;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.hasSize;
+import static org.hamcrest.Matchers.is;
+import static org.onosproject.net.Link.Type.DIRECT;
+import static org.onosproject.net.NetTestTools.APP_ID;
+import static org.onosproject.net.NetTestTools.PID;
+import static org.onosproject.net.NetTestTools.connectPoint;
+
+public class LinkCollectionIntentCompilerTest {
+
+    private final ApplicationId appId = new TestApplicationId("test");
+
+    private final ConnectPoint d1p1 = connectPoint("s1", 0);
+    private final ConnectPoint d2p0 = connectPoint("s2", 0);
+    private final ConnectPoint d2p1 = connectPoint("s2", 1);
+    private final ConnectPoint d3p1 = connectPoint("s3", 1);
+    private final ConnectPoint d3p0 = connectPoint("s3", 10);
+    private final ConnectPoint d1p0 = connectPoint("s1", 10);
+
+    private final Set<Link> links = ImmutableSet.of(
+            new DefaultLink(PID, d1p1, d2p0, DIRECT),
+            new DefaultLink(PID, d2p1, d3p1, DIRECT),
+            new DefaultLink(PID, d1p1, d3p1, DIRECT));
+
+    private final TrafficSelector selector = DefaultTrafficSelector.builder().build();
+    private final TrafficTreatment treatment = DefaultTrafficTreatment.builder().build();
+
+    private CoreService coreService;
+    private IntentExtensionService intentExtensionService;
+    private IdGenerator idGenerator = new MockIdGenerator();
+
+    private LinkCollectionIntent intent;
+
+    private LinkCollectionIntentCompiler sut;
+
+    @Before
+    public void setUP() {
+        sut = new LinkCollectionIntentCompiler();
+        coreService = createMock(CoreService.class);
+        expect(coreService.registerApplication("org.onosproject.net.intent"))
+                .andReturn(appId);
+        sut.coreService = coreService;
+
+        Intent.bindIdGenerator(idGenerator);
+
+        intent = LinkCollectionIntent.builder()
+                .appId(APP_ID)
+                .selector(selector)
+                .treatment(treatment)
+                .links(links)
+                .ingressPoints(ImmutableSet.of(d1p1))
+                .egressPoints(ImmutableSet.of(d3p1))
+                .build();
+        intentExtensionService = createMock(IntentExtensionService.class);
+        intentExtensionService.registerCompiler(LinkCollectionIntent.class, sut);
+        intentExtensionService.unregisterCompiler(LinkCollectionIntent.class);
+        sut.intentManager = intentExtensionService;
+
+        replay(coreService, intentExtensionService);
+    }
+
+    @After
+    public void tearDown() {
+        Intent.unbindIdGenerator(idGenerator);
+    }
+
+    @Test
+    public void testCompile() {
+        sut.activate();
+
+        List<Intent> compiled = sut.compile(intent, Collections.emptyList(), Collections.emptySet());
+        assertThat(compiled, hasSize(1));
+
+        Collection<FlowRule> rules = ((FlowRuleIntent) compiled.get(0)).flowRules();
+        assertThat(rules, hasSize(links.size()));
+
+        // if not found, get() raises an exception
+        FlowRule rule1 = rules.stream()
+                .filter(rule -> rule.deviceId().equals(d1p0.deviceId()))
+                .findFirst()
+                .get();
+        assertThat(rule1.selector(), is(
+                DefaultTrafficSelector.builder(intent.selector()).matchInPort(d1p1.port()).build()
+        ));
+        assertThat(rule1.treatment(), is(
+                DefaultTrafficTreatment.builder(intent.treatment()).setOutput(d1p1.port()).build()
+        ));
+
+        FlowRule rule2 = rules.stream()
+                .filter(rule -> rule.deviceId().equals(d2p0.deviceId()))
+                .findFirst()
+                .get();
+        assertThat(rule2.selector(), is(
+                DefaultTrafficSelector.builder(intent.selector()).matchInPort(d2p0.port()).build()
+        ));
+        assertThat(rule2.treatment(), is(
+                DefaultTrafficTreatment.builder().setOutput(d2p1.port()).build()
+        ));
+
+        FlowRule rule3 = rules.stream()
+                .filter(rule -> rule.deviceId().equals(d3p0.deviceId()))
+                .findFirst()
+                .get();
+        assertThat(rule3.selector(), is(
+                DefaultTrafficSelector.builder(intent.selector()).matchInPort(d3p1.port()).build()
+        ));
+        assertThat(rule3.treatment(), is(
+                DefaultTrafficTreatment.builder().setOutput(d3p1.port()).build()
+        ));
+
+        sut.deactivate();
+    }
+}
diff --git a/core/net/src/test/java/org/onosproject/net/intent/impl/compiler/MplsPathIntentCompilerTest.java b/core/net/src/test/java/org/onosproject/net/intent/impl/compiler/MplsPathIntentCompilerTest.java
new file mode 100644
index 0000000..574bc05
--- /dev/null
+++ b/core/net/src/test/java/org/onosproject/net/intent/impl/compiler/MplsPathIntentCompilerTest.java
@@ -0,0 +1,142 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.net.intent.impl.compiler;
+
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+import java.util.Optional;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onlab.packet.MplsLabel;
+import org.onosproject.TestApplicationId;
+import org.onosproject.core.ApplicationId;
+import org.onosproject.core.CoreService;
+import org.onosproject.core.IdGenerator;
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.DefaultLink;
+import org.onosproject.net.DefaultPath;
+import org.onosproject.net.Link;
+import org.onosproject.net.flow.DefaultTrafficSelector;
+import org.onosproject.net.flow.DefaultTrafficTreatment;
+import org.onosproject.net.flow.FlowRule;
+import org.onosproject.net.flow.TrafficSelector;
+import org.onosproject.net.flow.TrafficTreatment;
+import org.onosproject.net.intent.FlowRuleIntent;
+import org.onosproject.net.intent.Intent;
+import org.onosproject.net.intent.IntentExtensionService;
+import org.onosproject.net.intent.IntentTestsMocks;
+import org.onosproject.net.intent.MockIdGenerator;
+import org.onosproject.net.intent.MplsPathIntent;
+import org.onosproject.store.trivial.impl.SimpleLinkStore;
+
+import static org.easymock.EasyMock.createMock;
+import static org.easymock.EasyMock.expect;
+import static org.easymock.EasyMock.replay;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.hasSize;
+import static org.hamcrest.Matchers.is;
+import static org.onosproject.net.Link.Type.DIRECT;
+import static org.onosproject.net.NetTestTools.APP_ID;
+import static org.onosproject.net.NetTestTools.PID;
+import static org.onosproject.net.NetTestTools.connectPoint;
+
+public class MplsPathIntentCompilerTest {
+
+    private final ApplicationId appId = new TestApplicationId("test");
+
+    private final ConnectPoint d1p1 = connectPoint("s1", 0);
+    private final ConnectPoint d2p0 = connectPoint("s2", 0);
+    private final ConnectPoint d2p1 = connectPoint("s2", 1);
+    private final ConnectPoint d3p1 = connectPoint("s3", 1);
+
+    private final TrafficSelector selector = DefaultTrafficSelector.builder().build();
+    private final TrafficTreatment treatment = DefaultTrafficTreatment.builder().build();
+
+    private final Optional<MplsLabel> ingressLabel =
+            Optional.of(MplsLabel.mplsLabel(10));
+    private final Optional<MplsLabel> egressLabel =
+            Optional.of(MplsLabel.mplsLabel(20));
+
+    private final List<Link> links = Arrays.asList(
+            new DefaultLink(PID, d1p1, d2p0, DIRECT),
+            new DefaultLink(PID, d2p1, d3p1, DIRECT)
+    );
+
+    private IdGenerator idGenerator = new MockIdGenerator();
+
+    private final int hops = links.size() - 1;
+    private MplsPathIntent intent;
+    private MplsPathIntentCompiler sut;
+
+    @Before
+    public void setUp() {
+        sut = new MplsPathIntentCompiler();
+        CoreService coreService = createMock(CoreService.class);
+        expect(coreService.registerApplication("org.onosproject.net.intent"))
+                .andReturn(appId);
+        sut.coreService = coreService;
+        sut.linkStore = new SimpleLinkStore();
+        sut.resourceService = new IntentTestsMocks.MockResourceService();
+
+        Intent.bindIdGenerator(idGenerator);
+
+        intent = MplsPathIntent.builder()
+                .appId(APP_ID)
+                .selector(selector)
+                .treatment(treatment)
+                .path(new DefaultPath(PID, links, hops))
+                .ingressLabel(ingressLabel)
+                .egressLabel(egressLabel)
+                .priority(55)
+                .build();
+
+        IntentExtensionService intentExtensionService = createMock(IntentExtensionService.class);
+        intentExtensionService.registerCompiler(MplsPathIntent.class, sut);
+        intentExtensionService.unregisterCompiler(MplsPathIntent.class);
+        sut.intentExtensionService = intentExtensionService;
+
+        replay(coreService, intentExtensionService);
+    }
+
+    @After
+    public void tearDown() {
+        Intent.unbindIdGenerator(idGenerator);
+    }
+
+    @Test
+    public void testCompile() {
+        sut.activate();
+
+        List<Intent> compiled = sut.compile(intent, Collections.emptyList(), Collections.emptySet());
+        assertThat(compiled, hasSize(1));
+
+        Collection<FlowRule> rules = ((FlowRuleIntent) compiled.get(0)).flowRules();
+        assertThat(rules, hasSize(1));
+
+        FlowRule rule = rules.stream()
+                .filter(x -> x.deviceId().equals(d2p0.deviceId()))
+                .findFirst()
+                .get();
+        assertThat(rule.deviceId(), is(d2p0.deviceId()));
+
+        sut.deactivate();
+
+    }
+}
diff --git a/core/net/src/test/java/org/onosproject/net/intent/impl/compiler/OpticalPathIntentCompilerTest.java b/core/net/src/test/java/org/onosproject/net/intent/impl/compiler/OpticalPathIntentCompilerTest.java
new file mode 100644
index 0000000..08e8e4f
--- /dev/null
+++ b/core/net/src/test/java/org/onosproject/net/intent/impl/compiler/OpticalPathIntentCompilerTest.java
@@ -0,0 +1,137 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.net.intent.impl.compiler;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onosproject.TestApplicationId;
+import org.onosproject.core.ApplicationId;
+import org.onosproject.core.CoreService;
+import org.onosproject.core.IdGenerator;
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.DefaultLink;
+import org.onosproject.net.DefaultPath;
+import org.onosproject.net.Link;
+import org.onosproject.net.flow.DefaultTrafficSelector;
+import org.onosproject.net.flow.DefaultTrafficTreatment;
+import org.onosproject.net.flow.FlowRule;
+import org.onosproject.net.flow.TrafficSelector;
+import org.onosproject.net.flow.TrafficTreatment;
+import org.onosproject.net.intent.FlowRuleIntent;
+import org.onosproject.net.intent.Intent;
+import org.onosproject.net.intent.IntentExtensionService;
+import org.onosproject.net.intent.IntentTestsMocks;
+import org.onosproject.net.intent.MockIdGenerator;
+import org.onosproject.net.intent.OpticalPathIntent;
+import org.onosproject.net.provider.ProviderId;
+
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+
+import static org.easymock.EasyMock.createMock;
+import static org.easymock.EasyMock.expect;
+import static org.easymock.EasyMock.replay;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.hasSize;
+import static org.onosproject.net.Link.Type.DIRECT;
+import static org.onosproject.net.NetTestTools.PID;
+import static org.onosproject.net.NetTestTools.connectPoint;
+
+public class OpticalPathIntentCompilerTest {
+
+    private CoreService coreService;
+    private IntentExtensionService intentExtensionService;
+    private final IdGenerator idGenerator = new MockIdGenerator();
+    private OpticalPathIntentCompiler sut;
+
+    private final TrafficSelector selector = DefaultTrafficSelector.builder().build();
+    private final TrafficTreatment treatment = DefaultTrafficTreatment.builder().build();
+    private final ApplicationId appId = new TestApplicationId("test");
+    private final ProviderId pid = new ProviderId("of", "test");
+    private final ConnectPoint d1p1 = connectPoint("s1", 0);
+    private final ConnectPoint d2p0 = connectPoint("s2", 0);
+    private final ConnectPoint d2p1 = connectPoint("s2", 1);
+    private final ConnectPoint d3p1 = connectPoint("s3", 1);
+    private final ConnectPoint d3p0 = connectPoint("s3", 10);
+    private final ConnectPoint d1p0 = connectPoint("s1", 10);
+
+    private final List<Link> links = Arrays.asList(
+            new DefaultLink(PID, d1p1, d2p0, DIRECT),
+            new DefaultLink(PID, d2p1, d3p1, DIRECT)
+    );
+    private final int hops = links.size() + 1;
+    private OpticalPathIntent intent;
+
+    @Before
+    public void setUp() {
+        sut = new OpticalPathIntentCompiler();
+        coreService = createMock(CoreService.class);
+        expect(coreService.registerApplication("org.onosproject.net.intent"))
+                .andReturn(appId);
+        sut.coreService = coreService;
+
+        Intent.bindIdGenerator(idGenerator);
+
+        intent = OpticalPathIntent.builder()
+                .appId(appId)
+                .src(d1p1)
+                .dst(d3p1)
+                .path(new DefaultPath(PID, links, hops))
+                .build();
+        intentExtensionService = createMock(IntentExtensionService.class);
+        intentExtensionService.registerCompiler(OpticalPathIntent.class, sut);
+        intentExtensionService.unregisterCompiler(OpticalPathIntent.class);
+        sut.intentManager = intentExtensionService;
+        sut.resourceService = new IntentTestsMocks.MockResourceService();
+
+        replay(coreService, intentExtensionService);
+    }
+
+    @After
+    public void tearDown() {
+        Intent.unbindIdGenerator(idGenerator);
+    }
+
+    @Test
+    public void testCompiler() {
+        sut.activate();
+
+        List<Intent> compiled = sut.compile(intent, Collections.emptyList(), Collections.emptySet());
+        assertThat(compiled, hasSize(1));
+
+        Collection<FlowRule> rules = ((FlowRuleIntent) compiled.get(0)).flowRules();
+        rules.stream()
+                .filter(x -> x.deviceId().equals(d1p1.deviceId()))
+                .findFirst()
+                .get();
+
+        rules.stream()
+                .filter(x -> x.deviceId().equals(d2p1.deviceId()))
+                .findFirst()
+                .get();
+
+        rules.stream()
+                .filter(x -> x.deviceId().equals(d3p1.deviceId()))
+                .findFirst()
+                .get();
+
+        sut.deactivate();
+    }
+
+}
diff --git a/core/net/src/test/java/org/onosproject/net/intent/impl/compiler/PathIntentCompilerTest.java b/core/net/src/test/java/org/onosproject/net/intent/impl/compiler/PathIntentCompilerTest.java
new file mode 100644
index 0000000..058b607
--- /dev/null
+++ b/core/net/src/test/java/org/onosproject/net/intent/impl/compiler/PathIntentCompilerTest.java
@@ -0,0 +1,167 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.net.intent.impl.compiler;
+
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onosproject.TestApplicationId;
+import org.onosproject.core.ApplicationId;
+import org.onosproject.core.CoreService;
+import org.onosproject.core.IdGenerator;
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.DefaultLink;
+import org.onosproject.net.DefaultPath;
+import org.onosproject.net.Link;
+import org.onosproject.net.flow.DefaultTrafficSelector;
+import org.onosproject.net.flow.DefaultTrafficTreatment;
+import org.onosproject.net.flow.FlowRule;
+import org.onosproject.net.flow.TrafficSelector;
+import org.onosproject.net.flow.TrafficTreatment;
+import org.onosproject.net.intent.FlowRuleIntent;
+import org.onosproject.net.intent.Intent;
+import org.onosproject.net.intent.IntentExtensionService;
+import org.onosproject.net.intent.MockIdGenerator;
+import org.onosproject.net.intent.PathIntent;
+import org.onosproject.net.provider.ProviderId;
+
+import static org.easymock.EasyMock.createMock;
+import static org.easymock.EasyMock.expect;
+import static org.easymock.EasyMock.replay;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.hasSize;
+import static org.hamcrest.Matchers.is;
+import static org.onosproject.net.DefaultEdgeLink.createEdgeLink;
+import static org.onosproject.net.Link.Type.DIRECT;
+import static org.onosproject.net.NetTestTools.APP_ID;
+import static org.onosproject.net.NetTestTools.PID;
+import static org.onosproject.net.NetTestTools.connectPoint;
+
+/**
+ * Unit tests for PathIntentCompiler.
+ */
+public class PathIntentCompilerTest {
+
+    private CoreService coreService;
+    private IntentExtensionService intentExtensionService;
+    private IdGenerator idGenerator = new MockIdGenerator();
+    private PathIntentCompiler sut;
+
+    private final TrafficSelector selector = DefaultTrafficSelector.builder().build();
+    private final TrafficTreatment treatment = DefaultTrafficTreatment.builder().build();
+    private final ApplicationId appId = new TestApplicationId("test");
+    private final ProviderId pid = new ProviderId("of", "test");
+    private final ConnectPoint d1p1 = connectPoint("s1", 0);
+    private final ConnectPoint d2p0 = connectPoint("s2", 0);
+    private final ConnectPoint d2p1 = connectPoint("s2", 1);
+    private final ConnectPoint d3p1 = connectPoint("s3", 1);
+    private final ConnectPoint d3p0 = connectPoint("s3", 10);
+    private final ConnectPoint d1p0 = connectPoint("s1", 10);
+
+    private final List<Link> links = Arrays.asList(
+            createEdgeLink(d1p0, true),
+            new DefaultLink(PID, d1p1, d2p0, DIRECT),
+            new DefaultLink(PID, d2p1, d3p1, DIRECT),
+            createEdgeLink(d3p0, false)
+    );
+    private final int hops = links.size() - 1;
+    private PathIntent intent;
+
+    /**
+     * Configures objects used in all the test cases.
+     */
+    @Before
+    public void setUp() {
+        sut = new PathIntentCompiler();
+        coreService = createMock(CoreService.class);
+        expect(coreService.registerApplication("org.onosproject.net.intent"))
+                .andReturn(appId);
+        sut.coreService = coreService;
+
+        Intent.bindIdGenerator(idGenerator);
+
+        intent = PathIntent.builder()
+                .appId(APP_ID)
+                .selector(selector)
+                .treatment(treatment)
+                .path(new DefaultPath(pid, links, hops))
+                .build();
+        intentExtensionService = createMock(IntentExtensionService.class);
+        intentExtensionService.registerCompiler(PathIntent.class, sut);
+        intentExtensionService.unregisterCompiler(PathIntent.class);
+        sut.intentManager = intentExtensionService;
+
+        replay(coreService, intentExtensionService);
+    }
+
+    /**
+     * Tears down objects used in all the test cases.
+     */
+    @After
+    public void tearDown() {
+        Intent.unbindIdGenerator(idGenerator);
+    }
+
+    /**
+     * Tests the compilation behavior of the path intent compiler.
+     */
+    @Test
+    public void testCompile() {
+        sut.activate();
+
+        List<Intent> compiled = sut.compile(intent, Collections.emptyList(), Collections.emptySet());
+        assertThat(compiled, hasSize(1));
+
+        Collection<FlowRule> rules = ((FlowRuleIntent) compiled.get(0)).flowRules();
+
+        FlowRule rule1 = rules.stream()
+                .filter(x -> x.deviceId().equals(d1p0.deviceId()))
+                .findFirst()
+                .get();
+        assertThat(rule1.deviceId(), is(d1p0.deviceId()));
+        assertThat(rule1.selector(),
+                is(DefaultTrafficSelector.builder(selector).matchInPort(d1p0.port()).build()));
+        assertThat(rule1.treatment(),
+                is(DefaultTrafficTreatment.builder().setOutput(d1p1.port()).build()));
+
+        FlowRule rule2 = rules.stream()
+                .filter(x -> x.deviceId().equals(d2p0.deviceId()))
+                .findFirst()
+                .get();
+        assertThat(rule2.deviceId(), is(d2p0.deviceId()));
+        assertThat(rule2.selector(),
+                is(DefaultTrafficSelector.builder(selector).matchInPort(d2p0.port()).build()));
+        assertThat(rule2.treatment(),
+                is(DefaultTrafficTreatment.builder().setOutput(d2p1.port()).build()));
+
+        FlowRule rule3 = rules.stream()
+                .filter(x -> x.deviceId().equals(d3p0.deviceId()))
+                .findFirst()
+                .get();
+        assertThat(rule3.deviceId(), is(d3p1.deviceId()));
+        assertThat(rule3.selector(),
+                is(DefaultTrafficSelector.builder(selector).matchInPort(d3p1.port()).build()));
+        assertThat(rule3.treatment(),
+                is(DefaultTrafficTreatment.builder(treatment).setOutput(d3p0.port()).build()));
+
+        sut.deactivate();
+    }
+}
diff --git a/core/net/src/test/java/org/onosproject/net/intent/impl/installer/IntentInstallerTest.java b/core/net/src/test/java/org/onosproject/net/intent/impl/installer/IntentInstallerTest.java
deleted file mode 100644
index e6c723c..0000000
--- a/core/net/src/test/java/org/onosproject/net/intent/impl/installer/IntentInstallerTest.java
+++ /dev/null
@@ -1,135 +0,0 @@
-/*
- * Copyright 2015 Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onosproject.net.intent.impl.installer;
-
-import org.junit.After;
-import org.junit.Before;
-import org.onosproject.core.ApplicationId;
-import org.onosproject.core.CoreService;
-import org.onosproject.core.CoreServiceAdapter;
-import org.onosproject.core.IdGenerator;
-import org.onosproject.net.ConnectPoint;
-import org.onosproject.net.DeviceId;
-import org.onosproject.net.flow.FlowRuleOperation;
-import org.onosproject.net.intent.FakeIntentManager;
-import org.onosproject.net.intent.Intent;
-import org.onosproject.net.intent.IntentInstaller;
-import org.onosproject.net.intent.IntentTestsMocks;
-import org.onosproject.net.intent.MockIdGenerator;
-
-import static org.hamcrest.MatcherAssert.assertThat;
-import static org.hamcrest.Matchers.equalTo;
-import static org.hamcrest.Matchers.is;
-import static org.onosproject.net.NetTestTools.APP_ID;
-import static org.onosproject.net.NetTestTools.connectPoint;
-
-/**
- * Base class for intent installer tests.
- */
-public class IntentInstallerTest {
-
-    /**
-     * Mock for core service.
-     */
-    static class TestCoreService extends CoreServiceAdapter {
-
-        String registeredId = "";
-
-        @Override
-        public ApplicationId registerApplication(String identifier) {
-            registeredId = identifier;
-            return APP_ID;
-        }
-    }
-
-    /**
-     * Mock for intent manager service. Checks that the PathIntent
-     * installer installs and uninstalls properly.
-     */
-    static class MockIntentManager extends FakeIntentManager {
-
-        boolean installerRegistered = false;
-        final Class expectedClass;
-
-        private MockIntentManager() {
-            expectedClass = null;
-        }
-
-        MockIntentManager(Class expectedInstaller) {
-            this.expectedClass = expectedInstaller;
-        }
-
-        @Override
-        public <T extends Intent> void registerInstaller(
-                Class<T> cls,
-                IntentInstaller<T> installer) {
-            assertThat(cls, equalTo(expectedClass));
-            installerRegistered = true;
-        }
-
-        @Override
-        public <T extends Intent> void unregisterInstaller(Class<T> cls) {
-            assertThat(cls, equalTo(expectedClass));
-            assertThat(installerRegistered, is(true));
-        }
-
-    }
-
-    CoreService testCoreService;
-    IdGenerator idGenerator = new MockIdGenerator();
-    IntentInstaller installer;
-
-    final IntentTestsMocks.MockSelector selector = new IntentTestsMocks.MockSelector();
-    final IntentTestsMocks.MockTreatment treatment = new IntentTestsMocks.MockTreatment();
-    final ConnectPoint d1p1 = connectPoint("s1", 0);
-    final ConnectPoint d2p0 = connectPoint("s2", 0);
-    final ConnectPoint d2p1 = connectPoint("s2", 1);
-    final ConnectPoint d3p1 = connectPoint("s3", 1);
-    final ConnectPoint d3p0 = connectPoint("s3", 10);
-    final ConnectPoint d1p0 = connectPoint("s1", 10);
-
-    /**
-     * Configures objects used in all the test cases.
-     */
-    @Before
-    public void setUp() {
-        testCoreService = new TestCoreService();
-        Intent.bindIdGenerator(idGenerator);
-    }
-
-    /**
-     * Tears down objects used in all the test cases.
-     */
-    @After
-    public void tearDown() {
-        Intent.unbindIdGenerator(idGenerator);
-    }
-
-    /**
-     * Checks that a flow operation contains the correct values.
-     *
-     * @param op flow rule operation to check
-     * @param type type the flow rule operation should have
-     * @param deviceId device id the flow rule operation should have
-     */
-    void checkFlowOperation(FlowRuleOperation op,
-                                    FlowRuleOperation.Type type,
-                                    DeviceId deviceId) {
-        assertThat(op.type(), is(type));
-        assertThat(op.rule().deviceId(), equalTo(deviceId));
-    }
-
-}
diff --git a/core/net/src/test/java/org/onosproject/net/intent/impl/installer/LinkCollectionIntentInstallerTest.java b/core/net/src/test/java/org/onosproject/net/intent/impl/installer/LinkCollectionIntentInstallerTest.java
deleted file mode 100644
index 00ebedf..0000000
--- a/core/net/src/test/java/org/onosproject/net/intent/impl/installer/LinkCollectionIntentInstallerTest.java
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- * Copyright 2015 Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onosproject.net.intent.impl.installer;
-
-import java.util.Collection;
-import java.util.List;
-import java.util.Set;
-
-import org.junit.Before;
-import org.junit.Test;
-import org.onosproject.net.DefaultLink;
-import org.onosproject.net.DeviceId;
-import org.onosproject.net.Link;
-import org.onosproject.net.flow.FlowRuleOperation;
-import org.onosproject.net.intent.LinkCollectionIntent;
-
-import com.google.common.collect.ImmutableSet;
-
-import static org.hamcrest.MatcherAssert.assertThat;
-import static org.hamcrest.Matchers.hasSize;
-import static org.hamcrest.Matchers.notNullValue;
-import static org.onosproject.net.Link.Type.DIRECT;
-import static org.onosproject.net.NetTestTools.APP_ID;
-import static org.onosproject.net.NetTestTools.PID;
-
-public class LinkCollectionIntentInstallerTest extends  IntentInstallerTest {
-
-    LinkCollectionIntentInstaller installer;
-
-    private final Set<Link> links = ImmutableSet.of(
-            new DefaultLink(PID, d1p1, d2p0, DIRECT),
-            new DefaultLink(PID, d2p1, d3p1, DIRECT),
-            new DefaultLink(PID, d1p1, d3p1, DIRECT));
-
-    private LinkCollectionIntent intent;
-
-    /**
-     * Configures objects used in all the test cases.
-     */
-    @Before
-    public void localSetUp() {
-        installer = new LinkCollectionIntentInstaller();
-        installer.coreService = testCoreService;
-        installer.intentManager =
-                new IntentInstallerTest.MockIntentManager(LinkCollectionIntent.class);
-        intent = LinkCollectionIntent.builder()
-                .appId(APP_ID)
-                .selector(selector)
-                .treatment(treatment)
-                .links(links)
-                .ingressPoints(ImmutableSet.of(d1p1))
-                .egressPoints(ImmutableSet.of(d3p1))
-                .build();
-    }
-
-    private FlowRuleOperation findOperation(Collection<FlowRuleOperation> ops,
-                                            DeviceId deviceId) {
-        for (FlowRuleOperation op : ops) {
-            if (op.rule().deviceId().equals(deviceId)) {
-                return op;
-            }
-        }
-        return null;
-    }
-
-    /**
-     * Tests activation and deactivation of the installer.
-     */
-    @Test
-    public void activateDeactivate() {
-        installer.activate();
-        installer.deactivate();
-    }
-
-    /**
-     * Tests installation operation of the path intent installer.
-     */
-    @Test
-    public void install() {
-        installer.activate();
-
-        List<Collection<FlowRuleOperation>> operations =
-                installer.install(intent);
-        assertThat(operations, notNullValue());
-        assertThat(operations, hasSize(1));
-
-        Collection<FlowRuleOperation> flowRuleOpsCollection = operations.get(0);
-        assertThat(flowRuleOpsCollection, hasSize(links.size()));
-
-        FlowRuleOperation op0 = findOperation(flowRuleOpsCollection,
-                d1p0.deviceId());
-        checkFlowOperation(op0, FlowRuleOperation.Type.ADD, d1p0.deviceId());
-
-        FlowRuleOperation op1 = findOperation(flowRuleOpsCollection,
-                d2p0.deviceId());
-        checkFlowOperation(op1, FlowRuleOperation.Type.ADD, d2p0.deviceId());
-
-        FlowRuleOperation op2 = findOperation(flowRuleOpsCollection,
-                d3p0.deviceId());
-        checkFlowOperation(op2, FlowRuleOperation.Type.ADD, d3p0.deviceId());
-
-        installer.deactivate();
-    }
-
-    /**
-     * Checks the uninstall operation of the path intent installer.
-     */
-    @Test
-    public void uninstall() {
-        installer.activate();
-
-        List<Collection<FlowRuleOperation>> operations =
-                installer.uninstall(intent);
-        assertThat(operations, notNullValue());
-        assertThat(operations, hasSize(1));
-
-        Collection<FlowRuleOperation> flowRuleOpsCollection = operations.get(0);
-        assertThat(flowRuleOpsCollection, hasSize(links.size()));
-
-        FlowRuleOperation op0 = findOperation(flowRuleOpsCollection,
-                d1p0.deviceId());
-        checkFlowOperation(op0, FlowRuleOperation.Type.REMOVE, d1p0.deviceId());
-
-        FlowRuleOperation op1 = findOperation(flowRuleOpsCollection,
-                d2p0.deviceId());
-        checkFlowOperation(op1, FlowRuleOperation.Type.REMOVE, d2p0.deviceId());
-
-        FlowRuleOperation op2 = findOperation(flowRuleOpsCollection,
-                d3p0.deviceId());
-        checkFlowOperation(op2, FlowRuleOperation.Type.REMOVE, d3p0.deviceId());
-
-        installer.deactivate();
-    }
-}
diff --git a/core/net/src/test/java/org/onosproject/net/intent/impl/installer/MplsPathIntentInstallerTest.java b/core/net/src/test/java/org/onosproject/net/intent/impl/installer/MplsPathIntentInstallerTest.java
deleted file mode 100644
index e88947c..0000000
--- a/core/net/src/test/java/org/onosproject/net/intent/impl/installer/MplsPathIntentInstallerTest.java
+++ /dev/null
@@ -1,136 +0,0 @@
-/*
- * Copyright 2015 Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onosproject.net.intent.impl.installer;
-
-import java.util.Arrays;
-import java.util.Collection;
-import java.util.List;
-import java.util.Optional;
-
-import org.junit.Before;
-import org.junit.Test;
-import org.onlab.packet.MplsLabel;
-import org.onosproject.net.DefaultLink;
-import org.onosproject.net.DefaultPath;
-import org.onosproject.net.Link;
-import org.onosproject.net.flow.FlowRuleOperation;
-import org.onosproject.net.intent.IntentTestsMocks;
-import org.onosproject.net.intent.MplsPathIntent;
-import org.onosproject.store.trivial.impl.SimpleLinkStore;
-
-import static org.hamcrest.MatcherAssert.assertThat;
-import static org.hamcrest.Matchers.hasSize;
-import static org.hamcrest.Matchers.notNullValue;
-import static org.onosproject.net.Link.Type.DIRECT;
-import static org.onosproject.net.NetTestTools.APP_ID;
-import static org.onosproject.net.NetTestTools.PID;
-
-/**
- * Unit tests for path intent installer.
- */
-public class  MplsPathIntentInstallerTest extends IntentInstallerTest {
-
-    MplsPathIntentInstaller installer;
-
-    private final Optional<MplsLabel> ingressLabel =
-            Optional.of(MplsLabel.mplsLabel(10));
-    private final Optional<MplsLabel> egressLabel =
-            Optional.of(MplsLabel.mplsLabel(20));
-
-    private final List<Link> links = Arrays.asList(
-            new DefaultLink(PID, d1p1, d2p0, DIRECT),
-            new DefaultLink(PID, d2p1, d3p1, DIRECT)
-    );
-    private final int hops = links.size() - 1;
-    private MplsPathIntent intent;
-
-    /**
-     * Configures objects used in all the test cases.
-     */
-    @Before
-    public void localSetUp() {
-        installer = new MplsPathIntentInstaller();
-        installer.coreService = testCoreService;
-        installer.intentManager = new MockIntentManager(MplsPathIntent.class);
-        installer.linkStore = new SimpleLinkStore();
-        installer.resourceService = new IntentTestsMocks.MockResourceService();
-
-        intent = MplsPathIntent.builder()
-                .appId(APP_ID)
-                .selector(selector)
-                .treatment(treatment)
-                .path(new DefaultPath(PID, links, hops))
-                .ingressLabel(ingressLabel)
-                .egressLabel(egressLabel)
-                .priority(55)
-                .build();
-    }
-
-    /**
-     * Tests activation and deactivation of the installer.
-     */
-    @Test
-    public void activateDeactivate() {
-        installer.activate();
-        installer.deactivate();
-    }
-
-    /**
-     * Tests installation operation of the MPLS path intent installer.
-     */
-    @Test
-    public void install() {
-        installer.activate();
-
-        List<Collection<FlowRuleOperation>> operations =
-                installer.install(intent);
-        assertThat(operations, notNullValue());
-        assertThat(operations, hasSize(1));
-
-        Collection<FlowRuleOperation> flowRuleOpsCollection = operations.get(0);
-        assertThat(flowRuleOpsCollection, hasSize(hops));
-        FlowRuleOperation[] flowRuleOps =
-                flowRuleOpsCollection.toArray(new FlowRuleOperation[hops]);
-
-        FlowRuleOperation op0 = flowRuleOps[0];
-        checkFlowOperation(op0, FlowRuleOperation.Type.ADD, d2p0.deviceId());
-
-        installer.deactivate();
-    }
-
-    /**
-     * Checks the uninstall operation of the path intent installer.
-     */
-    @Test
-    public void uninstall() {
-        installer.activate();
-
-        List<Collection<FlowRuleOperation>> operations =
-                installer.uninstall(intent);
-        assertThat(operations, notNullValue());
-        assertThat(operations, hasSize(1));
-
-        Collection<FlowRuleOperation> flowRuleOpsCollection = operations.get(0);
-        assertThat(flowRuleOpsCollection, hasSize(hops));
-        FlowRuleOperation[] flowRuleOps =
-                flowRuleOpsCollection.toArray(new FlowRuleOperation[hops]);
-
-        FlowRuleOperation op0 = flowRuleOps[0];
-        checkFlowOperation(op0, FlowRuleOperation.Type.REMOVE, d2p0.deviceId());
-
-        installer.deactivate();
-    }
-}
diff --git a/core/net/src/test/java/org/onosproject/net/intent/impl/installer/OpticalPathIntentInstallerTest.java b/core/net/src/test/java/org/onosproject/net/intent/impl/installer/OpticalPathIntentInstallerTest.java
deleted file mode 100644
index 4aad8a5..0000000
--- a/core/net/src/test/java/org/onosproject/net/intent/impl/installer/OpticalPathIntentInstallerTest.java
+++ /dev/null
@@ -1,134 +0,0 @@
-/*
- * Copyright 2015 Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onosproject.net.intent.impl.installer;
-
-import java.util.Arrays;
-import java.util.Collection;
-import java.util.List;
-
-import org.junit.Before;
-import org.junit.Test;
-import org.onosproject.net.DefaultLink;
-import org.onosproject.net.DefaultPath;
-import org.onosproject.net.Link;
-import org.onosproject.net.flow.FlowRuleOperation;
-import org.onosproject.net.intent.IntentTestsMocks;
-import org.onosproject.net.intent.OpticalPathIntent;
-
-import static org.hamcrest.MatcherAssert.assertThat;
-import static org.hamcrest.Matchers.hasSize;
-import static org.hamcrest.Matchers.notNullValue;
-import static org.onosproject.net.Link.Type.DIRECT;
-import static org.onosproject.net.NetTestTools.APP_ID;
-import static org.onosproject.net.NetTestTools.PID;
-
-public class OpticalPathIntentInstallerTest extends IntentInstallerTest {
-
-    OpticalPathIntentInstaller installer;
-
-    private final List<Link> links = Arrays.asList(
-            new DefaultLink(PID, d1p1, d2p0, DIRECT),
-            new DefaultLink(PID, d2p1, d3p1, DIRECT)
-    );
-    private final int hops = links.size() + 1;
-    private OpticalPathIntent intent;
-
-    /**
-     * Configures objects used in all the test cases.
-     */
-    @Before
-    public void localSetUp() {
-        installer = new OpticalPathIntentInstaller();
-        installer.coreService = testCoreService;
-        installer.intentManager =
-                new IntentInstallerTest.MockIntentManager(OpticalPathIntent.class);
-        installer.resourceService = new IntentTestsMocks.MockResourceService();
-
-        intent = OpticalPathIntent.builder().appId(APP_ID)
-                .src(d1p1)
-                .dst(d3p1)
-                .path(new DefaultPath(PID, links, hops))
-                .build();
-    }
-
-    /**
-     * Tests activation and deactivation of the installer.
-     */
-    @Test
-    public void activateDeactivate() {
-        installer.activate();
-        installer.deactivate();
-    }
-
-    /**
-     * Tests installation operation of the optical path intent installer.
-     */
-    @Test
-    public void install() {
-        installer.activate();
-
-        List<Collection<FlowRuleOperation>> operations =
-                installer.install(intent);
-        assertThat(operations, notNullValue());
-        assertThat(operations, hasSize(1));
-
-        Collection<FlowRuleOperation> flowRuleOpsCollection = operations.get(0);
-        assertThat(flowRuleOpsCollection, hasSize(hops));
-        FlowRuleOperation[] flowRuleOps =
-                flowRuleOpsCollection.toArray(new FlowRuleOperation[hops]);
-
-        FlowRuleOperation op0 = flowRuleOps[0];
-        checkFlowOperation(op0, FlowRuleOperation.Type.ADD, d1p1.deviceId());
-
-        FlowRuleOperation op1 = flowRuleOps[1];
-        checkFlowOperation(op1, FlowRuleOperation.Type.ADD, d2p1.deviceId());
-
-        FlowRuleOperation op2 = flowRuleOps[2];
-        checkFlowOperation(op2, FlowRuleOperation.Type.ADD, d3p1.deviceId());
-
-        installer.deactivate();
-    }
-
-    /**
-     * Checks the uninstall operation of the optical path intent installer.
-     */
-    @Test
-    public void uninstall() {
-        installer.activate();
-
-        List<Collection<FlowRuleOperation>> operations =
-                installer.uninstall(intent);
-        assertThat(operations, notNullValue());
-        assertThat(operations, hasSize(1));
-
-        Collection<FlowRuleOperation> flowRuleOpsCollection = operations.get(0);
-        assertThat(flowRuleOpsCollection, hasSize(hops));
-        FlowRuleOperation[] flowRuleOps =
-                flowRuleOpsCollection.toArray(new FlowRuleOperation[hops]);
-
-        FlowRuleOperation op0 = flowRuleOps[0];
-        checkFlowOperation(op0, FlowRuleOperation.Type.REMOVE, d1p1.deviceId());
-
-        FlowRuleOperation op1 = flowRuleOps[1];
-        checkFlowOperation(op1, FlowRuleOperation.Type.REMOVE, d2p1.deviceId());
-
-        FlowRuleOperation op2 = flowRuleOps[2];
-        checkFlowOperation(op2, FlowRuleOperation.Type.REMOVE, d3p1.deviceId());
-
-        installer.deactivate();
-    }
-
-}
diff --git a/core/net/src/test/java/org/onosproject/net/intent/impl/installer/PathConstraintCalculationTest.java b/core/net/src/test/java/org/onosproject/net/intent/impl/installer/PathConstraintCalculationTest.java
deleted file mode 100644
index 6e7606d..0000000
--- a/core/net/src/test/java/org/onosproject/net/intent/impl/installer/PathConstraintCalculationTest.java
+++ /dev/null
@@ -1,198 +0,0 @@
-/*
- * Copyright 2014 Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onosproject.net.intent.impl.installer;
-
-import org.junit.Before;
-import org.junit.Test;
-import org.onosproject.net.ConnectPoint;
-import org.onosproject.net.DefaultLink;
-import org.onosproject.net.DefaultPath;
-import org.onosproject.net.Link;
-import org.onosproject.net.flow.FlowRuleOperation;
-import org.onosproject.net.intent.AbstractIntentTest;
-import org.onosproject.net.intent.Constraint;
-import org.onosproject.net.intent.IntentTestsMocks;
-import org.onosproject.net.intent.PathIntent;
-import org.onosproject.net.intent.constraint.BandwidthConstraint;
-import org.onosproject.net.intent.constraint.LambdaConstraint;
-import org.onosproject.net.resource.Bandwidth;
-import org.onosproject.net.resource.Lambda;
-
-import java.util.Arrays;
-import java.util.Collection;
-import java.util.List;
-
-import static org.hamcrest.MatcherAssert.assertThat;
-import static org.hamcrest.Matchers.hasSize;
-import static org.hamcrest.Matchers.instanceOf;
-import static org.hamcrest.Matchers.notNullValue;
-import static org.junit.Assert.fail;
-import static org.onosproject.net.DefaultEdgeLink.createEdgeLink;
-import static org.onosproject.net.Link.Type.DIRECT;
-import static org.onosproject.net.NetTestTools.APP_ID;
-import static org.onosproject.net.NetTestTools.PID;
-import static org.onosproject.net.NetTestTools.connectPoint;
-import static org.onosproject.net.intent.IntentTestsMocks.MockResourceService.makeBandwidthResourceService;
-import static org.onosproject.net.intent.IntentTestsMocks.MockResourceService.makeLambdaResourceService;
-
-/**
- * Unit tests for calculating paths for intents with constraints.
- */
-
-public class PathConstraintCalculationTest extends AbstractIntentTest {
-
-    private final IntentTestsMocks.MockSelector selector = new IntentTestsMocks.MockSelector();
-    private final IntentTestsMocks.MockTreatment treatment = new IntentTestsMocks.MockTreatment();
-    private final ConnectPoint d1p1 = connectPoint("s1", 0);
-    private final ConnectPoint d2p0 = connectPoint("s2", 0);
-    private final ConnectPoint d2p1 = connectPoint("s2", 1);
-    private final ConnectPoint d3p1 = connectPoint("s3", 1);
-    private final ConnectPoint d3p0 = connectPoint("s3", 10);
-    private final ConnectPoint d1p0 = connectPoint("s1", 10);
-
-    private PathIntentInstaller sut;
-
-    @Before
-    public void setUpIntentInstaller() {
-        sut = new PathIntentInstaller();
-        sut.appId = APP_ID;
-    }
-
-    private PathIntent createPathIntent(List<Link> links, List<Constraint> constraints) {
-        int hops = links.size() - 1;
-        return PathIntent.builder()
-                .appId(APP_ID)
-                .selector(selector)
-                .treatment(treatment)
-                .path(new DefaultPath(PID, links, hops))
-                .constraints(constraints)
-                .priority(333)
-                .build();
-    }
-
-    /**
-     * Tests that installation of bandwidth constrained path intents are
-     * successful.
-     */
-    @Test
-    public void testInstallBandwidthConstrainedIntentSuccess() {
-
-        final Constraint constraint = new BandwidthConstraint(Bandwidth.bps(100.0));
-
-        List<Link> links = Arrays.asList(
-                createEdgeLink(d1p0, true),
-                new DefaultLink(PID, d1p1, d2p0, DIRECT),
-                new DefaultLink(PID, d2p1, d3p1, DIRECT),
-                createEdgeLink(d3p0, false)
-        );
-        PathIntent installable = createPathIntent(links, Arrays.asList(constraint));
-
-        sut.resourceService = makeBandwidthResourceService(1000.0);
-
-        final List<Collection<FlowRuleOperation>> flowOperations = sut.install(installable);
-
-        assertThat(flowOperations, notNullValue());
-        assertThat(flowOperations, hasSize(1));
-    }
-
-    /**
-     * Tests that installation of bandwidth constrained path intents fail
-     * if there are no available resources.
-     */
-    @Test
-    public void testInstallBandwidthConstrainedIntentFailure() {
-
-        final Constraint constraint = new BandwidthConstraint(Bandwidth.bps(100.0));
-
-        List<Link> links = Arrays.asList(
-                createEdgeLink(d1p0, true),
-                new DefaultLink(PID, d1p1, d2p0, DIRECT),
-                new DefaultLink(PID, d2p1, d3p1, DIRECT),
-                createEdgeLink(d3p0, false)
-        );
-        PathIntent installable = createPathIntent(links, Arrays.asList(constraint));
-
-        // Make it look like the available bandwidth was consumed
-        final IntentTestsMocks.MockResourceService resourceService = makeBandwidthResourceService(1000.0);
-        resourceService.setAvailableBandwidth(1.0);
-        sut.resourceService = resourceService;
-
-        try {
-            sut.install(installable);
-            fail("Bandwidth request with no available bandwidth did not fail.");
-        } catch (IntentTestsMocks.MockedAllocationFailure failure) {
-            assertThat(failure,
-                       instanceOf(IntentTestsMocks.MockedAllocationFailure.class));
-        }
-    }
-
-    /**
-     * Tests that installation of lambda constrained path intents are
-     * successful.
-     */
-    @Test
-    public void testInstallLambdaConstrainedIntentSuccess() {
-
-        final Constraint constraint = new LambdaConstraint(Lambda.valueOf(1));
-
-        List<Link> links = Arrays.asList(
-                createEdgeLink(d1p0, true),
-                new DefaultLink(PID, d1p1, d2p0, DIRECT),
-                new DefaultLink(PID, d2p1, d3p1, DIRECT),
-                createEdgeLink(d3p0, false)
-        );
-        PathIntent installable = createPathIntent(links, Arrays.asList(constraint));
-
-        sut.resourceService = makeLambdaResourceService(1);
-
-        final List<Collection<FlowRuleOperation>> flowOperations = sut.install(installable);
-
-        assertThat(flowOperations, notNullValue());
-        assertThat(flowOperations, hasSize(1));
-    }
-
-    /**
-     * Tests that installation of lambda constrained path intents fail
-     * if there are no available resources.
-     */
-    @Test
-    public void testInstallLambdaConstrainedIntentFailure() {
-
-        final Constraint constraint = new LambdaConstraint(Lambda.valueOf(1));
-
-        List<Link> links = Arrays.asList(
-                createEdgeLink(d1p0, true),
-                new DefaultLink(PID, d1p1, d2p0, DIRECT),
-                new DefaultLink(PID, d2p1, d3p1, DIRECT),
-                createEdgeLink(d3p0, false)
-        );
-        PathIntent installable = createPathIntent(links, Arrays.asList(constraint));
-
-        // Make it look like the available lambda was consumed
-        final IntentTestsMocks.MockResourceService resourceService = makeLambdaResourceService(1);
-        resourceService.setAvailableLambda(0);
-        sut.resourceService = resourceService;
-
-        try {
-            sut.install(installable);
-            fail("Lambda request with no available lambda did not fail.");
-        } catch (IntentTestsMocks.MockedAllocationFailure failure) {
-            assertThat(failure,
-                       instanceOf(IntentTestsMocks.MockedAllocationFailure.class));
-        }
-    }
-
-}
diff --git a/core/net/src/test/java/org/onosproject/net/intent/impl/installer/PathIntentInstallerTest.java b/core/net/src/test/java/org/onosproject/net/intent/impl/installer/PathIntentInstallerTest.java
deleted file mode 100644
index 9bbd16c..0000000
--- a/core/net/src/test/java/org/onosproject/net/intent/impl/installer/PathIntentInstallerTest.java
+++ /dev/null
@@ -1,137 +0,0 @@
-/*
- * Copyright 2015 Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onosproject.net.intent.impl.installer;
-
-import java.util.Arrays;
-import java.util.Collection;
-import java.util.List;
-
-import org.junit.Before;
-import org.junit.Test;
-import org.onosproject.net.DefaultLink;
-import org.onosproject.net.DefaultPath;
-import org.onosproject.net.Link;
-import org.onosproject.net.flow.FlowRuleOperation;
-import org.onosproject.net.intent.PathIntent;
-
-import static org.hamcrest.MatcherAssert.assertThat;
-import static org.hamcrest.Matchers.hasSize;
-import static org.hamcrest.Matchers.notNullValue;
-import static org.onosproject.net.DefaultEdgeLink.createEdgeLink;
-import static org.onosproject.net.Link.Type.DIRECT;
-import static org.onosproject.net.NetTestTools.APP_ID;
-import static org.onosproject.net.NetTestTools.PID;
-
-/**
- * Unit tests for path intent installer.
- */
-public class PathIntentInstallerTest extends IntentInstallerTest {
-
-    PathIntentInstaller installer;
-
-    private final List<Link> links = Arrays.asList(
-            createEdgeLink(d1p0, true),
-            new DefaultLink(PID, d1p1, d2p0, DIRECT),
-            new DefaultLink(PID, d2p1, d3p1, DIRECT),
-            createEdgeLink(d3p0, false)
-    );
-    private final int hops = links.size() - 1;
-    private PathIntent intent;
-
-    /**
-     * Configures objects used in all the test cases.
-     */
-    @Before
-    public void localSetUp() {
-        installer = new PathIntentInstaller();
-        installer.coreService = testCoreService;
-        installer.intentManager = new MockIntentManager(PathIntent.class);
-        intent = PathIntent.builder()
-                .appId(APP_ID)
-                .selector(selector)
-                .treatment(treatment)
-                .path(new DefaultPath(PID, links, hops))
-                .priority(77)
-                .build();
-    }
-
-    /**
-     * Tests activation and deactivation of the installer.
-     */
-    @Test
-    public void activateDeactivate() {
-        installer.activate();
-        installer.deactivate();
-    }
-
-    /**
-     * Tests installation operation of the path intent installer.
-     */
-    @Test
-    public void install() {
-        installer.activate();
-
-        List<Collection<FlowRuleOperation>> operations =
-            installer.install(intent);
-        assertThat(operations, notNullValue());
-        assertThat(operations, hasSize(1));
-
-        Collection<FlowRuleOperation> flowRuleOpsCollection = operations.get(0);
-        assertThat(flowRuleOpsCollection, hasSize(hops));
-        FlowRuleOperation[] flowRuleOps =
-                flowRuleOpsCollection.toArray(new FlowRuleOperation[hops]);
-
-        FlowRuleOperation op0 = flowRuleOps[0];
-        checkFlowOperation(op0, FlowRuleOperation.Type.ADD, d1p0.deviceId());
-
-        FlowRuleOperation op1 = flowRuleOps[1];
-        checkFlowOperation(op1, FlowRuleOperation.Type.ADD, d2p0.deviceId());
-
-        FlowRuleOperation op2 = flowRuleOps[2];
-        checkFlowOperation(op2, FlowRuleOperation.Type.ADD, d3p0.deviceId());
-
-        installer.deactivate();
-    }
-
-    /**
-     * Checks the uninstall operation of the path intent installer.
-     */
-    @Test
-    public void uninstall() {
-        installer.activate();
-
-        List<Collection<FlowRuleOperation>> operations =
-                installer.uninstall(intent);
-        assertThat(operations, notNullValue());
-        assertThat(operations, hasSize(1));
-
-        Collection<FlowRuleOperation> flowRuleOpsCollection = operations.get(0);
-        assertThat(flowRuleOpsCollection, hasSize(hops));
-        FlowRuleOperation[] flowRuleOps =
-                flowRuleOpsCollection.toArray(new FlowRuleOperation[hops]);
-
-        FlowRuleOperation op0 = flowRuleOps[0];
-        checkFlowOperation(op0, FlowRuleOperation.Type.REMOVE, d1p0.deviceId());
-
-        FlowRuleOperation op1 = flowRuleOps[1];
-        checkFlowOperation(op1, FlowRuleOperation.Type.REMOVE, d2p0.deviceId());
-
-        FlowRuleOperation op2 = flowRuleOps[2];
-        checkFlowOperation(op2, FlowRuleOperation.Type.REMOVE, d3p0.deviceId());
-
-        installer.deactivate();
-    }
-}
diff --git a/core/net/src/test/java/org/onosproject/net/intent/impl/phase/CompilingTest.java b/core/net/src/test/java/org/onosproject/net/intent/impl/phase/CompilingTest.java
index a968e4e..f3e91a4 100644
--- a/core/net/src/test/java/org/onosproject/net/intent/impl/phase/CompilingTest.java
+++ b/core/net/src/test/java/org/onosproject/net/intent/impl/phase/CompilingTest.java
@@ -121,12 +121,12 @@
         expect(processor.compile(input, null)).andReturn(Arrays.asList(compiled));
         replay(processor);
 
-        Compiling sut = new Compiling(processor, pending, null);
+        Compiling sut = new Compiling(processor, pending);
 
         Optional<IntentProcessPhase> output = sut.execute();
 
         verify(processor);
-        assertThat(output.get(), is(instanceOf(InstallCoordinating.class)));
+        assertThat(output.get(), is(instanceOf(Installing.class)));
     }
 
     /**
@@ -139,11 +139,11 @@
         expect(processor.compile(input, null)).andThrow(new IntentCompilationException());
         replay(processor);
 
-        Compiling sut = new Compiling(processor, pending, null);
+        Compiling sut = new Compiling(processor, pending);
 
         Optional<IntentProcessPhase> output = sut.execute();
 
         verify(processor);
-        assertThat(output.get(), is(instanceOf(CompilingFailed.class)));
+        assertThat(output.get(), is(instanceOf(CompileFailed.class)));
     }
 }
diff --git a/core/net/src/test/java/org/onosproject/net/intent/impl/phase/InstallingTest.java b/core/net/src/test/java/org/onosproject/net/intent/impl/phase/InstallingTest.java
deleted file mode 100644
index 8d4b334..0000000
--- a/core/net/src/test/java/org/onosproject/net/intent/impl/phase/InstallingTest.java
+++ /dev/null
@@ -1,155 +0,0 @@
-/*
- * Copyright 2015 Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onosproject.net.intent.impl.phase;
-
-import org.junit.After;
-import org.junit.Before;
-import org.junit.Test;
-import org.onosproject.TestApplicationId;
-import org.onosproject.core.ApplicationId;
-import org.onosproject.core.IdGenerator;
-import org.onosproject.net.ConnectPoint;
-import org.onosproject.net.DefaultLink;
-import org.onosproject.net.DefaultPath;
-import org.onosproject.net.Link;
-import org.onosproject.net.Path;
-import org.onosproject.net.flow.DefaultTrafficSelector;
-import org.onosproject.net.flow.DefaultTrafficTreatment;
-import org.onosproject.net.flow.FlowRuleOperations;
-import org.onosproject.net.flow.TrafficSelector;
-import org.onosproject.net.flow.TrafficTreatment;
-import org.onosproject.net.intent.Intent;
-import org.onosproject.net.intent.IntentData;
-import org.onosproject.net.intent.MockIdGenerator;
-import org.onosproject.net.intent.PathIntent;
-import org.onosproject.net.intent.PointToPointIntent;
-import org.onosproject.net.intent.impl.IntentInstallationException;
-import org.onosproject.net.intent.impl.IntentProcessor;
-import org.onosproject.net.provider.ProviderId;
-import org.onosproject.store.Timestamp;
-
-import java.util.Arrays;
-import java.util.List;
-import java.util.Optional;
-
-import static org.easymock.EasyMock.createMock;
-import static org.easymock.EasyMock.expectLastCall;
-import static org.easymock.EasyMock.replay;
-import static org.easymock.EasyMock.verify;
-import static org.hamcrest.Matchers.instanceOf;
-import static org.hamcrest.Matchers.is;
-import static org.junit.Assert.assertThat;
-import static org.onosproject.net.DeviceId.deviceId;
-import static org.onosproject.net.Link.Type.DIRECT;
-import static org.onosproject.net.PortNumber.portNumber;
-import static org.onosproject.net.intent.IntentState.INSTALL_REQ;
-
-/**
- * Unit tests for Installing phase.
- */
-public class InstallingTest {
-
-    private final ApplicationId appId = new TestApplicationId("test");
-    private final ProviderId pid = new ProviderId("of", "test");
-    private final TrafficSelector selector = DefaultTrafficSelector.emptySelector();
-    private final TrafficTreatment treatment = DefaultTrafficTreatment.emptyTreatment();
-    private final ConnectPoint cp1 = new ConnectPoint(deviceId("1"), portNumber(1));
-    private final ConnectPoint cp2 = new ConnectPoint(deviceId("1"), portNumber(2));
-    private final ConnectPoint cp3 = new ConnectPoint(deviceId("2"), portNumber(1));
-    private final ConnectPoint cp4 = new ConnectPoint(deviceId("2"), portNumber(2));
-
-    private final List<Link> links = Arrays.asList(new DefaultLink(pid, cp2, cp4, DIRECT));
-    private final Path path = new DefaultPath(pid, links, 10);
-
-    private PointToPointIntent input;
-    private PathIntent compiled;
-
-    private IdGenerator idGenerator;
-    private IntentProcessor processor;
-    private Timestamp version;
-
-    @Before
-    public void setUp() {
-        processor = createMock(IntentProcessor.class);
-        version = createMock(Timestamp.class);
-
-        idGenerator = new MockIdGenerator();
-
-        Intent.bindIdGenerator(idGenerator);
-
-        // Intent creation should be placed after binding an ID generator
-        input = PointToPointIntent.builder()
-                .appId(appId)
-                .selector(selector)
-                .treatment(treatment)
-                .ingressPoint(cp1)
-                .egressPoint(cp3)
-                .build();
-        compiled = PathIntent.builder()
-                .appId(appId)
-                .selector(selector)
-                .treatment(treatment)
-                .path(path)
-                .build();
-    }
-
-
-    @After
-    public void tearDown() {
-        Intent.unbindIdGenerator(idGenerator);
-    }
-
-    /**
-     * Tests a next phase when no exception occurs.
-     */
-    @Test
-    public void testMoveToNextPhaseWithoutError() {
-        IntentData pending = new IntentData(input, INSTALL_REQ, version);
-        pending.setInstallables(Arrays.asList(compiled));
-
-        FlowRuleOperations operations = createMock(FlowRuleOperations.class);
-
-        processor.applyFlowRules(operations);
-        replay(processor);
-
-        Installing sut = new Installing(processor, pending, operations);
-
-        Optional<IntentProcessPhase> executed = sut.execute();
-        verify(processor);
-        assertThat(executed.get(), is(instanceOf(Installed.class)));
-    }
-
-    /**
-     * Test a next phase when IntentInstallationException occurs.
-     */
-    @Test
-    public void testWhenIntentInstallationExceptionOccurs() {
-        IntentData pending = new IntentData(input, INSTALL_REQ, version);
-        pending.setInstallables(Arrays.asList(compiled));
-
-        FlowRuleOperations operations = createMock(FlowRuleOperations.class);
-
-        processor.applyFlowRules(operations);
-        expectLastCall().andThrow(new IntentInstallationException());
-        replay(processor);
-
-        Installing sut = new Installing(processor, pending, operations);
-
-        Optional<IntentProcessPhase> executed = sut.execute();
-        verify(processor);
-        assertThat(executed.get(), is(instanceOf(InstallingFailed.class)));
-    }
-}
diff --git a/core/net/src/test/java/org/onosproject/net/intent/impl/phase/InstallCoordinatingTest.java b/core/net/src/test/java/org/onosproject/net/intent/impl/phase/ReplacingTest.java
similarity index 87%
rename from core/net/src/test/java/org/onosproject/net/intent/impl/phase/InstallCoordinatingTest.java
rename to core/net/src/test/java/org/onosproject/net/intent/impl/phase/ReplacingTest.java
index 1938425..e646a3f 100644
--- a/core/net/src/test/java/org/onosproject/net/intent/impl/phase/InstallCoordinatingTest.java
+++ b/core/net/src/test/java/org/onosproject/net/intent/impl/phase/ReplacingTest.java
@@ -28,7 +28,6 @@
 import org.onosproject.net.Path;
 import org.onosproject.net.flow.DefaultTrafficSelector;
 import org.onosproject.net.flow.DefaultTrafficTreatment;
-import org.onosproject.net.flow.FlowRuleOperations;
 import org.onosproject.net.flow.TrafficSelector;
 import org.onosproject.net.flow.TrafficTreatment;
 import org.onosproject.net.intent.Intent;
@@ -46,7 +45,7 @@
 import java.util.Optional;
 
 import static org.easymock.EasyMock.createMock;
-import static org.easymock.EasyMock.expect;
+import static org.easymock.EasyMock.expectLastCall;
 import static org.easymock.EasyMock.replay;
 import static org.easymock.EasyMock.verify;
 import static org.hamcrest.Matchers.instanceOf;
@@ -55,12 +54,13 @@
 import static org.onosproject.net.DeviceId.deviceId;
 import static org.onosproject.net.Link.Type.DIRECT;
 import static org.onosproject.net.PortNumber.portNumber;
+import static org.onosproject.net.intent.IntentState.INSTALLED;
 import static org.onosproject.net.intent.IntentState.INSTALL_REQ;
 
 /**
  * Unit tests for InstallingCoordinating phase.
  */
-public class InstallCoordinatingTest {
+public class ReplacingTest {
 
     private final ApplicationId appId = new TestApplicationId("test");
     private final ProviderId pid = new ProviderId("of", "test");
@@ -120,12 +120,13 @@
         IntentData pending = new IntentData(input, INSTALL_REQ, version);
         pending.setInstallables(Arrays.asList(compiled));
 
-        FlowRuleOperations operations = createMock(FlowRuleOperations.class);
+        IntentData current = new IntentData(input, INSTALLED, version);
+        current.setInstallables(Arrays.asList(compiled));
 
-        expect(processor.coordinate(null, pending)).andReturn(operations);
+        processor.uninstall(current);
         replay(processor);
 
-        InstallCoordinating sut = new InstallCoordinating(processor, pending, null);
+        Replacing sut = new Replacing(processor, pending, current);
 
         Optional<IntentProcessPhase> executed = sut.execute();
 
@@ -141,14 +142,17 @@
         IntentData pending = new IntentData(input, INSTALL_REQ, version);
         pending.setInstallables(Arrays.asList(compiled));
 
-        expect(processor.coordinate(null, pending)).andThrow(new IntentInstallationException());
+        IntentData current = new IntentData(input, INSTALLED, version);
+
+        processor.uninstall(current);
+        expectLastCall().andThrow(new IntentInstallationException());
         replay(processor);
 
-        InstallCoordinating sut = new InstallCoordinating(processor, pending, null);
+        Replacing sut = new Replacing(processor, pending, current);
 
         Optional<IntentProcessPhase> executed = sut.execute();
 
         verify(processor);
-        assertThat(executed.get(), is(instanceOf(InstallingFailed.class)));
+        assertThat(executed.get(), is(instanceOf(ReplaceFailed.class)));
     }
 }
diff --git a/core/net/src/test/java/org/onosproject/net/intent/impl/phase/WithdrawCoordinatingTest.java b/core/net/src/test/java/org/onosproject/net/intent/impl/phase/WithdrawCoordinatingTest.java
deleted file mode 100644
index 5d40516..0000000
--- a/core/net/src/test/java/org/onosproject/net/intent/impl/phase/WithdrawCoordinatingTest.java
+++ /dev/null
@@ -1,155 +0,0 @@
-/*
- * Copyright 2015 Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onosproject.net.intent.impl.phase;
-
-import org.junit.After;
-import org.junit.Before;
-import org.junit.Test;
-import org.onosproject.TestApplicationId;
-import org.onosproject.core.ApplicationId;
-import org.onosproject.core.IdGenerator;
-import org.onosproject.net.ConnectPoint;
-import org.onosproject.net.DefaultLink;
-import org.onosproject.net.DefaultPath;
-import org.onosproject.net.Link;
-import org.onosproject.net.Path;
-import org.onosproject.net.flow.DefaultTrafficSelector;
-import org.onosproject.net.flow.DefaultTrafficTreatment;
-import org.onosproject.net.flow.FlowRuleOperations;
-import org.onosproject.net.flow.TrafficSelector;
-import org.onosproject.net.flow.TrafficTreatment;
-import org.onosproject.net.intent.Intent;
-import org.onosproject.net.intent.IntentData;
-import org.onosproject.net.intent.MockIdGenerator;
-import org.onosproject.net.intent.PathIntent;
-import org.onosproject.net.intent.PointToPointIntent;
-import org.onosproject.net.intent.impl.IntentProcessor;
-import org.onosproject.net.intent.impl.IntentRemovalException;
-import org.onosproject.net.provider.ProviderId;
-import org.onosproject.store.Timestamp;
-
-import java.util.Arrays;
-import java.util.List;
-import java.util.Optional;
-
-import static org.easymock.EasyMock.createMock;
-import static org.easymock.EasyMock.expect;
-import static org.easymock.EasyMock.replay;
-import static org.easymock.EasyMock.verify;
-import static org.hamcrest.Matchers.instanceOf;
-import static org.hamcrest.Matchers.is;
-import static org.junit.Assert.assertThat;
-import static org.onosproject.net.DeviceId.deviceId;
-import static org.onosproject.net.Link.Type.DIRECT;
-import static org.onosproject.net.PortNumber.portNumber;
-import static org.onosproject.net.intent.IntentState.INSTALLED;
-import static org.onosproject.net.intent.IntentState.WITHDRAW_REQ;
-
-/**
- * Unit tests for WithdrawCoordinating phase.
- */
-public class WithdrawCoordinatingTest {
-
-    private final ApplicationId appId = new TestApplicationId("test");
-    private final ProviderId pid = new ProviderId("of", "test");
-    private final TrafficSelector selector = DefaultTrafficSelector.emptySelector();
-    private final TrafficTreatment treatment = DefaultTrafficTreatment.emptyTreatment();
-    private final ConnectPoint cp1 = new ConnectPoint(deviceId("1"), portNumber(1));
-    private final ConnectPoint cp2 = new ConnectPoint(deviceId("1"), portNumber(2));
-    private final ConnectPoint cp3 = new ConnectPoint(deviceId("2"), portNumber(1));
-    private final ConnectPoint cp4 = new ConnectPoint(deviceId("2"), portNumber(2));
-
-    private final List<Link> links = Arrays.asList(new DefaultLink(pid, cp2, cp4, DIRECT));
-    private final Path path = new DefaultPath(pid, links, 10);
-
-    private PointToPointIntent input;
-    private PathIntent compiled;
-
-    private IdGenerator idGenerator;
-    private IntentProcessor processor;
-    private Timestamp version;
-
-    @Before
-    public void setUp() {
-        processor = createMock(IntentProcessor.class);
-        version = createMock(Timestamp.class);
-
-        idGenerator = new MockIdGenerator();
-
-        Intent.bindIdGenerator(idGenerator);
-
-        // Intent creation should be placed after binding an ID generator
-        input = PointToPointIntent.builder()
-                .appId(appId)
-                .selector(selector)
-                .treatment(treatment)
-                .ingressPoint(cp1)
-                .egressPoint(cp3)
-                .build();
-        compiled = PathIntent.builder()
-                .appId(appId)
-                .selector(selector)
-                .treatment(treatment)
-                .path(path)
-                .build();
-    }
-
-
-    @After
-    public void tearDown() {
-        Intent.unbindIdGenerator(idGenerator);
-    }
-
-    /**
-     * Tests a next phase when no exception occurs.
-     */
-    @Test
-    public void testMoveToNextPhaseWithoutError() {
-        IntentData pending = new IntentData(input, WITHDRAW_REQ, version);
-        IntentData current = new IntentData(input, INSTALLED, version);
-        current.setInstallables(Arrays.asList(compiled));
-
-        FlowRuleOperations operations = createMock(FlowRuleOperations.class);
-        expect(processor.uninstallCoordinate(current, pending)).andReturn(operations);
-        replay(processor);
-
-        WithdrawCoordinating sut = new WithdrawCoordinating(processor, pending, current);
-
-        Optional<IntentProcessPhase> executed = sut.execute();
-        verify(processor);
-        assertThat(executed.get(), is(instanceOf(Withdrawing.class)));
-    }
-
-    /**
-     * Tests a next phase when IntentRemovalExceptionOccurs.
-     */
-    @Test
-    public void testWhenIntentRemovalExceptionOccurs() {
-        IntentData pending = new IntentData(input, WITHDRAW_REQ, version);
-        IntentData current = new IntentData(input, INSTALLED, version);
-        current.setInstallables(Arrays.asList(compiled));
-
-        expect(processor.uninstallCoordinate(current, pending)).andThrow(new IntentRemovalException());
-        replay(processor);
-
-        WithdrawCoordinating sut = new WithdrawCoordinating(processor, pending, current);
-
-        Optional<IntentProcessPhase> executed = sut.execute();
-        verify(processor);
-        assertThat(executed.get(), is(instanceOf(WithdrawingFailed.class)));
-    }
-
-}
diff --git a/core/net/src/test/java/org/onosproject/net/intent/impl/phase/WithdrawingTest.java b/core/net/src/test/java/org/onosproject/net/intent/impl/phase/WithdrawingTest.java
deleted file mode 100644
index 6f7f267..0000000
--- a/core/net/src/test/java/org/onosproject/net/intent/impl/phase/WithdrawingTest.java
+++ /dev/null
@@ -1,133 +0,0 @@
-/*
- * Copyright 2015 Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.onosproject.net.intent.impl.phase;
-
-import org.junit.After;
-import org.junit.Before;
-import org.junit.Test;
-import org.onosproject.TestApplicationId;
-import org.onosproject.core.ApplicationId;
-import org.onosproject.core.IdGenerator;
-import org.onosproject.net.ConnectPoint;
-import org.onosproject.net.DefaultLink;
-import org.onosproject.net.DefaultPath;
-import org.onosproject.net.Link;
-import org.onosproject.net.Path;
-import org.onosproject.net.flow.DefaultTrafficSelector;
-import org.onosproject.net.flow.DefaultTrafficTreatment;
-import org.onosproject.net.flow.FlowRuleOperations;
-import org.onosproject.net.flow.TrafficSelector;
-import org.onosproject.net.flow.TrafficTreatment;
-import org.onosproject.net.intent.Intent;
-import org.onosproject.net.intent.IntentData;
-import org.onosproject.net.intent.MockIdGenerator;
-import org.onosproject.net.intent.PathIntent;
-import org.onosproject.net.intent.PointToPointIntent;
-import org.onosproject.net.intent.impl.IntentProcessor;
-import org.onosproject.net.provider.ProviderId;
-import org.onosproject.store.Timestamp;
-
-import java.util.Arrays;
-import java.util.List;
-import java.util.Optional;
-
-import static org.easymock.EasyMock.createMock;
-import static org.easymock.EasyMock.replay;
-import static org.easymock.EasyMock.verify;
-import static org.hamcrest.Matchers.instanceOf;
-import static org.hamcrest.Matchers.is;
-import static org.junit.Assert.assertThat;
-import static org.onosproject.net.DeviceId.deviceId;
-import static org.onosproject.net.Link.Type.DIRECT;
-import static org.onosproject.net.PortNumber.portNumber;
-import static org.onosproject.net.intent.IntentState.INSTALLED;
-import static org.onosproject.net.intent.IntentState.WITHDRAW_REQ;
-
-/**
- * Unit tests for Withdrawing phase.
- */
-public class WithdrawingTest {
-
-    private final ApplicationId appId = new TestApplicationId("test");
-    private final ProviderId pid = new ProviderId("of", "test");
-    private final TrafficSelector selector = DefaultTrafficSelector.emptySelector();
-    private final TrafficTreatment treatment = DefaultTrafficTreatment.emptyTreatment();
-    private final ConnectPoint cp1 = new ConnectPoint(deviceId("1"), portNumber(1));
-    private final ConnectPoint cp2 = new ConnectPoint(deviceId("1"), portNumber(2));
-    private final ConnectPoint cp3 = new ConnectPoint(deviceId("2"), portNumber(1));
-    private final ConnectPoint cp4 = new ConnectPoint(deviceId("2"), portNumber(2));
-
-    private final List<Link> links = Arrays.asList(new DefaultLink(pid, cp2, cp4, DIRECT));
-    private final Path path = new DefaultPath(pid, links, 10);
-
-    private PointToPointIntent input;
-    private PathIntent compiled;
-
-    private IdGenerator idGenerator;
-    private IntentProcessor processor;
-    private Timestamp version;
-
-    @Before
-    public void setUp() {
-        processor = createMock(IntentProcessor.class);
-        version = createMock(Timestamp.class);
-
-        idGenerator = new MockIdGenerator();
-
-        Intent.bindIdGenerator(idGenerator);
-
-        // Intent creation should be placed after binding an ID generator
-        input = PointToPointIntent.builder()
-                .appId(appId)
-                .selector(selector)
-                .treatment(treatment)
-                .ingressPoint(cp1)
-                .egressPoint(cp3)
-                .build();
-        compiled = PathIntent.builder()
-                .appId(appId)
-                .selector(selector)
-                .treatment(treatment)
-                .path(path)
-                .build();
-    }
-
-
-    @After
-    public void tearDown() {
-        Intent.unbindIdGenerator(idGenerator);
-    }
-
-    /**
-     * Tests a next phase when no exception occurs.
-     */
-    @Test
-    public void testMoveToNextPhaseWithoutError() {
-        IntentData pending = new IntentData(input, WITHDRAW_REQ, version);
-        IntentData current = new IntentData(input, INSTALLED, version);
-        current.setInstallables(Arrays.asList(compiled));
-
-        FlowRuleOperations operations = createMock(FlowRuleOperations.class);
-        processor.applyFlowRules(operations);
-        replay(processor);
-
-        Withdrawing sut = new Withdrawing(processor, pending, operations);
-
-        Optional<IntentProcessPhase> executed = sut.execute();
-        verify(processor);
-        assertThat(executed.get(), is(instanceOf(Withdrawn.class)));
-    }
-}