Initial work for adding flow-objective backed intents.

Split installation work from IntentManager into IntentInstaller helper class.

Change-Id: If926ce975d005abee4f22f2b05404de328d94203
diff --git a/core/api/src/test/java/org/onosproject/net/intent/FlowObjectiveIntentTest.java b/core/api/src/test/java/org/onosproject/net/intent/FlowObjectiveIntentTest.java
new file mode 100644
index 0000000..ec3e334
--- /dev/null
+++ b/core/api/src/test/java/org/onosproject/net/intent/FlowObjectiveIntentTest.java
@@ -0,0 +1,99 @@
+/*
+ * Copyright 2016 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;
+
+import com.google.common.collect.ImmutableSet;
+import com.google.common.testing.EqualsTester;
+import org.junit.Test;
+import org.onosproject.core.ApplicationId;
+import org.onosproject.core.DefaultApplicationId;
+import org.onosproject.net.NetworkResource;
+import org.onosproject.net.flow.DefaultTrafficSelector;
+import org.onosproject.net.flow.DefaultTrafficTreatment;
+import org.onosproject.net.flow.criteria.Criteria;
+import org.onosproject.net.flowobjective.DefaultFilteringObjective;
+import org.onosproject.net.flowobjective.DefaultForwardingObjective;
+import org.onosproject.net.flowobjective.ForwardingObjective;
+import org.onosproject.net.flowobjective.Objective;
+
+import java.util.Collection;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+import static org.onlab.junit.ImmutableClassChecker.assertThatClassIsImmutable;
+
+/**
+ * Tests of the flow objective intent.
+ */
+public class FlowObjectiveIntentTest extends IntentTest {
+
+    private static final ApplicationId APP_ID = new DefaultApplicationId(1, "foo");
+    private static final Key KEY = Key.of("bar", APP_ID);
+
+    private static final Objective FO1 = DefaultFilteringObjective.builder()
+            .fromApp(APP_ID).addCondition(Criteria.matchEthType(123))
+            .permit().add();
+    private static final Objective FO2 = DefaultForwardingObjective.builder()
+            .fromApp(APP_ID)
+            .withSelector(DefaultTrafficSelector.builder().matchEthType((short) 123).build())
+            .withTreatment(DefaultTrafficTreatment.emptyTreatment())
+            .withFlag(ForwardingObjective.Flag.VERSATILE).add();
+    private static final Collection<Objective> OBJECTIVES = ImmutableSet.of(FO1, FO2);
+    private static final Collection<NetworkResource> RESOURCES = ImmutableSet.of();
+
+    /**
+     * Tests basics of construction and getters.
+     */
+    @Test
+    public void basics() {
+        FlowObjectiveIntent intent =
+                new FlowObjectiveIntent(APP_ID, KEY, OBJECTIVES, RESOURCES);
+        assertEquals("incorrect app id", APP_ID, intent.appId());
+        assertEquals("incorrect key", KEY, intent.key());
+        assertEquals("incorrect objectives", OBJECTIVES, intent.objectives());
+        assertEquals("incorrect resources", RESOURCES, intent.resources());
+        assertTrue("should be installable", intent.isInstallable());
+    }
+
+    /**
+     * Tests equality.
+     */
+    @Test
+    public void equality() {
+        Intent a = createOne();
+        Intent b = createAnother();
+        new EqualsTester().addEqualityGroup(a).addEqualityGroup(b).testEquals();
+    }
+
+    /**
+     * Tests that instance is immutable.
+     */
+    @Test
+    public void testImmutability() {
+        assertThatClassIsImmutable(HostToHostIntent.class);
+    }
+
+    @Override
+    protected Intent createOne() {
+        return new FlowObjectiveIntent(APP_ID, OBJECTIVES, RESOURCES);
+    }
+
+    @Override
+    protected Intent createAnother() {
+        return new FlowObjectiveIntent(APP_ID, OBJECTIVES, RESOURCES);
+    }
+}
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