added FlowObjectiveService to act as an objective manager between applications and drivers

Change-Id: I4dc44db8bafae8a55b7663895c87b1b08645637f
diff --git a/drivers/pom.xml b/drivers/pom.xml
index a4db521..8538f4a 100644
--- a/drivers/pom.xml
+++ b/drivers/pom.xml
@@ -49,12 +49,21 @@
             <scope>test</scope>
         </dependency>
 
+        <dependency>
+            <groupId>org.apache.felix</groupId>
+            <artifactId>org.apache.felix.scr.annotations</artifactId>
+        </dependency>
+
     </dependencies>
 
     <build>
         <plugins>
             <plugin>
                 <groupId>org.apache.felix</groupId>
+                <artifactId>maven-scr-plugin</artifactId>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.felix</groupId>
                 <artifactId>maven-bundle-plugin</artifactId>
             </plugin>
 
diff --git a/drivers/src/main/java/org/onosproject/driver/pipeline/DefaultDrivers.java b/drivers/src/main/java/org/onosproject/driver/pipeline/DefaultDrivers.java
new file mode 100644
index 0000000..e42e346
--- /dev/null
+++ b/drivers/src/main/java/org/onosproject/driver/pipeline/DefaultDrivers.java
@@ -0,0 +1,67 @@
+/*
+ * 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.driver.pipeline;
+
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.onosproject.net.driver.DriverAdminService;
+import org.onosproject.net.driver.DriverProvider;
+import org.onosproject.net.driver.XmlDriverLoader;
+import org.apache.felix.scr.annotations.Component;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+
+/**
+ * Bootstrap for built in drivers.
+ */
+@Component(immediate = true)
+public class DefaultDrivers {
+
+    private final Logger log = LoggerFactory.getLogger(getClass());
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected DriverAdminService driverService;
+
+    private DriverProvider provider;
+
+    @Activate
+    protected void activate() {
+        XmlDriverLoader xmlDriverLoader =
+                new XmlDriverLoader(getClass().getClassLoader());
+        try {
+            provider = xmlDriverLoader.loadDrivers(
+                    getClass().getResourceAsStream("/default.xml"));
+            driverService.registerProvider(
+                    provider);
+        } catch (IOException e) {
+            log.warn("Unable to load drivers");
+        }
+
+        log.info("Started");
+    }
+
+    @Deactivate
+    protected void deactivate() {
+        driverService.unregisterProvider(provider);
+        log.info("Stopped");
+    }
+
+
+}
diff --git a/drivers/src/main/java/org/onosproject/driver/pipeline/DefaultSingleTablePipeline.java b/drivers/src/main/java/org/onosproject/driver/pipeline/DefaultSingleTablePipeline.java
index 8516697..48114ab 100644
--- a/drivers/src/main/java/org/onosproject/driver/pipeline/DefaultSingleTablePipeline.java
+++ b/drivers/src/main/java/org/onosproject/driver/pipeline/DefaultSingleTablePipeline.java
@@ -20,6 +20,7 @@
 import org.onosproject.core.DefaultGroupId;
 import org.onosproject.net.DeviceId;
 import org.onosproject.net.behaviour.Pipeliner;
+import org.onosproject.net.driver.DriverData;
 import org.onosproject.net.flow.DefaultFlowRule;
 import org.onosproject.net.flow.FlowRule;
 import org.onosproject.net.flow.FlowRuleOperations;
@@ -28,6 +29,7 @@
 import org.onosproject.net.flow.TrafficSelector;
 import org.onosproject.net.flowobjective.FilteringObjective;
 import org.onosproject.net.flowobjective.ForwardingObjective;
+import org.onosproject.net.flowobjective.NextObjective;
 import org.slf4j.Logger;
 
 import java.util.Collection;
@@ -106,4 +108,14 @@
         }));
         return future;
     }
+
+    @Override
+    public Future<Boolean> next(Collection<NextObjective> nextObjectives) {
+        throw new UnsupportedOperationException("Single table does not next hop.");
+    }
+
+    @Override
+    public void setData(DriverData data) {
+
+    }
 }
diff --git a/drivers/src/main/resources/default.xml b/drivers/src/main/resources/default.xml
new file mode 100644
index 0000000..6626412
--- /dev/null
+++ b/drivers/src/main/resources/default.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ 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.
+  -->
+<drivers>
+    <driver name="default" manufacturer="ON.Lab" hwVersion="0.0.1" swVersion="0.0.1">
+        <behaviour api="org.onosproject.net.behaviour.Pipeliner"
+                   impl="org.onosproject.driver.pipeline.DefaultSingleTablePipeline"/>
+    </driver>
+</drivers>
\ No newline at end of file