Bug 933: Changed Topology Compatibility to use DataChangeEvent

[controller.git] / opendaylight / md-sal / compatibility / sal-compatibility / src / main / java / org / opendaylight / controller / sal / compatibility / topology / TopologyCommitHandler.java

diff --git a/opendaylight/md-sal/compatibility/sal-compatibility/src/main/java/org/opendaylight/controller/sal/compatibility/topology/TopologyCommitHandler.java b/opendaylight/md-sal/compatibility/sal-compatibility/src/main/java/org/opendaylight/controller/sal/compatibility/topology/TopologyCommitHandler.java
new file mode 100644 (file)
index 0000000..a35c3ed
--- /dev/null
+++ b/opendaylight/md-sal/compatibility/sal-compatibility/src/main/java/org/opendaylight/controller/sal/compatibility/topology/TopologyCommitHandler.java
@@ -0,0 +1,93 @@
+/*
+ * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.controller.sal.compatibility.topology;
+
+import static org.opendaylight.controller.sal.compatibility.topology.TopologyMapping.toAdEdge;
+import static org.opendaylight.controller.sal.compatibility.topology.TopologyMapping.toTopoEdgeUpdate;
+
+import java.util.Map.Entry;
+import java.util.concurrent.CopyOnWriteArrayList;
+
+import org.opendaylight.controller.md.sal.binding.util.TypeSafeDataReader;
+import org.opendaylight.controller.md.sal.common.api.data.DataChangeEvent;
+import org.opendaylight.controller.sal.binding.api.data.DataChangeListener;
+import org.opendaylight.controller.sal.binding.api.data.DataProviderService;
+import org.opendaylight.controller.sal.core.UpdateType;
+import org.opendaylight.controller.sal.topology.IPluginOutTopologyService;
+import org.opendaylight.controller.sal.topology.TopoEdgeUpdate;
+import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
+import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.TopologyId;
+import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
+import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
+import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Link;
+import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class TopologyCommitHandler implements DataChangeListener {
+    private static final Logger LOG = LoggerFactory.getLogger(TopologyCommitHandler.class);
+
+    private IPluginOutTopologyService topologyPublisher;
+
+    private final DataProviderService dataService;
+
+    public TopologyCommitHandler(final DataProviderService dataService, final IPluginOutTopologyService topologyPub) {
+        this.topologyPublisher = topologyPub;
+        this.dataService = dataService;
+    }
+
+    @Override
+    public void onDataChanged(final DataChangeEvent<InstanceIdentifier<?>, DataObject> modification) {
+        CopyOnWriteArrayList<TopoEdgeUpdate> msg = new CopyOnWriteArrayList<TopoEdgeUpdate>();
+        try {
+            TypeSafeDataReader reader = TypeSafeDataReader.forReader(dataService);
+            InstanceIdentifier<Topology> topologyPath = InstanceIdentifier.builder(NetworkTopology.class)
+                    .child(Topology.class, new TopologyKey(new TopologyId("flow:1"))).build();
+            Topology topology = reader.readOperationalData(topologyPath);
+
+            for (Entry<InstanceIdentifier<? extends DataObject>, DataObject> entry : modification
+                    .getCreatedOperationalData().entrySet()) {
+                if (entry.getValue() instanceof Link
+                        && modification.getCreatedOperationalData().containsKey(entry.getKey())) {
+                    msg.add(toTopoEdgeUpdate(toAdEdge((Link) entry.getValue(), topology), UpdateType.ADDED, reader));
+                }
+            }
+
+            for (Entry<InstanceIdentifier<? extends DataObject>, DataObject> entry : modification
+                    .getUpdatedOperationalData().entrySet()) {
+                if (entry.getValue() instanceof Link) {
+                    msg.add(toTopoEdgeUpdate(toAdEdge((Link) entry.getValue(), topology), UpdateType.CHANGED, reader));
+                }
+            }
+            for (InstanceIdentifier<? extends DataObject> path : modification.getRemovedOperationalData()) {
+                if (path.getTargetType() == Link.class) {
+                    Link link = (Link) modification.getOriginalOperationalData().get(path);
+                    msg.add(toTopoEdgeUpdate(toAdEdge(link, topology), UpdateType.CHANGED, reader));
+                }
+
+            }
+
+            if (topologyPublisher != null && msg != null && !msg.isEmpty()) {
+                topologyPublisher.edgeUpdate(msg);
+            }
+
+        } catch (Exception e) {
+            LOG.error("Exception caught", e);
+        }
+    }
+
+    protected IPluginOutTopologyService getTopologyPublisher() {
+        return topologyPublisher;
+    }
+
+    protected void setTopologyPublisher(final IPluginOutTopologyService topologyPublisher) {
+        this.topologyPublisher = topologyPublisher;
+    }
+
+}