Bug 740: Forwardingrules-Manager support for DataChangeListeners

[controller.git] / opendaylight / md-sal / forwardingrules-manager / src / main / java / org / opendaylight / controller / frm / flow / FlowChangeListener.java

diff --git a/opendaylight/md-sal/forwardingrules-manager/src/main/java/org/opendaylight/controller/frm/flow/FlowChangeListener.java b/opendaylight/md-sal/forwardingrules-manager/src/main/java/org/opendaylight/controller/frm/flow/FlowChangeListener.java
new file mode 100644 (file)
index 0000000..df086c7
--- /dev/null
+++ b/opendaylight/md-sal/forwardingrules-manager/src/main/java/org/opendaylight/controller/frm/flow/FlowChangeListener.java
@@ -0,0 +1,120 @@
+/**
+ * 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.frm.flow;
+
+import org.opendaylight.controller.frm.AbstractChangeListener;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Uri;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.Table;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.AddFlowInput;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.AddFlowInputBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.FlowTableRef;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.RemoveFlowInput;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.RemoveFlowInputBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.SalFlowService;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.UpdateFlowInput;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.UpdateFlowInputBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.flow.update.OriginalFlow;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.flow.update.OriginalFlowBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.flow.update.UpdatedFlow;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.flow.update.UpdatedFlowBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.Flow;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.FlowRef;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRef;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
+import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * 
+ * @author <a href="mailto:vdemcak@cisco.com">Vaclav Demcak</a>
+ *
+ */
+public class FlowChangeListener extends AbstractChangeListener {
+
+    private final static Logger LOG = LoggerFactory.getLogger(FlowChangeListener.class);
+
+    private final SalFlowService salFlowService;
+
+    public SalFlowService getSalFlowService() {
+        return this.salFlowService;
+    }
+    
+    public FlowChangeListener(final SalFlowService manager) {
+        this.salFlowService = manager;
+    }
+
+    @Override
+    protected void validate() throws IllegalStateException {
+        FlowTransactionValidator.validate(this);
+    }
+
+    @Override
+    protected void remove(InstanceIdentifier<? extends DataObject> identifier, DataObject removeDataObj) {
+        if ((removeDataObj instanceof Flow)) {
+            
+            final Flow flow = ((Flow) removeDataObj);
+            final InstanceIdentifier<Table> tableInstanceId = identifier.<Table> firstIdentifierOf(Table.class);
+            final InstanceIdentifier<Node> nodeInstanceId = identifier.<Node> firstIdentifierOf(Node.class);
+            final RemoveFlowInputBuilder builder = new RemoveFlowInputBuilder(flow);
+            
+            builder.setFlowRef(new FlowRef(identifier));
+            builder.setNode(new NodeRef(nodeInstanceId));
+            builder.setFlowTable(new FlowTableRef(tableInstanceId));
+            
+            Uri uri = new Uri(this.getTransactionId());
+            builder.setTransactionUri(uri);
+            this.salFlowService.removeFlow((RemoveFlowInput) builder.build());
+            LOG.debug("Transaction {} - Removed Flow has removed flow: {}", new Object[]{uri, removeDataObj});
+        }
+    }
+
+    @Override
+    protected void update(InstanceIdentifier<? extends DataObject> identifier, DataObject original, DataObject update) {
+        if (original instanceof Flow && update instanceof Flow) {
+            
+            final Flow originalFlow = ((Flow) original);
+            final Flow updatedFlow = ((Flow) update);
+            final InstanceIdentifier<Node> nodeInstanceId = identifier.<Node>firstIdentifierOf(Node.class);
+            final UpdateFlowInputBuilder builder = new UpdateFlowInputBuilder();
+            
+            builder.setNode(new NodeRef(nodeInstanceId));
+            builder.setFlowRef(new FlowRef(identifier));
+            
+            Uri uri = new Uri(this.getTransactionId());
+            builder.setTransactionUri(uri);
+            
+            builder.setUpdatedFlow((UpdatedFlow) (new UpdatedFlowBuilder(updatedFlow)).build());
+            builder.setOriginalFlow((OriginalFlow) (new OriginalFlowBuilder(originalFlow)).build());
+            
+            this.salFlowService.updateFlow((UpdateFlowInput) builder.build());
+            LOG.debug("Transaction {} - Update Flow has updated flow {} with {}", new Object[]{uri, original, update});
+      }
+    }
+
+    @Override
+    protected void add(InstanceIdentifier<? extends DataObject> identifier, DataObject addDataObj) {
+        if ((addDataObj instanceof Flow)) {
+            
+            final Flow flow = ((Flow) addDataObj);
+            final InstanceIdentifier<Table> tableInstanceId = identifier.<Table> firstIdentifierOf(Table.class);
+            final InstanceIdentifier<Node> nodeInstanceId = identifier.<Node> firstIdentifierOf(Node.class);
+            final AddFlowInputBuilder builder = new AddFlowInputBuilder(flow);
+            
+            builder.setNode(new NodeRef(nodeInstanceId));
+            builder.setFlowRef(new FlowRef(identifier));
+            builder.setFlowTable(new FlowTableRef(tableInstanceId));
+            
+            Uri uri = new Uri(this.getTransactionId());
+            builder.setTransactionUri(uri);
+            this.salFlowService.addFlow((AddFlowInput) builder.build());
+            LOG.debug("Transaction {} - Add Flow has added flow: {}", new Object[]{uri, addDataObj});
+        }
+    }
+}