Integration of fcaps applications

[vpnservice.git] / fcapsapplication / fcapsapplication-impl / src / main / java / org / opendaylight / vpnservice / fcapsapp / performancecounter / NodeConnectorEventListener.java

diff --git a/fcapsapplication/fcapsapplication-impl/src/main/java/org/opendaylight/vpnservice/fcapsapp/performancecounter/NodeConnectorEventListener.java b/fcapsapplication/fcapsapplication-impl/src/main/java/org/opendaylight/vpnservice/fcapsapp/performancecounter/NodeConnectorEventListener.java
new file mode 100644 (file)
index 0000000..74272e6
--- /dev/null
+++ b/fcapsapplication/fcapsapplication-impl/src/main/java/org/opendaylight/vpnservice/fcapsapp/performancecounter/NodeConnectorEventListener.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2016 Ericsson India Global Services Pvt Ltd. 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.vpnservice.fcapsapp.performancecounter;
+
+import org.opendaylight.controller.md.sal.binding.api.*;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNodeConnector;
+import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import java.util.Collection;
+
+public abstract  class NodeConnectorEventListener <T extends DataObject> implements ClusteredDataTreeChangeListener<T>,AutoCloseable,FlowCapableNodeConnectorCommitter<T> {
+    NodeConnectorEventListener(Class<FlowCapableNodeConnector> flowCapableNodeConnectorClass) {
+    }
+
+    @Override
+    public void onDataTreeChanged(Collection<DataTreeModification<T>> changes) {
+        for (DataTreeModification<T> change : changes) {
+            final InstanceIdentifier<T> key = change.getRootPath().getRootIdentifier();
+            final DataObjectModification<T> mod = change.getRootNode();
+            final InstanceIdentifier<FlowCapableNodeConnector> nodeConnIdent =
+                    key.firstIdentifierOf(FlowCapableNodeConnector.class);
+
+            switch (mod.getModificationType()) {
+                case DELETE:
+                    remove(key, mod.getDataBefore(), nodeConnIdent);
+                    break;
+                case SUBTREE_MODIFIED:
+                    update(key, mod.getDataBefore(), mod.getDataAfter(), nodeConnIdent);
+                    break;
+                case WRITE:
+                    if (mod.getDataBefore() == null) {
+                        add(key, mod.getDataAfter(), nodeConnIdent);
+                    } else {
+                        update(key, mod.getDataBefore(), mod.getDataAfter(), nodeConnIdent);
+                    }
+                    break;
+
+
+                default:
+                    throw new IllegalArgumentException("Unhandled modification type " + mod.getModificationType());
+            }
+        }
+    }
+
+    @Override
+    public void close() throws Exception {
+    }
+}