bug 537 - Node Reconciliation

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

diff --git a/opendaylight/md-sal/forwardingrules-manager/src/main/java/org/opendaylight/controller/frm/reconil/FlowNodeReconcilProvider.java b/opendaylight/md-sal/forwardingrules-manager/src/main/java/org/opendaylight/controller/frm/reconil/FlowNodeReconcilProvider.java
new file mode 100644 (file)
index 0000000..ad970d6
--- /dev/null
+++ b/opendaylight/md-sal/forwardingrules-manager/src/main/java/org/opendaylight/controller/frm/reconil/FlowNodeReconcilProvider.java
@@ -0,0 +1,115 @@
+/**
+ * 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.reconil;
+
+import org.opendaylight.controller.md.sal.binding.api.DataBroker;
+import org.opendaylight.controller.md.sal.binding.api.DataChangeListener;
+import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
+import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
+import org.opendaylight.controller.sal.binding.api.RpcConsumerRegistry;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.SalFlowService;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.group.service.rev130918.SalGroupService;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.service.rev130918.SalMeterService;
+import org.opendaylight.yangtools.concepts.ListenerRegistration;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.base.Preconditions;
+
+/**
+ * forwardingrules-manager
+ * org.opendaylight.controller.frm
+ *
+ * FlowNode Reconciliation Provider registers the FlowNodeReconilListener
+ * and it holds all needed services for FlowNodeReconcilListener.
+ *
+ * @author <a href="mailto:vdemcak@cisco.com">Vaclav Demcak</a>
+ *
+ * Created: Jun 13, 2014
+ */
+public class FlowNodeReconcilProvider implements AutoCloseable {
+
+    private static final Logger LOG = LoggerFactory.getLogger(FlowNodeReconcilProvider.class);
+
+    private SalFlowService salFlowService;
+    private SalMeterService salMeterService;
+    private SalGroupService salGroupService;
+    private DataBroker dataService;
+
+    /* DataChangeListener */
+    private DataChangeListener flowNodeReconcilListener;
+    private ListenerRegistration<DataChangeListener> flowNodeReconcilListenerRegistration;
+
+    public void init (final DataBroker dataService) {
+        LOG.info("FRM Flow Node Config Reconcil Provider initialization.");
+
+        this.dataService = Preconditions.checkNotNull(dataService, "DataProviderService can not be null !");
+    }
+
+    public void start( final RpcConsumerRegistry rpcRegistry ) {
+        Preconditions.checkArgument(rpcRegistry != null, "RpcConcumerRegistry can not be null !");
+
+        this.salFlowService = Preconditions.checkNotNull(rpcRegistry.getRpcService(SalFlowService.class),
+                "RPC SalFlowService not found.");
+        this.salMeterService = Preconditions.checkNotNull(rpcRegistry.getRpcService(SalMeterService.class),
+                "RPC SalMeterService not found.");
+        this.salGroupService = Preconditions.checkNotNull(rpcRegistry.getRpcService(SalGroupService.class),
+                "RPC SalGroupService not found.");
+
+        /* Build Path */
+        InstanceIdentifier<FlowCapableNode> flowCapableNodeIdent =
+                InstanceIdentifier.create(Nodes.class).child(Node.class).augmentation(FlowCapableNode.class);
+
+        /* ReconcilNotificationListener registration */
+        this.flowNodeReconcilListener = new FlowNodeReconcilListener(FlowNodeReconcilProvider.this);
+        this.flowNodeReconcilListenerRegistration = this.dataService.registerDataChangeListener(
+                LogicalDatastoreType.OPERATIONAL, flowCapableNodeIdent, flowNodeReconcilListener, DataChangeScope.BASE);
+        LOG.info("FRM Flow Node Config Reconcil Provider started.");
+    }
+
+    @Override
+    public void close() {
+        LOG.info("FRM Flow Node Config Reconcil Provider stopped.");
+        if (flowNodeReconcilListenerRegistration != null) {
+            try {
+                flowNodeReconcilListenerRegistration.close();
+            } catch (Exception e) {
+                String errMsg = "Error by stop FRM Flow Node Config Reconcil Provider.";
+                LOG.error(errMsg, e);
+                throw new IllegalStateException(errMsg, e);
+            } finally {
+                flowNodeReconcilListenerRegistration = null;
+            }
+        }
+    }
+
+    public DataChangeListener getFlowNodeReconcilListener() {
+        return flowNodeReconcilListener;
+    }
+
+    public DataBroker getDataService() {
+        return dataService;
+    }
+
+    public SalFlowService getSalFlowService() {
+        return salFlowService;
+    }
+
+    public SalMeterService getSalMeterService() {
+        return salMeterService;
+    }
+
+    public SalGroupService getSalGroupService() {
+        return salGroupService;
+    }
+}