FRM performance refactoring:

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

diff --git a/opendaylight/md-sal/forwardingrules-manager/src/main/java/org/opendaylight/controller/frm/impl/MeterForwarder.java b/opendaylight/md-sal/forwardingrules-manager/src/main/java/org/opendaylight/controller/frm/impl/MeterForwarder.java
new file mode 100644 (file)
index 0000000..9511fb8
--- /dev/null
+++ b/opendaylight/md-sal/forwardingrules-manager/src/main/java/org/opendaylight/controller/frm/impl/MeterForwarder.java
@@ -0,0 +1,114 @@
+/**
+ * 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.impl;
+
+import com.google.common.base.Preconditions;
+import org.opendaylight.controller.frm.ForwardingRulesManager;
+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.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.FlowCapableNode;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.meters.Meter;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRef;
+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.AddMeterInputBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.service.rev130918.RemoveMeterInputBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.service.rev130918.UpdateMeterInputBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.service.rev130918.meter.update.OriginalMeterBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.service.rev130918.meter.update.UpdatedMeterBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.types.rev130918.MeterRef;
+import org.opendaylight.yangtools.concepts.ListenerRegistration;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * MeterForwarder
+ * It implements {@link org.opendaylight.controller.md.sal.binding.api.DataChangeListener}}
+ * for WildCardedPath to {@link Meter} and ForwardingRulesCommiter interface for methods:
+ *  add, update and remove {@link Meter} processing for
+ *  {@link org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent}.
+ *
+ * @author <a href="mailto:vdemcak@cisco.com">Vaclav Demcak</a>
+ *
+ */
+public class MeterForwarder extends AbstractListeningCommiter<Meter> {
+
+    private static final Logger LOG = LoggerFactory.getLogger(MeterForwarder.class);
+
+    private ListenerRegistration<DataChangeListener> listenerRegistration;
+
+    public MeterForwarder (final ForwardingRulesManager manager, final DataBroker db) {
+        super(manager, Meter.class);
+        Preconditions.checkNotNull(db, "DataBroker can not be null!");
+        this.listenerRegistration = db.registerDataChangeListener(LogicalDatastoreType.CONFIGURATION,
+                getWildCardPath(), MeterForwarder.this, DataChangeScope.BASE);
+    }
+
+    @Override
+    public void close() {
+        if (listenerRegistration != null) {
+            try {
+                listenerRegistration.close();
+            } catch (Exception e) {
+                LOG.error("Error by stop FRM MeterChangeListener.", e);
+            }
+            listenerRegistration = null;
+        }
+    }
+
+    @Override
+    protected InstanceIdentifier<Meter> getWildCardPath() {
+        return InstanceIdentifier.create(Nodes.class).child(Node.class)
+                .augmentation(FlowCapableNode.class).child(Meter.class);
+    }
+
+    @Override
+    public void remove(final InstanceIdentifier<Meter> identifier, final Meter removeDataObj,
+                       final InstanceIdentifier<FlowCapableNode> nodeIdent) {
+
+        final RemoveMeterInputBuilder builder = new RemoveMeterInputBuilder(removeDataObj);
+
+        builder.setNode(new NodeRef(nodeIdent));
+        builder.setMeterRef(new MeterRef(identifier));
+        builder.setTransactionUri(new Uri(provider.getNewTransactionId()));
+        this.provider.getSalMeterService().removeMeter(builder.build());
+    }
+
+    @Override
+    public void update(final InstanceIdentifier<Meter> identifier,
+                       final Meter original, final Meter update,
+                       final InstanceIdentifier<FlowCapableNode> nodeIdent) {
+
+        final UpdateMeterInputBuilder builder = new UpdateMeterInputBuilder();
+
+        builder.setNode(new NodeRef(nodeIdent));
+        builder.setMeterRef(new MeterRef(identifier));
+        builder.setTransactionUri(new Uri(provider.getNewTransactionId()));
+        builder.setUpdatedMeter((new UpdatedMeterBuilder(update)).build());
+        builder.setOriginalMeter((new OriginalMeterBuilder(original)).build());
+
+        this.provider.getSalMeterService().updateMeter(builder.build());
+    }
+
+    @Override
+    public void add(final InstanceIdentifier<Meter> identifier, final Meter addDataObj,
+                    final InstanceIdentifier<FlowCapableNode> nodeIdent) {
+
+        final AddMeterInputBuilder builder = new AddMeterInputBuilder(addDataObj);
+
+        builder.setNode(new NodeRef(nodeIdent));
+        builder.setMeterRef(new MeterRef(identifier));
+        builder.setTransactionUri(new Uri(provider.getNewTransactionId()));
+        this.provider.getSalMeterService().addMeter(builder.build());
+    }
+}
+