BUG-2635 Netconf monitoring for md-sal netconf northbound

[controller.git] / opendaylight / netconf / mdsal-netconf-monitoring / src / main / java / org / opendaylight / controller / config / yang / netconf / mdsal / monitoring / MonitoringToMdsalWriter.java

diff --git a/opendaylight/netconf/mdsal-netconf-monitoring/src/main/java/org/opendaylight/controller/config/yang/netconf/mdsal/monitoring/MonitoringToMdsalWriter.java b/opendaylight/netconf/mdsal-netconf-monitoring/src/main/java/org/opendaylight/controller/config/yang/netconf/mdsal/monitoring/MonitoringToMdsalWriter.java
new file mode 100644 (file)
index 0000000..50958e4
--- /dev/null
+++ b/opendaylight/netconf/mdsal-netconf-monitoring/src/main/java/org/opendaylight/controller/config/yang/netconf/mdsal/monitoring/MonitoringToMdsalWriter.java
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2015 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.config.yang.netconf.mdsal.monitoring;
+
+import com.google.common.base.Preconditions;
+import com.google.common.util.concurrent.CheckedFuture;
+import com.google.common.util.concurrent.FutureCallback;
+import com.google.common.util.concurrent.Futures;
+import org.opendaylight.controller.md.sal.binding.api.DataBroker;
+import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
+import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
+import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
+import org.opendaylight.controller.netconf.api.monitoring.NetconfMonitoringService;
+import org.opendaylight.controller.sal.binding.api.BindingAwareBroker;
+import org.opendaylight.controller.sal.binding.api.BindingAwareProvider;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.monitoring.rev101004.NetconfState;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+final class MonitoringToMdsalWriter implements AutoCloseable, NetconfMonitoringService.MonitoringListener, BindingAwareProvider {
+
+    private static final Logger LOG = LoggerFactory.getLogger(MonitoringToMdsalWriter.class);
+
+    private final NetconfMonitoringService serverMonitoringDependency;
+    private DataBroker dataBroker;
+
+    public MonitoringToMdsalWriter(final NetconfMonitoringService serverMonitoringDependency) {
+        this.serverMonitoringDependency = serverMonitoringDependency;
+    }
+
+    @Override
+    public void close() {
+        final WriteTransaction tx = dataBroker.newWriteOnlyTransaction();
+        tx.delete(LogicalDatastoreType.OPERATIONAL, InstanceIdentifier.create(NetconfState.class));
+        final CheckedFuture<Void, TransactionCommitFailedException> submit = tx.submit();
+
+        Futures.addCallback(submit, new FutureCallback<Void>() {
+            @Override
+            public void onSuccess(final Void aVoid) {
+                LOG.debug("Netconf state cleared successfully");
+            }
+
+            @Override
+            public void onFailure(final Throwable throwable) {
+                LOG.warn("Unable to clear netconf state", throwable);
+            }
+        });
+    }
+
+    @Override
+    public void onStateChanged(final NetconfState state) {
+        Preconditions.checkState(dataBroker != null);
+        final WriteTransaction tx = dataBroker.newWriteOnlyTransaction();
+        tx.put(LogicalDatastoreType.OPERATIONAL, InstanceIdentifier.create(NetconfState.class), state);
+        // FIXME first attempt (right after we register to binding broker) always fails
+        // Is it due to the fact that we are writing from the onSessionInitiated callback ?
+        final CheckedFuture<Void, TransactionCommitFailedException> submit = tx.submit();
+
+        Futures.addCallback(submit, new FutureCallback<Void>() {
+            @Override
+            public void onSuccess(final Void aVoid) {
+                LOG.debug("Netconf state updated successfully");
+            }
+
+            @Override
+            public void onFailure(final Throwable throwable) {
+                LOG.warn("Unable to update netconf state", throwable);
+            }
+        });
+    }
+
+    @Override
+    public void onSessionInitiated(final BindingAwareBroker.ProviderContext providerContext) {
+        dataBroker = providerContext.getSALService(DataBroker.class);
+        serverMonitoringDependency.registerListener(this);
+    }
+}