/**
* 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.openflowplugin.impl.connection.listener;
+import com.google.common.annotations.VisibleForTesting;
+import com.google.common.base.Preconditions;
+import java.net.InetSocketAddress;
+import java.util.Date;
+import java.util.Objects;
+import java.util.concurrent.Future;
+import java.util.concurrent.ThreadPoolExecutor;
+import java.util.concurrent.TimeUnit;
+import javax.annotation.Nonnull;
import org.opendaylight.openflowplugin.api.openflow.connection.ConnectionContext;
+import org.opendaylight.openflowplugin.api.openflow.device.Xid;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.EchoInputBuilder;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.EchoOutput;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.FeaturesReply;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.system.rev130927.DisconnectEvent;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.system.rev130927.SwitchIdleEvent;
import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.system.rev130927.SystemNotificationsListener;
+import org.opendaylight.yangtools.yang.common.RpcError;
+import org.opendaylight.yangtools.yang.common.RpcResult;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
/**
- *
+ *
*/
public class SystemNotificationsListenerImpl implements SystemNotificationsListener {
-
- private ConnectionContext connectionContext;
+ private static final Logger LOG = LoggerFactory.getLogger(SystemNotificationsListenerImpl.class);
+ private static final Xid ECHO_XID = new Xid(0L);
- /**
- * @param connectionContext
- */
- public SystemNotificationsListenerImpl(ConnectionContext connectionContext) {
- this.connectionContext = connectionContext;
+ private final ConnectionContext connectionContext;
+ @VisibleForTesting
+ static final long MAX_ECHO_REPLY_TIMEOUT = 2000;
+ private final long echoReplyTimeout;
+ private final ThreadPoolExecutor threadPool;
+
+ public SystemNotificationsListenerImpl(@Nonnull final ConnectionContext connectionContext,
+ long echoReplyTimeout,
+ @Nonnull final ThreadPoolExecutor threadPool) {
+ this.threadPool = threadPool;
+ this.connectionContext = Preconditions.checkNotNull(connectionContext);
+ this.echoReplyTimeout = echoReplyTimeout;
}
@Override
- public void onDisconnectEvent(DisconnectEvent notification) {
- // TODO Auto-generated method stub
-
+ public void onDisconnectEvent(final DisconnectEvent notification) {
+ LOG.info("ConnectionEvent: Connection closed by device, Device:{}, NodeId:{}",
+ connectionContext.getConnectionAdapter().getRemoteAddress(), connectionContext.getSafeNodeIdForLOG());
+ connectionContext.onConnectionClosed();
}
@Override
- public void onSwitchIdleEvent(SwitchIdleEvent notification) {
- // TODO Auto-generated method stub
+ public void onSwitchIdleEvent(final SwitchIdleEvent notification) {
+ threadPool.execute(this::executeOnSwitchIdleEvent);
+ }
+
+ private void executeOnSwitchIdleEvent() {
+ boolean shouldBeDisconnected = true;
+
+ final InetSocketAddress remoteAddress = connectionContext.getConnectionAdapter().getRemoteAddress();
+
+ if (ConnectionContext.CONNECTION_STATE.WORKING.equals(connectionContext.getConnectionState())) {
+ FeaturesReply features = connectionContext.getFeatures();
+ LOG.info("Switch Idle state occurred, node={}|auxId={}", remoteAddress, features.getAuxiliaryId());
+ connectionContext.changeStateToTimeouting();
+ EchoInputBuilder builder = new EchoInputBuilder();
+ builder.setVersion(features.getVersion());
+ builder.setXid(ECHO_XID.getValue());
+
+ Future<RpcResult<EchoOutput>> echoReplyFuture = connectionContext.getConnectionAdapter().echo(builder.build());
+ try {
+ RpcResult<EchoOutput> echoReplyValue = echoReplyFuture.get(echoReplyTimeout, TimeUnit.MILLISECONDS);
+ if (echoReplyValue.isSuccessful() &&
+ Objects.equals(echoReplyValue.getResult().getXid(), ECHO_XID.getValue())) {
+ connectionContext.changeStateToWorking();
+ shouldBeDisconnected = false;
+ } else {
+ logErrors(remoteAddress, echoReplyValue);
+ }
+ } catch (Exception e) {
+ if (LOG.isWarnEnabled()) {
+ LOG.warn("Exception while waiting for echoReply from [{}] in TIMEOUTING state: {}", remoteAddress, e.getMessage());
+ }
+
+ if (LOG.isTraceEnabled()) {
+ LOG.trace("Exception while waiting for echoReply from [{}] in TIMEOUTING state: {}", remoteAddress, e);
+ }
+
+ }
+ }
+ if (shouldBeDisconnected) {
+ if (LOG.isInfoEnabled()) {
+ LOG.info("ConnectionEvent:Closing connection as device is idle. Echo sent at {}. Device:{}, NodeId:{}",
+ new Date(System.currentTimeMillis() - echoReplyTimeout), remoteAddress, connectionContext.getSafeNodeIdForLOG());
+ }
+
+ connectionContext.closeConnection(true);
+ }
}
+ private void logErrors(InetSocketAddress remoteAddress, RpcResult<EchoOutput> echoReplyValue) {
+ for (RpcError replyError : echoReplyValue.getErrors()) {
+ Throwable cause = replyError.getCause();
+ if (LOG.isWarnEnabled()) {
+ LOG.warn("Received EchoReply from [{}] in TIMEOUTING state, Error:{}", remoteAddress, cause.getMessage());
+ }
+
+ if (LOG.isTraceEnabled()) {
+ LOG.trace("Received EchoReply from [{}] in TIMEOUTING state, Error:{}", remoteAddress, cause);
+ }
+
+ }
+ }
}
Code Review / openflowplugin.git / blobdiff