applications/forwardingrules-sync/src/main/java/org/opendaylight/openflowplugin/applications/frsync/impl/SyncReactorFutureDecorator.java

   1 /**
   2  * Copyright (c) 2016 Cisco Systems, Inc. and others. All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.openflowplugin.applications.frsync.impl;
  10
  11 import com.google.common.util.concurrent.ListenableFuture;
  12 import com.google.common.util.concurrent.ListeningExecutorService;
  13 import java.util.concurrent.TimeUnit;
  14 import java.util.concurrent.TimeoutException;
  15 import org.opendaylight.openflowplugin.applications.frsync.SyncReactor;
  16 import org.opendaylight.openflowplugin.applications.frsync.util.PathUtil;
  17 import org.opendaylight.openflowplugin.applications.frsync.util.SyncupEntry;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
  20 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  21 import org.slf4j.Logger;
  22 import org.slf4j.LoggerFactory;
  23
  24 /**
  25  * Decorator for running delegate syncup in Future.
  26  */
  27 public class SyncReactorFutureDecorator implements SyncReactor {
  28
  29     private static final Logger LOG = LoggerFactory.getLogger(SyncReactorFutureDecorator.class);
  30     public static final String FRM_RPC_CLIENT_PREFIX = "FRM-RPC-client-";
  31     private final SyncReactor delegate;
  32     private final ListeningExecutorService executorService;
  33
  34     public SyncReactorFutureDecorator(SyncReactor delegate, ListeningExecutorService executorService) {
  35         this.delegate = delegate;
  36         this.executorService = executorService;
  37     }
  38
  39     public ListenableFuture<Boolean> syncup(final InstanceIdentifier<FlowCapableNode> flowcapableNodePath,
  40                                             final SyncupEntry syncupEntry) throws InterruptedException {
  41         final NodeId nodeId = PathUtil.digNodeId(flowcapableNodePath);
  42         LOG.trace("syncup future decorator: {}", nodeId.getValue());
  43
  44         return executorService.submit(() -> {
  45             final String oldThreadName = updateThreadName(nodeId);
  46
  47             try {
  48                 final Boolean ret = doSyncupInFuture(flowcapableNodePath, syncupEntry)
  49                         .get(10000, TimeUnit.MILLISECONDS);
  50                 LOG.trace("syncup return in future decorator: {} [{}]", nodeId.getValue(), ret);
  51                 return true;
  52             } catch (TimeoutException e) {
  53                 LOG.error("doSyncupInFuture timeout occured {}", nodeId.getValue(), e);
  54                 return false;
  55             } finally {
  56                 updateThreadName(oldThreadName);
  57             }
  58         });
  59     }
  60
  61     protected ListenableFuture<Boolean> doSyncupInFuture(final InstanceIdentifier<FlowCapableNode> flowcapableNodePath,
  62                                                          final SyncupEntry syncupEntry) throws InterruptedException {
  63         final NodeId nodeId = PathUtil.digNodeId(flowcapableNodePath);
  64         LOG.trace("doSyncupInFuture future decorator: {}", nodeId.getValue());
  65
  66         return delegate.syncup(flowcapableNodePath, syncupEntry);
  67     }
  68
  69     private String updateThreadName(NodeId nodeId) {
  70         final Thread currentThread = Thread.currentThread();
  71         final String oldName = currentThread.getName();
  72         try {
  73             if (oldName.startsWith(SyncReactorFutureDecorator.FRM_RPC_CLIENT_PREFIX)) {
  74                 currentThread.setName(oldName + "@" + nodeId.getValue());
  75             } else {
  76                 LOG.warn("try to update foreign thread name {} {}", nodeId, oldName);
  77             }
  78         } catch (Exception e) {
  79             LOG.error("failed updating threadName {}", nodeId, e);
  80         }
  81         return oldName;
  82     }
  83
  84     private void updateThreadName(String name) {
  85         final Thread currentThread = Thread.currentThread();
  86         final String oldName = currentThread.getName();
  87         try {
  88             if (oldName.startsWith(SyncReactorFutureDecorator.FRM_RPC_CLIENT_PREFIX)) {
  89                 currentThread.setName(name);
  90             } else {
  91                 LOG.warn("try to update foreign thread name {} {}", oldName, name);
  92             }
  93         } catch (Exception e) {
  94             LOG.error("failed updating threadName {}", name, e);
  95         }
  96     }
  97 }