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.Callable;
  14 import java.util.concurrent.TimeUnit;
  15 import java.util.concurrent.TimeoutException;
  16 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  17 import org.opendaylight.openflowplugin.applications.frsync.SyncReactor;
  18 import org.opendaylight.openflowplugin.applications.frsync.util.PathUtil;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
  21 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  22 import org.slf4j.Logger;
  23 import org.slf4j.LoggerFactory;
  24
  25 /**
  26  * Decorator for running delegate syncup in Future.
  27  */
  28 public class SyncReactorFutureDecorator implements SyncReactor {
  29
  30     private static final Logger LOG = LoggerFactory.getLogger(SyncReactorFutureDecorator.class);
  31     public static final String FRM_RPC_CLIENT_PREFIX = "FRM-RPC-client-";
  32     private final SyncReactor delegate;
  33     private final ListeningExecutorService executorService;
  34
  35     public SyncReactorFutureDecorator(SyncReactor delegate, ListeningExecutorService executorService) {
  36         this.delegate = delegate;
  37         this.executorService = executorService;
  38     }
  39
  40     public ListenableFuture<Boolean> syncup(final InstanceIdentifier<FlowCapableNode> flowcapableNodePath,
  41                                             final FlowCapableNode configTree, final FlowCapableNode operationalTree,
  42                                             final LogicalDatastoreType dsType) throws InterruptedException {
  43         final NodeId nodeId = PathUtil.digNodeId(flowcapableNodePath);
  44         LOG.trace("syncup future {}", nodeId.getValue());
  45
  46         final ListenableFuture<Boolean> syncup = executorService.submit(new Callable<Boolean>() {
  47             public Boolean call() throws Exception {
  48                 final String oldThreadName = updateThreadName(nodeId);
  49
  50                 try {
  51                     final Boolean ret = doSyncupInFuture(flowcapableNodePath, configTree, operationalTree, dsType)
  52                             .get(10000, TimeUnit.MILLISECONDS);
  53                     LOG.trace("ret {} {}", nodeId.getValue(), ret);
  54                     return true;
  55                 } catch (TimeoutException e) {
  56                     LOG.error("doSyncupInFuture timeout occured {}", nodeId.getValue(), e);
  57                     return false;
  58                 } finally {
  59                     updateThreadName(oldThreadName);
  60                 }
  61             }
  62         });
  63
  64         return syncup;
  65     }
  66
  67     protected ListenableFuture<Boolean> doSyncupInFuture(final InstanceIdentifier<FlowCapableNode> flowcapableNodePath,
  68                                                          final FlowCapableNode configTree, final FlowCapableNode operationalTree,
  69                                                          final LogicalDatastoreType dsType) throws InterruptedException {
  70         final NodeId nodeId = PathUtil.digNodeId(flowcapableNodePath);
  71         LOG.trace("doSyncupInFuture future {}", nodeId.getValue());
  72
  73         return delegate.syncup(flowcapableNodePath, configTree, operationalTree, dsType);
  74     }
  75
  76     private String updateThreadName(NodeId nodeId) {
  77         final Thread currentThread = Thread.currentThread();
  78         final String oldName = currentThread.getName();
  79         try {
  80             if (oldName.startsWith(SyncReactorFutureDecorator.FRM_RPC_CLIENT_PREFIX)) {
  81                 currentThread.setName(oldName + "@" + nodeId.getValue());
  82             } else {
  83                 LOG.warn("try to update foreign thread name {} {}", nodeId, oldName);
  84             }
  85         } catch (Exception e) {
  86             LOG.error("failed updating threadName {}", nodeId, e);
  87         }
  88         return oldName;
  89     }
  90
  91     private String updateThreadName(String name) {
  92         final Thread currentThread = Thread.currentThread();
  93         final String oldName = currentThread.getName();
  94         try {
  95             if (oldName.startsWith(SyncReactorFutureDecorator.FRM_RPC_CLIENT_PREFIX)) {
  96                 currentThread.setName(name);
  97             } else {
  98                 LOG.warn("try to update foreign thread name {} {}", oldName, name);
  99             }
 100         } catch (Exception e) {
 101             LOG.error("failed updating threadName {}", name, e);
 102         }
 103         return oldName;
 104     }
 105 }