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.controller.md.sal.common.api.data.LogicalDatastoreType;
  16 import org.opendaylight.openflowplugin.applications.frsync.SyncReactor;
  17 import org.opendaylight.openflowplugin.applications.frsync.util.PathUtil;
  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 FlowCapableNode configTree, final FlowCapableNode operationalTree,
  41                                             final LogicalDatastoreType dsType) throws InterruptedException {
  42         final NodeId nodeId = PathUtil.digNodeId(flowcapableNodePath);
  43         LOG.trace("syncup future {}", nodeId.getValue());
  44
  45         final ListenableFuture<Boolean> syncup = executorService.submit(() -> {
  46             final String oldThreadName = updateThreadName(nodeId);
  47
  48             try {
  49                 final Boolean ret = doSyncupInFuture(flowcapableNodePath, configTree, operationalTree, dsType)
  50                         .get(10000, TimeUnit.MILLISECONDS);
  51                 LOG.trace("ret {} {}", nodeId.getValue(), ret);
  52                 return true;
  53             } catch (TimeoutException e) {
  54                 LOG.error("doSyncupInFuture timeout occured {}", nodeId.getValue(), e);
  55                 return false;
  56             } finally {
  57                 updateThreadName(oldThreadName);
  58             }
  59         });
  60
  61         return syncup;
  62     }
  63
  64     protected ListenableFuture<Boolean> doSyncupInFuture(final InstanceIdentifier<FlowCapableNode> flowcapableNodePath,
  65                                                          final FlowCapableNode configTree, final FlowCapableNode operationalTree,
  66                                                          final LogicalDatastoreType dsType) throws InterruptedException {
  67         final NodeId nodeId = PathUtil.digNodeId(flowcapableNodePath);
  68         LOG.trace("doSyncupInFuture future {}", nodeId.getValue());
  69
  70         return delegate.syncup(flowcapableNodePath, configTree, operationalTree, dsType);
  71     }
  72
  73     private String updateThreadName(NodeId nodeId) {
  74         final Thread currentThread = Thread.currentThread();
  75         final String oldName = currentThread.getName();
  76         try {
  77             if (oldName.startsWith(SyncReactorFutureDecorator.FRM_RPC_CLIENT_PREFIX)) {
  78                 currentThread.setName(oldName + "@" + nodeId.getValue());
  79             } else {
  80                 LOG.warn("try to update foreign thread name {} {}", nodeId, oldName);
  81             }
  82         } catch (Exception e) {
  83             LOG.error("failed updating threadName {}", nodeId, e);
  84         }
  85         return oldName;
  86     }
  87
  88     private void updateThreadName(String name) {
  89         final Thread currentThread = Thread.currentThread();
  90         final String oldName = currentThread.getName();
  91         try {
  92             if (oldName.startsWith(SyncReactorFutureDecorator.FRM_RPC_CLIENT_PREFIX)) {
  93                 currentThread.setName(name);
  94             } else {
  95                 LOG.warn("try to update foreign thread name {} {}", oldName, name);
  96             }
  97         } catch (Exception e) {
  98             LOG.error("failed updating threadName {}", name, e);
  99         }
 100     }
 101 }