openflow-protocol-impl/src/main/java/org/opendaylight/openflowjava/protocol/impl/connection/ResponseExpectedRpcListener.java

   1 /*
   2  * Copyright (c) 2014 Pantheon Technologies s.r.o. 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 package org.opendaylight.openflowjava.protocol.impl.connection;
   9
  10 import java.util.concurrent.TimeoutException;
  11
  12 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.OfHeader;
  13 import org.slf4j.Logger;
  14 import org.slf4j.LoggerFactory;
  15
  16 import com.google.common.base.Preconditions;
  17 import com.google.common.cache.Cache;
  18
  19 final class ResponseExpectedRpcListener<T extends OfHeader> extends AbstractRpcListener<T> {
  20     private static final Logger LOG = LoggerFactory.getLogger(ResponseExpectedRpcListener.class);
  21     private final Cache<RpcResponseKey, ResponseExpectedRpcListener<?>> cache;
  22     private final RpcResponseKey key;
  23
  24     ResponseExpectedRpcListener(final String failureInfo,
  25             final Cache<RpcResponseKey, ResponseExpectedRpcListener<?>> cache, final RpcResponseKey key) {
  26         super(failureInfo);
  27         this.cache = Preconditions.checkNotNull(cache);
  28         this.key = Preconditions.checkNotNull(key);
  29     }
  30
  31     public void discard() {
  32         LOG.warn("Request for {} did not receive a response", key);
  33         failedRpc(new TimeoutException("Request timed out"));
  34     }
  35
  36     @SuppressWarnings("unchecked")
  37     public void completed(final OfHeader message) {
  38         successfulRpc((T)message);
  39     }
  40
  41     @Override
  42     protected void operationSuccessful() {
  43         LOG.debug("Request for {} sent successfully", key);
  44         cache.put(key, this);
  45     }
  46 }