2 * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
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
9 package org.opendaylight.openflowplugin.impl.connection;
11 import com.google.common.util.concurrent.FutureCallback;
12 import javax.annotation.Nonnull;
13 import org.opendaylight.openflowjava.protocol.api.connection.OutboundQueue;
14 import org.opendaylight.openflowplugin.api.openflow.connection.OutboundQueueProvider;
15 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.BarrierInput;
16 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.BarrierInputBuilder;
17 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.OfHeader;
18 import org.slf4j.Logger;
19 import org.slf4j.LoggerFactory;
21 public class OutboundQueueProviderImpl implements OutboundQueueProvider {
22 private static final Logger LOG = LoggerFactory.getLogger(OutboundQueueProviderImpl.class);
23 private final short ofVersion;
24 private volatile OutboundQueue outboundQueue;
26 public OutboundQueueProviderImpl(final short ofVersion) {
27 this.ofVersion = ofVersion;
32 public BarrierInput createBarrierRequest(@Nonnull final Long xid) {
33 final BarrierInputBuilder biBuilder = new BarrierInputBuilder();
34 biBuilder.setVersion(ofVersion);
35 biBuilder.setXid(xid);
36 return biBuilder.build();
41 public synchronized void onConnectionQueueChanged(final OutboundQueue queue) {
42 LOG.debug("Replacing queue {} with {}", outboundQueue, queue);
43 outboundQueue = queue;
48 public Long reserveEntry() {
50 OutboundQueue queue = outboundQueue;
52 LOG.error("No queue present, failing request");
56 final Long ret = queue.reserveEntry();
61 LOG.debug("Reservation failed, trying to recover");
63 while (queue.equals(outboundQueue)) {
64 LOG.debug("Queue {} is not replaced yet, going to sleep", queue);
67 } catch (InterruptedException e) {
68 LOG.error("Interrupted while waiting for entry", e);
77 public void commitEntry(final Long xid, final OfHeader message, final FutureCallback<OfHeader> callback) {
78 outboundQueue.commitEntry(xid, message, callback);