001/**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.activemq.transport.stomp;
018
019import java.io.IOException;
020
021import org.apache.activemq.command.WireFormatInfo;
022import org.apache.activemq.transport.AbstractInactivityMonitor;
023import org.apache.activemq.transport.Transport;
024import org.apache.activemq.wireformat.WireFormat;
025import org.slf4j.Logger;
026import org.slf4j.LoggerFactory;
027
028/**
029 * Used to make sure that commands are arriving periodically from the peer of
030 * the transport.
031 */
032public class StompInactivityMonitor extends AbstractInactivityMonitor {
033
034    private static final Logger LOG = LoggerFactory.getLogger(StompInactivityMonitor.class);
035
036    private boolean isConfigured = false;
037
038    public StompInactivityMonitor(Transport next, WireFormat wireFormat) {
039        super(next, wireFormat);
040    }
041
042    public void startMonitoring() throws IOException {
043        this.isConfigured = true;
044
045        stopConnectCheckTask();
046        startMonitorThreads();
047    }
048
049    @Override
050    protected void processInboundWireFormatInfo(WireFormatInfo info) throws IOException {
051    }
052
053    @Override
054    protected void processOutboundWireFormatInfo(WireFormatInfo info) throws IOException {
055    }
056
057    @Override
058    protected boolean configuredOk() throws IOException {
059
060        if (!isConfigured) {
061            return false;
062        }
063
064        LOG.debug("Stomp Inactivity Monitor read check interval: {}ms, write check interval: {}ms",
065                  getReadCheckTime(), getWriteCheckTime());
066
067        return this.getReadCheckTime() >= 0 && this.getWriteCheckTime() >= 0;
068    }
069}