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 */ 017 package org.apache.activemq.transport.stomp; 018 019 import java.io.IOException; 020 021 import org.apache.activemq.command.WireFormatInfo; 022 import org.apache.activemq.transport.AbstractInactivityMonitor; 023 import org.apache.activemq.transport.Transport; 024 import org.apache.activemq.wireformat.WireFormat; 025 import org.slf4j.Logger; 026 import org.slf4j.LoggerFactory; 027 028 /** 029 * Used to make sure that commands are arriving periodically from the peer of 030 * the transport. 031 */ 032 public 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 this.startMonitorThreads(); 045 } 046 047 @Override 048 protected void processInboundWireFormatInfo(WireFormatInfo info) throws IOException { 049 } 050 051 @Override 052 protected void processOutboundWireFormatInfo(WireFormatInfo info) throws IOException{ 053 } 054 055 @Override 056 protected boolean configuredOk() throws IOException { 057 058 if (!isConfigured) { 059 return false; 060 } 061 062 LOG.debug("Stomp Inactivity Monitor read check: " + getReadCheckTime() + 063 ", write check: " + getWriteCheckTime()); 064 065 if (this.getReadCheckTime() >= 0 && this.getWriteCheckTime() >= 0) { 066 return true; 067 } 068 069 return false; 070 } 071 }