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.util; 018 019import org.apache.activemq.broker.LockableServiceSupport; 020import org.apache.activemq.broker.Locker; 021import org.apache.activemq.broker.SuppressReplyException; 022import org.slf4j.Logger; 023import org.slf4j.LoggerFactory; 024 025import java.io.IOException; 026 027/** 028 * @org.apache.xbean.XBean 029 */ 030public class LeaseLockerIOExceptionHandler extends DefaultIOExceptionHandler { 031 private static final Logger LOG = LoggerFactory.getLogger(LeaseLockerIOExceptionHandler.class); 032 033 public LeaseLockerIOExceptionHandler() { 034 setIgnoreSQLExceptions(false); 035 setStopStartConnectors(true); 036 } 037 038 // fail only when we get an authoritative answer from the db w/o exceptions 039 @Override 040 protected boolean hasLockOwnership() throws IOException { 041 boolean hasLock = true; 042 043 if (broker.getPersistenceAdapter() instanceof LockableServiceSupport) { 044 Locker locker = ((LockableServiceSupport) broker.getPersistenceAdapter()).getLocker(); 045 046 if (locker != null) { 047 try { 048 if (!locker.keepAlive()) { 049 hasLock = false; 050 } 051 } 052 catch (SuppressReplyException ignoreWhileHandlingInProgress) { 053 } 054 catch (IOException ignored) { 055 } 056 057 if (!hasLock) { 058 LOG.warn("Lock keepAlive failed, no longer lock owner with: {}", locker); 059 throw new IOException("Lock keepAlive failed, no longer lock owner with: " + locker); 060 } 061 } 062 } 063 064 return hasLock; 065 } 066}