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.store.jdbc;
018    
019    import java.io.IOException;
020    
021    import org.apache.activemq.broker.Locker;
022    import org.apache.activemq.util.DefaultIOExceptionHandler;
023    
024    /**
025     * @org.apache.xbean.XBean
026     */
027    public class JDBCIOExceptionHandler extends DefaultIOExceptionHandler {
028    
029        public JDBCIOExceptionHandler() {
030            setIgnoreSQLExceptions(false);
031            setStopStartConnectors(true);
032        }
033    
034        @Override
035        protected boolean hasLockOwnership() throws IOException {
036            boolean hasLock = true;
037            if (broker.getPersistenceAdapter() instanceof JDBCPersistenceAdapter) {
038                JDBCPersistenceAdapter jdbcPersistenceAdapter = (JDBCPersistenceAdapter) broker.getPersistenceAdapter();
039                Locker locker = jdbcPersistenceAdapter.getLocker();
040                if (locker != null) {
041                    try {
042                        if (!locker.keepAlive()) {
043                            hasLock = false;
044                        }
045                    } catch (IOException ignored) {
046                    }
047    
048                    if (!hasLock) {
049                        throw new IOException("PersistenceAdapter lock no longer valid using: " + locker);
050                    }
051                }
052            }
053            return hasLock;
054        }
055    
056    }