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.ra; 018 019import javax.jms.JMSException; 020import javax.transaction.xa.XAException; 021import javax.transaction.xa.XAResource; 022import javax.transaction.xa.Xid; 023 024import org.apache.activemq.TransactionContext; 025import org.apache.activemq.command.TransactionId; 026import org.apache.activemq.transaction.Synchronization; 027 028/** 029 * Allows us to switch between using a shared transaction context, or using a 030 * local transaction context. 031 * 032 * 033 */ 034public class ManagedTransactionContext extends TransactionContext { 035 036 private final TransactionContext sharedContext; 037 private boolean useSharedTxContext; 038 039 public ManagedTransactionContext(TransactionContext sharedContext) { 040 super(sharedContext.getConnection()); 041 this.sharedContext = sharedContext; 042 setLocalTransactionEventListener(sharedContext.getLocalTransactionEventListener()); 043 } 044 045 public void setUseSharedTxContext(boolean enable) throws JMSException { 046 if (isInLocalTransaction() || isInXATransaction()) { 047 throw new JMSException("The resource is already being used in transaction context."); 048 } 049 useSharedTxContext = enable; 050 } 051 052 public void begin() throws JMSException { 053 if (useSharedTxContext) { 054 sharedContext.begin(); 055 } else { 056 super.begin(); 057 } 058 } 059 060 public void commit() throws JMSException { 061 if (useSharedTxContext) { 062 sharedContext.commit(); 063 } else { 064 super.commit(); 065 } 066 } 067 068 public void commit(Xid xid, boolean onePhase) throws XAException { 069 if (useSharedTxContext) { 070 sharedContext.commit(xid, onePhase); 071 } else { 072 super.commit(xid, onePhase); 073 } 074 } 075 076 public void end(Xid xid, int flags) throws XAException { 077 if (useSharedTxContext) { 078 sharedContext.end(xid, flags); 079 } else { 080 super.end(xid, flags); 081 } 082 } 083 084 public void forget(Xid xid) throws XAException { 085 if (useSharedTxContext) { 086 sharedContext.forget(xid); 087 } else { 088 super.forget(xid); 089 } 090 } 091 092 public TransactionId getTransactionId() { 093 if (useSharedTxContext) { 094 return sharedContext.getTransactionId(); 095 } else { 096 return super.getTransactionId(); 097 } 098 } 099 100 public int getTransactionTimeout() throws XAException { 101 if (useSharedTxContext) { 102 return sharedContext.getTransactionTimeout(); 103 } else { 104 return super.getTransactionTimeout(); 105 } 106 } 107 108 public boolean isInLocalTransaction() { 109 if (useSharedTxContext) { 110 return sharedContext.isInLocalTransaction(); 111 } else { 112 return super.isInLocalTransaction(); 113 } 114 } 115 116 public boolean isInXATransaction() { 117 if (useSharedTxContext) { 118 // context considers endesd XA transactions as active, so just check for presence 119 // of tx when it is shared 120 return sharedContext.isInTransaction(); 121 } else { 122 return super.isInXATransaction(); 123 } 124 } 125 126 @Override 127 public boolean isInTransaction() { 128 return isInXATransaction() || isInLocalTransaction(); 129 } 130 131 public boolean isSameRM(XAResource xaResource) throws XAException { 132 if (useSharedTxContext) { 133 return sharedContext.isSameRM(xaResource); 134 } else { 135 return super.isSameRM(xaResource); 136 } 137 } 138 139 public int prepare(Xid xid) throws XAException { 140 if (useSharedTxContext) { 141 return sharedContext.prepare(xid); 142 } else { 143 return super.prepare(xid); 144 } 145 } 146 147 public Xid[] recover(int flag) throws XAException { 148 if (useSharedTxContext) { 149 return sharedContext.recover(flag); 150 } else { 151 return super.recover(flag); 152 } 153 } 154 155 public void rollback() throws JMSException { 156 if (useSharedTxContext) { 157 sharedContext.rollback(); 158 } else { 159 super.rollback(); 160 } 161 } 162 163 public void rollback(Xid xid) throws XAException { 164 if (useSharedTxContext) { 165 sharedContext.rollback(xid); 166 } else { 167 super.rollback(xid); 168 } 169 } 170 171 public boolean setTransactionTimeout(int seconds) throws XAException { 172 if (useSharedTxContext) { 173 return sharedContext.setTransactionTimeout(seconds); 174 } else { 175 return super.setTransactionTimeout(seconds); 176 } 177 } 178 179 public void start(Xid xid, int flags) throws XAException { 180 if (useSharedTxContext) { 181 sharedContext.start(xid, flags); 182 } else { 183 super.start(xid, flags); 184 } 185 } 186 187 public void addSynchronization(Synchronization s) { 188 if (useSharedTxContext) { 189 sharedContext.addSynchronization(s); 190 } else { 191 super.addSynchronization(s); 192 } 193 } 194}