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.resource.ResourceException; 021import javax.resource.spi.LocalTransaction; 022import javax.transaction.xa.XAException; 023import javax.transaction.xa.XAResource; 024import javax.transaction.xa.Xid; 025 026import org.apache.activemq.TransactionContext; 027 028/** 029 * Used to provide a LocalTransaction and XAResource to a JMS session. 030 */ 031public class LocalAndXATransaction implements XAResource, LocalTransaction { 032 033 private final TransactionContext transactionContext; 034 private boolean inManagedTx; 035 036 public LocalAndXATransaction(TransactionContext transactionContext) { 037 this.transactionContext = transactionContext; 038 } 039 040 public void setInManagedTx(boolean inManagedTx) throws JMSException { 041 this.inManagedTx = inManagedTx; 042 if (!inManagedTx) { 043 transactionContext.cleanup(); 044 } 045 } 046 047 public void begin() throws ResourceException { 048 try { 049 transactionContext.begin(); 050 setInManagedTx(true); 051 } catch (JMSException e) { 052 throw new ResourceException("begin failed.", e); 053 } 054 } 055 056 public void commit() throws ResourceException { 057 try { 058 transactionContext.commit(); 059 } catch (JMSException e) { 060 throw new ResourceException("commit failed.", e); 061 } finally { 062 try { 063 setInManagedTx(false); 064 } catch (JMSException e) { 065 throw new ResourceException("commit failed.", e); 066 } 067 } 068 } 069 070 public void rollback() throws ResourceException { 071 try { 072 transactionContext.rollback(); 073 } catch (JMSException e) { 074 throw new ResourceException("rollback failed.", e); 075 } finally { 076 try { 077 setInManagedTx(false); 078 } catch (JMSException e) { 079 throw new ResourceException("rollback failed.", e); 080 } 081 } 082 } 083 084 public void commit(Xid arg0, boolean arg1) throws XAException { 085 transactionContext.commit(arg0, arg1); 086 } 087 088 public void end(Xid arg0, int arg1) throws XAException { 089 try { 090 transactionContext.end(arg0, arg1); 091 } finally { 092 try { 093 setInManagedTx(false); 094 } catch (JMSException e) { 095 throw (XAException)new XAException(XAException.XAER_PROTO).initCause(e); 096 } 097 } 098 } 099 100 public void forget(Xid arg0) throws XAException { 101 transactionContext.forget(arg0); 102 } 103 104 public int getTransactionTimeout() throws XAException { 105 return transactionContext.getTransactionTimeout(); 106 } 107 108 public boolean isSameRM(XAResource xaresource) throws XAException { 109 if (xaresource == null) { 110 return false; 111 } 112 // Do we have to unwrap? 113 if (xaresource instanceof LocalAndXATransaction) { 114 xaresource = ((LocalAndXATransaction)xaresource).transactionContext; 115 } 116 return transactionContext.isSameRM(xaresource); 117 } 118 119 public int prepare(Xid arg0) throws XAException { 120 return transactionContext.prepare(arg0); 121 } 122 123 public Xid[] recover(int arg0) throws XAException { 124 return transactionContext.recover(arg0); 125 } 126 127 public void rollback(Xid arg0) throws XAException { 128 transactionContext.rollback(arg0); 129 } 130 131 public boolean setTransactionTimeout(int arg0) throws XAException { 132 return transactionContext.setTransactionTimeout(arg0); 133 } 134 135 public void start(Xid arg0, int arg1) throws XAException { 136 transactionContext.start(arg0, arg1); 137 try { 138 setInManagedTx(true); 139 } catch (JMSException e) { 140 throw (XAException)new XAException(XAException.XAER_PROTO).initCause(e); 141 } 142 } 143 144 public boolean isInManagedTx() { 145 return inManagedTx; 146 } 147 148 public void cleanup() { 149 transactionContext.cleanup(); 150 inManagedTx = false; 151 } 152}