| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.qpid.server; |
| |
| import org.apache.qpid.AMQException; |
| import org.apache.qpid.server.logging.LogActor; |
| import org.apache.qpid.server.logging.LogMessage; |
| import org.apache.qpid.server.logging.LogSubject; |
| import org.apache.qpid.server.logging.actors.CurrentActor; |
| import org.apache.qpid.server.logging.messages.ChannelMessages; |
| import org.apache.qpid.server.txn.ServerTransaction; |
| |
| public class TransactionTimeoutHelper |
| { |
| private static final String OPEN_TRANSACTION_TIMEOUT_ERROR = "Open transaction timed out"; |
| private static final String IDLE_TRANSACTION_TIMEOUT_ERROR = "Idle transaction timed out"; |
| |
| private final LogSubject _logSubject; |
| |
| private final CloseAction _closeAction; |
| |
| public TransactionTimeoutHelper(final LogSubject logSubject, final CloseAction closeAction) |
| { |
| _logSubject = logSubject; |
| _closeAction = closeAction; |
| } |
| |
| public void checkIdleOrOpenTimes(ServerTransaction transaction, long openWarn, long openClose, long idleWarn, long idleClose) throws AMQException |
| { |
| if (transaction.isTransactional()) |
| { |
| final long transactionUpdateTime = transaction.getTransactionUpdateTime(); |
| if(transactionUpdateTime > 0) |
| { |
| long idleTime = System.currentTimeMillis() - transactionUpdateTime; |
| boolean closed = logAndCloseIfNecessary(idleTime, idleWarn, idleClose, ChannelMessages.IDLE_TXN(idleTime), IDLE_TRANSACTION_TIMEOUT_ERROR); |
| if (closed) |
| { |
| return; // no point proceeding to check the open time |
| } |
| } |
| |
| final long transactionStartTime = transaction.getTransactionStartTime(); |
| if(transactionStartTime > 0) |
| { |
| long openTime = System.currentTimeMillis() - transactionStartTime; |
| logAndCloseIfNecessary(openTime, openWarn, openClose, ChannelMessages.OPEN_TXN(openTime), OPEN_TRANSACTION_TIMEOUT_ERROR); |
| } |
| } |
| } |
| |
| /** |
| * @return true iff closeTimeout was exceeded |
| */ |
| private boolean logAndCloseIfNecessary(final long timeSoFar, |
| final long warnTimeout, final long closeTimeout, |
| final LogMessage warnMessage, final String closeMessage) throws AMQException |
| { |
| if (isTimedOut(timeSoFar, warnTimeout)) |
| { |
| LogActor logActor = CurrentActor.get(); |
| logActor.message(_logSubject, warnMessage); |
| } |
| |
| if(isTimedOut(timeSoFar, closeTimeout)) |
| { |
| _closeAction.doTimeoutAction(closeMessage); |
| return true; |
| } |
| else |
| { |
| return false; |
| } |
| } |
| |
| private boolean isTimedOut(long timeSoFar, long timeout) |
| { |
| return timeout > 0L && timeSoFar > timeout; |
| } |
| |
| public interface CloseAction |
| { |
| void doTimeoutAction(String reason) throws AMQException; |
| } |
| |
| } |