Mercurial > hg > blitz_condensed
diff src/com/go/trove/util/tq/TransactionQueueEvent.java @ 0:3dc0c5604566
Initial checkin of blitz 2.0 fcs - no installer yet.
author | Dan Creswell <dan.creswell@gmail.com> |
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date | Sat, 21 Mar 2009 11:00:06 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/com/go/trove/util/tq/TransactionQueueEvent.java Sat Mar 21 11:00:06 2009 +0000 @@ -0,0 +1,163 @@ +/* ==================================================================== + * Trove - Copyright (c) 1997-2000 Walt Disney Internet Group + * ==================================================================== + * The Tea Software License, Version 1.1 + * + * Copyright (c) 2000 Walt Disney Internet Group. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. The end-user documentation included with the redistribution, + * if any, must include the following acknowledgment: + * "This product includes software developed by the + * Walt Disney Internet Group (http://opensource.go.com/)." + * Alternately, this acknowledgment may appear in the software itself, + * if and wherever such third-party acknowledgments normally appear. + * + * 4. The names "Tea", "TeaServlet", "Kettle", "Trove" and "BeanDoc" must + * not be used to endorse or promote products derived from this + * software without prior written permission. For written + * permission, please contact opensource@dig.com. + * + * 5. Products derived from this software may not be called "Tea", + * "TeaServlet", "Kettle" or "Trove", nor may "Tea", "TeaServlet", + * "Kettle", "Trove" or "BeanDoc" appear in their name, without prior + * written permission of the Walt Disney Internet Group. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE WALT DISNEY INTERNET GROUP OR ITS + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * For more information about Tea, please see http://opensource.go.com/. + */ + +package com.go.trove.util.tq; + +import java.util.EventObject; +import java.util.Date; + +/****************************************************************************** + * An event that contains information from a {@link TransactionQueue}. + * TransactionQueueEvents can be received by implementing a + * {@link TransactionQueueListener}. + * + * @author Brian S O'Neill + * @version + * <!--$$Revision: 1.1 $-->, <!--$$JustDate:--> 9/25/00 <!-- $--> + */ +public class TransactionQueueEvent extends EventObject { + private Transaction mTransaction; + private Throwable mThrowable; + private long mTimestampMillis; + private long mStageDuration; + + private transient Date mTimestamp; + + public TransactionQueueEvent(TransactionQueue source, + Transaction transaction) { + super(source); + mTransaction = transaction; + mTimestampMillis = System.currentTimeMillis(); + } + + public TransactionQueueEvent(TransactionQueue source, + Transaction transaction, + Throwable throwable) { + super(source); + mTransaction = transaction; + mThrowable = throwable; + mTimestampMillis = System.currentTimeMillis(); + } + + /** + * Copies the given event, but gives it a new timestamp and computes a + * stage duration. + */ + public TransactionQueueEvent(TransactionQueueEvent event) { + super(event.getSource()); + mTransaction = event.mTransaction; + mThrowable = event.mThrowable; + mStageDuration = (mTimestampMillis = System.currentTimeMillis()) - + event.mTimestampMillis; + } + + /** + * Copies the given event, but gives it a different throwable, a new + * timestamp and computes a stage duration. + */ + public TransactionQueueEvent(TransactionQueueEvent event, + Throwable throwable) { + super(event.getSource()); + mTransaction = event.mTransaction; + mThrowable = throwable; + mStageDuration = (mTimestampMillis = System.currentTimeMillis()) - + event.mTimestampMillis; + } + + public TransactionQueue getTransactionQueue() { + return (TransactionQueue)getSource(); + } + + /** + * Returns the date and time of this event. + */ + public Date getTimestamp() { + if (mTimestamp == null) { + mTimestamp = new Date(mTimestampMillis); + } + return mTimestamp; + } + + /** + * Returns the date and time of this event as milliseconds since 1970. + */ + public long getTimestampMillis() { + return mTimestampMillis; + } + + /** + * Returns the amount of time, in milliseconds, that the transaction was + * in a TransactionQueue stage. The implied meaning of this value depends + * on how this event was passed to a listener. + * + * @see TransactionQueueListener + */ + public long getStageDuration() { + return mStageDuration; + } + + /** + * Returns the transaction that was being processed by the + * TransactionQueue. + */ + public Transaction getTransaction() { + return mTransaction; + } + + /** + * Returns the exception that occurred while servicing the transaction, if + * applicable. + */ + public Throwable getThrowable() { + return mThrowable; + } +}