Oops. Source code appended to this email. -----Original Message----- From: Liu, Ken (C) Sent: Friday, September 19, 2003 1:43 PM To: [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: ThrowableClassMatchFilter doesn't work with config files
Hi there - I've been trying out the filters in jakarta-log4j-sandbox, and I've been having trouble with the ThrowableClassMatchFilter. ... ----------- /* * ============================================================================ * The Apache Software License, Version 1.1 * ============================================================================ * * Copyright (C) 1999 The Apache Software Foundation. All rights reserved. * * Redistribution and use in source and binary forms, with or without modifica- * tion, 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 Apache Software Foundation (http://www.apache.org/)." * Alternately, this acknowledgment may appear in the software itself, if * and wherever such third-party acknowledgments normally appear. * * 4. The names "log4j" and "Apache Software Foundation" must not be used to * endorse or promote products derived from this software without prior * written permission. For written permission, please contact * [EMAIL PROTECTED] * * 5. Products derived from this software may not be called "Apache", nor may * "Apache" appear in their name, without prior written permission of the * Apache Software Foundation. * * 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 * APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU- * DING, 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. * * This software consists of voluntary contributions made by many individuals * on behalf of the Apache Software Foundation. For more information on the * Apache Software Foundation, please see <http://www.apache.org/>. * */ package org.apache.log4j.filter; import org.apache.log4j.spi.LoggingEvent; import org.apache.log4j.spi.ThrowableInformation; import org.apache.log4j.helpers.LogLog; /** * ThrowableClassMatchFiler matches a configured throwable * instance name (e.g. java.io.IOException) against the * Throwable, if any, in a logging event. * * <p>The filter admits two options <b>ThrowableClass</b> and * <b>IncludeSubclass</b>. * * <p><b>ThrowableClass<b> is the exception class to match. If * the <b>IncludeSubclasses</b> option is set to true, subclasses * of the <b>ThrowableClass</b> will be considered a match. * * <p>For more information about how the logging event will be * passed to the appender for reporting, please see * the [EMAIL PROTECTED] MatchFilterBase} class. * * @author Yoav Shapira <[EMAIL PROTECTED]> * * @since 1.3 */ public class ThrowableClassMatchFilter extends MatchFilterBase { /** * The throwable class to match. */ private String throwableClass; /** * The Class instance corresponding to the throwable class param */ private Class throwableClazz; /** * Whether subclasses of ThrowableClass * should count as a match. */ private boolean includeSubclasses = true; /** * Sets the throwable class to match. * * @param throwableClass The throwable class */ public void setThrowableClass(String throwableClass) { this.throwableClass = throwableClass; } /** * Returns the throwable class * to match. * * @return Class */ public String getThrowableClass() { return throwableClass; } /** * Sets whether subclasses of the throwableClass * will match the filter or not. * * @param includeSubclasses True if subclasses match */ public void setIncludeSubclasses(boolean includeSubclasses) { this.includeSubclasses = includeSubclasses; } /** * Returns whether subclasses of the throwableClass * are included as a match. * * @return True if subclasses match */ public boolean getIncludeSubclasses() { return includeSubclasses; } public void activateOptions() { super.activateOptions(); try { throwableClazz = Class.forName(getThrowableClass()); } catch (ClassNotFoundException cnfe) { LogLog.warn("Could not load Throwable class " + getThrowableClass()); } } /** * Checks the given event to see if it has * a throwable. If a throwable is present and its * class exactly matches that of the <b>throwableClass</b> * property, this method returns true. If * <b>includeSubclasses</b> is set to true and the * throwable is a subclass of <b>throwableClass<b>, then * this method also returns true. * * @param event The logging event * @return boolean True if matches criteria */ protected boolean match(LoggingEvent event) { ThrowableInformation ti = event.getThrowableInformation(); if(ti == null) { return false; } else { Throwable throwable = ti.getThrowable(); if(throwable == null) { return false; } else { if(throwable.getClass().equals(getThrowableClass())) { return true; } else if(getIncludeSubclasses()) { return (throwableClazz.isInstance(throwable)); } else { return false; } } } } } // End of class: ThrowableClassMatchFilter.java --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
