costin 2002/12/19 00:03:32 Added: src/share/org/apache/tomcat/util/qlog QLogFactory.java Log: Old code I had in my local dirs. I didn't tested it - but it compiles and it should work fine. It allows to use qlog implementation for logging. The intention was to have it as a smooth transition path for components using j-t-c/util Log interface, and eventually to allow qlog to be used as a very light logger. If nobody needs it - please remove it :-) Revision Changes Path 1.1 jakarta-tomcat/src/share/org/apache/tomcat/util/qlog/QLogFactory.java Index: QLogFactory.java =================================================================== /* * ==================================================================== * * The Apache Software License, Version 1.1 * * Copyright (c) 1999-2002 The Apache Software Foundation. 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 acknowlegement: * "This product includes software developed by the * Apache Software Foundation (http://www.apache.org/)." * Alternately, this acknowlegement may appear in the software itself, * if and wherever such third-party acknowlegements normally appear. * * 4. The names "The Jakarta Project", "Commons", 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 names without prior written * permission of the Apache 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 APACHE SOFTWARE FOUNDATION 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. * ==================================================================== * * 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.tomcat.util.qlog; import java.lang.reflect.Constructor; import java.lang.reflect.Method; import java.util.Enumeration; import java.util.Hashtable; import java.util.Vector; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogConfigurationException; import org.apache.commons.logging.LogFactory; import org.apache.commons.logging.LogSource; import org.apache.tomcat.util.log.*; /** * * @author Costin Manolache */ public final class QLogFactory extends LogFactory { static LogManager logManager; static LogDaemon logDaemon; public QLogFactory() { super(); if( logManager == null ) { logManager=new TomcatLogManager(); logDaemon=new LogDaemon(); logDaemon.start(); } } /** * The configuration attributes for this {@link LogFactory}. */ private Hashtable attributes = new Hashtable(); // previously returned instances, to avoid creation of proxies private Hashtable instances = new Hashtable(); // --------------------------------------------------------- Public Methods /** Adapter and registry for QueueLoggers */ static class TomcatLogManager extends LogManager { TomcatLogManager() { // can't be changed after this LogManager olm=org.apache.tomcat.util.log.Log.setLogManager( this ); this.loggers=olm.getLoggers(); this.channels=olm.getChannels(); } } /** * Return the configuration attribute with the specified name (if any), * or <code>null</code> if there is no such attribute. * * @param name Name of the attribute to return */ public Object getAttribute(String name) { return (attributes.get(name)); } /** * Return an array containing the names of all currently defined * configuration attributes. If there are no such attributes, a zero * length array is returned. */ public String[] getAttributeNames() { Vector names = new Vector(); Enumeration keys = attributes.keys(); while (keys.hasMoreElements()) { names.addElement((String) keys.nextElement()); } String results[] = new String[names.size()]; for (int i = 0; i < results.length; i++) { results[i] = (String) names.elementAt(i); } return (results); } /** * Convenience method to derive a name from the specified class and * call <code>getInstance(String)</code> with it. * * @param clazz Class for which a suitable Log name will be derived * * @exception LogConfigurationException if a suitable <code>Log</code> * instance cannot be returned */ public Log getInstance(Class clazz) throws LogConfigurationException { return getInstance( clazz.getName() ); } public Log getInstance(String name) throws LogConfigurationException { Log instance = (Log) instances.get(name); if( instance != null ) return instance; instance =org.apache.tomcat.util.log.Log.getLog( name, name ); instances.put( name, instance ); return instance; } public void release() { instances.clear(); } /** * Remove any configuration attribute associated with the specified name. * If there is no such attribute, no action is taken. * * @param name Name of the attribute to remove */ public void removeAttribute(String name) { attributes.remove(name); } /** * Set the configuration attribute with the specified name. Calling * this with a <code>null</code> value is equivalent to calling * <code>removeAttribute(name)</code>. * * @param name Name of the attribute to set * @param value Value of the attribute to set, or <code>null</code> * to remove any setting for this attribute */ public void setAttribute(String name, Object value) { if (value == null) { attributes.remove(name); } else { attributes.put(name, value); } } }
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