/* * 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 * 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", "Tomcat", 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 apache@apache.org. * * 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 * . * */ package org.apache.commons.el; import java.io.PrintStream; import java.text.MessageFormat; import javax.servlet.jsp.el.ELException; /** * *

The evaluator may pass an instance of this class to operators * and expressions during evaluation. They should use this to log any * warning or error messages that might come up. This allows all of * our logging policies to be concentrated in one class. * *

Errors are conditions that are severe enough to abort operation. * Warnings are conditions through which the operation may continue, * but which should be reported to the developer. * * @author Nathan Abramson - Art Technology Group * @version $Change: 181177 $$DateTime: 2001/06/26 08:45:09 $$Author: luehe $ **/ public class Logger { //------------------------------------- // Member variables //------------------------------------- PrintStream mOut; //------------------------------------- /** * * Constructor * * @param pOut the PrintStream to which warnings should be printed **/ public Logger (PrintStream pOut) { mOut = pOut; } //------------------------------------- /** * * Returns true if the application should even bother to try logging * a warning. **/ public boolean isLoggingWarning () { return false; } //------------------------------------- /** * * Logs a warning **/ public void logWarning (String pMessage, Throwable pRootCause) throws ELException { if (isLoggingWarning ()) { if (pMessage == null) { System.out.println (pRootCause); } else if (pRootCause == null) { System.out.println (pMessage); } else { System.out.println (pMessage + ": " + pRootCause); } } } //------------------------------------- /** * * Logs a warning **/ public void logWarning (String pTemplate) throws ELException { if (isLoggingWarning ()) { logWarning (pTemplate, null); } } //------------------------------------- /** * * Logs a warning **/ public void logWarning (Throwable pRootCause) throws ELException { if (isLoggingWarning ()) { logWarning (null, pRootCause); } } //------------------------------------- /** * * Logs a warning **/ public void logWarning (String pTemplate, Object pArg0) throws ELException { if (isLoggingWarning ()) { logWarning (MessageFormat.format (pTemplate, new Object [] { "" + pArg0, })); } } //------------------------------------- /** * * Logs a warning **/ public void logWarning (String pTemplate, Throwable pRootCause, Object pArg0) throws ELException { if (isLoggingWarning ()) { logWarning (MessageFormat.format (pTemplate, new Object [] { "" + pArg0, }), pRootCause); } } //------------------------------------- /** * * Logs a warning **/ public void logWarning (String pTemplate, Object pArg0, Object pArg1) throws ELException { if (isLoggingWarning ()) { logWarning (MessageFormat.format (pTemplate, new Object [] { "" + pArg0, "" + pArg1, })); } } //------------------------------------- /** * * Logs a warning **/ public void logWarning (String pTemplate, Throwable pRootCause, Object pArg0, Object pArg1) throws ELException { if (isLoggingWarning ()) { logWarning (MessageFormat.format (pTemplate, new Object [] { "" + pArg0, "" + pArg1, }), pRootCause); } } //------------------------------------- /** * * Logs a warning **/ public void logWarning (String pTemplate, Object pArg0, Object pArg1, Object pArg2) throws ELException { if (isLoggingWarning ()) { logWarning (MessageFormat.format (pTemplate, new Object [] { "" + pArg0, "" + pArg1, "" + pArg2, })); } } //------------------------------------- /** * * Logs a warning **/ public void logWarning (String pTemplate, Throwable pRootCause, Object pArg0, Object pArg1, Object pArg2) throws ELException { if (isLoggingWarning ()) { logWarning (MessageFormat.format (pTemplate, new Object [] { "" + pArg0, "" + pArg1, "" + pArg2, }), pRootCause); } } //------------------------------------- /** * * Logs a warning **/ public void logWarning (String pTemplate, Object pArg0, Object pArg1, Object pArg2, Object pArg3) throws ELException { if (isLoggingWarning ()) { logWarning (MessageFormat.format (pTemplate, new Object [] { "" + pArg0, "" + pArg1, "" + pArg2, "" + pArg3, })); } } //------------------------------------- /** * * Logs a warning **/ public void logWarning (String pTemplate, Throwable pRootCause, Object pArg0, Object pArg1, Object pArg2, Object pArg3) throws ELException { if (isLoggingWarning ()) { logWarning (MessageFormat.format (pTemplate, new Object [] { "" + pArg0, "" + pArg1, "" + pArg2, "" + pArg3, }), pRootCause); } } //------------------------------------- /** * * Logs a warning **/ public void logWarning (String pTemplate, Object pArg0, Object pArg1, Object pArg2, Object pArg3, Object pArg4) throws ELException { if (isLoggingWarning ()) { logWarning (MessageFormat.format (pTemplate, new Object [] { "" + pArg0, "" + pArg1, "" + pArg2, "" + pArg3, "" + pArg4, })); } } //------------------------------------- /** * * Logs a warning **/ public void logWarning (String pTemplate, Throwable pRootCause, Object pArg0, Object pArg1, Object pArg2, Object pArg3, Object pArg4) throws ELException { if (isLoggingWarning ()) { logWarning (MessageFormat.format (pTemplate, new Object [] { "" + pArg0, "" + pArg1, "" + pArg2, "" + pArg3, "" + pArg4, }), pRootCause); } } //------------------------------------- /** * * Logs a warning **/ public void logWarning (String pTemplate, Object pArg0, Object pArg1, Object pArg2, Object pArg3, Object pArg4, Object pArg5) throws ELException { if (isLoggingWarning ()) { logWarning (MessageFormat.format (pTemplate, new Object [] { "" + pArg0, "" + pArg1, "" + pArg2, "" + pArg3, "" + pArg4, "" + pArg5, })); } } //------------------------------------- /** * * Logs a warning **/ public void logWarning (String pTemplate, Throwable pRootCause, Object pArg0, Object pArg1, Object pArg2, Object pArg3, Object pArg4, Object pArg5) throws ELException { if (isLoggingWarning ()) { logWarning (MessageFormat.format (pTemplate, new Object [] { "" + pArg0, "" + pArg1, "" + pArg2, "" + pArg3, "" + pArg4, "" + pArg5, }), pRootCause); } } //------------------------------------- /** * * Returns true if the application should even bother to try logging * an error. **/ public boolean isLoggingError () { return true; } //------------------------------------- /** * * Logs an error **/ public void logError (String pMessage, Throwable pRootCause) throws ELException { if (isLoggingError ()) { if (pMessage == null) { throw new ELException (pRootCause); } else if (pRootCause == null) { throw new ELException (pMessage); } else { throw new ELException (pMessage, pRootCause); } } } //------------------------------------- /** * * Logs an error **/ public void logError (String pTemplate) throws ELException { if (isLoggingError ()) { logError (pTemplate, null); } } //------------------------------------- /** * * Logs an error **/ public void logError (Throwable pRootCause) throws ELException { if (isLoggingError ()) { logError (null, pRootCause); } } //------------------------------------- /** * * Logs an error **/ public void logError (String pTemplate, Object pArg0) throws ELException { if (isLoggingError ()) { logError (MessageFormat.format (pTemplate, new Object [] { "" + pArg0, })); } } //------------------------------------- /** * * Logs an error **/ public void logError (String pTemplate, Throwable pRootCause, Object pArg0) throws ELException { if (isLoggingError ()) { logError (MessageFormat.format (pTemplate, new Object [] { "" + pArg0, }), pRootCause); } } //------------------------------------- /** * * Logs an error **/ public void logError (String pTemplate, Object pArg0, Object pArg1) throws ELException { if (isLoggingError ()) { logError (MessageFormat.format (pTemplate, new Object [] { "" + pArg0, "" + pArg1, })); } } //------------------------------------- /** * * Logs an error **/ public void logError (String pTemplate, Throwable pRootCause, Object pArg0, Object pArg1) throws ELException { if (isLoggingError ()) { logError (MessageFormat.format (pTemplate, new Object [] { "" + pArg0, "" + pArg1, }), pRootCause); } } //------------------------------------- /** * * Logs an error **/ public void logError (String pTemplate, Object pArg0, Object pArg1, Object pArg2) throws ELException { if (isLoggingError ()) { logError (MessageFormat.format (pTemplate, new Object [] { "" + pArg0, "" + pArg1, "" + pArg2, })); } } //------------------------------------- /** * * Logs an error **/ public void logError (String pTemplate, Throwable pRootCause, Object pArg0, Object pArg1, Object pArg2) throws ELException { if (isLoggingError ()) { logError (MessageFormat.format (pTemplate, new Object [] { "" + pArg0, "" + pArg1, "" + pArg2, }), pRootCause); } } //------------------------------------- /** * * Logs an error **/ public void logError (String pTemplate, Object pArg0, Object pArg1, Object pArg2, Object pArg3) throws ELException { if (isLoggingError ()) { logError (MessageFormat.format (pTemplate, new Object [] { "" + pArg0, "" + pArg1, "" + pArg2, "" + pArg3, })); } } //------------------------------------- /** * * Logs an error **/ public void logError (String pTemplate, Throwable pRootCause, Object pArg0, Object pArg1, Object pArg2, Object pArg3) throws ELException { if (isLoggingError ()) { logError (MessageFormat.format (pTemplate, new Object [] { "" + pArg0, "" + pArg1, "" + pArg2, "" + pArg3, }), pRootCause); } } //------------------------------------- /** * * Logs an error **/ public void logError (String pTemplate, Object pArg0, Object pArg1, Object pArg2, Object pArg3, Object pArg4) throws ELException { if (isLoggingError ()) { logError (MessageFormat.format (pTemplate, new Object [] { "" + pArg0, "" + pArg1, "" + pArg2, "" + pArg3, "" + pArg4, })); } } //------------------------------------- /** * * Logs an error **/ public void logError (String pTemplate, Throwable pRootCause, Object pArg0, Object pArg1, Object pArg2, Object pArg3, Object pArg4) throws ELException { if (isLoggingError ()) { logError (MessageFormat.format (pTemplate, new Object [] { "" + pArg0, "" + pArg1, "" + pArg2, "" + pArg3, "" + pArg4, }), pRootCause); } } //------------------------------------- /** * * Logs an error **/ public void logError (String pTemplate, Object pArg0, Object pArg1, Object pArg2, Object pArg3, Object pArg4, Object pArg5) throws ELException { if (isLoggingError ()) { logError (MessageFormat.format (pTemplate, new Object [] { "" + pArg0, "" + pArg1, "" + pArg2, "" + pArg3, "" + pArg4, "" + pArg5, })); } } //------------------------------------- /** * * Logs an error **/ public void logError (String pTemplate, Throwable pRootCause, Object pArg0, Object pArg1, Object pArg2, Object pArg3, Object pArg4, Object pArg5) throws ELException { if (isLoggingError ()) { logError (MessageFormat.format (pTemplate, new Object [] { "" + pArg0, "" + pArg1, "" + pArg2, "" + pArg3, "" + pArg4, "" + pArg5, }), pRootCause); } } //------------------------------------- }