cvs commit: jakarta-tomcat/src/share/org/apache/tomcat/logging DefaultLogger.java

[al...@locus.apache.org]

alex        00/07/10 21:05:03

  Added:       src/share/org/apache/tomcat/logging DefaultLogger.java
  Log:
  Trivial logger that sends all messages to the default sink.
  
  Revision  Changes    Path
  1.1                  jakarta-tomcat/src/share/org/apache/tomcat/logging/DefaultLogger.java
  
  Index: DefaultLogger.java
  ===================================================================
  /*
   * ====================================================================
   * 
   * 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
   * <http://www.apache.org/>.
   *
   */ 
  package org.apache.tomcat.logging;
  
  import java.io.Writer;
  import java.io.IOException;
  
  /**
   * Trivial logger that sends all messages to the default sink.  To
   * change default sink, call Logger.setDefaultSink(Writer)
   *
   * @author Alex Chaffee (alex@jguru.com)
   * @since  Tomcat 3.1
   **/
  public class DefaultLogger extends Logger {
  
      static private char[] newline;
      static {
  	String separator = System.getProperty("line.separator", "\n");
  	newline = separator.toCharArray();
      }
      
      /**
       * Prints log message to default sink
       * 
       * @param	message		the message to log.
       */
      protected void realLog(String message) {
  	try {
  	    defaultSink.write(message);
  	    defaultSink.write(newline);
  	    flush();
  	}
  	catch (IOException e) {
  	    bad(e, message, null);
  	}
      }
      
      /**
       * Prints log message to default sink
       * 
       * @param	message		the message to log.
       * @param	t		the exception that was thrown.
       */
      protected void realLog(String message, Throwable t) {
  	try {
  	    defaultSink.write(message);
  	    defaultSink.write(newline);
  	    defaultSink.write(throwableToString(t));
  	    defaultSink.write(newline);
  	    flush();
  	}
  	catch (IOException e) {
  	    bad(e, message, t);
  	}
      }
  
      private void bad(Throwable t1, String message, Throwable t2)
      {
  	System.err.println("Default sink is unwritable! Reason:");
  	if (t1 != null) t1.printStackTrace();
  	if (message != null) System.err.println(message);
  	if (t2 != null) t2.printStackTrace();
      }	
      
      /**
       * Flush the log. 
       */
      public void flush() {
  	try {
  	    defaultSink.flush();
  	}
  	catch (IOException e) {
  	}
      }    
  }