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Posted to commits@xalan.apache.org by cu...@locus.apache.org on 2000/12/21 15:18:49 UTC

cvs commit: xml-xalan/test/java/src/org/apache/qetest/xsl LoggingContentHandler.java

curcuru     00/12/21 06:18:48

  Added:       test/java/src/org/apache/qetest/xsl
                        LoggingContentHandler.java
  Log:
  Simple ContentHandler implementation that logs to a Reporter
  
  Revision  Changes    Path
  1.1                  xml-xalan/test/java/src/org/apache/qetest/xsl/LoggingContentHandler.java
  
  Index: LoggingContentHandler.java
  ===================================================================
  /*
   * The Apache Software License, Version 1.1
   *
   *
   * Copyright (c) 2000 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 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 "Xalan" 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 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 (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 and was
   * originally based on software copyright (c) 2000, Lotus
   * Development Corporation., http://www.lotus.com.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  
  /*
   *
   * LoggingContentHandler.java
   *
   */
  package org.apache.qetest.xsl;
  
  import org.apache.qetest.*;
  import java.io.IOException;
  
  import org.xml.sax.Attributes;
  import org.xml.sax.ContentHandler;
  import org.xml.sax.EntityResolver;
  import org.xml.sax.InputSource;
  import org.xml.sax.Locator;
  import org.xml.sax.SAXException;
  
  /**
   * Cheap-o ContentHandler for use by API tests.
   * <p>Implements ContentHandler and dumps simplistic info 
   * everything to a Reporter; a way to debug SAX stuff.</p>
   * @author shane_curcuru@lotus.com
   * @version $Id: LoggingContentHandler.java,v 1.1 2000/12/21 14:18:48 curcuru Exp $
   */
  public class LoggingContentHandler implements ContentHandler
  {
  
      /** No-op ctor seems useful. */
      public LoggingContentHandler(){}
  
      /**
       * Ctor that calls setReporter automatically.  
       *
       * @param r Reporter we should log to
       * @todo this should really be a Logger, not Reporter
       */
      public LoggingContentHandler(Reporter r)
      {
          setReporter(r);
      }
  
      /** 
       * Our Reporter, who we tell all our secrets to.  
       * Could/Should be switched to be a Logger.  
       */
      private Reporter reporter;
  
      /**
       * Accesor methods for our Reporter.  
       * @param r Reporter to set
       */
      public void setReporter(Reporter r)
      {
          if (r != null)
              reporter = r;
      }
  
      /**
       * Accesor methods for our Reporter.  
       * @return Reporter we use
       */
      public Reporter getReporter()
      {
          return (reporter);
      }
  
      /** Prefixed to all reporter msg output.  */
      private final String prefix = "LCH:";
  
      /** Cheap-o string representation of last event we got.  */
      private String lastEvent = null;
  
      /**
       * Method setLastEvent set our lastEvent field.
       * @param s string to set
       */
      protected void setLastEvent(String s)
      {
          lastEvent = s;
      }
  
      /**
       * Accessor for string representation of last event we got.  
       * @return last event string we had
       */
      public String getLastEvent()
      {
          return lastEvent;
      }
  
      /** What loggingLevel to use for reporter.logMsg(). */
      private int level = Reporter.DEFAULT_LOGGINGLEVEL;
  
      /**
       * Accesor methods; don't think it needs to be synchronized.  
       * @param l loggingLevel for us to use
       */
      public void setLoggingLevel(int l)
      {
          level = l;
      }
  
      /**
       * Accesor methods; don't think it needs to be synchronized.  
       * @return loggingLevel we use
       */
      public int getLoggingLevel()
      {
          return level;
      }
  
      /** How many characters to report from characters event.  */
      private int charLimit = 30;
  
      /**
       * How many characters to report from characters event.  
       * @param l charLimit for us to use
       */
      public void setCharLimit(int l)
      {
          charLimit = l;
      }
  
      /**
       * How many characters to report from characters event.  
       * @return charLimit we use
       */
      public int getCharLimit()
      {
          return charLimit;
      }
  
  
      ////////////////// Implement ContentHandler ////////////////// 
      public void setDocumentLocator (Locator locator)
      {
          // Note: this implies this class is !not! threadsafe
          setLastEvent("setDocumentLocator");
          reporter.logMsg(level, getLastEvent());
      }
  
  
      public void startDocument ()
          throws SAXException
      {
          setLastEvent("startDocument");
          reporter.logMsg(level, getLastEvent());
      }
  
  
      public void endDocument()
          throws SAXException
      {
          setLastEvent("endDocument");
          reporter.logMsg(level, getLastEvent());
      }
  
  
      public void startPrefixMapping (String prefix, String uri)
          throws SAXException
      {
          setLastEvent("startPrefixMapping: " + prefix + ", " + uri);
          reporter.logMsg(level, getLastEvent());
      }
  
  
      public void endPrefixMapping (String prefix)
          throws SAXException
      {
          setLastEvent("endPrefixMapping: " + prefix);
          reporter.logMsg(level, getLastEvent());
      }
  
  
      public void startElement (String namespaceURI, String localName,
                                                          String qName, Attributes atts)
          throws SAXException
      {
          StringBuffer buf = new StringBuffer();
          buf.append("startElement: " + namespaceURI + ", " 
                     + namespaceURI + ", " + qName);
                     
          int n = atts.getLength();
          for(int i = 0; i < n; i++)
          {
              buf.append(", " + atts.getQName(i));
          }
          setLastEvent(buf.toString());
          reporter.logMsg(level, getLastEvent());
      }
  
  
      public void endElement (String namespaceURI, String localName, String qName)
          throws SAXException
      {
          setLastEvent("endElement: " + namespaceURI + ", " + namespaceURI + ", " + qName);
          reporter.logMsg(level, getLastEvent());
      }
  
  
      public void characters (char ch[], int start, int length)
          throws SAXException
      {
          String s = new String(ch, start, (length > charLimit) ? charLimit : length);
          if(length > charLimit)
              setLastEvent("characters: \"" + s + "\"...");
          else
              setLastEvent("characters: \"" + s + "\"");
          reporter.logMsg(level, getLastEvent());
      }
  
  
      public void ignorableWhitespace (char ch[], int start, int length)
          throws SAXException
      {
          setLastEvent("ignorableWhitespace: len " + length);
          reporter.logMsg(level, getLastEvent());
      }
  
  
      public void processingInstruction (String target, String data)
          throws SAXException
      {
          setLastEvent("processingInstruction: " + target + ", " + data);
          reporter.logMsg(level, getLastEvent());
      }
  
  
      public void skippedEntity (String name)
          throws SAXException
      {
          setLastEvent("skippedEntity: " + name);
          reporter.logMsg(level, getLastEvent());
      }
  
  }