cocoon-cvs mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From br...@apache.org
Subject cvs commit: cocoon-2.1/src/java/org/apache/cocoon/xml SaxBuffer.java
Date Thu, 13 Nov 2003 13:14:50 GMT
bruno       2003/11/13 05:14:50

  Added:       src/java/org/apache/cocoon/xml SaxBuffer.java
  Log:
  initial commit
  
  Revision  Changes    Path
  1.1                  cocoon-2.1/src/java/org/apache/cocoon/xml/SaxBuffer.java
  
  Index: SaxBuffer.java
  ===================================================================
  /*
  
   ============================================================================
                     The Apache Software License, Version 1.1
   ============================================================================
  
   Copyright (C) 1999-2003 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 "Apache Cocoon" 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 (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 and was  originally created by
   Stefano Mazzocchi  <stefano@apache.org>. For more  information on the Apache
   Software Foundation, please see <http://www.apache.org/>.
  
  */
  package org.apache.cocoon.xml;
  
  import org.xml.sax.ContentHandler;
  import org.xml.sax.SAXException;
  import org.xml.sax.Locator;
  import org.xml.sax.Attributes;
  import org.xml.sax.ext.LexicalHandler;
  import org.apache.excalibur.xml.sax.XMLizable;
  
  import java.util.ArrayList;
  import java.util.Iterator;
  
  /**
   * A class that can record SAX events and replay them later.
   *
   * <p>Compared to XMLByteStreamCompiler, this class is many times faster at sending
out the recorded
   * SAX events since it doesn't need to convert between byte and char representations etc.
   * On the other hand, its data structure is more complex then a simple byte array,
   * making XMLByteStreamCompiler better in case the recorded SAX should be stored long-term.
   *
   * <p>Use this class if you need to frequently generate smaller amounts of SAX events,
   * or replay a set of recorded start events immediately.
   *
   * <p>Both ContentHandler and LexicalHandler are supported, the only exception is
   * that the setDocumentLocator event is not recorded.
   */
  public class SaxBuffer implements ContentHandler, LexicalHandler, XMLizable {
      private ArrayList saxbits = new ArrayList();
  
      public void skippedEntity(String name) throws SAXException {
          saxbits.add(new SkippedEntity(name));
      }
  
      public void setDocumentLocator(Locator locator) {
          //don't record this event
      }
  
      public void ignorableWhitespace(char ch[], int start, int length) throws SAXException
{
          saxbits.add(new IgnorableWhitespace(ch, start, length));
      }
  
      public void processingInstruction(String target, String data) throws SAXException {
          saxbits.add(new PI(target, data));
      }
  
      public void startDocument() throws SAXException {
          saxbits.add(new StartDocument());
      }
  
      public void startElement(String namespaceURI, String localName, String qName, Attributes
atts) throws SAXException {
          saxbits.add(new StartElement(namespaceURI, localName, qName, atts));
      }
  
      public void endPrefixMapping(String prefix) throws SAXException {
          saxbits.add(new EndPrefixMapping(prefix));
      }
  
      public void characters(char ch[], int start, int length) throws SAXException {
          saxbits.add(new Characters(ch, start, length));
      }
  
      public void endElement(String namespaceURI, String localName, String qName) throws SAXException
{
          saxbits.add(new EndElement(namespaceURI, localName, qName));
      }
  
      public void endDocument() throws SAXException {
          saxbits.add(new EndDocument());
      }
  
      public void startPrefixMapping(String prefix, String uri) throws SAXException {
          saxbits.add(new StartPrefixMapping(prefix, uri));
      }
  
      public void endCDATA() throws SAXException {
          saxbits.add(new EndCDATA());
      }
  
      public void comment(char ch[], int start, int length) throws SAXException {
          saxbits.add(new Comment(ch, start, length));
      }
  
      public void startEntity(String name) throws SAXException {
          saxbits.add(new StartEntity(name));
      }
  
      public void endDTD() throws SAXException {
          saxbits.add(new EndDTD());
      }
  
      public void startDTD(String name, String publicId, String systemId) throws SAXException
{
          saxbits.add(new StartDTD(name, publicId, systemId));
      }
  
      public void startCDATA() throws SAXException {
          saxbits.add(new StartCDATA());
      }
  
      public void endEntity(String name) throws SAXException {
          saxbits.add(new EndEntity(name));
      }
  
      public void toSAX(ContentHandler contentHandler) throws SAXException {
          Iterator saxbitsIt = saxbits.iterator();
          while (saxbitsIt.hasNext()) {
              SaxBit saxbit = (SaxBit)saxbitsIt.next();
              saxbit.send(contentHandler);
          }
      }
  
      interface SaxBit {
          public void send(ContentHandler contentHandler) throws SAXException;
      }
  
      final class PI implements SaxBit {
          private final String target;
          private final String data;
  
          public PI(String target, String data) {
              this.target = target;
              this.data = data;
          }
  
          public void send(ContentHandler contentHandler) throws SAXException {
              contentHandler.processingInstruction(target, data);
          }
      }
  
      final class StartElement implements SaxBit {
          private final String namespaceURI;
          private final String localName;
          private final String qName;
          private final Attributes attrs;
  
          public StartElement(String namespaceURI, String localName, String qName, Attributes
attrs) {
              this.namespaceURI = namespaceURI;
              this.localName = localName;
              this.qName = qName;
              this.attrs = attrs;
          }
  
          public void send(ContentHandler contentHandler) throws SAXException {
              contentHandler.startElement(namespaceURI, localName, qName, attrs);
          }
      }
  
      final class EndPrefixMapping implements SaxBit {
          private final String prefix;
  
          public EndPrefixMapping(String prefix) {
              this.prefix = prefix;
          }
  
          public void send(ContentHandler contentHandler) throws SAXException {
              contentHandler.endPrefixMapping(prefix);
          }
      }
  
      final class Characters implements SaxBit {
          private final char[] ch;
  
          public Characters(char[] ch, int start, int length) {
              // make a copy so that we don't hold references to a potentially large array
we don't control
              this.ch = new char[length];
              System.arraycopy(ch, start, this.ch, 0, length);
          }
  
          public void send(ContentHandler contentHandler) throws SAXException {
              contentHandler.characters(ch, 0, ch.length);
          }
      }
  
      final class EndElement implements SaxBit {
          private final String namespaceURI;
          private final String localName;
          private final String qName;
  
          public EndElement(String namespaceURI, String localName, String qName) {
              this.namespaceURI = namespaceURI;
              this.localName = localName;
              this.qName = qName;
          }
  
          public void send(ContentHandler contentHandler) throws SAXException {
              contentHandler.endElement(namespaceURI, localName, qName);
          }
      }
  
      final class EndDocument implements SaxBit {
          public void send(ContentHandler contentHandler) throws SAXException {
              contentHandler.endDocument();
          }
      }
  
      final class StartPrefixMapping implements SaxBit {
          private final String prefix;
          private final String uri;
  
          public StartPrefixMapping(String prefix, String uri) {
              this.prefix = prefix;
              this.uri = uri;
          }
  
          public void send(ContentHandler contentHandler) throws SAXException {
              contentHandler.startPrefixMapping(prefix, uri);
          }
      }
  
      final class Comment implements SaxBit {
          private final char[] ch;
  
          public Comment(char[] ch, int start, int length) {
              // make a copy so that we don't hold references to a potentially large array
we don't control
              this.ch = new char[length];
              System.arraycopy(ch, start, this.ch, 0, length);
          }
  
          public void send(ContentHandler contentHandler) throws SAXException {
              if (contentHandler instanceof LexicalHandler)
                  ((LexicalHandler)contentHandler).comment(ch, 0, ch.length);
          }
      }
  
      final class StartCDATA implements SaxBit {
          public void send(ContentHandler contentHandler) throws SAXException {
              if (contentHandler instanceof LexicalHandler)
                  ((LexicalHandler)contentHandler).startCDATA();
          }
      }
  
      final class EndCDATA implements SaxBit {
          public void send(ContentHandler contentHandler) throws SAXException {
              if (contentHandler instanceof LexicalHandler)
                  ((LexicalHandler)contentHandler).endCDATA();
          }
      }
  
      final class SkippedEntity implements SaxBit {
          private final String name;
  
          public SkippedEntity(String name) {
              this.name = name;
          }
  
          public void send(ContentHandler contentHandler) throws SAXException {
              contentHandler.skippedEntity(name);
          }
      }
  
      final class IgnorableWhitespace implements SaxBit {
          private final char[] ch;
  
          public IgnorableWhitespace(char[] ch, int start, int length) {
              // make a copy so that we don't hold references to a potentially large array
we don't control
              this.ch = new char[length];
              System.arraycopy(ch, start, this.ch, 0, length);
          }
  
          public void send(ContentHandler contentHandler) throws SAXException {
              contentHandler.ignorableWhitespace(ch, 0, ch.length);
          }
      }
  
      final class StartDocument implements SaxBit {
          public void send(ContentHandler contentHandler) throws SAXException {
              contentHandler.startDocument();
          }
      }
  
      final class StartDTD implements SaxBit {
          private final String name;
          private final String publicId;
          private final String systemId;
  
          public StartDTD(String name, String publicId, String systemId) {
              this.name = name;
              this.publicId = publicId;
              this.systemId = systemId;
          }
  
          public void send(ContentHandler contentHandler) throws SAXException {
              if (contentHandler instanceof LexicalHandler)
                  ((LexicalHandler)contentHandler).startDTD(name, publicId, systemId);
          }
      }
  
      final class EndDTD implements SaxBit {
          public void send(ContentHandler contentHandler) throws SAXException {
              if (contentHandler instanceof LexicalHandler)
                  ((LexicalHandler)contentHandler).endDTD();
          }
      }
  
      final class StartEntity implements SaxBit {
          private final String name;
  
          public StartEntity(String name) {
              this.name = name;
          }
  
          public void send(ContentHandler contentHandler) throws SAXException {
              if (contentHandler instanceof LexicalHandler)
                  ((LexicalHandler)contentHandler).startEntity(name);
          }
      }
  
      final class EndEntity implements SaxBit {
          private final String name;
  
          public EndEntity(String name) {
              this.name = name;
          }
  
          public void send(ContentHandler contentHandler) throws SAXException {
              if (contentHandler instanceof LexicalHandler)
                  ((LexicalHandler)contentHandler).endEntity(name);
          }
      }
  }
  
  
  

Mime
View raw message