cvs commit: xml-xalan/c/src/XALANTRANSFORMER XalanTransformerOutputStream.cpp

[au...@apache.org]

auriemma    01/01/31 06:44:03

  Added:       c/src/XALANTRANSFORMER XalanTransformerOutputStream.cpp
  Log:
  New file used to implement a class for output to a user define (callback) function.
  
  Revision  Changes    Path
  1.1                  xml-xalan/c/src/XALANTRANSFORMER/XalanTransformerOutputStream.cpp
  
  Index: XalanTransformerOutputStream.cpp
  ===================================================================
  /*
   * 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) 1999, International
   * Business Machines, Inc., http://www.ibm.com.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  #include <XalanTransformer/XalanTransformerOutputStream.hpp>
  
  
  
  XalanTransformerOutputStream::XalanTransformerOutputStream(
  	const void*					theOutputHandle, 
  	XalanOutputHandlerType		theOutputHandler):
  	m_outputHandle(theOutputHandle),
  	m_outputHandler(theOutputHandler)
  {
  }
  
  
  
  XalanTransformerOutputStream::~XalanTransformerOutputStream()
  {
  }
  
  
  
  void
  XalanTransformerOutputStream::doFlush()
  {
  	// Not implemented
  }
  
  
  
  void
  XalanTransformerOutputStream::writeData(
  			const char*		theBuffer,
  			unsigned long	theBufferLength)
  {
  	const size_t theBytesWritten = m_outputHandler(theBuffer, theBufferLength, m_outputHandle);		
  
  	// We validate that the number of bytes written equals the number of bytes sent to output handler.
  	// Otherwise we will stop processing  and throw and exception thus allow the callback alert us of 
  	// memory allocation issues or buffer overflows, all at the expense of confusing most people.
  	if(theBytesWritten != theBufferLength)
  	{
  		throw XalanOutputStreamException(
  			TranscodeFromLocalCodePage("Number of bytes written does not equal number of bytes sent!"),
  			TranscodeFromLocalCodePage("UnknownOutputHandlerException"));
  	}
  }