blautenb    2003/11/09 18:47:24

  Added:       c/src/transformers TXFMConcatChains.hpp TXFMConcatChains.cpp
  Log:
  New transformer to concatenate outputs of multiple piplines
  
  Revision  Changes    Path
  1.1                  xml-security/c/src/transformers/TXFMConcatChains.hpp
  
  Index: TXFMConcatChains.hpp
  ===================================================================
  /*
   * The Apache Software License, Version 1.1
   *
   *
   * Copyright (c) 2002-2003 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 "<WebSig>" 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 [EMAIL PROTECTED]
   *
   * 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) 2001, Institute for
   * Data Communications Systems, <http://www.nue.et-inf.uni-siegen.de/>.
   * The development of this software was partly funded by the European 
   * Commission in the <WebSig> project in the ISIS Programme. 
   * For more information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  
  /*
   * XSEC
   *
   * TXFMConcatChain := Takes multiple input chains and then provides
   *                                      BYTE_STREAM output for each chain in 
order.
   *
   * $Id: TXFMConcatChains.hpp,v 1.1 2003/11/10 02:47:24 blautenb Exp $
   *
   */
  
  #include <xsec/framework/XSECDefs.hpp>
  #include <xsec/transformers/TXFMBase.hpp>
  
  class TXFMChain;
  
  /**
   * \brief Transformer to handle concatination of transform chains
   * @ingroup internal
   */
  
  class DSIG_EXPORT TXFMConcatChains : public TXFMBase {
  
        #if defined(XSEC_NO_NAMESPACES)
        typedef vector<TXFMChain *>                     TXFMChainVectorType
  #else
        typedef std::vector<TXFMChain *>        TXFMChainVectorType;
  #endif
  
  #if defined(XSEC_SIZE_T_IN_NAMESPACE_STD)
        typedef std::size_t             size_type;
  #else
        typedef size_t                  size_type;
  #endif
  
  public:
  
        TXFMConcatChains(XERCES_CPP_NAMESPACE_QUALIFIER DOMDocument *doc);
        ~TXFMConcatChains();
  
        // Methods to set the inputs.  For the concat class, this will
        // append the input to the last appended chain
  
        void setInput(TXFMBase *newInput);
        void setInput(TXFMChain *newInputChain);
        
        // Methods to get tranform output type and input requirement
  
        virtual TXFMBase::ioType getInputType(void);
        virtual TXFMBase::ioType getOutputType(void);
        virtual TXFMBase::nodeType getNodeType(void);
  
        // Methods to get output data
  
        virtual unsigned int readBytes(XMLByte * const toFill, const unsigned 
int maxToFill);
        virtual XERCES_CPP_NAMESPACE_QUALIFIER DOMDocument *getDocument();
        virtual XERCES_CPP_NAMESPACE_QUALIFIER DOMNode *getFragmentNode();
        virtual const XMLCh * getFragmentId();
        
  private:
        TXFMConcatChains();
  
        TXFMChainVectorType                     m_chains;
        TXFMBase                                        * mp_currentTxfm;
        size_type                                       m_currentChain;
        bool                                            m_complete;
  };
  
  
  
  1.1                  xml-security/c/src/transformers/TXFMConcatChains.cpp
  
  Index: TXFMConcatChains.cpp
  ===================================================================
  /*
   * The Apache Software License, Version 1.1
   *
   *
   * Copyright (c) 2002-2003 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 "<WebSig>" 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 [EMAIL PROTECTED]
   *
   * 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) 2001, Institute for
   * Data Communications Systems, <http://www.nue.et-inf.uni-siegen.de/>.
   * The development of this software was partly funded by the European 
   * Commission in the <WebSig> project in the ISIS Programme. 
   * For more information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  
  /*
   * XSEC
   *
   * TXFMConcatChain := Takes multiple input chains and then provides
   *                                      BYTE_STREAM output for each chain in 
order.
   *
   * $Id: TXFMConcatChains.cpp,v 1.1 2003/11/10 02:47:24 blautenb Exp $
   *
   */
  
  #include <xsec/framework/XSECDefs.hpp>
  
  #include "TXFMConcatChains.hpp"
  
  #include <xsec/transformers/TXFMChain.hpp>
  #include <xsec/framework/XSECError.hpp>
  
  XERCES_CPP_NAMESPACE_USE
  
  TXFMConcatChains::TXFMConcatChains(DOMDocument *doc) : 
  TXFMBase(doc),
  mp_currentTxfm(NULL),
  m_currentChain(0),
  m_complete(false) {
  
  }
  
  TXFMConcatChains::~TXFMConcatChains() {
  
        size_type i, s;
        s = m_chains.size();
  
        for (i = 0; i < s; ++i)
                delete m_chains[i];
  
        m_chains.clear();
  
  }
  
  void TXFMConcatChains::setInput(TXFMBase *newInput) {
  
        size_type i = m_chains.size();
  
        if (i == 0) {
                throw XSECException(XSECException::TransformInputOutputFail,
                        "TXFMConcatChains::setInput - Cannot concatinate new 
base transform until at least one chain is added");
        }
  
        m_chains[i-1]->getLastTxfm()->setInput(newInput);
  
  }
  
  void TXFMConcatChains::setInput(TXFMChain *newInputChain) {
  
        m_chains.push_back(newInputChain);
  
  }
        
  TXFMBase::ioType TXFMConcatChains::getInputType(void) {
  
        return TXFMBase::BYTE_STREAM;
  
  }
  
  TXFMBase::ioType TXFMConcatChains::getOutputType(void) {
  
        return TXFMBase::BYTE_STREAM;
  
  }
  
  TXFMBase::nodeType TXFMConcatChains::getNodeType(void) {
  
        return TXFMBase::DOM_NODE_NONE;
  
  }
  
  // Methods to get output data
  
  unsigned int TXFMConcatChains::readBytes(XMLByte * const toFill, const 
unsigned int maxToFill) {
  
        if (m_complete == true)
                return 0;
  
        // Is this the first one?
        if (mp_currentTxfm == NULL) {
  
                if (m_chains.size() == 0) {
                        throw 
XSECException(XSECException::TransformInputOutputFail,
                                "TXFMConcatChains::readBytes - Cannot read 
bytes until chains added");
                }
  
                m_currentChain = 0;
                mp_currentTxfm = m_chains[m_currentChain]->getLastTxfm();
  
        }
  
        unsigned int bytesRead = 0;
        unsigned int lastBytesRead = 0;
  
        while (!m_complete && bytesRead < maxToFill) {
  
                lastBytesRead = mp_currentTxfm->readBytes(&toFill[bytesRead], 
maxToFill - bytesRead);
                if (lastBytesRead == 0) {
  
                        if (++m_currentChain == m_chains.size())
                                m_complete = true;
                        else
                                mp_currentTxfm = 
m_chains[m_currentChain]->getLastTxfm();
  
                }
                else {
                        bytesRead += lastBytesRead;
                }
  
        }
  
        return bytesRead;
  
  }
  
  DOMDocument *TXFMConcatChains::getDocument() {
  
        return NULL;
  
  }
  DOMNode *TXFMConcatChains::getFragmentNode() {
  
        return NULL;
  
  }
  
  const XMLCh * TXFMConcatChains::getFragmentId() {
  
        return NULL;
  
  }
        
  
  
  

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