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DSIGTransformXPathFilter.hpp

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00001 /*
00002  * The Apache Software License, Version 1.1
00003  *
00004  *
00005  * Copyright (c) 2002-2003 The Apache Software Foundation.  All rights 
00006  * reserved.
00007  *
00008  * Redistribution and use in source and binary forms, with or without
00009  * modification, are permitted provided that the following conditions
00010  * are met:
00011  *
00012  * 1. Redistributions of source code must retain the above copyright
00013  *    notice, this list of conditions and the following disclaimer. 
00014  *
00015  * 2. Redistributions in binary form must reproduce the above copyright
00016  *    notice, this list of conditions and the following disclaimer in
00017  *    the documentation and/or other materials provided with the
00018  *    distribution.
00019  *
00020  * 3. The end-user documentation included with the redistribution,
00021  *    if any, must include the following acknowledgment:  
00022  *       "This product includes software developed by the
00023  *        Apache Software Foundation (http://www.apache.org/)."
00024  *    Alternately, this acknowledgment may appear in the software itself,
00025  *    if and wherever such third-party acknowledgments normally appear.
00026  *
00027  * 4. The names "<WebSig>" and "Apache Software Foundation" must
00028  *    not be used to endorse or promote products derived from this
00029  *    software without prior written permission. For written 
00030  *    permission, please contact apache@apache.org.
00031  *
00032  * 5. Products derived from this software may not be called "Apache",
00033  *    nor may "Apache" appear in their name, without prior written
00034  *    permission of the Apache Software Foundation.
00035  *
00036  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
00037  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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00048  * ====================================================================
00049  *
00050  * This software consists of voluntary contributions made by many
00051  * individuals on behalf of the Apache Software Foundation and was
00052  * originally based on software copyright (c) 2001, Institute for
00053  * Data Communications Systems, <http://www.nue.et-inf.uni-siegen.de/>.
00054  * The development of this software was partly funded by the European 
00055  * Commission in the <WebSig> project in the ISIS Programme. 
00056  * For more information on the Apache Software Foundation, please see
00057  * <http://www.apache.org/>.
00058  */
00059 
00060 /*
00061  * XSEC
00062  *
00063  * DSIGTransformXPathFilter := Class that performs XPath Filter 
00064  *                             transforms
00065  *
00066  * Author(s): Berin Lautenbach
00067  *
00068  * $Id: DSIGTransformXPathFilter.hpp,v 1.3 2003/07/05 10:30:30 blautenb Exp $
00069  *
00070  */
00071 
00072 #ifndef DSIGTRANSFORMXPATHFILTER_INCLUDE
00073 #define DSIGTRANSFORMXPATHFILTER_INCLUDE
00074 
00075 #include <xsec/dsig/DSIGTransform.hpp>
00076 #include <xsec/utils/XSECSafeBuffer.hpp>
00077 
00078 
00079 XSEC_DECLARE_XERCES_CLASS(DOMNamedNodeMap);
00080 XSEC_DECLARE_XERCES_CLASS(DOMNode);
00081 
00082 #include <vector>
00083 
00084 class DSIGXPathFilterExpr;
00085 
00102 class DSIG_EXPORT DSIGTransformXPathFilter : public DSIGTransform {
00103 
00104 
00105 public:
00106 
00111     typedef std::vector<DSIGXPathFilterExpr *> exprVectorType;
00112 
00115     
00126     DSIGTransformXPathFilter(DSIGSignature *sig, DOMNode * node);
00127 
00140     DSIGTransformXPathFilter(DSIGSignature *sig);
00141           
00150     virtual ~DSIGTransformXPathFilter();
00151     
00153 
00157 
00165     virtual transformType getTransformType();
00166 
00176     virtual void appendTransformer(TXFMChain * input);
00177 
00185     virtual DOMElement * createBlankTransform(DOMDocument * parentDoc);
00186 
00194     virtual void load(void);
00195 
00197 
00201 
00213     DSIGXPathFilterExpr * appendFilter(xpathFilterType filterType,
00214                                         const XMLCh * filterExpr);
00215 
00225     unsigned int getExprNum(void);
00226 
00237     DSIGXPathFilterExpr * expr(unsigned int n);
00238 
00240     
00241 private:
00242 
00243     DSIGTransformXPathFilter();
00244     DSIGTransformXPathFilter(const DSIGTransformXPathFilter & theOther);
00245 
00246     bool                        m_loaded;
00247 
00248     // The expressions
00249     exprVectorType              m_exprs;
00250 
00251 
00252 };
00253 
00254 #endif /* DSIGTRANSFORMXPATHFILTER_INCLUDE */

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