secureswitools/swisistools/source/xmlparser/xerces/include/xercesc/util/XMLEntityResolver.hpp
changeset 0 ba25891c3a9e
child 1 c42dffbd5b4f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/secureswitools/swisistools/source/xmlparser/xerces/include/xercesc/util/XMLEntityResolver.hpp	Thu Dec 17 08:51:10 2009 +0200
@@ -0,0 +1,194 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: 
+*
+*/
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * $Id: XMLEntityResolver.hpp 568078 2007-08-21 11:43:25Z amassari $
+ */
+
+#ifndef XMLENTITYRESOLVER_HPP
+#define XMLENTITYRESOLVER_HPP
+
+#include <xercesc/util/XercesDefs.hpp>
+#include <xercesc/util/XMemory.hpp>
+#include <xercesc/util/XMLResourceIdentifier.hpp>
+
+XERCES_CPP_NAMESPACE_BEGIN
+
+class InputSource;
+
+/**
+  * Revised interface for resolving entities.
+  *
+  * <p>If an application needs to implement customized handling
+  * for external entities, it can implement this interface and
+  * register an instance with the parser using the parser's
+  * setXMLEntityResolver method or it can use the basic SAX interface 
+  * (EntityResolver).  The difference between the two interfaces is
+  * the arguments to the resolveEntity() method.  With the SAX
+  * EntityResolve the arguments are systemId and publicId.  With this
+  * interface the argument is a XMLResourceIdentifier object.  <i>Only
+  * one EntityResolver can be set using setEntityResolver() or 
+  * setXMLEntityResolver, if both are set the last one set is 
+  * used.</i></p>
+  *
+  * <p>The parser will then allow the application to intercept any
+  * external entities (including the external DTD subset and external
+  * parameter entities, if any) before including them.</p>
+  *
+  * <p>Many applications will not need to implement this interface,
+  * but it will be especially useful for applications that build
+  * XML documents from databases or other specialised input sources,
+  * or for applications that use URI types other than URLs.</p>
+  *
+  * <p>The following resolver would provide the application
+  * with a special character stream for the entity with the system
+  * identifier "http://www.myhost.com/today":</p>
+  *
+  *<code>
+  * #include <xercesc/util/XMLEntityResolver.hpp><br>
+  * #include <xercesc/sax/InputSource.hpp><br>
+  *<br>
+  *&nbsp;class MyResolver : public XMLEntityResolver {<br>
+  *&nbsp;&nbsp;public:<br>
+  *&nbsp;&nbsp;&nbsp;InputSource resolveEntity (XMLResourceIdentifier* xmlri);<br>
+  *&nbsp;&nbsp;&nbsp;...<br>
+  *&nbsp;&nbsp;};<br>
+  *<br>
+  *&nbsp;MyResolver::resolveEntity(XMLResourceIdentifier* xmlri) {<br>
+  *&nbsp;&nbsp;switch(xmlri->getResourceIdentifierType()) {<br>
+  *&nbsp;&nbsp;&nbsp;case XMLResourceIdentifier::SystemId:<br>
+  *&nbsp;&nbsp;&nbsp;&nbsp;if (XMLString::compareString(xmlri->getSystemId(), "http://www.myhost.com/today")) {<br>
+  *&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;MyReader* reader = new MyReader();<br>
+  *&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return new InputSource(reader);<br>
+  *&nbsp;&nbsp;&nbsp;&nbsp;} else {<br>
+  *&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return null;<br>
+  *&nbsp;&nbsp;&nbsp;&nbsp;}<br>
+  *&nbsp;&nbsp;&nbsp;&nbsp;break;<br>
+  *&nbsp;&nbsp;&nbsp;default:<br>
+  *&nbsp;&nbsp;&nbsp;&nbsp;return null;<br>
+  *&nbsp;&nbsp;}<br>
+  *&nbsp;}</code>
+  *
+  * <p>The application can also use this interface to redirect system
+  * identifiers to local URIs or to look up replacements in a catalog
+  * (possibly by using the public identifier).</p>
+  *
+  * <p>The HandlerBase class implements the default behaviour for
+  * this interface, which is simply always to return null (to request
+  * that the parser use the default system identifier).</p>
+  *
+  * @see XMLResourceIdentifier
+  * @see Parser#setXMLEntityResolver
+  * @see InputSource#InputSource
+  * @see HandlerBase#HandlerBase
+  */
+class XMLUTIL_EXPORT XMLEntityResolver
+{
+public:
+    /** @name Constructors and Destructor */
+    //@{
+
+
+    /** Destructor */
+    virtual ~XMLEntityResolver()
+    {
+    }
+
+    //@}
+
+    /** @name The XMLEntityResolver interface */
+    //@{
+
+  /**
+    * Allow the application to resolve external entities.
+    *
+    * <p>The Parser will call this method before opening any external
+    * entity except the top-level document entity (including the
+    * external DTD subset, external entities referenced within the
+    * DTD, and external entities referenced within the document
+    * element): the application may request that the parser resolve
+    * the entity itself, that it use an alternative URI, or that it
+    * use an entirely different input source.</p>
+    *
+    * <p>Application writers can use this method to redirect external
+    * system identifiers to secure and/or local URIs, to look up
+    * public identifiers in a catalogue, or to read an entity from a
+    * database or other input source (including, for example, a dialog
+    * box).</p>
+    *
+    * <p>If the system identifier is a URL, the SAX parser must
+    * resolve it fully before reporting it to the application.</p>
+    *
+    * @param resourceIdentifier An object containing the type of
+    *        resource to be resolved and the associated data members
+    *        corresponding to this type.
+    * @return An InputSource object describing the new input source,
+    *         or null to request that the parser open a regular
+    *         URI connection to the system identifier.
+    *         The returned InputSource is owned by the parser which is
+    *         responsible to clean up the memory.
+    * @exception SAXException Any SAX exception, possibly
+    *            wrapping another exception.
+    * @exception IOException An IO exception,
+    *            possibly the result of creating a new InputStream
+    *            or Reader for the InputSource.
+    *
+    * @see InputSource#InputSource
+    * @see XMLResourceIdentifier
+    */
+    virtual InputSource* resolveEntity
+    (
+        XMLResourceIdentifier* resourceIdentifier
+    ) = 0;
+
+    //@}
+protected: 
+    /** Default Constructor */
+    XMLEntityResolver()
+    {
+    }
+
+private :
+    /* Unimplemented constructors and operators */
+
+    /* Copy constructor */
+    XMLEntityResolver(const XMLEntityResolver&);
+
+    /* Assignment operator */
+    XMLEntityResolver& operator=(const XMLEntityResolver&);
+
+};
+
+XERCES_CPP_NAMESPACE_END
+
+#endif