/*
 * 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: XInclude.hpp 513675 2007-03-02 09:22:55Z amassari $
 */

// ---------------------------------------------------------------------------
//  Includes
// ---------------------------------------------------------------------------
#include <xercesc/dom/DOMErrorHandler.hpp>
#include <xercesc/util/XMLString.hpp>

#if defined(XERCES_NEW_IOSTREAMS)
#include <iostream>
#else
#include <iostream.h>
#endif

XERCES_CPP_NAMESPACE_USE

// ---------------------------------------------------------------------------
//  Simple error handler deriviative to install on parser
// ---------------------------------------------------------------------------
class XIncludeErrorHandler : public DOMErrorHandler
{
public:
    // -----------------------------------------------------------------------
    //  Constructors and Destructor
    // -----------------------------------------------------------------------
    XIncludeErrorHandler();
    ~XIncludeErrorHandler();


    // -----------------------------------------------------------------------
    //  Getter methods
    // -----------------------------------------------------------------------
    bool getSawErrors() const;


    // -----------------------------------------------------------------------
    //  Implementation of the DOM ErrorHandler interface
    // -----------------------------------------------------------------------
    bool handleError(const DOMError& domError);
    void resetErrors();


private :
    // -----------------------------------------------------------------------
    //  Unimplemented constructors and operators
    // -----------------------------------------------------------------------
    XIncludeErrorHandler(const XIncludeErrorHandler&);
    void operator=(const XIncludeErrorHandler&);


    // -----------------------------------------------------------------------
    //  Private data members
    //
    //  fSawErrors
    //      This is set if we get any errors, and is queryable via a getter
    //      method. Its used by the main code to suppress output if there are
    //      errors.
    // -----------------------------------------------------------------------
    bool    fSawErrors;
};


// ---------------------------------------------------------------------------
//  This is a simple class that lets us do easy (though not terribly efficient)
//  trancoding of XMLCh data to local code page for display.
// ---------------------------------------------------------------------------
class StrX
{
public :
    // -----------------------------------------------------------------------
    //  Constructors and Destructor
    // -----------------------------------------------------------------------
    StrX(const XMLCh* const toTranscode)
    {
        // Call the private transcoding method
        fLocalForm = XMLString::transcode(toTranscode);
    }

    ~StrX()
    {
        XMLString::release(&fLocalForm);
    } 


    // -----------------------------------------------------------------------
    //  Getter methods
    // -----------------------------------------------------------------------
    const char* localForm() const
    {
        return fLocalForm;
    }

private :
    // -----------------------------------------------------------------------
    //  Private data members
    //
    //  fLocalForm
    //      This is the local code page form of the string.
    // -----------------------------------------------------------------------
    char*   fLocalForm;
};

inline XERCES_STD_QUALIFIER ostream& operator<<(XERCES_STD_QUALIFIER ostream& target, const StrX& toDump)
{
    target << toDump.localForm();
    return target;
}

inline bool XIncludeErrorHandler::getSawErrors() const
{
    return fSawErrors;
}