samples/DOMPrint/DOMTreeErrorReporter.hpp

/*
 * 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: DOMTreeErrorReporter.hpp 568078 2007-08-21 11:43:25Z amassari $
 */

#include <xercesc/util/XercesDefs.hpp>
#include <xercesc/sax/ErrorHandler.hpp>
#if defined(XERCES_NEW_IOSTREAMS)
#include <iostream>
#else
#include <iostream.h>
#endif


XERCES_CPP_NAMESPACE_USE


class DOMTreeErrorReporter : public ErrorHandler
{
public:
    // -----------------------------------------------------------------------
    //  Constructors and Destructor
    // -----------------------------------------------------------------------
    DOMTreeErrorReporter() :
       fSawErrors(false)
    {
    }

    ~DOMTreeErrorReporter()
    {
    }


    // -----------------------------------------------------------------------
    //  Implementation of the error handler interface
    // -----------------------------------------------------------------------
    void warning(const SAXParseException& toCatch);
    void error(const SAXParseException& toCatch);
    void fatalError(const SAXParseException& toCatch);
    void resetErrors();

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

    // -----------------------------------------------------------------------
    //  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;
};

inline bool DOMTreeErrorReporter::getSawErrors() const
{
    return 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;
}