/*
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 1999-2001 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 "Xerces" 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 apache\@apache.org.
 *
 * 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) 1999, International
 * Business Machines, Inc., http://www.ibm.com .  For more information
 * on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */

/*
 * $Log: StdInParse.cpp,v $
 * Revision 1.14  2003/05/16 15:32:12  knoaman
 * Change scope of 'src' so that it's deallocated properly.
 *
 * Revision 1.13  2002/02/01 22:41:37  peiyongz
 * sane_include
 *
 * Revision 1.12  2001/10/25 15:18:33  tng
 * delete the parser before XMLPlatformUtils::Terminate.
 *
 * Revision 1.11  2001/10/19 19:02:43  tng
 * [Bug 3909] return non-zero an exit code when error was encounted.
 * And other modification for consistent help display and return code across samples.
 *
 * Revision 1.10  2001/08/01 19:11:01  tng
 * Add full schema constraint checking flag to the samples and the parser.
 *
 * Revision 1.9  2001/05/11 13:24:59  tng
 * Copyright update.
 *
 * Revision 1.8  2001/05/03 16:00:32  tng
 * Schema: samples update with schema
 *
 * Revision 1.7  2001/02/22 20:59:57  tng
 * [Bug 678] StdInParse doesn't output filename or duration
 *
 * Revision 1.6  2000/06/20 02:23:10  rahulj
 * Help message added by Joe Polastre.
 *
 * Revision 1.5  2000/03/02 19:53:50  roddey
 * This checkin includes many changes done while waiting for the
 * 1.1.0 code to be finished. I can't list them all here, but a list is
 * available elsewhere.
 *
 * Revision 1.4  2000/02/11 02:40:58  abagchi
 * Removed StrX::transcode
 *
 * Revision 1.3  2000/02/06 07:47:25  rahulj
 * Year 2K copyright swat.
 *
 * Revision 1.2  2000/01/12 00:27:01  roddey
 * Updates to work with the new URL and input source scheme.
 *
 * Revision 1.1.1.1  1999/11/09 01:09:27  twl
 * Initial checkin
 *
 * Revision 1.5  1999/11/08 20:43:43  rahul
 * Swat for adding in Product name and CVS comment log variable.
 *
 */


// ---------------------------------------------------------------------------
//  Includes
// ---------------------------------------------------------------------------
#include <xercesc/framework/StdInInputSource.hpp>
#include <xercesc/parsers/SAXParser.hpp>
#include "StdInParse.hpp"


// ---------------------------------------------------------------------------
//  Local data
//
//  doNamespaces
//      Indicates whether namespace processing should be enabled or not.
//      The default is no, but -n overrides that.
//
//  doSchema
//      Indicates whether schema processing should be enabled or not.
//      The default is no, but -s overrides that.
//
//  schemaFullChecking
//      Indicates whether full schema constraint checking should be enabled or not.
//      The default is no, but -s overrides that.
//
//  valScheme
//      Indicates what validation scheme to use. It defaults to 'auto', but
//      can be set via the -v= command.
// ---------------------------------------------------------------------------
static bool     doNamespaces       = false;
static bool     doSchema           = false;
static bool     schemaFullChecking = false;
static SAXParser::ValSchemes    valScheme       = SAXParser::Val_Auto;



// ---------------------------------------------------------------------------
//  Local helper methods
// ---------------------------------------------------------------------------
void usage()
{
    cout << "\nUsage:\n"
            "    StdInParse [options] < <XML file>\n\n"
            "This program demonstrates streaming XML data from standard\n"
            "input.  It then uses the SAX Parser, and prints the\n"
            "number of elements, attributes, spaces and characters found\n"
            "in the input, using SAX API.\n\n"
            "Options:\n"
            "    -v=xxx      Validation scheme [always | never | auto*].\n"
            "    -n          Enable namespace processing. Defaults to off.\n"
            "    -s          Enable schema processing. Defaults to off.\n"
            "    -f          Enable full schema constraint checking. Defaults to off.\n"
		      "    -?          Show this help.\n\n"
            "  * = Default if not provided explicitly.\n"
         << endl;
}


// ---------------------------------------------------------------------------
//  Program entry point
// ---------------------------------------------------------------------------
int main(int argC, char* argV[])
{
    // Initialize the XML4C system
    try
    {
         XMLPlatformUtils::Initialize();
    }

    catch (const XMLException& toCatch)
    {
         cerr << "Error during initialization! Message:\n"
              << StrX(toCatch.getMessage()) << endl;
         return 1;
    }

    int parmInd;
    for (parmInd = 1; parmInd < argC; parmInd++)
    {
        // Break out on first parm not starting with a dash
        if (argV[parmInd][0] != '-')
            break;

        // Watch for special case help request
        if (!strcmp(argV[parmInd], "-?"))
        {
            usage();
            XMLPlatformUtils::Terminate();
            return 2;
        }
         else if (!strncmp(argV[parmInd], "-v=", 3)
              ||  !strncmp(argV[parmInd], "-V=", 3))
        {
            const char* const parm = &argV[parmInd][3];

            if (!strcmp(parm, "never"))
                valScheme = SAXParser::Val_Never;
            else if (!strcmp(parm, "auto"))
                valScheme = SAXParser::Val_Auto;
            else if (!strcmp(parm, "always"))
                valScheme = SAXParser::Val_Always;
            else
            {
                cerr << "Unknown -v= value: " << parm << endl;
                XMLPlatformUtils::Terminate();
                return 2;
            }
        }
         else if (!strcmp(argV[parmInd], "-n")
              ||  !strcmp(argV[parmInd], "-N"))
        {
            doNamespaces = true;
        }
         else if (!strcmp(argV[parmInd], "-s")
              ||  !strcmp(argV[parmInd], "-S"))
        {
            doSchema = true;
        }
         else if (!strcmp(argV[parmInd], "-f")
              ||  !strcmp(argV[parmInd], "-F"))
        {
            schemaFullChecking = true;
        }
         else
        {
            cerr << "Unknown option '" << argV[parmInd]
                 << "', ignoring it\n" << endl;
        }
    }

    //
    //  Create a SAX parser object. Then, according to what we were told on
    //  the command line, set the options.
    //
    SAXParser* parser = new SAXParser;
    parser->setValidationScheme(valScheme);
    parser->setDoNamespaces(doNamespaces);
    parser->setDoSchema(doSchema);
    parser->setValidationSchemaFullChecking(schemaFullChecking);


    //
    //  Create our SAX handler object and install it on the parser, as the
    //  document and error handler. We are responsible for cleaning them
    //  up, but since its just stack based here, there's nothing special
    //  to do.
    //
    StdInParseHandlers handler;
    parser->setDocumentHandler(&handler);
    parser->setErrorHandler(&handler);

    unsigned long duration;
    int errorCount = 0;
    // create a faux scope so that 'src' destructor is called before
    // XMLPlatformUtils::Terminate
    {
        //
        //  Kick off the parse and catch any exceptions. Create a standard
        //  input input source and tell the parser to parse from that.
        //
        StdInInputSource src;
        try
        {
            const unsigned long startMillis = XMLPlatformUtils::getCurrentMillis();
            parser->parse(src);
            const unsigned long endMillis = XMLPlatformUtils::getCurrentMillis();
            duration = endMillis - startMillis;
            errorCount = parser->getErrorCount();
        }
        catch (const XMLException& e)
        {
            cerr << "\nError during parsing: \n"
                 << StrX(e.getMessage())
                 << "\n" << endl;
            errorCount = 1;
            return 4;
        }

        // Print out the stats that we collected and time taken
        if (!errorCount) {
            cout << StrX(src.getSystemId()) << ": " << duration << " ms ("
                 << handler.getElementCount() << " elems, "
                 << handler.getAttrCount() << " attrs, "
                 << handler.getSpaceCount() << " spaces, "
                 << handler.getCharacterCount() << " chars)" << endl;
        }
    }

    //
    //  Delete the parser itself.  Must be done prior to calling Terminate, below.
    //
    delete parser;

    XMLPlatformUtils::Terminate();

    if (errorCount > 0)
        return 4;
    else
        return 0;
}

