samples/xni/parser/PSVIConfiguration.java

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

package xni.parser;


import xni.PSVIWriter;
import org.apache.xerces.impl.Constants;
import org.apache.xerces.impl.validation.GrammarPool;
import org.apache.xerces.parsers.DTDXSParserConfiguration;
import org.apache.xerces.util.SymbolTable;

import org.apache.xerces.xni.parser.XMLComponentManager;

/**
 * This is the DTD/ XML Schema parser configuration that includes PSVIWriter component.
 * The document will be fully assessed and will produce PSVI as required by XML Schema specification
 * configuration including XML Schema Validator in the pipeline.
 * 
 * @author Elena Litani, IBM
 * @version $Id$
 */
public class PSVIConfiguration extends DTDXSParserConfiguration {


     /** PSVI Writer */
    protected PSVIWriter fPSVIWriter;
    
    //
    // Constructors
    //

    /**
     * Constructs a document parser using the default symbol table and grammar
     * pool or the ones specified by the application (through the properties).
     */
    public PSVIConfiguration() {
        this(null, null);
    } // <init>()

    /**
     * Constructs a document parser using the specified symbol table.
     *
     * @param symbolTable    The symbol table to use.
     */
    public PSVIConfiguration(SymbolTable symbolTable) {
        this(symbolTable, null);
    } // <init>(SymbolTable)

    /**
     * Constructs a document parser using the specified symbol table and
     * grammar pool.
     * <p>
     * <strong>REVISIT:</strong>
     * Grammar pool will be updated when the new validation engine is
     * implemented.
     *
     * @param symbolTable    The symbol table to use.
     * @param grammarPool    The grammar pool to use.
     */
    public PSVIConfiguration(SymbolTable symbolTable,
                                     GrammarPool grammarPool) {
        this(symbolTable, grammarPool, null);
    } // <init>(SymbolTable,GrammarPool)

    /**
     * Constructs a parser configuration using the specified symbol table,
     * grammar pool, and parent settings.
     * <p>
     * <strong>REVISIT:</strong>
     * Grammar pool will be updated when the new validation engine is
     * implemented.
     *
     * @param symbolTable    The symbol table to use.
     * @param grammarPool    The grammar pool to use.
     * @param parentSettings The parent settings.
     */
    public PSVIConfiguration(SymbolTable symbolTable,
                                    GrammarPool grammarPool,
                                    XMLComponentManager parentSettings) {
        super(symbolTable, grammarPool, parentSettings);

        fPSVIWriter = createPSVIWriter();
        if (fPSVIWriter != null) {
            addComponent(fPSVIWriter);
        }

    } // <init>(SymbolTable,GrammarPool)


    /** Configures the pipeline. */
    protected void configurePipeline() {

        super.configurePipeline();
        if (fSchemaValidator != null) {
            fSchemaValidator.setDocumentHandler(fPSVIWriter);
            fPSVIWriter.setDocumentHandler(fDocumentHandler);
        }

    } // configurePipeline()


    /** Create a PSVIWriter */
    protected PSVIWriter createPSVIWriter(){
        return new PSVIWriter();
    }

} // class StandardParserConfiguration