/*
 * 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.
 */
package org.apache.xerces.parsers;

import org.apache.xerces.impl.Constants;
import org.apache.xerces.util.SymbolTable;
import org.apache.xerces.xinclude.XIncludeHandler;
import org.apache.xerces.xinclude.XIncludeNamespaceSupport;
import org.apache.xerces.xni.XMLDocumentHandler;
import org.apache.xerces.xni.grammars.XMLGrammarPool;
import org.apache.xerces.xni.parser.XMLComponentManager;
import org.apache.xerces.xni.parser.XMLConfigurationException;
import org.apache.xerces.xni.parser.XMLDocumentSource;

This parser configuration includes an XIncludeHandler in the pipeline
before the schema validator, or as the last component in the pipeline if there is
no schema validator.  Using this pipeline will enable processing according to the
XML Inclusions specification, to the conformance level described in
XIncludeHandler.
Author:
Peter McCracken, IBM
See Also:
XIncludeHandler/**
 * This parser configuration includes an <code>XIncludeHandler</code> in the pipeline
 * before the schema validator, or as the last component in the pipeline if there is
 * no schema validator.  Using this pipeline will enable processing according to the
 * XML Inclusions specification, to the conformance level described in
 * <code>XIncludeHandler</code>.
 * 
 * @author Peter McCracken, IBM
 * @see org.apache.xerces.xinclude.XIncludeHandler
 */
public class XIncludeParserConfiguration extends XML11Configuration {

    private XIncludeHandler fXIncludeHandler;

    
Feature identifier: allow notation and unparsed entity events to be sent out of order. /** Feature identifier: allow notation and unparsed entity events to be sent out of order. */
    protected static final String ALLOW_UE_AND_NOTATION_EVENTS =
        Constants.SAX_FEATURE_PREFIX + Constants.ALLOW_DTD_EVENTS_AFTER_ENDDTD_FEATURE;
    
    
Feature identifier: fixup base URIs. /** Feature identifier: fixup base URIs. */
    protected static final String XINCLUDE_FIXUP_BASE_URIS =
        Constants.XERCES_FEATURE_PREFIX + Constants.XINCLUDE_FIXUP_BASE_URIS_FEATURE;
    
    
Feature identifier: fixup language. /** Feature identifier: fixup language. */
    protected static final String XINCLUDE_FIXUP_LANGUAGE =
        Constants.XERCES_FEATURE_PREFIX + Constants.XINCLUDE_FIXUP_LANGUAGE_FEATURE;

    
Property identifier: error reporter. /** Property identifier: error reporter. */
    protected static final String XINCLUDE_HANDLER =
        Constants.XERCES_PROPERTY_PREFIX + Constants.XINCLUDE_HANDLER_PROPERTY;

    
Property identifier: error reporter. /** Property identifier: error reporter. */
    protected static final String NAMESPACE_CONTEXT =
        Constants.XERCES_PROPERTY_PREFIX + Constants.NAMESPACE_CONTEXT_PROPERTY;

    
Default constructor. /** Default constructor. */
    public XIncludeParserConfiguration() {
        this(null, null, null);
    } // <init>()

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

    
Constructs a parser configuration using the specified symbol table and
grammar pool.

Params:
symbolTable – The symbol table to use.
grammarPool – The grammar pool to use./**
     * Constructs a parser configuration using the specified symbol table and
     * grammar pool.
     * <p>
     *
     * @param symbolTable The symbol table to use.
     * @param grammarPool The grammar pool to use.
     */
    public XIncludeParserConfiguration(
        SymbolTable symbolTable,
        XMLGrammarPool grammarPool) {
        this(symbolTable, grammarPool, null);
    } // <init>(SymbolTable,XMLGrammarPool)

    
Constructs a parser configuration using the specified symbol table,
grammar pool, and parent settings.

Params:
symbolTable –    The symbol table to use.
grammarPool –    The grammar pool to use.
parentSettings – The parent settings./**
     * Constructs a parser configuration using the specified symbol table,
     * grammar pool, and parent settings.
     * <p>
     *
     * @param symbolTable    The symbol table to use.
     * @param grammarPool    The grammar pool to use.
     * @param parentSettings The parent settings.
     */
    public XIncludeParserConfiguration(
        SymbolTable symbolTable,
        XMLGrammarPool grammarPool,
        XMLComponentManager parentSettings) {
        super(symbolTable, grammarPool, parentSettings);

        fXIncludeHandler = new XIncludeHandler();
        addCommonComponent(fXIncludeHandler);
        
        final String[] recognizedFeatures = {
            ALLOW_UE_AND_NOTATION_EVENTS,
            XINCLUDE_FIXUP_BASE_URIS,
            XINCLUDE_FIXUP_LANGUAGE
        };
        addRecognizedFeatures(recognizedFeatures);

        // add default recognized properties
        final String[] recognizedProperties =
            { XINCLUDE_HANDLER, NAMESPACE_CONTEXT };
        addRecognizedProperties(recognizedProperties);
        
        setFeature(ALLOW_UE_AND_NOTATION_EVENTS, true);
        setFeature(XINCLUDE_FIXUP_BASE_URIS, true);
        setFeature(XINCLUDE_FIXUP_LANGUAGE, true);
        
        setProperty(XINCLUDE_HANDLER, fXIncludeHandler);
        setProperty(NAMESPACE_CONTEXT, new XIncludeNamespaceSupport());
    } // <init>(SymbolTable,XMLGrammarPool)}
    
    
	
Configures the pipeline. /** Configures the pipeline. */
    protected void configurePipeline() {
        super.configurePipeline();

        //configure DTD pipeline
        fDTDScanner.setDTDHandler(fDTDProcessor);
        fDTDProcessor.setDTDSource(fDTDScanner);
        fDTDProcessor.setDTDHandler(fXIncludeHandler);
        fXIncludeHandler.setDTDSource(fDTDProcessor);
		fXIncludeHandler.setDTDHandler(fDTDHandler);
        if (fDTDHandler != null) {
            fDTDHandler.setDTDSource(fXIncludeHandler);
        }

        // configure XML document pipeline: insert after DTDValidator and 
        // before XML Schema validator
        XMLDocumentSource prev = null;
        if (fFeatures.get(XMLSCHEMA_VALIDATION) == Boolean.TRUE) {
            // we don't have to worry about fSchemaValidator being null, since
            // super.configurePipeline() instantiated it if the feature was set
            prev = fSchemaValidator.getDocumentSource();
        }
        // Otherwise, insert after the last component in the pipeline
        else {
            prev = fLastComponent;
            fLastComponent = fXIncludeHandler;
        }

        XMLDocumentHandler next = prev.getDocumentHandler();
		prev.setDocumentHandler(fXIncludeHandler);
		fXIncludeHandler.setDocumentSource(prev);
        if (next != null) {
            fXIncludeHandler.setDocumentHandler(next);
            next.setDocumentSource(fXIncludeHandler);
        }

    } // configurePipeline()

	protected void configureXML11Pipeline() {
		super.configureXML11Pipeline();
		
        // configure XML 1.1. DTD pipeline
		fXML11DTDScanner.setDTDHandler(fXML11DTDProcessor);
		fXML11DTDProcessor.setDTDSource(fXML11DTDScanner);
		fXML11DTDProcessor.setDTDHandler(fXIncludeHandler);
		fXIncludeHandler.setDTDSource(fXML11DTDProcessor);
		fXIncludeHandler.setDTDHandler(fDTDHandler);
		if (fDTDHandler != null) {
			fDTDHandler.setDTDSource(fXIncludeHandler);
		}
		
		// configure XML document pipeline: insert after DTDValidator and 
		// before XML Schema validator
		XMLDocumentSource prev = null;
		if (fFeatures.get(XMLSCHEMA_VALIDATION) == Boolean.TRUE) {
			// we don't have to worry about fSchemaValidator being null, since
			// super.configurePipeline() instantiated it if the feature was set
			prev = fSchemaValidator.getDocumentSource();
		}
		// Otherwise, insert after the last component in the pipeline
		else {
			prev = fLastComponent;
			fLastComponent = fXIncludeHandler;
		}

		XMLDocumentHandler next = prev.getDocumentHandler();
		prev.setDocumentHandler(fXIncludeHandler);
		fXIncludeHandler.setDocumentSource(prev);
		if (next != null) {
			fXIncludeHandler.setDocumentHandler(next);
			next.setDocumentSource(fXIncludeHandler);
		}

	} // configureXML11Pipeline()
    
    public void setProperty(String propertyId, Object value)
        throws XMLConfigurationException {

        if (propertyId.equals(XINCLUDE_HANDLER)) {
        }

        super.setProperty(propertyId, value);
    } // setProperty(String,Object)
}