/*

 * reserved comment block

 * DO NOT REMOVE OR ALTER!

 */

/*

 * 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 com.sun.org.apache.xerces.internal.util;

import javax.xml.stream.XMLEventReader;

import javax.xml.stream.XMLStreamException;

import javax.xml.stream.XMLStreamReader;

import com.sun.org.apache.xerces.internal.xni.parser.XMLInputSource;

/**

 * <p>An <code>XMLInputSource</code> analogue to <code>javax.xml.transform.stax.StAXSource</code>.</p>

 *

 */

public final class StAXInputSource extends XMLInputSource {

    private final XMLStreamReader fStreamReader;

    private final XMLEventReader fEventReader;

    private final boolean fConsumeRemainingContent;

    public StAXInputSource(XMLStreamReader source) {

        this(source, false);

    }

    public StAXInputSource(XMLStreamReader source, boolean consumeRemainingContent) {

        super(null, source.getLocation().getSystemId(), null, false);

        if (source == null) {

            throw new IllegalArgumentException("XMLStreamReader parameter cannot be null.");

        }

        fStreamReader = source;

        fEventReader = null;

        fConsumeRemainingContent = consumeRemainingContent;

    }

    public StAXInputSource(XMLEventReader source) {

        this(source, false);

    }

    public StAXInputSource(XMLEventReader source, boolean consumeRemainingContent) {

        super(null, getEventReaderSystemId(source), null, false);

        if (source == null) {

            throw new IllegalArgumentException("XMLEventReader parameter cannot be null.");

        }

        fStreamReader = null;

        fEventReader = source;

        fConsumeRemainingContent = consumeRemainingContent;

    }

    public XMLStreamReader getXMLStreamReader() {

        return fStreamReader;

    }

    public XMLEventReader getXMLEventReader() {

        return fEventReader;

    }

    public boolean shouldConsumeRemainingContent() {

        return fConsumeRemainingContent;

    }

    public void setSystemId(String systemId){

        throw new UnsupportedOperationException("Cannot set the system ID on a StAXInputSource");

    }

    private static String getEventReaderSystemId(XMLEventReader reader) {

        try {

            if (reader != null) {

                return reader.peek().getLocation().getSystemId();

            }

        }

        catch (XMLStreamException e) {}

        return null;

    }

} // StAXInputSource