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   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

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   distributed under the License is distributed on an "AS IS" BASIS,
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   See the License for the specific language governing permissions and
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package org.apache.poi.openxml4j.opc.internal;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

import org.apache.commons.compress.archivers.zip.ZipArchiveEntry;
import org.apache.commons.compress.archivers.zip.ZipArchiveOutputStream;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.openxml4j.opc.OPCPackage;
import org.apache.poi.openxml4j.opc.StreamHelper;
import org.apache.poi.util.POILogFactory;
import org.apache.poi.util.POILogger;
import org.w3c.dom.Document;

Zip implementation of the ContentTypeManager.
Author:
Julien Chable
See Also:
ContentTypeManager
Version:
1.0/**
 * Zip implementation of the ContentTypeManager.
 *
 * @author Julien Chable
 * @version 1.0
 * @see ContentTypeManager
 */
public class ZipContentTypeManager extends ContentTypeManager {
    private final static POILogger logger = POILogFactory.getLogger(ZipContentTypeManager.class);

	
Delegate constructor to the super constructor.
Params:
in – 
           The input stream to parse to fill internal content type
           collections.
Throws:
InvalidFormatException – 
            If the content types part content is not valid./**
	 * Delegate constructor to the super constructor.
	 *
	 * @param in
	 *            The input stream to parse to fill internal content type
	 *            collections.
	 * @throws InvalidFormatException
	 *             If the content types part content is not valid.
	 */
	public ZipContentTypeManager(InputStream in, OPCPackage pkg)
			throws InvalidFormatException {
		super(in, pkg);
	}

	@SuppressWarnings("resource")
    @Override
	public boolean saveImpl(Document content, OutputStream out) {
		final ZipArchiveOutputStream zos = (out instanceof ZipArchiveOutputStream)
				? (ZipArchiveOutputStream) out : new ZipArchiveOutputStream(out);

		ZipArchiveEntry partEntry = new ZipArchiveEntry(CONTENT_TYPES_PART_NAME);
		try {
			// Referenced in ZIP
			zos.putArchiveEntry(partEntry);
			try {
				// Saving data in the ZIP file
				return StreamHelper.saveXmlInStream(content, zos);
			} finally {
				zos.closeArchiveEntry();
			}
		} catch (IOException ioe) {
			logger.log(POILogger.ERROR, "Cannot write: " + CONTENT_TYPES_PART_NAME
					+ " in Zip !", ioe);
			return false;
		}
	}
}