GzippedContent.java

/**
 * Copyright (c) 2012, Thilo Planz. All rights reserved.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
package v7db.files.spi;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.util.Map;
import java.util.zip.GZIPInputStream;

import org.apache.commons.io.IOUtils;

public class GzippedContent implements StorageScheme {

	public Content getContent(ContentStorage storage, Map<String, Object> data)
			throws IOException {
		byte[] bytes = (byte[]) data.get("zin");
		GZIPInputStream gz = new GZIPInputStream(
				new ByteArrayInputStream(bytes));
		byte[] unzipped = IOUtils.toByteArray(gz);
		return new InlineContent(unzipped);
	}

	public String getId() {
		return "gz";
	}

}