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Extensible notification framework
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/**
 * Copyright 2010 Molindo GmbH
 *
 * Licensed 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 at.molindo.notify.dao.file;

import static at.molindo.utils.collections.ArrayUtils.iterable;

import java.io.File;
import java.io.IOException;
import java.util.Date;
import java.util.List;
import java.util.Locale;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import at.molindo.notify.dao.ITemplateDAO;
import at.molindo.notify.model.Template;
import at.molindo.notify.render.IRenderService.Type;
import at.molindo.notify.render.IRenderService.Version;
import at.molindo.utils.io.Compression;
import at.molindo.utils.io.FileUtils;
import at.molindo.utils.io.StreamUtils;

import com.google.common.collect.Lists;

public class FileTemplateDAO implements ITemplateDAO {

	private static final org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger(FileTemplateDAO.class);

	/**
	 *
	 * requires file names being long.en.txt
	 */
	private static final Pattern PATTERN;

	static {
		StringBuilder buf = new StringBuilder();

		// version
		buf.append("^(");
		for (Version version : Version.values()) {
			buf.append(version.name().toLowerCase()).append("|");
		}
		buf.setCharAt(buf.length() - 1, ')');

		// optinal locale
		buf.append("\\.");
		buf.append("([a-z]{2})?");

		// type as suffix
		buf.append("\\.");
		buf.append("(");
		for (Type type : Type.values()) {
			buf.append(type.name().toLowerCase()).append("|");
		}
		buf.setCharAt(buf.length() - 1, ')');
		buf.append("$");

		String pattern = buf.toString();

		log.debug("file name pattern: " + pattern);

		PATTERN = Pattern.compile(pattern);
	}

	private File _baseDir;

	@Override
	public List