ManifestUtil.java

/*
 * 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 ro.nextreports.designer.util;

import java.io.File;
import java.io.IOException;
import java.util.jar.JarFile;

/**
 * Created by IntelliJ IDEA.
 * User: mihai.panaitescu
 * Date: Oct 29, 2007
 * Time: 4:31:36 PM
 */
public class ManifestUtil {

    public static String getVersion(String jarPath) throws IOException {
        JarFile jar = new JarFile(new File(jarPath));
        return jar.getManifest().getMainAttributes().getValue("Implementation-Version");
	}

    public static String getVersion(String path, String baseName) throws IOException {
        String[] files = new File(path).list();
        if (files == null) {
        	return "NA";
        }

        for (String file : files) {
            if (file.startsWith(baseName)) {
                return getVersion(path + File.separator + file);
            }
        }

        return "NA";
    }
}