org.tinymediamanager.TmmOsUtils.java Source code

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Here is the source code for org.tinymediamanager.TmmOsUtils.java

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/*
 * Copyright 2012 - 2016 Manuel Laggner
 *
 * 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 org.tinymediamanager;

import java.io.File;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.lang.reflect.Method;
import java.net.URI;
import java.net.URL;
import java.net.URLClassLoader;
import java.net.URLDecoder;

import org.apache.commons.io.output.FileWriterWithEncoding;
import org.apache.commons.lang3.SystemUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * The class TmmOsUtils. Utility class for OS specific tasks
 * 
 * @author Manuel Laggner
 */
public class TmmOsUtils {
    private static final Logger LOGGER = LoggerFactory.getLogger(TmmOsUtils.class);

    public static final String DESKTOP_FILE = "tinyMediaManager.desktop";

    /**
     * create a .desktop file for linux and unix (not osx)
     * 
     * @param desktop
     *          .desktop file
     */
    public static void createDesktopFileForLinux(File desktop) {
        if (SystemUtils.IS_OS_WINDOWS || SystemUtils.IS_OS_MAC) {
            return;
        }

        // get the path in a safe way
        String path = new File(TinyMediaManager.class.getProtectionDomain().getCodeSource().getLocation().getPath())
                .getParent();
        try {
            path = URLDecoder.decode(path, "UTF-8");
        } catch (UnsupportedEncodingException e1) {
            path = URLDecoder.decode(path);
        }
        StringBuilder sb = new StringBuilder(60);
        sb.append("[Desktop Entry]\n");
        sb.append("Type=Application\n");
        sb.append("Name=tinyMediaManager\n");
        sb.append("Path=");
        sb.append(path);
        sb.append('\n');
        sb.append("Exec=/bin/sh \"");
        sb.append(path);
        sb.append("/tinyMediaManager.sh\"\n");
        sb.append("Icon=");
        sb.append(path);
        sb.append("/tmm.png\n");
        sb.append("Categories=AudioVideo;Video;Database;Java;");
        sb.append("\n");
        FileWriterWithEncoding writer;
        try {
            writer = new FileWriterWithEncoding(desktop, "UTF-8");
            writer.write(sb.toString());
            writer.close();
            desktop.setExecutable(true);
        } catch (IOException e) {
            LOGGER.warn(e.getMessage());
        }
    }

    /**
     * need to do add path to Classpath with reflection since the URLClassLoader.addURL(URL url) method is protected:
     * 
     * @param s
     *          the path to be set
     * @throws Exception
     */
    public static void addPath(String s) throws Exception {
        File f = new File(s);
        URI u = f.toURI();
        URLClassLoader urlClassLoader = (URLClassLoader) ClassLoader.getSystemClassLoader();
        Class<URLClassLoader> urlClass = URLClassLoader.class;
        Method method = urlClass.getDeclaredMethod("addURL", new Class[] { URL.class });
        method.setAccessible(true);
        method.invoke(urlClassLoader, new Object[] { u.toURL() });
    }
}