DMDirc-Plugins/src/com/dmdirc/addons/mediasource_windows/WindowsMediaSourcePlugin.java

/*
 * Copyright (c) 2006-2013 DMDirc Developers
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package com.dmdirc.addons.mediasource_windows;

import com.dmdirc.addons.nowplaying.MediaSource;
import com.dmdirc.addons.nowplaying.MediaSourceManager;
import com.dmdirc.logger.ErrorLevel;
import com.dmdirc.logger.Logger;
import com.dmdirc.plugins.BaseFileDependantPlugin;
import com.dmdirc.plugins.PluginInfo;
import com.dmdirc.util.io.StreamReader;
import com.dmdirc.util.resourcemanager.ResourceManager;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

/**
 * Manages all Windows based media sources.
 */
public class WindowsMediaSourcePlugin extends BaseFileDependantPlugin
        implements MediaSourceManager {

    /** Media sources. */
    private final List<MediaSource> sources;

    /** My plugin info. */
    private final PluginInfo pluginInfo;

    /**
     * Creates a new instance of DcopMediaSourcePlugin.
     *
     * @param pluginInfo This plugin's plugin info
     */
    public WindowsMediaSourcePlugin(final PluginInfo pluginInfo) {
        super(pluginInfo.getMetaData());
        this.pluginInfo = pluginInfo;
        sources = new ArrayList<MediaSource>();
        sources.add(new DllSource(this, "Winamp", true));
        sources.add(new DllSource(this, "iTunes", false));
    }

    /** {@inheritDoc} */
    @Override
    public List<MediaSource> getSources() {
        return sources;
    }

    /**
     * Get the output from GetMediaInfo.exe for the given player and method
     *
     * @param player Player to ask about
     * @param method Method to call
     * @return a MediaInfoOutput with the results
     */
    protected MediaInfoOutput getOutput(final String player, final String method) {
        try {
            final Process myProcess = Runtime.getRuntime().exec(new String[]{getFilesDirString() + "GetMediaInfo.exe", player, method});
            final StringBuffer data = new StringBuffer();
            new StreamReader(myProcess.getErrorStream()).start();
            new StreamReader(myProcess.getInputStream(), data).start();
            try {
                myProcess.waitFor();
            } catch (InterruptedException e) {
            }

            return new MediaInfoOutput(myProcess.exitValue(), data.toString());
        } catch (SecurityException e) {
        } catch (IOException e) {
        }

        return new MediaInfoOutput(-1, "Error executing GetMediaInfo.exe");
    }

    /** {@inheritDoc} */
    @Override
    public void onLoad() {
        // Extract GetMediaInfo.exe and required DLLs
        final PluginInfo pi = pluginInfo.getMetaData().getManager().getPluginInfoByName("windowsmediasource");

        // This shouldn't actually happen, but check to make sure.
        if (pi == null) {
            return;
        }

        // Now get the RM
        try {
            final ResourceManager res = pi.getResourceManager();

            // Extract the .dlls and .exe
            try {
                res.extractResoucesEndingWith(getFilesDir(), ".dll");
                res.extractResoucesEndingWith(getFilesDir(), ".exe");
            } catch (IOException ex) {
                Logger.userError(ErrorLevel.MEDIUM, "Unable to extract files for windows media source: " + ex.getMessage(), ex);
            }
        } catch (IOException ioe) {
            Logger.userError(ErrorLevel.LOW, "Unable to open ResourceManager for windowsmediasource: " + ioe.getMessage(), ioe);
        }
    }
}