updaterutils.java

java 文件下载器。可自定义

// Decompiled by Jad v1.5.8e2. Copyright 2001 Pavel Kouznetsov.
// Jad home page: http://kpdus.tripod.com/jad.html
// Decompiler options: packimports(3) fieldsfirst ansi space 
// Source File Name:   UpdaterUtils.java

package org.gudy.azureus2.update;

import com.aelitis.azureus.core.AzureusCore;
import com.aelitis.azureus.core.AzureusCoreFactory;
import java.io.*;
import org.gudy.azureus2.core3.logging.LogAlert;
import org.gudy.azureus2.core3.logging.Logger;
import org.gudy.azureus2.core3.util.Debug;
import org.gudy.azureus2.core3.util.FileUtil;
import org.gudy.azureus2.plugins.PluginInterface;
import org.gudy.azureus2.plugins.PluginManager;

public class UpdaterUtils
{

	public static String AZUPDATER_PLUGIN_ID = "azupdater";
	public static String AZUPDATERPATCHER_PLUGIN_ID = "azupdaterpatcher";
	protected static String AZUPNPAV_PLUGIN_ID = "azupnpav";

	public UpdaterUtils()
	{
	}

	public static boolean disableNativeCode(String version)
	{
		File plugin_dir;
		plugin_dir = null;
		File shared_plugin_dir = FileUtil.getApplicationFile("plugins");
		File shared_updater_plugin = new File(shared_plugin_dir, AZUPDATER_PLUGIN_ID);
		if (shared_updater_plugin.exists())
			plugin_dir = shared_updater_plugin;
		if (plugin_dir == null)
			return false;
		return (new File(plugin_dir, (new StringBuilder()).append("disnat").append(version).toString())).exists();
		Throwable e;
		e;
		e.printStackTrace();
		return false;
	}

	public static void checkBootstrapPlugins()
	{
		try
		{
			File target_props = getPropsIfNotPresent(AZUPDATER_PLUGIN_ID, true);
			if (target_props != null)
				writePluginProperties(target_props, new String[] {
					"plugin.class=org.gudy.azureus2.update.UpdaterUpdateChecker;org.gudy.azureus2.update.UpdaterPatcher", "plugin.name=Azureus Update Support;Azureus Updater Support Patcher"
				});
			target_props = getPropsIfNotPresent(AZUPNPAV_PLUGIN_ID, false);
			if (target_props != null)
				writePluginProperties(target_props, new String[] {
					"plugin.class=com.aelitis.azureus.plugins.upnpmediaserver.UPnPMediaServer", "plugin.name=UPnP Media Server", "plugin.id=azupnpav"
				});
		}
		catch (Throwable e)
		{
			Debug.printStackTrace(e);
		}
	}

	public static boolean ensurePluginPresent(String id, String cla, String name)
	{
		File target_props = getPropsIfNotPresent(id, false);
		if (target_props != null)
		{
			writePluginProperties(target_props, new String[] {
				(new StringBuilder()).append("plugin.class=").append(cla).toString(), (new StringBuilder()).append("plugin.name=").append(name).toString(), (new StringBuilder()).append("plugin.id=").append(id).toString()
			});
			return true;
		} else
		{
			return false;
		}
	}

	protected static void writePluginProperties(File target, String lines[])
	{
		PrintWriter pw = null;
		pw = new PrintWriter(new FileWriter(target));
		for (int i = 0; i < lines.length; i++)
			pw.println(lines[i]);

		pw.println("plugin.install_if_missing=yes");
		if (pw != null)
			pw.close();
		break MISSING_BLOCK_LABEL_69;
		Exception exception;
		exception;
		if (pw != null)
			pw.close();
		throw exception;
		if (!target.exists())
			throw new Exception((new StringBuilder()).append("Failed to write '").append(target.toString()).append("'").toString());
		break MISSING_BLOCK_LABEL_146;
		Throwable e;
		e;
		Logger.log(new LogAlert(false, (new StringBuilder()).append("Plugin bootstrap: initialisation error for ").append(target).toString(), e));
	}

	protected static File getPropsIfNotPresent(String id, boolean use_shared)
	{
		File user_plugin_dir = FileUtil.getUserFile("plugins");
		File user_plugin = new File(user_plugin_dir, id);
		File user_props = new File(user_plugin, "plugin.properties");
		if (user_props.exists())
			return null;
		File shared_plugin_dir = FileUtil.getApplicationFile("plugins");
		File shared_plugin = new File(shared_plugin_dir, id);
		File shared_props = new File(shared_plugin, "plugin.properties");
		if (shared_props.exists())
			return null;
		if (use_shared)
		{
			FileUtil.mkdirs(shared_plugin);
			return shared_props;
		} else
		{
			FileUtil.mkdirs(user_plugin);
			return user_props;
		}
	}

	public static String getUpdaterPluginVersion()
	{
		String version;
		PluginInterface pi = AzureusCoreFactory.getSingleton().getPluginManager().getPluginInterfaceByID(AZUPDATER_PLUGIN_ID, false);
		if (pi == null)
			break MISSING_BLOCK_LABEL_37;
		version = pi.getPluginVersion();
		if (version != null)
			return version;
		break MISSING_BLOCK_LABEL_37;
		Throwable t;
		t;
		return "0";
	}

}