/*************************************************************************
* Copyright 2009-2012 Eucalyptus Systems, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see http://www.gnu.org/licenses/.
*
* Please contact Eucalyptus Systems, Inc., 6755 Hollister Ave., Goleta
* CA 93117, USA or visit http://www.eucalyptus.com/licenses/ if you need
* additional information or have any questions.
*
* This file may incorporate work covered under the following copyright
* and permission notice:
*
* Software License Agreement (BSD License)
*
* Copyright (c) 2008, Regents of the University of California
* All rights reserved.
*
* Redistribution and use of this software in source and binary forms,
* with or without modification, are permitted provided that the
* following conditions are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE. USERS OF THIS SOFTWARE ACKNOWLEDGE
* THE POSSIBLE PRESENCE OF OTHER OPEN SOURCE LICENSED MATERIAL,
* COPYRIGHTED MATERIAL OR PATENTED MATERIAL IN THIS SOFTWARE,
* AND IF ANY SUCH MATERIAL IS DISCOVERED THE PARTY DISCOVERING
* IT MAY INFORM DR. RICH WOLSKI AT THE UNIVERSITY OF CALIFORNIA,
* SANTA BARBARA WHO WILL THEN ASCERTAIN THE MOST APPROPRIATE REMEDY,
* WHICH IN THE REGENTS' DISCRETION MAY INCLUDE, WITHOUT LIMITATION,
* REPLACEMENT OF THE CODE SO IDENTIFIED, LICENSING OF THE CODE SO
* IDENTIFIED, OR WITHDRAWAL OF THE CODE CAPABILITY TO THE EXTENT
* NEEDED TO COMPLY WITH ANY SUCH LICENSES OR RIGHTS.
************************************************************************/
package com.eucalyptus.objectstorage.bittorrent;
import java.io.File;
import java.util.Collection;
import org.apache.log4j.Logger;
import com.eucalyptus.objectstorage.util.ObjectStorageProperties;
import com.eucalyptus.system.Threads;
import com.eucalyptus.util.EucalyptusCloudException;
import edu.ucsb.eucalyptus.util.StreamConsumer;
import edu.ucsb.eucalyptus.util.SystemUtil;
public class Tracker extends Thread {
private static Logger LOG = Logger.getLogger(Tracker.class);
private static Tracker tracker;
private Process proc;
public Tracker( ) {
super( Threads.threadUniqueName( "osg-torrent-tracker" ) );
}
public static void initialize() {
tracker = new Tracker();
if (tracker.exists()) {
ObjectStorageProperties.enableTorrents = true;
tracker.start();
Runtime.getRuntime().addShutdownHook(new Thread( "osg-torrent-shutdown-hook" ) {
public void run() {
tracker.bye();
Collection<TorrentClient> torrentClients = Torrents.getClients();
for (TorrentClient torrentClient : torrentClients) {
torrentClient.bye();
}
}
});
} else {
LOG.warn("bttrack not found (bittorrent installed?). Torrent support disabled (non critical).");
}
}
public boolean exists() {
try {
return (findTracker().length() > 0);
} catch (EucalyptusCloudException e) {
return false;
}
}
private String findTracker() throws EucalyptusCloudException {
return SystemUtil.run(new String[] {ObjectStorageProperties.TRACKER_BINARY});
}
public void run() {
track();
}
private void track() {
new File(ObjectStorageProperties.TRACKER_DIR).mkdirs();
try {
Runtime rt = Runtime.getRuntime();
proc =
rt.exec(new String[] {ObjectStorageProperties.TRACKER_BINARY, "--port", ObjectStorageProperties.TRACKER_PORT, "--dfile",
ObjectStorageProperties.TRACKER_DIR + "dstate", "--logfile", ObjectStorageProperties.TRACKER_DIR + "tracker.log"});
StreamConsumer error = new StreamConsumer(proc.getErrorStream());
StreamConsumer output = new StreamConsumer(proc.getInputStream());
error.start();
output.start();
Thread.sleep(300);
String errValue = error.getReturnValue();
if (errValue.length() > 0) {
if (!errValue.contains("already in use"))
LOG.warn(errValue);
}
} catch (Exception t) {
t.printStackTrace();
}
}
public void bye() {
if (proc != null)
proc.destroy();
}
public static void die() {
if (tracker != null) {
tracker.bye();
}
}
}