author | cli |
Sun, 11 Sep 2011 17:01:19 +0200 | |
changeset 49 | 8df94bfd3e2f |
parent 37 | 74139325d305 |
permissions | -rwxr-xr-x |
chris@3 | 1 |
/* |
chris@3 | 2 |
* SONEWS News Server |
chris@3 | 3 |
* see AUTHORS for the list of contributors |
chris@3 | 4 |
* |
chris@3 | 5 |
* This program is free software: you can redistribute it and/or modify |
chris@3 | 6 |
* it under the terms of the GNU General Public License as published by |
chris@3 | 7 |
* the Free Software Foundation, either version 3 of the License, or |
chris@3 | 8 |
* (at your option) any later version. |
chris@3 | 9 |
* |
chris@3 | 10 |
* This program is distributed in the hope that it will be useful, |
chris@3 | 11 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
chris@3 | 12 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
chris@3 | 13 |
* GNU General Public License for more details. |
chris@3 | 14 |
* |
chris@3 | 15 |
* You should have received a copy of the GNU General Public License |
chris@3 | 16 |
* along with this program. If not, see <http://www.gnu.org/licenses/>. |
chris@3 | 17 |
*/ |
chris@3 | 18 |
package org.sonews; |
chris@3 | 19 |
|
chris@3 | 20 |
import java.sql.SQLException; |
chris@3 | 21 |
import java.util.Map; |
chris@3 | 22 |
import org.sonews.daemon.AbstractDaemon; |
chris@3 | 23 |
|
chris@3 | 24 |
/** |
chris@3 | 25 |
* Will force all other threads to shutdown cleanly. |
chris@3 | 26 |
* @author Christian Lins |
chris@3 | 27 |
* @since sonews/0.5.0 |
chris@3 | 28 |
*/ |
cli@49 | 29 |
class ShutdownHook extends Thread { |
chris@3 | 30 |
|
cli@37 | 31 |
/** |
cli@37 | 32 |
* Called when the JVM exits. |
cli@37 | 33 |
*/ |
cli@37 | 34 |
@Override |
cli@49 | 35 |
public void run() { |
cli@37 | 36 |
System.out.println("sonews: Trying to shutdown all threads..."); |
chris@3 | 37 |
|
cli@37 | 38 |
Map<Thread, StackTraceElement[]> threadsMap = Thread.getAllStackTraces(); |
cli@37 | 39 |
for (Thread thread : threadsMap.keySet()) { |
cli@37 | 40 |
// Interrupt the thread if it's a AbstractDaemon |
cli@37 | 41 |
AbstractDaemon daemon; |
cli@37 | 42 |
if (thread instanceof AbstractDaemon && thread.isAlive()) { |
cli@37 | 43 |
try { |
cli@37 | 44 |
daemon = (AbstractDaemon) thread; |
cli@37 | 45 |
daemon.shutdownNow(); |
cli@37 | 46 |
} catch (SQLException ex) { |
cli@37 | 47 |
System.out.println("sonews: " + ex); |
cli@37 | 48 |
} |
cli@37 | 49 |
} |
cli@37 | 50 |
} |
cli@37 | 51 |
|
cli@37 | 52 |
for (Thread thread : threadsMap.keySet()) { |
cli@37 | 53 |
AbstractDaemon daemon; |
cli@37 | 54 |
if (thread instanceof AbstractDaemon && thread.isAlive()) { |
cli@37 | 55 |
daemon = (AbstractDaemon) thread; |
cli@37 | 56 |
System.out.println("sonews: Waiting for " + daemon + " to exit..."); |
cli@37 | 57 |
try { |
cli@37 | 58 |
daemon.join(500); |
cli@37 | 59 |
} catch (InterruptedException ex) { |
cli@37 | 60 |
System.out.println(ex.getLocalizedMessage()); |
cli@37 | 61 |
} |
cli@37 | 62 |
} |
cli@37 | 63 |
} |
cli@37 | 64 |
|
cli@37 | 65 |
// We have notified all not-sleeping AbstractDaemons of the shutdown; |
cli@37 | 66 |
// all other threads can be simply purged on VM shutdown |
cli@37 | 67 |
|
cli@37 | 68 |
System.out.println("sonews: Clean shutdown."); |
cli@37 | 69 |
} |
chris@3 | 70 |
} |