You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
92 lines
3.3 KiB
92 lines
3.3 KiB
// serverAbstractBlockingThread.java
|
|
// (C) 2008 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
|
|
// first published 27.03.2008 on http://yacy.net
|
|
//
|
|
// $LastChangedDate: 2006-04-02 22:40:07 +0200 (So, 02 Apr 2006) $
|
|
// $LastChangedRevision: 1986 $
|
|
// $LastChangedBy: orbiter $
|
|
//
|
|
// LICENSE
|
|
//
|
|
// 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; either version 2 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// 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, write to the Free Software
|
|
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
|
|
package de.anomic.server;
|
|
|
|
import java.util.concurrent.BlockingQueue;
|
|
|
|
import de.anomic.server.logging.serverLog;
|
|
|
|
public abstract class serverAbstractBlockingThread<I, O> extends serverAbstractThread implements serverBlockingThread<I, O> {
|
|
|
|
private BlockingQueue<I> input = null;
|
|
private BlockingQueue<O> output = null;
|
|
|
|
public void setInputQueue(BlockingQueue<I> queue) {
|
|
this.input = queue;
|
|
}
|
|
public void setOutputQueue(BlockingQueue<O> queue) {
|
|
this.output = queue;
|
|
}
|
|
public BlockingQueue<I> getInputQueue() {
|
|
return this.input;
|
|
}
|
|
public BlockingQueue<O> getOutputQueue() {
|
|
return this.output;
|
|
}
|
|
|
|
public void run() {
|
|
this.open();
|
|
if (log != null) {
|
|
logSystem("thread '" + this.getName() + "' deployed, starting loop.");
|
|
}
|
|
long timestamp;
|
|
long memstamp0, memstamp1;
|
|
long busyCycles = 0;
|
|
|
|
while (running) {
|
|
try {
|
|
// do job
|
|
timestamp = System.currentTimeMillis();
|
|
memstamp0 = serverMemory.used();
|
|
O out = this.job(this.input.take());
|
|
if (out != null) this.output.add(out);
|
|
// do memory and busy/idle-count/time monitoring
|
|
memstamp1 = serverMemory.used();
|
|
if (memstamp1 >= memstamp0) {
|
|
// no GC in between. this is not shure but most probable
|
|
memuse += memstamp1 - memstamp0;
|
|
} else {
|
|
// GC was obviously in between. Add an average as simple heuristic
|
|
if (busyCycles > 0) memuse += memuse / busyCycles;
|
|
}
|
|
busytime += System.currentTimeMillis() - timestamp;
|
|
} catch (Exception e) {
|
|
// handle exceptions: thread must not die on any unexpected exceptions
|
|
// if the exception is too bad it should call terminate()
|
|
this.jobExceptionHandler(e);
|
|
} finally {
|
|
busyCycles++;
|
|
}
|
|
}
|
|
this.close();
|
|
logSystem("thread '" + this.getName() + "' terminated.");
|
|
}
|
|
|
|
private void logSystem(String text) {
|
|
if (log == null) serverLog.logConfig("THREAD-CONTROL", text);
|
|
else log.logConfig(text);
|
|
}
|
|
}
|