mirror of
https://github.com/yacy/yacy_search_server.git
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9ddf92d143
This improves code readability and maintainability (calls hierarchy are easier to read) and eventually performance.
86 lines
3.2 KiB
Java
86 lines
3.2 KiB
Java
// InstantBlockingThread.java
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// (C) 2008 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
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// first published 27.03.2008 on http://yacy.net
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//
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// $LastChangedDate$
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// $LastChangedRevision$
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// $LastChangedBy$
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//
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// LICENSE
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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package net.yacy.kelondro.workflow;
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import java.util.concurrent.atomic.AtomicInteger;
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import net.yacy.cora.util.ConcurrentLog;
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public class InstantBlockingThread<J extends WorkflowJob> extends AbstractBlockingThread<J> implements BlockingThread<J> {
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private static final String BLOCKINGTHREAD = "BLOCKINGTHREAD";
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private final WorkflowTask<J> task;
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private static AtomicInteger handleCounter = new AtomicInteger(0);
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private static AtomicInteger instantThreadCounter = new AtomicInteger(0);
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public InstantBlockingThread(final WorkflowProcessor<J> manager) {
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super();
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// set the manager of blocking queues for input and output
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setManager(manager);
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// define task to be executed
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this.task = manager.getTask();
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setName(manager.getName() + "." + handleCounter.getAndIncrement());
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}
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@Override
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public int getJobCount() {
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return getManager().getQueueSize();
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}
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@Override
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@SuppressWarnings("unchecked")
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public J job(final J next) throws Exception {
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J out = null;
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// see if we got a poison pill to tell us to shut down
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if (next == null) {
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out = (J) WorkflowJob.poisonPill;
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} else if (next == WorkflowJob.poisonPill || next.status == WorkflowJob.STATUS_POISON) {
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out = next;
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} else {
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final long t = System.currentTimeMillis();
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instantThreadCounter.incrementAndGet();
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//System.out.println("started job " + this.handle + ": " + this.getName());
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try {
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out = this.task.process(next);
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} catch (final Throwable e) {
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ConcurrentLog.severe(BLOCKINGTHREAD, "Internal Error in serverInstantThread.job: " + e.getMessage());
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ConcurrentLog.severe(BLOCKINGTHREAD, "shutting down thread '" + getName() + "'");
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ConcurrentLog.logException(e);
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ConcurrentLog.logException(e.getCause());
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ConcurrentLog.severe(BLOCKINGTHREAD, "Runtime Error in serverInstantThread.job, thread '" + getName() + "': " + e.getMessage());
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}
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instantThreadCounter.decrementAndGet();
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getManager().increaseJobTime(System.currentTimeMillis() - t);
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}
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return out;
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}
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} |