Mercurial > hg > release > thermostat-1.2
view thread/client-controllers/src/main/java/com/redhat/thermostat/thread/client/controller/impl/ThreadTimelineController.java @ 1623:b1306c7c7422
Thread monitor improvements part I
review-thread: http://icedtea.classpath.org/pipermail/thermostat/2014-December/012136.html
reviewed-by: omajid, jkang
author | Mario Torre <neugens.limasoftware@gmail.com> |
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date | Thu, 11 Dec 2014 11:44:42 +0100 |
parents | 12cbcf0b199e |
children | affa18455541 |
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/* * Copyright 2012-2014 Red Hat, Inc. * * This file is part of Thermostat. * * Thermostat 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, or (at your * option) any later version. * * Thermostat 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 Thermostat; see the file COPYING. If not see * <http://www.gnu.org/licenses/>. * * Linking this code with other modules is making a combined work * based on this code. Thus, the terms and conditions of the GNU * General Public License cover the whole combination. * * As a special exception, the copyright holders of this code give * you permission to link this code with independent modules to * produce an executable, regardless of the license terms of these * independent modules, and to copy and distribute the resulting * executable under terms of your choice, provided that you also * meet, for each linked independent module, the terms and conditions * of the license of that module. An independent module is a module * which is not derived from or based on this code. If you modify * this code, you may extend this exception to your version of the * library, but you are not obligated to do so. If you do not wish * to do so, delete this exception statement from your version. */ package com.redhat.thermostat.thread.client.controller.impl; import com.redhat.thermostat.common.Timer; import com.redhat.thermostat.common.model.Range; import com.redhat.thermostat.storage.core.experimental.statement.ResultHandler; import com.redhat.thermostat.thread.client.common.collector.ThreadCollector; import com.redhat.thermostat.thread.client.common.model.timeline.ThreadInfo; import com.redhat.thermostat.thread.client.common.model.timeline.TimelineFactory; import com.redhat.thermostat.thread.client.common.model.timeline.TimelineProbe; import com.redhat.thermostat.thread.client.common.view.ThreadTimelineView; import com.redhat.thermostat.thread.model.SessionID; import com.redhat.thermostat.thread.model.ThreadState; import java.util.HashSet; import java.util.Set; import java.util.concurrent.TimeUnit; public class ThreadTimelineController extends CommonController { private static final boolean _DEBUG_BLOCK_TIMING_ = false; private ThreadTimelineView view; private ThreadCollector collector; private static final String lock = new String("ThreadTimelineController"); private boolean requestClear; public ThreadTimelineController(ThreadTimelineView view, ThreadCollector collector, Timer timer) { super(timer, view); timer.setAction(new ThreadTimelineControllerAction()); this.view = view; this.collector = collector; } private class ThreadTimelineControllerAction implements Runnable { private Range<Long> range; private Range<Long> lastRange; private ThreadStateResultHandler threadStateResultHandler; private long lastUpdate; private SessionID lastSession; public ThreadTimelineControllerAction() { lastUpdate = System.currentTimeMillis() - TimeUnit.HOURS.toMillis(1); threadStateResultHandler = new ThreadStateResultHandler(); } private void resetState() { view.clear(); lastRange = null; lastUpdate = System.currentTimeMillis() - TimeUnit.HOURS.toMillis(1); threadStateResultHandler.knownStates.clear(); threadStateResultHandler.key = new ThreadInfo(); } @Override public void run() { synchronized (lock) { // FIXME: show only the last sessions for now, support for // filtering over sessions will come later SessionID session = collector.getLastThreadSession(); if (session == null) { // ok, no data, let's skip this round return; } if (lastSession == null || !session.get().equals(lastSession.get())) { // since we only visualise one sessions at a time and this // is a new session needs, let's clear the view resetState(); } lastSession = session; // get the full range of known timelines per vm Range<Long> totalRange = collector.getThreadRange(session); if (totalRange == null) { // this just means we don't have any data yet return; } if (!totalRange.equals(lastRange)) { view.setTotalRange(totalRange); } lastRange = totalRange; range = new Range<>(lastUpdate, totalRange.getMax()); lastUpdate = totalRange.getMax(); collector.getThreadStates(session, threadStateResultHandler, range); threadStateResultHandler.results = 0; } } } private class ThreadStateResultHandler implements ResultHandler<ThreadState> { private ThreadInfo key; private Set<ThreadInfo> knownStates; int results; public ThreadStateResultHandler() { this.key = new ThreadInfo(); knownStates = new HashSet<>(); } @Override public void onResult(ThreadState state) { results++; key.setName(state.getName()); key.setId(state.getId()); ThreadInfo info = new ThreadInfo(key); if (!knownStates.contains(key)) { view.addThread(info); knownStates.add(info); } TimelineProbe probe = TimelineFactory.createTimelineProbe(state); view.addProbe(info, probe); } } }