Mercurial > hg > release > thermostat-1.6
view agent/core/src/main/java/com/redhat/thermostat/agent/Agent.java @ 2031:5a183ba7be84
Add support for IPv6 in agent bind addresses.
Reviewed-by: jkang
Review-thread: http://icedtea.classpath.org/pipermail/thermostat/2016-November/021611.html
PR3229
author | Severin Gehwolf <sgehwolf@redhat.com> |
---|---|
date | Tue, 15 Nov 2016 15:36:09 +0100 |
parents | 31f274ab27a5 |
children | f09130ac15b7 |
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/* * Copyright 2012-2016 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.agent; import java.util.Map; import java.util.concurrent.ConcurrentHashMap; import java.util.logging.Level; import java.util.logging.Logger; import com.redhat.thermostat.agent.config.AgentStartupConfiguration; import com.redhat.thermostat.backend.Backend; import com.redhat.thermostat.backend.BackendRegistry; import com.redhat.thermostat.common.ActionEvent; import com.redhat.thermostat.common.ActionListener; import com.redhat.thermostat.common.LaunchException; import com.redhat.thermostat.common.ThermostatExtensionRegistry; import com.redhat.thermostat.common.utils.HostPortPair; import com.redhat.thermostat.common.utils.LoggingUtils; import com.redhat.thermostat.storage.core.Storage; import com.redhat.thermostat.storage.core.WriterID; import com.redhat.thermostat.storage.dao.AgentInfoDAO; import com.redhat.thermostat.storage.dao.BackendInfoDAO; import com.redhat.thermostat.storage.model.AgentInformation; import com.redhat.thermostat.storage.model.BackendInformation; /** * Represents the Agent running on a host. */ public class Agent { private static final Logger logger = LoggingUtils.getLogger(Agent.class); private final BackendRegistry backendRegistry; private final AgentStartupConfiguration config; private final Map<Backend, BackendInformation> backendInfos; private final Storage storage; private final AgentInfoDAO agentDao; private final BackendInfoDAO backendDao; private final WriterID writerID; private AgentInformation agentInfo; private boolean started = false; private ActionListener<ThermostatExtensionRegistry.Action> backendRegistryListener = new ActionListener<ThermostatExtensionRegistry.Action>() { @Override public void actionPerformed(ActionEvent<ThermostatExtensionRegistry.Action> actionEvent) { Backend backend = (Backend) actionEvent.getPayload(); switch (actionEvent.getActionId()) { case SERVICE_ADDED: { if (!backendInfos.containsKey(backend)) { logger.info("Adding backend: " + backend); backend.activate(); BackendInformation info = AgentHelper.createBackendInformation(backend, getId()); backendDao.addBackendInformation(info); backendInfos.put(backend, info); } else { logger.warning("Backend registered that agent already knows about:" + backend); } break; } case SERVICE_REMOVED: { BackendInformation info = backendInfos.get(backend); if (info != null) { logger.info("removing backend: " + backend); backend.deactivate(); backendDao.removeBackendInformation(info); backendInfos.remove(backend); } break; } default: { logger.log(Level.WARNING, "received unknown event from BackendRegistry: " + actionEvent.getActionId()); break; } } } }; public Agent(BackendRegistry registry, AgentStartupConfiguration config, Storage storage, AgentInfoDAO agentInfoDao, BackendInfoDAO backendInfoDao, WriterID writerId) { this.backendRegistry = registry; this.config = config; this.storage = storage; this.agentDao = agentInfoDao; this.backendDao = backendInfoDao; this.writerID = writerId; backendInfos = new ConcurrentHashMap<>(); backendRegistry.addActionListener(backendRegistryListener); } public synchronized void start() throws LaunchException { if (!started) { agentInfo = createAgentInformation(); agentInfo.setAgentId(getId()); agentDao.addAgentInformation(agentInfo); backendRegistry.start(); started = true; } else { logger.warning("Attempt to start agent when already started."); } } Map<Backend, BackendInformation> getBackendInfos() { return backendInfos; } private AgentInformation createAgentInformation() { String writerId = getId(); AgentInformation agentInfo = new AgentInformation(writerId); agentInfo.setStartTime(config.getStartTime()); agentInfo.setAlive(true); HostPortPair hostPort = config.getConfigListenAddress(); String host = hostPort.getHost(); if (host.indexOf(":") != -1) { host = "[" + host + "]"; } agentInfo.setConfigListenAddress(String.format("%s:%d", host, hostPort.getPort())); return agentInfo; } public synchronized void stop() { if (started) { backendRegistry.stop(); if (config.purge()) { removeAllAgentRelatedInformation(); } else { updateAgentStatusToStopped(); } started = false; } else { logger.warning("Attempt to stop agent which is not active"); } } private void removeAllAgentRelatedInformation() { System.out.println("purging database"); logger.info("purging database"); agentDao.removeAgentInformation(agentInfo); storage.purge(agentInfo.getAgentId()); } private void updateAgentStatusToStopped() { agentInfo.setStopTime(System.currentTimeMillis()); agentInfo.setAlive(false); agentDao.updateAgentInformation(agentInfo); } public String getId() { return writerID.getWriterID(); } }