| /* |
| * Copyright 2009-2012 by The Regents of the University of California |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * you may obtain a copy of the License from |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package edu.uci.ics.asterix.installer.command; |
| |
| import java.util.ArrayList; |
| import java.util.Date; |
| import java.util.List; |
| |
| import org.kohsuke.args4j.Option; |
| |
| import edu.uci.ics.asterix.event.management.EventrixClient; |
| import edu.uci.ics.asterix.event.schema.cluster.Node; |
| import edu.uci.ics.asterix.event.schema.pattern.Pattern; |
| import edu.uci.ics.asterix.event.schema.pattern.Patterns; |
| import edu.uci.ics.asterix.installer.driver.InstallerDriver; |
| import edu.uci.ics.asterix.installer.driver.InstallerUtil; |
| import edu.uci.ics.asterix.installer.events.PatternCreator; |
| import edu.uci.ics.asterix.installer.model.AsterixInstance; |
| import edu.uci.ics.asterix.installer.model.AsterixInstance.State; |
| import edu.uci.ics.asterix.installer.service.ServiceProvider; |
| |
| public class StopCommand extends AbstractCommand { |
| |
| @Override |
| protected void execCommand() throws Exception { |
| InstallerDriver.initConfig(); |
| String asterixInstanceName = ((StopConfig) config).name; |
| AsterixInstance asterixInstance = InstallerUtil.validateAsterixInstanceExists(asterixInstanceName, |
| State.ACTIVE, State.UNUSABLE); |
| PatternCreator pc = new PatternCreator(); |
| List<Pattern> patternsToExecute = new ArrayList<Pattern>(); |
| patternsToExecute.add(pc.createCCStopPattern(asterixInstance.getCluster().getMasterNode().getId())); |
| |
| for (Node node : asterixInstance.getCluster().getNode()) { |
| patternsToExecute.add(pc.createNCStopPattern(node.getId(), asterixInstanceName + "_" + node.getId())); |
| } |
| EventrixClient client = InstallerUtil.getEventrixClient(asterixInstance.getCluster()); |
| try { |
| client.submit(new Patterns(patternsToExecute)); |
| } catch (Exception e) { |
| // processes are already dead |
| LOGGER.debug("Attempt to kill non-existing processess"); |
| } |
| asterixInstance.setState(State.INACTIVE); |
| asterixInstance.setStateChangeTimestamp(new Date()); |
| ServiceProvider.INSTANCE.getLookupService().updateAsterixInstance(asterixInstance); |
| LOGGER.info("Stopped Asterix instance: " + asterixInstanceName); |
| } |
| |
| @Override |
| protected CommandConfig getCommandConfig() { |
| return new StopConfig(); |
| } |
| |
| public String getAsterixInstanceName() { |
| return ((StopConfig) config).name; |
| } |
| |
| @Override |
| protected String getUsageDescription() { |
| return "\nShuts an ASTERIX instance that is in ACTIVE/UNUSABLE state." |
| + "\nAfter executing the stop command, the ASTERIX instance transits" |
| + "\nto the INACTIVE state, indicating that it is no longer available" |
| + "\nfor executing statements/queries." + "\n\nAvailable arguments/options" |
| + "\n-n name of the ASTERIX instance."; |
| |
| } |
| |
| } |
| |
| class StopConfig extends AbstractCommandConfig { |
| |
| @Option(name = "-n", required = false, usage = "Name of Asterix Instance") |
| public String name; |
| |
| } |