| /* |
| * 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.List; |
| |
| import org.kohsuke.args4j.Option; |
| |
| import edu.uci.ics.asterix.installer.driver.InstallerDriver; |
| import edu.uci.ics.asterix.installer.driver.InstallerUtil; |
| import edu.uci.ics.asterix.installer.error.InstallerException; |
| import edu.uci.ics.asterix.installer.error.VerificationUtil; |
| import edu.uci.ics.asterix.installer.model.AsterixInstance; |
| import edu.uci.ics.asterix.installer.model.AsterixInstance.State; |
| import edu.uci.ics.asterix.installer.model.AsterixRuntimeState; |
| import edu.uci.ics.asterix.installer.service.ServiceProvider; |
| |
| public class DescribeCommand extends AbstractCommand { |
| |
| @Override |
| protected void execCommand() throws Exception { |
| InstallerDriver.initConfig(); |
| String asterixInstanceName = ((DescribeConfig) config).name; |
| boolean adminView = ((DescribeConfig) config).admin; |
| if (asterixInstanceName != null) { |
| InstallerUtil.validateAsterixInstanceExists(asterixInstanceName, |
| State.INACTIVE, State.ACTIVE, State.UNUSABLE); |
| AsterixInstance instance = ServiceProvider.INSTANCE |
| .getLookupService().getAsterixInstance(asterixInstanceName); |
| if (instance != null) { |
| AsterixRuntimeState state = VerificationUtil |
| .getAsterixRuntimeState(instance); |
| boolean expectedRunning = instance.getState().equals( |
| State.UNUSABLE) ? instance.getPreviousState().equals( |
| State.ACTIVE) : !instance.getState().equals( |
| State.INACTIVE); |
| VerificationUtil.updateInstanceWithRuntimeDescription(instance, |
| state, expectedRunning); |
| ServiceProvider.INSTANCE.getLookupService() |
| .updateAsterixInstance(instance); |
| LOGGER.info(instance.getDescription(adminView)); |
| } else { |
| throw new InstallerException("Asterix instance by the name " |
| + asterixInstanceName + " does not exist."); |
| } |
| } else { |
| List<AsterixInstance> asterixInstances = ServiceProvider.INSTANCE |
| .getLookupService().getAsterixInstances(); |
| if (asterixInstances.size() > 0) { |
| for (AsterixInstance instance : asterixInstances) { |
| AsterixRuntimeState state = VerificationUtil |
| .getAsterixRuntimeState(instance); |
| boolean expectedRunning = instance.getState().equals( |
| State.UNUSABLE) ? instance.getPreviousState() |
| .equals(State.ACTIVE) : !instance.getState() |
| .equals(State.INACTIVE); |
| VerificationUtil.updateInstanceWithRuntimeDescription( |
| instance, state, expectedRunning); |
| ServiceProvider.INSTANCE.getLookupService() |
| .updateAsterixInstance(instance); |
| LOGGER.info(instance.getDescription(adminView)); |
| } |
| } else { |
| LOGGER.info("No Asterix instances found!"); |
| } |
| |
| } |
| } |
| |
| @Override |
| protected CommandConfig getCommandConfig() { |
| return new DescribeConfig(); |
| } |
| |
| @Override |
| protected String getUsageDescription() { |
| return "\nProvides information about an ASTERIX instance." |
| + "\n\nUsage arguments/options:-" |
| + "\n[-n] Name of the ASTERIX instance." |
| + "\n[-admin] Provides a detailed description"; |
| } |
| |
| } |
| |
| class DescribeConfig extends AbstractCommandConfig { |
| |
| @Option(name = "-n", required = false, usage = "Name of Asterix Instance") |
| public String name; |
| |
| @Option(name = "-admin", required = false, usage = "Detailed description") |
| public boolean admin; |
| |
| } |