Mercurial > hg > release > thermostat-0.9
view agent/cli/src/main/java/com/redhat/thermostat/agent/cli/impl/db/StorageCommand.java @ 1067:f0f0027e0724
Hide CommandInfo and reduce Command interface
Reviewed-by: vanaltj
Review-thread: http://icedtea.classpath.org/pipermail/thermostat/2013-April/006349.html
author | Omair Majid <omajid@redhat.com> |
---|---|
date | Wed, 17 Apr 2013 14:34:38 -0400 |
parents | 3f0416e9db80 |
children | c469675494d7 |
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/* * Copyright 2012, 2013 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.cli.impl.db; import java.io.File; import java.io.IOException; import com.redhat.thermostat.common.ExitStatus; import com.redhat.thermostat.common.cli.AbstractStateNotifyingCommand; import com.redhat.thermostat.common.cli.Arguments; import com.redhat.thermostat.common.cli.CommandContext; import com.redhat.thermostat.common.cli.CommandException; import com.redhat.thermostat.common.config.Configuration; import com.redhat.thermostat.common.config.InvalidConfigurationException; import com.redhat.thermostat.common.tools.ApplicationException; import com.redhat.thermostat.common.tools.ApplicationState; public class StorageCommand extends AbstractStateNotifyingCommand { private DBStartupConfiguration configuration; private DBOptionParser parser; private final ExitStatus exitStatus; private MongoProcessRunner runner; public StorageCommand(ExitStatus exitStatus) { this.exitStatus = exitStatus; } private void parseArguments(Arguments args) throws InvalidConfigurationException { Configuration thermostatConfiguration = new Configuration(); File dbPath = thermostatConfiguration.getStorageDirectory(); File logFile = thermostatConfiguration.getStorageLogFile(); File pidFile = thermostatConfiguration.getStoragePidFile(); File propertyFile = thermostatConfiguration.getStorageConfigurationFile(); if (!propertyFile.exists()) { throw new InvalidConfigurationException("can't access database configuration file " + propertyFile); } // read everything that is in the configs this.configuration = new DBStartupConfiguration(propertyFile, dbPath, logFile, pidFile); parser = new DBOptionParser(configuration, args); parser.parse(); } @Override public void run(CommandContext ctx) throws CommandException { try { parseArgsAndRun(ctx); } catch (InvalidConfigurationException e) { throw new CommandException(e); } } private void parseArgsAndRun(CommandContext ctx) throws InvalidConfigurationException { parseArguments(ctx.getArguments()); // dry run means we don't do anything at all if (parser.isDryRun()) return; runner = createRunner(); try { switch (parser.getAction()) { case START: startService(); break; case STOP: stopService(); break; default: break; } getNotifier().fireAction(ApplicationState.SUCCESS); } catch (InvalidConfigurationException e) { // rethrow throw e; } catch (Exception e) { getNotifier().fireAction(ApplicationState.FAIL, e); } } private void startService() throws IOException, InterruptedException, InvalidConfigurationException, ApplicationException { try { runner.startService(); } catch (ApplicationException | InvalidConfigurationException | IOException e) { // something went wrong set status appropriately. This makes sure // that the JVM exits with this status. exitStatus.setExitStatus(ExitStatus.EXIT_ERROR); // rethrow throw e; } getNotifier().fireAction(ApplicationState.START); } private void stopService() throws IOException, InterruptedException, InvalidConfigurationException, ApplicationException { try { check(); runner.stopService(); } catch (ApplicationException | InvalidConfigurationException | InterruptedException | IOException e) { // something went wrong set status appropriately. This makes sure // that the JVM exits with this status. exitStatus.setExitStatus(ExitStatus.EXIT_ERROR); throw e; } getNotifier().fireAction(ApplicationState.STOP); } MongoProcessRunner createRunner() { return new MongoProcessRunner(configuration, parser.isQuiet()); } private void check() throws InvalidConfigurationException { if (!configuration.getDBPath().exists() || !configuration.getLogFile().getParentFile().exists() || !configuration.getPidFile().getParentFile().exists()) { throw new InvalidConfigurationException("database directories do not exist..."); } } public DBStartupConfiguration getConfiguration() { return configuration; } @Override public boolean isStorageRequired() { return false; } @Override public boolean isAvailableInShell() { return false; } }