| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 at |
| * |
| * 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 org.apache.hadoop.service.launcher.testservices; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.service.launcher.LaunchableService; |
| import org.apache.hadoop.service.launcher.LauncherExitCodes; |
| import org.junit.Assert; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.List; |
| |
| /** |
| * A service which implements {@link LaunchableService}. |
| * It |
| * <ol> |
| * <li>does nothing in its {@link #serviceStart()}</li> |
| * <li>does its sleep+ maybe fail operation in its {@link #execute()} |
| * method</li> |
| * <li>gets the failing flag from the argument {@link #ARG_FAILING} first, |
| * the config file second.</li> |
| * <li>returns 0 for a successful execute</li> |
| * <li>returns a configurable exit code for a failing execute</li> |
| * <li>generates a new configuration in {@link #bindArgs(Configuration, List)} |
| * to verify that these propagate.</li> |
| * </ol> |
| */ |
| public class LaunchableRunningService extends RunningService implements |
| LaunchableService { |
| public static final String NAME = |
| "org.apache.hadoop.service.launcher.testservices.LaunchableRunningService"; |
| public static final String ARG_FAILING = "--failing"; |
| public static final String EXIT_CODE_PROP = "exit.code"; |
| private static final Logger LOG = |
| LoggerFactory.getLogger(LaunchableRunningService.class); |
| private int exitCode = 0; |
| |
| public LaunchableRunningService() { |
| this("LaunchableRunningService"); |
| } |
| |
| public LaunchableRunningService(String name) { |
| super(name); |
| } |
| |
| @Override |
| public Configuration bindArgs(Configuration config, List<String> args) throws |
| Exception { |
| Assert.assertEquals(STATE.NOTINITED, getServiceState()); |
| for (String arg : args) { |
| LOG.info(arg); |
| } |
| Configuration newConf = new Configuration(config); |
| if (args.contains(ARG_FAILING)) { |
| LOG.info("CLI contains " + ARG_FAILING); |
| failInRun = true; |
| newConf.setInt(EXIT_CODE_PROP, LauncherExitCodes.EXIT_OTHER_FAILURE); |
| } |
| return newConf; |
| } |
| |
| @Override |
| protected void serviceInit(Configuration conf) throws Exception { |
| super.serviceInit(conf); |
| if (conf.getBoolean(FAIL_IN_RUN, false)) { |
| //if the conf value says fail, the exit code goes to it too |
| exitCode = LauncherExitCodes.EXIT_FAIL; |
| } |
| // the exit code can be read off the property |
| exitCode = conf.getInt(EXIT_CODE_PROP, exitCode); |
| } |
| |
| @Override |
| protected void serviceStart() throws Exception { |
| // no-op |
| } |
| |
| @Override |
| public int execute() throws Exception { |
| Thread.sleep(delayTime); |
| if (failInRun) { |
| return exitCode; |
| } |
| return 0; |
| } |
| |
| public int getExitCode() { |
| return exitCode; |
| } |
| |
| public void setExitCode(int exitCode) { |
| this.exitCode = exitCode; |
| } |
| } |