| /* |
| * 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.reef.driver.evaluator; |
| |
| import org.apache.reef.runtime.common.files.ClasspathProvider; |
| import org.apache.reef.runtime.common.files.RuntimePathProvider; |
| import org.apache.reef.runtime.common.launch.JavaLaunchCommandBuilder; |
| |
| import java.util.Collections; |
| import java.util.List; |
| |
| /** |
| * Defines the setup of a JVM process. |
| * Users can set JVM options via {@link #setMemory(int)} and {@link #addOption(String)}. |
| * Runtimes can also set JVM options, but should not do so if users have set options by |
| * checking {@link #isOptionSet()}. |
| */ |
| public final class JVMProcess implements EvaluatorProcess { |
| private final JavaLaunchCommandBuilder commandBuilder = new JavaLaunchCommandBuilder(); |
| private final RuntimePathProvider runtimePathProvider; |
| private final ClasspathProvider classpathProvider; |
| private boolean optionSet = false; |
| |
| /** |
| * Instantiated via JVMProcessFactory. |
| */ |
| JVMProcess(final RuntimePathProvider runtimePathProvider, |
| final ClasspathProvider classpathProvider) { |
| this.runtimePathProvider = runtimePathProvider; |
| this.classpathProvider = classpathProvider; |
| } |
| |
| @Override |
| public List<String> getCommandLine() { |
| return commandBuilder |
| .setJavaPath(runtimePathProvider.getPath()) |
| .setClassPath(classpathProvider.getEvaluatorClasspath()) |
| .build(); |
| } |
| |
| @Override |
| public EvaluatorType getType() { |
| return EvaluatorType.JVM; |
| } |
| |
| @Override |
| public JVMProcess setMemory(final int megaBytes) { |
| commandBuilder.setMemory(megaBytes); |
| optionSet = true; |
| return this; |
| } |
| |
| @Override |
| public boolean isOptionSet() { |
| return optionSet; |
| } |
| |
| @Override |
| public JVMProcess setConfigurationFileName(final String configurationFileName) { |
| commandBuilder.setConfigurationFilePaths(Collections.singletonList(configurationFileName)); |
| return this; |
| } |
| |
| @Override |
| public JVMProcess setStandardOut(final String standardOut) { |
| commandBuilder.setStandardOut(standardOut); |
| return this; |
| } |
| |
| @Override |
| public JVMProcess setStandardErr(final String standardErr) { |
| commandBuilder.setStandardErr(standardErr); |
| return this; |
| } |
| |
| /** |
| * Add a JVM option. |
| * @param option The full option, e.g. "-XX:+PrintGCDetails", "-Xms500m" |
| * @return this |
| */ |
| public JVMProcess addOption(final String option) { |
| commandBuilder.addOption(option); |
| optionSet = true; |
| return this; |
| } |
| } |