| /** |
| * Licensed to jclouds, Inc. (jclouds) under one or more |
| * contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. jclouds 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.jclouds.compute.callables; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| import java.io.File; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| import javax.inject.Named; |
| import javax.inject.Singleton; |
| |
| import org.jclouds.scriptbuilder.InitScript; |
| |
| import com.google.common.base.Supplier; |
| import com.google.inject.Inject; |
| |
| /** |
| * |
| * @author Adrian Cole |
| */ |
| @Singleton |
| public class InitScriptConfigurationForTasks { |
| public static final String PROPERTY_INIT_SCRIPT_PATTERN = "jclouds.compute.init-script-pattern"; |
| |
| public static InitScriptConfigurationForTasks create() { |
| return new InitScriptConfigurationForTasks(); |
| } |
| |
| private String basedir = "/tmp"; |
| private String initScriptPattern = basedir + "/init-%s"; |
| private Supplier<String> suffixSupplier; |
| |
| protected InitScriptConfigurationForTasks() { |
| appendCurrentTimeMillisToAnonymousTaskNames(); |
| } |
| |
| @Inject(optional = true) |
| public InitScriptConfigurationForTasks initScriptPattern( |
| @Named(PROPERTY_INIT_SCRIPT_PATTERN) String initScriptPattern) { |
| this.initScriptPattern = checkNotNull(initScriptPattern, "initScriptPattern ex. /tmp/init-%s"); |
| this.basedir = new File(initScriptPattern).getParent(); |
| return this; |
| } |
| |
| public InitScriptConfigurationForTasks appendCurrentTimeMillisToAnonymousTaskNames() { |
| this.suffixSupplier = new Supplier<String>() { |
| |
| @Override |
| public String get() { |
| return System.currentTimeMillis() + ""; |
| } |
| |
| @Override |
| public String toString() { |
| return "currentTimeMillis()"; |
| } |
| }; |
| return this; |
| } |
| |
| public InitScriptConfigurationForTasks appendIncrementingNumberToAnonymousTaskNames() { |
| this.suffixSupplier = new Supplier<String>() { |
| private final AtomicInteger integer = new AtomicInteger(); |
| |
| @Override |
| public String get() { |
| return integer.getAndIncrement() + ""; |
| } |
| |
| @Override |
| public String toString() { |
| return "incrementingNumber()"; |
| } |
| }; |
| return this; |
| } |
| |
| /** |
| * Directory where the init script is stored. the runtime directory of the process will be in |
| * this dir/taskName |
| */ |
| public String getBasedir() { |
| return basedir; |
| } |
| |
| /** |
| * |
| * @return the naming convention of init scripts. ex. {@code /tmp/init-%s}, noting logs are under |
| * the basedir/%s where %s is the taskName |
| * @see InitScript#getHomeDir |
| * @see InitScript#getLogDir |
| */ |
| public String getInitScriptPattern() { |
| return initScriptPattern; |
| } |
| |
| /** |
| * @return suffix where the taskName isn't set. by default this is |
| * {@link System#currentTimeMillis} |
| * @see #appendCurrentTimeMillisToAnonymousTaskNames |
| * @see #appendIncrementingNumberToAnonymousTaskNames |
| */ |
| public Supplier<String> getAnonymousTaskSuffixSupplier() { |
| return suffixSupplier; |
| } |
| } |