| /* |
| * 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.twill.internal; |
| |
| import org.apache.twill.api.LocalFile; |
| |
| import java.util.Map; |
| |
| /** |
| * Class for launching container process. |
| * |
| * @param <T> Type of the object that contains information about the container that the process is going to launch. |
| */ |
| public interface ProcessLauncher<T extends ResourceCapability> { |
| |
| /** |
| * Returns information about the container that this launch would launch process in. |
| */ |
| T getContainerInfo(); |
| |
| /** |
| * Returns a preparer with the given default set of environments, resources and credentials. |
| */ |
| <C> PrepareLaunchContext prepareLaunch(Map<String, String> environments, |
| Iterable<LocalFile> resources, C credentials); |
| |
| /** |
| * For setting up the launcher. |
| */ |
| interface PrepareLaunchContext { |
| |
| /** |
| * Adds list of files to be localized for the container. |
| */ |
| PrepareLaunchContext addResources(LocalFile...localFiles); |
| |
| /** |
| * Adds list of files to be localized for the container. |
| */ |
| PrepareLaunchContext addResources(Iterable<LocalFile> localFiles); |
| |
| /** |
| * Adds a key value pair to the container environment. |
| */ |
| <V> PrepareLaunchContext addEnvironment(String key, V value); |
| |
| /** |
| * Adds a command line to run in the container process. |
| */ |
| PrepareLaunchContext addCommand(String cmd, String...args); |
| |
| /** |
| * Launches the container process. |
| */ |
| <R> ProcessController<R> launch(); |
| } |
| } |