| /* |
| * 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.ace.processlauncher; |
| |
| import java.util.Properties; |
| |
| import aQute.bnd.annotation.ConsumerType; |
| |
| /** |
| * Allows code to be run <em>before</em> a process is actually launched, and <em>after</em> a |
| * process is terminated. |
| * <p> |
| * A typical use case for this would be that you might want to set up some process-specific |
| * directories and/or configuration files for each individually launched process. |
| * </p> |
| */ |
| @ConsumerType |
| public interface ProcessLifecycleListener { |
| |
| /** |
| * Called right before the process denoted by the given launch configuration is started. |
| * <p> |
| * Use this method to set up directories, or pre-process (provisioned) data/configuration files |
| * or other actions that need to be done in order to get the process properly up and running. |
| * </p> |
| * <p> |
| * This method can also adjust the environment of the to-be-created process by returning a |
| * populated {@link Properties} object. |
| * </p> |
| * |
| * @param configuration the launch configuration of the process that is about to start, never |
| * <code>null</code>. |
| * @return the environment properties of the to-be-created process. Can be <code>null</code> if |
| * no additional environment settings are wanted/desired. |
| */ |
| Properties beforeProcessStart(LaunchConfiguration configuration); |
| |
| /** |
| * Called right after the process denoted by the given launch configuration is terminated. |
| * <p> |
| * Use this method to clean up directories. |
| * </p> |
| * |
| * @param configuration the launch configuration of the process that is just terminated, never |
| * <code>null</code>. |
| */ |
| void afterProcessEnd(LaunchConfiguration configuration); |
| } |