| /* |
| * 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.io.IOException; |
| |
| /** |
| * Provides a managed service factory for launching processes based on a certain launch |
| * configuration. |
| */ |
| public interface ProcessLauncherService { |
| |
| /** The service PID that is used for registration of this service factory. */ |
| String PID = "org.apache.ace.processlauncher"; |
| |
| /** |
| * Returns the number of launch configurations currently available. |
| * |
| * @return the number of launch configurations, >= 0. |
| */ |
| int getLaunchConfigurationCount(); |
| |
| /** |
| * Returns the number of running processes. |
| * |
| * @return a running process count, >= 0. |
| * @throws IOException in case of I/O problems determining the number of running processes. |
| */ |
| int getRunningProcessCount() throws IOException; |
| |
| } |