| // $Id$ |
| // |
| // 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. |
| // |
| using System; |
| |
| namespace Org.Apache.Etch.Bindings.Csharp.Util |
| { |
| /// <summary> |
| /// Generic implementation of Startable |
| /// </summary> |
| abstract public class AbstractStartable : Startable |
| { |
| public void Start() |
| { |
| lock (this) |
| { |
| if (IsStarted()) |
| throw new Exception("is already started"); |
| SetStarted(); |
| } |
| |
| try |
| { |
| Start0(); |
| } |
| catch (Exception) |
| { |
| Stop(); |
| throw; |
| } |
| } |
| |
| public void Stop() |
| { |
| lock (this) |
| { |
| CheckIsStarted(); |
| SetStopped(); |
| } |
| |
| Stop0(); |
| } |
| |
| private bool started; |
| |
| private void SetStarted() |
| { |
| started = true; |
| } |
| |
| protected void SetStopped() |
| { |
| started = false; |
| } |
| |
| public bool IsStarted() |
| { |
| return started; |
| } |
| |
| /// <summary> |
| /// Check that the startable is started |
| /// Exception: |
| /// ThreadInterruptedException if not started |
| /// </summary> |
| /// |
| public void CheckIsStarted() |
| { |
| if (!IsStarted()) |
| throw new Exception("is not started"); |
| } |
| |
| /// <summary> |
| /// |
| /// </summary> |
| /// Exception: |
| /// throws Exception |
| abstract protected void Start0(); |
| |
| /// <summary> |
| /// |
| /// </summary> |
| /// Exception: |
| /// throws Exception |
| abstract protected void Stop0(); |
| |
| } |
| } |