| /* |
| * Copyright 2000-2012 JetBrains s.r.o. |
| * |
| * Licensed 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.jetbrains.idea.svn.svnkit.lowLevel; |
| |
| import com.intellij.openapi.Disposable; |
| import com.intellij.openapi.progress.ProcessCanceledException; |
| |
| import java.util.concurrent.atomic.AtomicReference; |
| |
| /** |
| * Created with IntelliJ IDEA. |
| * User: Irina.Chernushina |
| * Date: 8/15/12 |
| * Time: 3:03 PM |
| */ |
| public abstract class QuicklyDisposableProxy<T> implements Disposable { |
| private final AtomicReference<T> myRef; |
| |
| protected QuicklyDisposableProxy(final T t) { |
| myRef = new AtomicReference<T>(t); |
| } |
| |
| @Override |
| public void dispose() { |
| myRef.set(null); |
| } |
| |
| protected T getRef() { |
| T t = myRef.get(); |
| if (t == null) throw new ProcessCanceledException(); |
| return t; |
| } |
| } |