| /* |
| * Copyright 2000-2011 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 com.intellij.openapi.progress; |
| |
| import com.intellij.openapi.application.ApplicationManager; |
| import com.intellij.util.concurrency.Semaphore; |
| |
| import java.util.concurrent.atomic.AtomicReference; |
| |
| /** |
| * @author irengrig |
| * Date: 6/24/11 |
| * Time: 7:34 PM |
| */ |
| public abstract class BackgroundSynchronousInvisibleComputable<T> { |
| protected abstract T runImpl(); |
| |
| public T compute() { |
| final Semaphore semaphore = new Semaphore(); |
| semaphore.down(); |
| final AtomicReference<T> reference = new AtomicReference<T>(); |
| ApplicationManager.getApplication().executeOnPooledThread(new Runnable() { |
| @Override |
| public void run() { |
| try { |
| reference.set(runImpl()); |
| } |
| finally { |
| semaphore.up(); |
| } |
| } |
| }); |
| semaphore.waitFor(); |
| return reference.get(); |
| } |
| } |