| /* |
| * 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.cassandra.concurrent; |
| |
| import java.util.concurrent.Callable; |
| |
| import org.apache.cassandra.utils.Closeable; |
| import org.apache.cassandra.utils.WithResources; |
| import org.apache.cassandra.utils.concurrent.RunnableFuture; |
| import org.apache.cassandra.utils.concurrent.SyncFuture; |
| |
| public class SyncFutureTask<T> extends SyncFuture<T> implements RunnableFuture<T> |
| { |
| final Callable<T> call; |
| |
| public SyncFutureTask(Callable<T> call) |
| { |
| this.call = call; |
| } |
| |
| public SyncFutureTask(WithResources withResources, Callable<T> call) |
| { |
| this.call = new Callable<T>() |
| { |
| @Override |
| public T call() throws Exception |
| { |
| try (Closeable close = withResources.get()) |
| { |
| return call.call(); |
| } |
| } |
| |
| @Override |
| public String toString() |
| { |
| return call.toString(); |
| } |
| }; |
| } |
| |
| public void run() |
| { |
| try |
| { |
| if (!setUncancellable()) |
| { |
| if (isCancelled()) return; |
| else throw new IllegalStateException(); |
| } |
| |
| if (!trySuccess(call.call())) |
| throw new IllegalStateException(); |
| } |
| catch (Throwable t) |
| { |
| tryFailure(t); |
| ExecutionFailure.handle(t); |
| } |
| } |
| |
| @Override |
| public String description() |
| { |
| return call.toString(); |
| } |
| } |