org.camunda.bpm.engine.impl.util.SyncFuture Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of camunda-engine Show documentation

There is a newer version: 7.23.0-alpha2

/* 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.camunda.bpm.engine.impl.util;

import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

/**
 * @author Daniel Meyer
 *
 */
public class SyncFuture implements Future {

  private V result;
  private Throwable e;
  
  public SyncFuture(V result) {
    this.result = result;
  }
  
  public SyncFuture(Throwable e) {
    this.e = e;
  }
  
  public boolean cancel(boolean mayInterruptIfRunning) {
    return false;
  }

  public boolean isCancelled() {
    return false;
  }

  public boolean isDone() {
    return true;
  }

  public V get() throws InterruptedException, ExecutionException {
    if(e==null) {
      return result;
    } else { 
      throw new ExecutionException(e); 
    }
  }

  public V get(long timeout, TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException {
    return get();
  }

}