org.elasticsearch.action.ActionFuture Maven / Gradle / Ivy
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* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.action;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.common.Nullable;
import org.elasticsearch.common.unit.TimeValue;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
/**
* An extension to {@link Future} allowing for simplified "get" operations.
*
*
*/
public interface ActionFuture extends Future {
/**
* Similar to {@link #get()}, just catching the {@link InterruptedException} with
* restoring the interrupted state on the thread and throwing an {@link org.elasticsearch.ElasticsearchIllegalStateException},
* and throwing the actual cause of the {@link java.util.concurrent.ExecutionException}.
*
* Note, the actual cause is unwrapped to the actual failure (for example, unwrapped
* from {@link org.elasticsearch.transport.RemoteTransportException}. The root failure is
* still accessible using {@link #getRootFailure()}.
*/
T actionGet() throws ElasticsearchException;
/**
* Similar to {@link #get(long, java.util.concurrent.TimeUnit)}, just catching the {@link InterruptedException} with
* restoring the interrupted state on the thread and throwing an {@link org.elasticsearch.ElasticsearchIllegalStateException},
* and throwing the actual cause of the {@link java.util.concurrent.ExecutionException}.
*
* Note, the actual cause is unwrapped to the actual failure (for example, unwrapped
* from {@link org.elasticsearch.transport.RemoteTransportException}. The root failure is
* still accessible using {@link #getRootFailure()}.
*/
T actionGet(String timeout) throws ElasticsearchException;
/**
* Similar to {@link #get(long, java.util.concurrent.TimeUnit)}, just catching the {@link InterruptedException} with
* restoring the interrupted state on the thread and throwing an {@link org.elasticsearch.ElasticsearchIllegalStateException},
* and throwing the actual cause of the {@link java.util.concurrent.ExecutionException}.
*
* Note, the actual cause is unwrapped to the actual failure (for example, unwrapped
* from {@link org.elasticsearch.transport.RemoteTransportException}. The root failure is
* still accessible using {@link #getRootFailure()}.
*
* @param timeoutMillis Timeout in millis
*/
T actionGet(long timeoutMillis) throws ElasticsearchException;
/**
* Similar to {@link #get(long, java.util.concurrent.TimeUnit)}, just catching the {@link InterruptedException} with
* restoring the interrupted state on the thread and throwing an {@link org.elasticsearch.ElasticsearchIllegalStateException},
* and throwing the actual cause of the {@link java.util.concurrent.ExecutionException}.
*
* Note, the actual cause is unwrapped to the actual failure (for example, unwrapped
* from {@link org.elasticsearch.transport.RemoteTransportException}. The root failure is
* still accessible using {@link #getRootFailure()}.
*/
T actionGet(long timeout, TimeUnit unit) throws ElasticsearchException;
/**
* Similar to {@link #get(long, java.util.concurrent.TimeUnit)}, just catching the {@link InterruptedException} with
* restoring the interrupted state on the thread and throwing an {@link org.elasticsearch.ElasticsearchIllegalStateException},
* and throwing the actual cause of the {@link java.util.concurrent.ExecutionException}.
*
* Note, the actual cause is unwrapped to the actual failure (for example, unwrapped
* from {@link org.elasticsearch.transport.RemoteTransportException}. The root failure is
* still accessible using {@link #getRootFailure()}.
*/
T actionGet(TimeValue timeout) throws ElasticsearchException;
/**
* The root (possibly) wrapped failure.
*/
@Nullable
Throwable getRootFailure();
}