Package org.elasticsearch.action.support

Source Code of org.elasticsearch.action.support.AdapterActionFuture

/*
* Licensed to Elastic Search and Shay Banon under one
* or more contributor license agreements.  See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. Elastic Search 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.support;

import org.elasticsearch.ElasticSearchException;
import org.elasticsearch.ElasticSearchInterruptedException;
import org.elasticsearch.ElasticSearchTimeoutException;
import org.elasticsearch.action.ActionFuture;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.common.unit.TimeValue;
import org.elasticsearch.common.util.concurrent.AbstractFuture;
import org.elasticsearch.common.util.concurrent.UncategorizedExecutionException;

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

/**
* @author kimchy (shay.banon)
*/
public abstract class AdapterActionFuture<T, L> extends AbstractFuture<T> implements ActionFuture<T>, ActionListener<L> {

    @Override public T actionGet() throws ElasticSearchException {
        try {
            return get();
        } catch (InterruptedException e) {
            throw new ElasticSearchInterruptedException(e.getMessage());
        } catch (ExecutionException e) {
            if (e.getCause() instanceof ElasticSearchException) {
                throw (ElasticSearchException) e.getCause();
            } else {
                throw new UncategorizedExecutionException("Failed execution", e);
            }
        }
    }

    @Override public T actionGet(String timeout) throws ElasticSearchException {
        return actionGet(TimeValue.parseTimeValue(timeout, null));
    }

    @Override public T actionGet(long timeoutMillis) throws ElasticSearchException {
        return actionGet(timeoutMillis, TimeUnit.MILLISECONDS);
    }

    @Override public T actionGet(TimeValue timeout) throws ElasticSearchException {
        return actionGet(timeout.millis(), TimeUnit.MILLISECONDS);
    }

    @Override public T actionGet(long timeout, TimeUnit unit) throws ElasticSearchException {
        try {
            return get(timeout, unit);
        } catch (TimeoutException e) {
            throw new ElasticSearchTimeoutException(e.getMessage());
        } catch (InterruptedException e) {
            throw new ElasticSearchInterruptedException(e.getMessage());
        } catch (ExecutionException e) {
            if (e.getCause() instanceof ElasticSearchException) {
                throw (ElasticSearchException) e.getCause();
            } else {
                throw new UncategorizedExecutionException("Failed execution", e);
            }
        }
    }

    @Override public void onResponse(L result) {
        set(convert(result));
    }

    @Override public void onFailure(Throwable e) {
        setException(e);
    }

    protected abstract T convert(L listenerResponse);
}
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