/*
* 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.search;
/**
* Base implementation for an async action.
*/
abstract class AbstractAsyncAction {
private final long startTime;
protected AbstractAsyncAction() { this(System.currentTimeMillis());}
protected AbstractAsyncAction(long startTime) {
this.startTime = startTime;
}
/**
* Return the time when the action started.
*/
protected final long startTime() {
return startTime;
}
/**
* Builds how long it took to execute the search.
*/
protected final long buildTookInMillis() {
// protect ourselves against time going backwards
// negative values don't make sense and we want to be able to serialize that thing as a vLong
return Math.max(1, System.currentTimeMillis() - startTime);
}
abstract void start();
}