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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.search.aggregations.metrics.scripted;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.script.Script;
import org.elasticsearch.search.aggregations.metrics.MetricsAggregationBuilder;
import java.io.IOException;
import java.util.Map;
/**
* Builder for the {@link ScriptedMetric} aggregation.
*/
public class ScriptedMetricBuilder extends MetricsAggregationBuilder<ScriptedMetricBuilder> {
private Script initScript = null;
private Script mapScript = null;
private Script combineScript = null;
private Script reduceScript = null;
private Map<String, Object> params = null;
/**
* Sole constructor.
*/
public ScriptedMetricBuilder(String name) {
super(name, InternalScriptedMetric.TYPE.name());
}
/**
* Set the <tt>init</tt> script.
*/
public ScriptedMetricBuilder initScript(Script initScript) {
this.initScript = initScript;
return this;
}
/**
* Set the <tt>map</tt> script.
*/
public ScriptedMetricBuilder mapScript(Script mapScript) {
this.mapScript = mapScript;
return this;
}
/**
* Set the <tt>combine</tt> script.
*/
public ScriptedMetricBuilder combineScript(Script combineScript) {
this.combineScript = combineScript;
return this;
}
/**
* Set the <tt>reduce</tt> script.
*/
public ScriptedMetricBuilder reduceScript(Script reduceScript) {
this.reduceScript = reduceScript;
return this;
}
/**
* Set parameters that will be available in the <tt>init</tt>, <tt>map</tt>
* and <tt>combine</tt> phases.
*/
public ScriptedMetricBuilder params(Map<String, Object> params) {
this.params = params;
return this;
}
@Override
protected void internalXContent(XContentBuilder builder, Params builderParams) throws IOException {
if (initScript != null) {
builder.field(ScriptedMetricParser.INIT_SCRIPT_FIELD.getPreferredName(), initScript);
}
if (mapScript != null) {
builder.field(ScriptedMetricParser.MAP_SCRIPT_FIELD.getPreferredName(), mapScript);
}
if (combineScript != null) {
builder.field(ScriptedMetricParser.COMBINE_SCRIPT_FIELD.getPreferredName(), combineScript);
}
if (reduceScript != null) {
builder.field(ScriptedMetricParser.REDUCE_SCRIPT_FIELD.getPreferredName(), reduceScript);
}
if (params != null) {
builder.field(ScriptedMetricParser.PARAMS_FIELD.getPreferredName());
builder.map(params);
}
}
}
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