/*
* Licensed to ElasticSearch and Shay Banon 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.facet.statistical;
import com.google.common.collect.Maps;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.index.query.FilterBuilder;
import org.elasticsearch.search.builder.SearchSourceBuilderException;
import org.elasticsearch.search.facet.AbstractFacetBuilder;
import java.io.IOException;
import java.util.Map;
/**
*
*/
public class StatisticalScriptFacetBuilder extends AbstractFacetBuilder {
private String lang;
private String script;
private Map<String, Object> params;
public StatisticalScriptFacetBuilder(String name) {
super(name);
}
/**
* Marks the facet to run in a global scope, not bounded by any query.
*/
public StatisticalScriptFacetBuilder global(boolean global) {
super.global(global);
return this;
}
/**
* Marks the facet to run in a specific scope.
*/
@Override
public AbstractFacetBuilder scope(String scope) {
super.scope(scope);
return this;
}
public StatisticalScriptFacetBuilder facetFilter(FilterBuilder filter) {
this.facetFilter = filter;
return this;
}
/**
* Sets the nested path the facet will execute on. A match (root object) will then cause all the
* nested objects matching the path to be computed into the facet.
*/
public StatisticalScriptFacetBuilder nested(String nested) {
this.nested = nested;
return this;
}
/**
* The language of the script.
*/
public StatisticalScriptFacetBuilder lang(String lang) {
this.lang = lang;
return this;
}
public StatisticalScriptFacetBuilder script(String script) {
this.script = script;
return this;
}
public StatisticalScriptFacetBuilder param(String name, Object value) {
if (params == null) {
params = Maps.newHashMap();
}
params.put(name, value);
return this;
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
if (script == null) {
throw new SearchSourceBuilderException("script must be set on statistical script facet [" + name + "]");
}
builder.startObject(name);
builder.startObject(StatisticalFacet.TYPE);
builder.field("script", script);
if (lang != null) {
builder.field("lang", lang);
}
if (this.params != null) {
builder.field("params", this.params);
}
builder.endObject();
addFilterFacetAndGlobal(builder, params);
builder.endObject();
return builder;
}
}