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Open Source, Distributed, RESTful Search Engine
/*
* 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.search.facet.filter;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentBuilderString;
import org.elasticsearch.search.facet.Facet;
import org.elasticsearch.search.facet.internal.InternalFacet;
import java.io.IOException;
/**
* @author kimchy (shay.banon)
*/
public class InternalFilterFacet implements FilterFacet, InternalFacet {
private String name;
private long count;
private InternalFilterFacet() {
}
public InternalFilterFacet(String name, long count) {
this.name = name;
this.count = count;
}
@Override public Type type() {
return Type.FILTER;
}
@Override public Type getType() {
return type();
}
/**
* The "logical" name of the facet.
*/
public String name() {
return name;
}
@Override public String getName() {
return name();
}
/**
* The count of the facet.
*/
public long count() {
return count;
}
/**
* The count of the facet.
*/
public long getCount() {
return count;
}
@Override public Facet aggregate(Iterable facets) {
int count = 0;
for (Facet facet : facets) {
if (facet.name().equals(name)) {
count += ((FilterFacet) facet).count();
}
}
return new InternalFilterFacet(name, count);
}
static final class Fields {
static final XContentBuilderString _TYPE = new XContentBuilderString("_type");
static final XContentBuilderString COUNT = new XContentBuilderString("count");
}
@Override public void toXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject(name);
builder.field(Fields._TYPE, FilterFacetCollectorParser.NAME);
builder.field(Fields.COUNT, count);
builder.endObject();
}
public static FilterFacet readFilterFacet(StreamInput in) throws IOException {
InternalFilterFacet result = new InternalFilterFacet();
result.readFrom(in);
return result;
}
@Override public void readFrom(StreamInput in) throws IOException {
name = in.readUTF();
count = in.readVLong();
}
@Override public void writeTo(StreamOutput out) throws IOException {
out.writeUTF(name);
out.writeVLong(count);
}
}