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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.index.query;
import org.elasticsearch.common.geo.ShapeRelation;
import org.elasticsearch.common.geo.SpatialStrategy;
import org.elasticsearch.common.geo.builders.ShapeBuilder;
import org.elasticsearch.common.xcontent.XContentBuilder;
import java.io.IOException;
/**
* {@link FilterBuilder} that builds a GeoShape Filter
*/
public class GeoShapeFilterBuilder extends BaseFilterBuilder {
private final String name;
private final ShapeBuilder shape;
private SpatialStrategy strategy = null;
private Boolean cache;
private String cacheKey;
private String filterName;
private final String indexedShapeId;
private final String indexedShapeType;
private String indexedShapeIndex;
private String indexedShapePath;
private ShapeRelation relation = null;
/**
* Creates a new GeoShapeFilterBuilder whose Filter will be against the
* given field name using the given Shape
*
* @param name Name of the field that will be filtered
* @param shape Shape used in the filter
*/
public GeoShapeFilterBuilder(String name, ShapeBuilder shape) {
this(name, shape, null, null, null);
}
/**
* Creates a new GeoShapeFilterBuilder whose Filter will be against the
* given field name using the given Shape
*
* @param name Name of the field that will be filtered
* @param relation {@link ShapeRelation} of query and indexed shape
* @param shape Shape used in the filter
*/
public GeoShapeFilterBuilder(String name, ShapeBuilder shape, ShapeRelation relation) {
this(name, shape, null, null, relation);
}
/**
* Creates a new GeoShapeFilterBuilder whose Filter will be against the given field name
* and will use the Shape found with the given ID in the given type
*
* @param name Name of the field that will be filtered
* @param indexedShapeId ID of the indexed Shape that will be used in the Filter
* @param indexedShapeType Index type of the indexed Shapes
*/
public GeoShapeFilterBuilder(String name, String indexedShapeId, String indexedShapeType, ShapeRelation relation) {
this(name, null, indexedShapeId, indexedShapeType, relation);
}
private GeoShapeFilterBuilder(String name, ShapeBuilder shape, String indexedShapeId, String indexedShapeType, ShapeRelation relation) {
this.name = name;
this.shape = shape;
this.indexedShapeId = indexedShapeId;
this.relation = relation;
this.indexedShapeType = indexedShapeType;
}
/**
* Sets whether the filter will be cached.
*
* @param cache Whether filter will be cached
* @return this
*/
public GeoShapeFilterBuilder cache(boolean cache) {
this.cache = cache;
return this;
}
/**
* Sets the key used for the filter if it is cached
*
* @param cacheKey Key for the Filter if cached
* @return this
*/
public GeoShapeFilterBuilder cacheKey(String cacheKey) {
this.cacheKey = cacheKey;
return this;
}
/**
* Sets the name of the filter
*
* @param filterName Name of the filter
* @return this
*/
public GeoShapeFilterBuilder filterName(String filterName) {
this.filterName = filterName;
return this;
}
/**
* Defines which spatial strategy will be used for building the geo shape filter. When not set, the strategy that
* will be used will be the one that is associated with the geo shape field in the mappings.
*
* @param strategy The spatial strategy to use for building the geo shape filter
* @return this
*/
public GeoShapeFilterBuilder strategy(SpatialStrategy strategy) {
this.strategy = strategy;
return this;
}
/**
* Sets the name of the index where the indexed Shape can be found
*
* @param indexedShapeIndex Name of the index where the indexed Shape is
* @return this
*/
public GeoShapeFilterBuilder indexedShapeIndex(String indexedShapeIndex) {
this.indexedShapeIndex = indexedShapeIndex;
return this;
}
/**
* Sets the path of the field in the indexed Shape document that has the Shape itself
*
* @param indexedShapePath Path of the field where the Shape itself is defined
* @return this
*/
public GeoShapeFilterBuilder indexedShapePath(String indexedShapePath) {
this.indexedShapePath = indexedShapePath;
return this;
}
/**
* Sets the relation of query shape and indexed shape.
*
* @param relation relation of the shapes
* @return this
*/
public GeoShapeFilterBuilder relation(ShapeRelation relation) {
this.relation = relation;
return this;
}
@Override
protected void doXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject(GeoShapeFilterParser.NAME);
builder.startObject(name);
if (strategy != null) {
builder.field("strategy", strategy.getStrategyName());
}
if (shape != null) {
builder.field("shape", shape);
} else {
builder.startObject("indexed_shape")
.field("id", indexedShapeId)
.field("type", indexedShapeType);
if (indexedShapeIndex != null) {
builder.field("index", indexedShapeIndex);
}
if (indexedShapePath != null) {
builder.field("path", indexedShapePath);
}
builder.endObject();
}
if(relation != null) {
builder.field("relation", relation.getRelationName());
}
builder.endObject();
if (name != null) {
builder.field("_name", filterName);
}
if (cache != null) {
builder.field("_cache", cache);
}
if (cacheKey != null) {
builder.field("_cache_key", cacheKey);
}
builder.endObject();
}
}