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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.common.geo.builders;
import org.elasticsearch.common.xcontent.XContentBuilder;
import com.spatial4j.core.shape.Shape;
import com.spatial4j.core.shape.jts.JtsGeometry;
import com.vividsolutions.jts.geom.Coordinate;
import com.vividsolutions.jts.geom.Geometry;
import com.vividsolutions.jts.geom.LineString;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
public class MultiLineStringBuilder extends ShapeBuilder {
public static final GeoShapeType TYPE = GeoShapeType.MULTILINESTRING;
private final ArrayList<BaseLineStringBuilder<?>> lines = new ArrayList<>();
public InternalLineStringBuilder linestring() {
InternalLineStringBuilder line = new InternalLineStringBuilder(this);
this.lines.add(line);
return line;
}
public MultiLineStringBuilder linestring(BaseLineStringBuilder<?> line) {
this.lines.add(line);
return this;
}
public Coordinate[][] coordinates() {
Coordinate[][] result = new Coordinate[lines.size()][];
for (int i = 0; i < result.length; i++) {
result[i] = lines.get(i).coordinates(false);
}
return result;
}
@Override
public GeoShapeType type() {
return TYPE;
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject();
builder.field(FIELD_TYPE, TYPE.shapename);
builder.field(FIELD_COORDINATES);
builder.startArray();
for(BaseLineStringBuilder<?> line : lines) {
line.coordinatesToXcontent(builder, false);
}
builder.endArray();
builder.endObject();
return builder;
}
@Override
public Shape build() {
final Geometry geometry;
if(wrapdateline) {
ArrayList<LineString> parts = new ArrayList<>();
for (BaseLineStringBuilder<?> line : lines) {
BaseLineStringBuilder.decompose(FACTORY, line.coordinates(false), parts);
}
if(parts.size() == 1) {
geometry = parts.get(0);
} else {
LineString[] lineStrings = parts.toArray(new LineString[parts.size()]);
geometry = FACTORY.createMultiLineString(lineStrings);
}
} else {
LineString[] lineStrings = new LineString[lines.size()];
Iterator<BaseLineStringBuilder<?>> iterator = lines.iterator();
for (int i = 0; iterator.hasNext(); i++) {
lineStrings[i] = FACTORY.createLineString(iterator.next().coordinates(false));
}
geometry = FACTORY.createMultiLineString(lineStrings);
}
return jtsGeometry(geometry);
}
public static class InternalLineStringBuilder extends BaseLineStringBuilder<InternalLineStringBuilder> {
private final MultiLineStringBuilder collection;
public InternalLineStringBuilder(MultiLineStringBuilder collection) {
super();
this.collection = collection;
}
public MultiLineStringBuilder end() {
return collection;
}
public Coordinate[] coordinates() {
return super.coordinates(false);
}
@Override
public GeoShapeType type() {
return null;
}
}
}