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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.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.xcontent.XContentBuilder;
import com.spatial4j.core.shape.Shape;
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;
import java.util.Objects;
public class MultiLineStringBuilder extends ShapeBuilder {
public static final GeoShapeType TYPE = GeoShapeType.MULTILINESTRING;
public static final MultiLineStringBuilder PROTOTYPE = new MultiLineStringBuilder();
private final ArrayList<LineStringBuilder> lines = new ArrayList<>();
public MultiLineStringBuilder linestring(LineStringBuilder line) {
this.lines.add(line);
return this;
}
public MultiLineStringBuilder linestring(Coordinate[] coordinates) {
return this.linestring(new LineStringBuilder().points(coordinates));
}
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(LineStringBuilder 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 (LineStringBuilder line : lines) {
LineStringBuilder.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<LineStringBuilder> 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);
}
@Override
public int hashCode() {
return Objects.hash(lines);
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null || getClass() != obj.getClass()) {
return false;
}
MultiLineStringBuilder other = (MultiLineStringBuilder) obj;
return Objects.equals(lines, other.lines);
}
@Override
public void writeTo(StreamOutput out) throws IOException {
out.writeVInt(lines.size());
for (LineStringBuilder line : lines) {
line.writeTo(out);
}
}
@Override
public MultiLineStringBuilder readFrom(StreamInput in) throws IOException {
MultiLineStringBuilder multiLineStringBuilder = new MultiLineStringBuilder();
int size = in.readVInt();
for (int i = 0; i < size; i++) {
multiLineStringBuilder.linestring(LineStringBuilder.PROTOTYPE.readFrom(in));
}
return multiLineStringBuilder;
}
}
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