GeoReference.java example

Explorer
crate-master
/*
 * Licensed to CRATE Technology GmbH ("Crate") under one or more contributor
 * license agreements.  See the NOTICE file distributed with this work for
 * additional information regarding copyright ownership.  Crate 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.
 *
 * However, if you have executed another commercial license agreement
 * with Crate these terms will supersede the license and you may use the
 * software solely pursuant to the terms of the relevant commercial agreement.
 */

package io.crate.metadata;

import com.google.common.base.MoreObjects;
import com.google.common.base.Objects;
import io.crate.analyze.symbol.SymbolType;
import io.crate.types.DataTypes;
import org.elasticsearch.common.Nullable;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;

import java.io.IOException;

public class GeoReference extends Reference {

    private static final String DEFAULT_TREE = "geohash";

    private final String geoTree;

    @Nullable
    private final String precision;

    @Nullable
    private final Integer treeLevels;

    @Nullable
    private final Double distanceErrorPct;

    public GeoReference(ReferenceIdent ident,
                        @Nullable String tree,
                        @Nullable String precision,
                        @Nullable Integer treeLevels,
                        @Nullable Double distanceErrorPct) {
        super(ident, RowGranularity.DOC, DataTypes.GEO_SHAPE);
        this.geoTree = MoreObjects.firstNonNull(tree, DEFAULT_TREE);
        this.precision = precision;
        this.treeLevels = treeLevels;
        this.distanceErrorPct = distanceErrorPct;
    }

    @Override
    public SymbolType symbolType() {
        return SymbolType.GEO_REFERENCE;
    }

    public String geoTree() {
        return geoTree;
    }

    @Nullable
    public String precision() {
        return precision;
    }

    @Nullable
    public Integer treeLevels() {
        return treeLevels;
    }

    @Nullable
    public Double distanceErrorPct() {
        return distanceErrorPct;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        if (!super.equals(o)) return false;
        GeoReference that = (GeoReference) o;
        return Objects.equal(geoTree, that.geoTree) &&
               Objects.equal(precision, that.precision) &&
               Objects.equal(treeLevels, that.treeLevels) &&
               Objects.equal(distanceErrorPct, that.distanceErrorPct);
    }

    @Override
    public int hashCode() {
        return Objects.hashCode(super.hashCode(), geoTree, precision, treeLevels, distanceErrorPct);
    }

    @Override
    public String toString() {
        return "GeoReference{" +
               "geoTree='" + geoTree + '\'' +
               ", precision=" + precision +
               ", treeLevels=" + treeLevels +
               ", distanceErrorPct=" + distanceErrorPct +
               '}';
    }

    public GeoReference(StreamInput in) throws IOException {
        super(in);
        geoTree = in.readString();
        precision = in.readOptionalString();
        treeLevels = in.readBoolean() ? null : in.readVInt();
        distanceErrorPct = in.readBoolean() ? null : in.readDouble();
    }

    @Override
    public void writeTo(StreamOutput out) throws IOException {
        super.writeTo(out);
        out.writeString(geoTree);
        out.writeOptionalString(precision);
        out.writeBoolean(treeLevels == null);
        if (treeLevels != null) {
            out.writeVInt(treeLevels);
        }
        out.writeBoolean(distanceErrorPct == null);
        if (distanceErrorPct != null) {
            out.writeDouble(distanceErrorPct);
        }
    }
}