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/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0 and the Server Side Public License, v 1; you may not use this file except
* in compliance with, at your election, the Elastic License 2.0 or the Server
* Side Public License, v 1.
*/
package org.elasticsearch.indices;
import org.elasticsearch.TransportVersions;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.io.stream.Writeable;
import org.elasticsearch.core.RestApiVersion;
import org.elasticsearch.index.mapper.MapperService;
import org.elasticsearch.index.query.TermsQueryBuilder;
import org.elasticsearch.xcontent.ConstructingObjectParser;
import org.elasticsearch.xcontent.ParseField;
import org.elasticsearch.xcontent.ToXContentFragment;
import org.elasticsearch.xcontent.XContentBuilder;
import org.elasticsearch.xcontent.XContentParser;
import java.io.IOException;
import java.util.Objects;
import static org.elasticsearch.core.RestApiVersion.equalTo;
import static org.elasticsearch.xcontent.ConstructingObjectParser.constructorArg;
/**
* Encapsulates the parameters needed to fetch terms.
*/
public class TermsLookup implements Writeable, ToXContentFragment {
private final String index;
private final String id;
private final String path;
private String routing;
public TermsLookup(String index, String id, String path) {
if (id == null) {
throw new IllegalArgumentException("[" + TermsQueryBuilder.NAME + "] query lookup element requires specifying the id.");
}
if (path == null) {
throw new IllegalArgumentException("[" + TermsQueryBuilder.NAME + "] query lookup element requires specifying the path.");
}
if (index == null) {
throw new IllegalArgumentException("[" + TermsQueryBuilder.NAME + "] query lookup element requires specifying the index.");
}
this.index = index;
this.id = id;
this.path = path;
}
/**
* Read from a stream.
*/
public TermsLookup(StreamInput in) throws IOException {
if (in.getTransportVersion().before(TransportVersions.V_8_0_0)) {
in.readOptionalString();
}
id = in.readString();
path = in.readString();
index = in.readString();
routing = in.readOptionalString();
}
@Override
public void writeTo(StreamOutput out) throws IOException {
if (out.getTransportVersion().before(TransportVersions.V_8_0_0)) {
out.writeOptionalString(MapperService.SINGLE_MAPPING_NAME);
}
out.writeString(id);
out.writeString(path);
out.writeString(index);
out.writeOptionalString(routing);
}
public String index() {
return index;
}
public String id() {
return id;
}
public String path() {
return path;
}
public String routing() {
return routing;
}
public TermsLookup routing(String routing) {
this.routing = routing;
return this;
}
private static final ConstructingObjectParser PARSER = new ConstructingObjectParser<>("terms_lookup", args -> {
String index = (String) args[0];
String id = (String) args[1];
String path = (String) args[2];
return new TermsLookup(index, id, path);
});
static {
PARSER.declareString(constructorArg(), new ParseField("index"));
PARSER.declareString(constructorArg(), new ParseField("id"));
PARSER.declareString(constructorArg(), new ParseField("path"));
PARSER.declareString(TermsLookup::routing, new ParseField("routing"));
PARSER.declareString((termLookup, type) -> {}, new ParseField("type").forRestApiVersion(equalTo(RestApiVersion.V_7)));
}
public static TermsLookup parseTermsLookup(XContentParser parser) throws IOException {
return PARSER.parse(parser, null);
}
@Override
public String toString() {
return index + "/" + id + "/" + path;
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
builder.field("index", index);
builder.field("id", id);
builder.field("path", path);
if (routing != null) {
builder.field("routing", routing);
}
return builder;
}
@Override
public int hashCode() {
return Objects.hash(index, id, path, routing);
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null || getClass() != obj.getClass()) {
return false;
}
TermsLookup other = (TermsLookup) obj;
return Objects.equals(index, other.index)
&& Objects.equals(id, other.id)
&& Objects.equals(path, other.path)
&& Objects.equals(routing, other.routing);
}
}