/**
* Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE
* file distributed with this work for additional information regarding copyright ownership. The ASF 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.apache.kafka.common.requests;
import org.apache.kafka.common.Node;
import org.apache.kafka.common.protocol.ApiKeys;
import org.apache.kafka.common.protocol.ProtoUtils;
import org.apache.kafka.common.protocol.types.Schema;
import org.apache.kafka.common.protocol.types.Struct;
import java.nio.ByteBuffer;
public class ConsumerMetadataResponse extends AbstractRequestResponse {
private static Schema curSchema = ProtoUtils.currentResponseSchema(ApiKeys.CONSUMER_METADATA.id);
private static String ERROR_CODE_KEY_NAME = "error_code";
private static String COORDINATOR_KEY_NAME = "coordinator";
// coordinator level field names
private static String NODE_ID_KEY_NAME = "node_id";
private static String HOST_KEY_NAME = "host";
private static String PORT_KEY_NAME = "port";
private final short errorCode;
private final Node node;
public ConsumerMetadataResponse(short errorCode, Node node) {
super(new Struct(curSchema));
struct.set(ERROR_CODE_KEY_NAME, errorCode);
Struct coordinator = struct.instance(COORDINATOR_KEY_NAME);
coordinator.set(NODE_ID_KEY_NAME, node.id());
coordinator.set(HOST_KEY_NAME, node.host());
coordinator.set(PORT_KEY_NAME, node.port());
struct.set(COORDINATOR_KEY_NAME, coordinator);
this.errorCode = errorCode;
this.node = node;
}
public ConsumerMetadataResponse(Struct struct) {
super(struct);
errorCode = struct.getShort(ERROR_CODE_KEY_NAME);
Struct broker = (Struct) struct.get(COORDINATOR_KEY_NAME);
int nodeId = broker.getInt(NODE_ID_KEY_NAME);
String host = broker.getString(HOST_KEY_NAME);
int port = broker.getInt(PORT_KEY_NAME);
node = new Node(nodeId, host, port);
}
public short errorCode() {
return errorCode;
}
public Node node() {
return node;
}
public static ConsumerMetadataResponse parse(ByteBuffer buffer) {
return new ConsumerMetadataResponse(((Struct) curSchema.read(buffer)));
}
}