| // 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.doris.system; |
| |
| import org.apache.doris.common.io.Text; |
| import org.apache.doris.common.io.Writable; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| |
| /* |
| * This the superclass of all kinds of heartbeat response |
| */ |
| public class HeartbeatResponse implements Writable { |
| public enum Type { |
| FRONTEND, |
| BACKEND, |
| BROKER |
| } |
| |
| public enum HbStatus { |
| OK, BAD |
| } |
| |
| protected Type type; |
| protected boolean isTypeRead = false; |
| |
| protected HbStatus status; |
| |
| // msg and hbTime are no need to be synchronized to other Frontends, |
| // and only Master Frontend has these info |
| protected String msg; |
| protected long hbTime; |
| |
| public HeartbeatResponse(Type type) { |
| this.type = type; |
| } |
| |
| public Type getType() { |
| return type; |
| } |
| |
| public HbStatus getStatus() { |
| return status; |
| } |
| |
| public String getMsg() { |
| return msg; |
| } |
| |
| public long getHbTime() { |
| return hbTime; |
| } |
| |
| public void setTypeRead(boolean isTypeRead) { |
| this.isTypeRead = isTypeRead; |
| } |
| |
| public static HeartbeatResponse read(DataInput in) throws IOException { |
| HeartbeatResponse result = null; |
| Type type = Type.valueOf(Text.readString(in)); |
| if (type == Type.FRONTEND) { |
| result = new FrontendHbResponse(); |
| } else if (type == Type.BACKEND) { |
| result = new BackendHbResponse(); |
| } else if (type == Type.BROKER) { |
| result = new BrokerHbResponse(); |
| } else { |
| throw new IOException("Unknown job type: " + type.name()); |
| } |
| |
| result.setTypeRead(true); |
| result.readFields(in); |
| return result; |
| } |
| |
| @Override |
| public void write(DataOutput out) throws IOException { |
| Text.writeString(out, type.name()); |
| Text.writeString(out, status.name()); |
| } |
| |
| public void readFields(DataInput in) throws IOException { |
| if (!isTypeRead) { |
| type = Type.valueOf(Text.readString(in)); |
| isTypeRead = true; |
| } |
| |
| status = HbStatus.valueOf(Text.readString(in)); |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder sb = new StringBuilder(); |
| sb.append("type: ").append(type.name()); |
| sb.append(", status: ").append(status.name()); |
| sb.append(", msg: ").append(msg); |
| return sb.toString(); |
| } |
| } |