fe/src/main/java/org/apache/doris/system/FrontendHbResponse.java

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// 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
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// 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;

/*
 * Frontend heartbeat response contains Frontend's query port, rpc port and current replayed journal id.
 * (http port is supposed to the same, so no need to be carried on heartbeat response)
 */
public class FrontendHbResponse extends HeartbeatResponse implements Writable {

    private String name;
    private int queryPort;
    private int rpcPort;
    private long replayedJournalId;
    private String version;

    public FrontendHbResponse() {
        super(HeartbeatResponse.Type.FRONTEND);
    }

    public FrontendHbResponse(String name, int queryPort, int rpcPort, long replayedJournalId, long hbTime, String version) {
        super(HeartbeatResponse.Type.FRONTEND);
        this.status = HbStatus.OK;
        this.name = name;
        this.queryPort = queryPort;
        this.rpcPort = rpcPort;
        this.replayedJournalId = replayedJournalId;
        this.hbTime = hbTime;
        this.version = version;
    }

    public FrontendHbResponse(String name, String errMsg) {
        super(HeartbeatResponse.Type.FRONTEND);
        this.status = HbStatus.BAD;
        this.name = name;
        this.msg = errMsg;
    }

    public String getName() {
        return name;
    }

    public int getQueryPort() {
        return queryPort;
    }

    public int getRpcPort() {
        return rpcPort;
    }

    public long getReplayedJournalId() {
        return replayedJournalId;
    }

    public String getVersion() {
        return version;
    }

    public static FrontendHbResponse read(DataInput in) throws IOException {
        FrontendHbResponse result = new FrontendHbResponse();
        result.readFields(in);
        return result;
    }

    @Override
    public void write(DataOutput out) throws IOException {
        super.write(out);
        Text.writeString(out, name);
        out.writeInt(queryPort);
        out.writeInt(rpcPort);
        out.writeLong(replayedJournalId);
    }

    public void readFields(DataInput in) throws IOException {
        super.readFields(in);
        name = Text.readString(in);
        queryPort = in.readInt();
        rpcPort = in.readInt();
        replayedJournalId = in.readLong();
    }

    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append(super.toString());
        sb.append(", name: ").append(name);
        sb.append(", version: ").append(version);
        sb.append(", queryPort: ").append(queryPort);
        sb.append(", rpcPort: ").append(rpcPort);
        sb.append(", replayedJournalId: ").append(replayedJournalId);
        return sb.toString();
    }

}