Timestamp.java

// 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.journal.bdbje;

import org.apache.doris.catalog.Env;
import org.apache.doris.common.FeMetaVersion;
import org.apache.doris.common.io.Text;
import org.apache.doris.common.io.Writable;
import org.apache.doris.persist.gson.GsonUtils;

import com.google.gson.annotations.SerializedName;

import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;

// Write this class to bdb periodically
public class Timestamp implements Writable {
    @SerializedName("ts")
    private long timestamp;

    public Timestamp() {
        timestamp = System.currentTimeMillis();
    }

    public long getTimestamp() {
        return this.timestamp;
    }

    @Override
    public void write(DataOutput out) throws IOException {
        Text.writeString(out, GsonUtils.GSON.toJson(this));
    }

    public static Timestamp read(DataInput in) throws IOException {
        if (Env.getCurrentEnvJournalVersion() < FeMetaVersion.VERSION_134) {
            Timestamp timestamp = new Timestamp();
            timestamp.readFields(in);
            return timestamp;
        } else {
            return GsonUtils.GSON.fromJson(Text.readString(in), Timestamp.class);
        }
    }

    @Deprecated
    public void readFields(DataInput in) throws IOException {
        timestamp = in.readLong();
    }

    public String toString() {
        return "" + timestamp;
    }
}