BatchRemoveTransactionsOperation.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
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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.persist;

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;
import java.util.List;
import java.util.Map;

// Persist the info when removing batch of expired txns
public class BatchRemoveTransactionsOperation implements Writable {

    @SerializedName(value = "dbTxnIds")
    // dbId -> List of txns
    private Map<Long, List<Long>> dbTxnIds;

    public BatchRemoveTransactionsOperation(Map<Long, List<Long>> dbTxnIds) {
        this.dbTxnIds = dbTxnIds;
    }

    public Map<Long, List<Long>> getDbTxnIds() {
        return dbTxnIds;
    }

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

    public static BatchRemoveTransactionsOperation read(DataInput in) throws IOException {
        String json = Text.readString(in);
        return GsonUtils.GSON.fromJson(json, BatchRemoveTransactionsOperation.class);
    }
}