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/*
 * 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.hudi.common.util;

import com.esotericsoftware.kryo.Kryo;
import org.apache.hudi.common.HoodieJsonPayload;
import org.apache.hudi.common.model.AWSDmsAvroPayload;
import org.apache.hudi.common.model.DefaultHoodieRecordPayload;
import org.apache.hudi.common.model.EventTimeAvroPayload;
import org.apache.hudi.common.model.HoodieAvroIndexedRecord;
import org.apache.hudi.common.model.HoodieAvroPayload;
import org.apache.hudi.common.model.HoodieAvroRecord;
import org.apache.hudi.common.model.HoodieEmptyRecord;
import org.apache.hudi.common.model.HoodieRecordGlobalLocation;
import org.apache.hudi.common.model.HoodieRecordLocation;
import org.apache.hudi.common.model.HoodieRecordDelegate;
import org.apache.hudi.common.model.OverwriteNonDefaultsWithLatestAvroPayload;
import org.apache.hudi.common.model.OverwriteWithLatestAvroPayload;
import org.apache.hudi.common.model.PartialUpdateAvroPayload;
import org.apache.hudi.common.model.RewriteAvroPayload;
import org.apache.hudi.common.model.debezium.MySqlDebeziumAvroPayload;
import org.apache.hudi.common.model.debezium.PostgresDebeziumAvroPayload;
import org.apache.hudi.metadata.HoodieMetadataPayload;

import java.util.Arrays;

/**
 * NOTE: PLEASE READ CAREFULLY BEFORE CHANGING
 *
 * This class is responsible for registering Hudi specific components that are often
 * serialized by Kryo (for ex, during Spark's Shuffling operations) to make sure Kryo
 * doesn't need to serialize their full class-names (for every object) which will quickly
 * add up to considerable amount of overhead.
 *
 * Please note of the following:
 * 
    *
  1. Ordering of the registration COULD NOT change as it's directly impacting * associated class ids (on the Kryo side)
  2. *
  3. This class might be loaded up using reflection and as such should not be relocated * or renamed (w/o correspondingly updating such usages)
  4. *
*/ public class HoodieCommonKryoRegistrar { public void registerClasses(Kryo kryo) { /////////////////////////////////////////////////////////////////////////// // NOTE: DO NOT REORDER REGISTRATIONS /////////////////////////////////////////////////////////////////////////// Arrays.stream(new Class[] { HoodieAvroRecord.class, HoodieAvroIndexedRecord.class, HoodieEmptyRecord.class, OverwriteWithLatestAvroPayload.class, DefaultHoodieRecordPayload.class, OverwriteNonDefaultsWithLatestAvroPayload.class, RewriteAvroPayload.class, EventTimeAvroPayload.class, PartialUpdateAvroPayload.class, MySqlDebeziumAvroPayload.class, PostgresDebeziumAvroPayload.class, // TODO need to relocate to hudi-common //kryo.register(BootstrapRecordPayload.class); AWSDmsAvroPayload.class, HoodieAvroPayload.class, HoodieJsonPayload.class, HoodieMetadataPayload.class, HoodieRecordLocation.class, HoodieRecordGlobalLocation.class, HoodieRecordDelegate.class }) .forEachOrdered(kryo::register); } }




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