YannByron commented on code in PR #6697: URL: https://github.com/apache/hudi/pull/6697#discussion_r974821737
########## hudi-client/hudi-client-common/src/main/java/org/apache/hudi/io/HoodieCDCLogger.java: ########## @@ -0,0 +1,263 @@ +/* + * 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.io; + +import org.apache.avro.Schema; +import org.apache.avro.generic.GenericData; +import org.apache.avro.generic.GenericRecord; +import org.apache.avro.generic.IndexedRecord; + +import org.apache.hadoop.fs.FileSystem; +import org.apache.hadoop.fs.Path; + +import org.apache.hudi.avro.HoodieAvroUtils; +import org.apache.hudi.common.fs.FSUtils; +import org.apache.hudi.common.model.HoodieAvroPayload; +import org.apache.hudi.common.model.HoodieRecord; +import org.apache.hudi.common.model.HoodieWriteStat; +import org.apache.hudi.common.table.HoodieTableConfig; +import org.apache.hudi.common.table.cdc.HoodieCDCOperation; +import org.apache.hudi.common.table.cdc.HoodieCDCSupplementalLoggingMode; +import org.apache.hudi.common.table.cdc.HoodieCDCUtils; +import org.apache.hudi.common.table.log.AppendResult; +import org.apache.hudi.common.table.log.HoodieLogFormat; +import org.apache.hudi.common.table.log.block.HoodieCDCDataBlock; +import org.apache.hudi.common.table.log.block.HoodieLogBlock; +import org.apache.hudi.common.util.DefaultSizeEstimator; +import org.apache.hudi.common.util.Option; +import org.apache.hudi.common.util.StringUtils; +import org.apache.hudi.common.util.collection.ExternalSpillableMap; +import org.apache.hudi.config.HoodieWriteConfig; +import org.apache.hudi.exception.HoodieException; +import org.apache.hudi.exception.HoodieIOException; +import org.apache.hudi.exception.HoodieUpsertException; + +import java.io.Closeable; +import java.io.IOException; +import java.util.Collections; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.stream.Collectors; + +/** + * This class encapsulates all the cdc-writing functions. + */ +public class HoodieCDCLogger implements Closeable { + + private final String commitTime; + + private final String keyField; + + private final Schema dataSchema; + + private final boolean populateMetaFields; + + // writer for cdc data + private final HoodieLogFormat.Writer cdcWriter; + + private final boolean cdcEnabled; + + private final HoodieCDCSupplementalLoggingMode cdcSupplementalLoggingMode; + + private final Schema cdcSchema; + + // the cdc data + private final Map<String, HoodieAvroPayload> cdcData; + + public HoodieCDCLogger( + String commitTime, + HoodieWriteConfig config, + HoodieTableConfig tableConfig, + Schema schema, + HoodieLogFormat.Writer cdcWriter, + long maxInMemorySizeInBytes) { + try { + this.commitTime = commitTime; + this.dataSchema = HoodieAvroUtils.removeMetadataFields(schema); + this.populateMetaFields = config.populateMetaFields(); + this.keyField = populateMetaFields ? HoodieRecord.RECORD_KEY_METADATA_FIELD + : tableConfig.getRecordKeyFieldProp(); + this.cdcWriter = cdcWriter; + + this.cdcEnabled = config.getBooleanOrDefault(HoodieTableConfig.CDC_ENABLED); + this.cdcSupplementalLoggingMode = HoodieCDCSupplementalLoggingMode.parse( + config.getStringOrDefault(HoodieTableConfig.CDC_SUPPLEMENTAL_LOGGING_MODE)); + + if (cdcSupplementalLoggingMode.equals(HoodieCDCSupplementalLoggingMode.WITH_BEFORE_AFTER)) { + this.cdcSchema = HoodieCDCUtils.CDC_SCHEMA; + } else if (cdcSupplementalLoggingMode.equals(HoodieCDCSupplementalLoggingMode.WITH_BEFORE)) { + this.cdcSchema = HoodieCDCUtils.CDC_SCHEMA_OP_RECORDKEY_BEFORE; + } else { + this.cdcSchema = HoodieCDCUtils.CDC_SCHEMA_OP_AND_RECORDKEY; + } + + this.cdcData = new ExternalSpillableMap<>( Review Comment: thank you for pointing this out. i will think deeply about it. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@hudi.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
