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[Feature](cdc) add MongoDB cdc (#343)
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...va/org/apache/doris/flink/sink/writer/serializer/MongoDBJsonDebeziumSchemaSerializer.java
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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. | ||
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| package org.apache.doris.flink.sink.writer.serializer; | ||
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| import com.fasterxml.jackson.databind.DeserializationFeature; | ||
| import com.fasterxml.jackson.databind.JsonNode; | ||
| import com.fasterxml.jackson.databind.ObjectMapper; | ||
| import com.fasterxml.jackson.databind.node.JsonNodeFactory; | ||
| import org.apache.doris.flink.cfg.DorisExecutionOptions; | ||
| import org.apache.doris.flink.cfg.DorisOptions; | ||
| import org.apache.doris.flink.sink.writer.serializer.jsondebezium.CdcDataChange; | ||
| import org.apache.doris.flink.sink.writer.serializer.jsondebezium.CdcSchemaChange; | ||
| import org.apache.doris.flink.sink.writer.serializer.jsondebezium.JsonDebeziumChangeContext; | ||
| import org.apache.doris.flink.sink.writer.serializer.jsondebezium.MongoJsonDebeziumDataChange; | ||
| import org.apache.doris.flink.sink.writer.serializer.jsondebezium.MongoJsonDebeziumSchemaChange; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
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| import java.io.IOException; | ||
| import java.util.Map; | ||
| import java.util.regex.Pattern; | ||
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| import static org.apache.doris.flink.sink.writer.LoadConstants.LINE_DELIMITER_DEFAULT; | ||
| import static org.apache.doris.flink.sink.writer.LoadConstants.LINE_DELIMITER_KEY; | ||
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| public class MongoDBJsonDebeziumSchemaSerializer implements DorisRecordSerializer<String> { | ||
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| private static final Logger LOG = | ||
| LoggerFactory.getLogger(MongoDBJsonDebeziumSchemaSerializer.class); | ||
| private final Pattern pattern; | ||
| private final DorisOptions dorisOptions; | ||
| private final ObjectMapper objectMapper = new ObjectMapper(); | ||
| // table name of the cdc upstream, format is db.tbl | ||
| private final String sourceTableName; | ||
| private String lineDelimiter = LINE_DELIMITER_DEFAULT; | ||
| private boolean ignoreUpdateBefore = true; | ||
| // <cdc db.schema.table, doris db.table> | ||
| private Map<String, String> tableMapping; | ||
| // create table properties | ||
| private Map<String, String> tableProperties; | ||
| private String targetDatabase; | ||
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| private CdcDataChange dataChange; | ||
| private CdcSchemaChange schemaChange; | ||
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| private String targetTablePrefix; | ||
| private String targetTableSuffix; | ||
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| public MongoDBJsonDebeziumSchemaSerializer( | ||
| DorisOptions dorisOptions, | ||
| Pattern pattern, | ||
| String sourceTableName, | ||
| DorisExecutionOptions executionOptions, | ||
| Map<String, String> tableMapping, | ||
| Map<String, String> tableProperties, | ||
| String targetDatabase, | ||
| String targetTablePrefix, | ||
| String targetTableSuffix) { | ||
| this.dorisOptions = dorisOptions; | ||
| this.pattern = pattern; | ||
| this.sourceTableName = sourceTableName; | ||
| // Prevent loss of decimal data precision | ||
| this.objectMapper.enable(DeserializationFeature.USE_BIG_DECIMAL_FOR_FLOATS); | ||
| JsonNodeFactory jsonNodeFactory = JsonNodeFactory.withExactBigDecimals(true); | ||
| this.objectMapper.setNodeFactory(jsonNodeFactory); | ||
| this.tableMapping = tableMapping; | ||
| this.tableProperties = tableProperties; | ||
| this.targetDatabase = targetDatabase; | ||
| this.targetTablePrefix = targetTablePrefix; | ||
| this.targetTableSuffix = targetTableSuffix; | ||
| if (executionOptions != null) { | ||
| this.lineDelimiter = | ||
| executionOptions | ||
| .getStreamLoadProp() | ||
| .getProperty(LINE_DELIMITER_KEY, LINE_DELIMITER_DEFAULT); | ||
| this.ignoreUpdateBefore = executionOptions.getIgnoreUpdateBefore(); | ||
| } | ||
| init(); | ||
| } | ||
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| private void init() { | ||
| JsonDebeziumChangeContext changeContext = | ||
| new JsonDebeziumChangeContext( | ||
| dorisOptions, | ||
| tableMapping, | ||
| sourceTableName, | ||
| targetDatabase, | ||
| tableProperties, | ||
| objectMapper, | ||
| pattern, | ||
| lineDelimiter, | ||
| ignoreUpdateBefore, | ||
| targetTablePrefix, | ||
| targetTableSuffix); | ||
| this.dataChange = new MongoJsonDebeziumDataChange(changeContext); | ||
| this.schemaChange = new MongoJsonDebeziumSchemaChange(changeContext); | ||
| } | ||
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| @Override | ||
| public DorisRecord serialize(String record) throws IOException { | ||
| LOG.debug("received debezium json data {} :", record); | ||
| JsonNode recordRoot = objectMapper.readValue(record, JsonNode.class); | ||
| String op = getOperateType(recordRoot); | ||
| try { | ||
| schemaChange.schemaChange(recordRoot); | ||
| } catch (Exception e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| return dataChange.serialize(record, recordRoot, op); | ||
| } | ||
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| private String getOperateType(JsonNode recordRoot) { | ||
| return recordRoot.get("operationType").asText(); | ||
| } | ||
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| public static MongoDBJsonDebeziumSchemaSerializer.Builder builder() { | ||
| return new MongoDBJsonDebeziumSchemaSerializer.Builder(); | ||
| } | ||
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| public static class Builder { | ||
| private DorisOptions dorisOptions; | ||
| private Pattern addDropDDLPattern; | ||
| private String sourceTableName; | ||
| private DorisExecutionOptions executionOptions; | ||
| private Map<String, String> tableMapping; | ||
| private Map<String, String> tableProperties; | ||
| private String targetDatabase; | ||
| private String targetTablePrefix = ""; | ||
| private String targetTableSuffix = ""; | ||
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| public MongoDBJsonDebeziumSchemaSerializer.Builder setDorisOptions( | ||
| DorisOptions dorisOptions) { | ||
| this.dorisOptions = dorisOptions; | ||
| return this; | ||
| } | ||
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| public MongoDBJsonDebeziumSchemaSerializer.Builder setPattern(Pattern addDropDDLPattern) { | ||
| this.addDropDDLPattern = addDropDDLPattern; | ||
| return this; | ||
| } | ||
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| public MongoDBJsonDebeziumSchemaSerializer.Builder setSourceTableName( | ||
| String sourceTableName) { | ||
| this.sourceTableName = sourceTableName; | ||
| return this; | ||
| } | ||
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| public MongoDBJsonDebeziumSchemaSerializer.Builder setExecutionOptions( | ||
| DorisExecutionOptions executionOptions) { | ||
| this.executionOptions = executionOptions; | ||
| return this; | ||
| } | ||
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| public MongoDBJsonDebeziumSchemaSerializer.Builder setTableMapping( | ||
| Map<String, String> tableMapping) { | ||
| this.tableMapping = tableMapping; | ||
| return this; | ||
| } | ||
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| public MongoDBJsonDebeziumSchemaSerializer.Builder setTableProperties( | ||
| Map<String, String> tableProperties) { | ||
| this.tableProperties = tableProperties; | ||
| return this; | ||
| } | ||
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| public MongoDBJsonDebeziumSchemaSerializer.Builder setTargetDatabase( | ||
| String targetDatabase) { | ||
| this.targetDatabase = targetDatabase; | ||
| return this; | ||
| } | ||
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| public MongoDBJsonDebeziumSchemaSerializer build() { | ||
| return new MongoDBJsonDebeziumSchemaSerializer( | ||
| dorisOptions, | ||
| addDropDDLPattern, | ||
| sourceTableName, | ||
| executionOptions, | ||
| tableMapping, | ||
| tableProperties, | ||
| targetDatabase, | ||
| targetTablePrefix, | ||
| targetTableSuffix); | ||
| } | ||
| } | ||
| } |
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