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[flink] Introduce record parser for debezium with schema (apache#2730)
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91 changes: 91 additions & 0 deletions
91
...c/src/main/java/org/apache/paimon/flink/action/cdc/format/debezium/CdcDebeziumSchema.java
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| @@ -0,0 +1,91 @@ | ||
| /* | ||
| * 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.paimon.flink.action.cdc.format.debezium; | ||
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| import org.apache.paimon.shade.jackson2.com.fasterxml.jackson.annotation.JsonCreator; | ||
| import org.apache.paimon.shade.jackson2.com.fasterxml.jackson.annotation.JsonGetter; | ||
| import org.apache.paimon.shade.jackson2.com.fasterxml.jackson.annotation.JsonIgnoreProperties; | ||
| import org.apache.paimon.shade.jackson2.com.fasterxml.jackson.annotation.JsonProperty; | ||
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| import java.util.List; | ||
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| /** Cdc Debezium Schema Entity. */ | ||
| @JsonIgnoreProperties(ignoreUnknown = true) | ||
| public class CdcDebeziumSchema { | ||
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| private static final String FIELD_FIELDS = "fields"; | ||
| private static final String FIELD_NAME = "name"; | ||
| private static final String FIELD_TYPE = "type"; | ||
| private static final String FIELD_FIELD = "field"; | ||
| private static final String FIELD_OPTIONAL = "optional"; | ||
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| @JsonProperty(FIELD_FIELD) | ||
| private final String field; | ||
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| @JsonProperty(FIELD_TYPE) | ||
| private final String type; | ||
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| @JsonProperty(FIELD_OPTIONAL) | ||
| private final Boolean optional; | ||
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| @JsonProperty(FIELD_FIELDS) | ||
| private final List<CdcDebeziumSchema> fields; | ||
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| @JsonProperty(FIELD_NAME) | ||
| private final String name; | ||
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| @JsonCreator | ||
| public CdcDebeziumSchema( | ||
| @JsonProperty(FIELD_FIELD) String field, | ||
| @JsonProperty(FIELD_TYPE) String type, | ||
| @JsonProperty(FIELD_OPTIONAL) Boolean optional, | ||
| @JsonProperty(FIELD_FIELDS) List<CdcDebeziumSchema> fields, | ||
| @JsonProperty(FIELD_NAME) String name) { | ||
| this.field = field; | ||
| this.type = type; | ||
| this.optional = optional; | ||
| this.fields = fields; | ||
| this.name = name; | ||
| } | ||
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| @JsonGetter(FIELD_FIELD) | ||
| public String field() { | ||
| return field; | ||
| } | ||
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| @JsonGetter(FIELD_TYPE) | ||
| public String type() { | ||
| return type; | ||
| } | ||
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| @JsonGetter(FIELD_OPTIONAL) | ||
| public Boolean optional() { | ||
| return optional; | ||
| } | ||
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| @JsonGetter(FIELD_FIELDS) | ||
| public List<CdcDebeziumSchema> fields() { | ||
| return fields; | ||
| } | ||
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| @JsonGetter(FIELD_NAME) | ||
| public String name() { | ||
| return name; | ||
| } | ||
| } |
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100 changes: 100 additions & 0 deletions
100
...org/apache/paimon/flink/action/cdc/format/debezium/DebeziumSchemaIncludeRecordParser.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.paimon.flink.action.cdc.format.debezium; | ||
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| import org.apache.paimon.flink.action.cdc.ComputedColumn; | ||
| import org.apache.paimon.flink.action.cdc.TypeMapping; | ||
| import org.apache.paimon.flink.action.cdc.format.RecordParser; | ||
| import org.apache.paimon.types.DataType; | ||
| import org.apache.paimon.types.DataTypes; | ||
| import org.apache.paimon.utils.JsonSerdeUtil; | ||
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| import org.apache.paimon.shade.jackson2.com.fasterxml.jackson.databind.JsonNode; | ||
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| import java.io.UncheckedIOException; | ||
| import java.util.LinkedHashMap; | ||
| import java.util.List; | ||
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| import static io.debezium.pipeline.signal.SchemaChanges.FIELD_SCHEMA; | ||
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| /** | ||
| * The {@code DebeziumSchemaIncludeRecordParser} class extends the {@link RecordParser} to parse | ||
| * Debezium's change data capture (CDC) records, specifically focusing on parsing records that | ||
| * include the complete Debezium schema. This inclusion of the schema allows for a more detailed and | ||
| * accurate interpretation of the CDC data. | ||
| */ | ||
| public class DebeziumSchemaIncludeRecordParser extends DebeziumRecordParser { | ||
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| private JsonNode schema; | ||
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| public DebeziumSchemaIncludeRecordParser( | ||
| boolean caseSensitive, TypeMapping typeMapping, List<ComputedColumn> computedColumns) { | ||
| super(caseSensitive, typeMapping, computedColumns); | ||
| } | ||
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| @Override | ||
| protected LinkedHashMap<String, DataType> fillDefaultTypes(JsonNode record) { | ||
| CdcDebeziumSchema cdcDebeziumSchema; | ||
| try { | ||
| cdcDebeziumSchema = JsonSerdeUtil.fromJson(schema.toString(), CdcDebeziumSchema.class); | ||
| } catch (UncheckedIOException e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| LinkedHashMap<String, DataType> fieldTypes = new LinkedHashMap<>(); | ||
| CdcDebeziumSchema field = cdcDebeziumSchema.fields().get(1); | ||
| for (CdcDebeziumSchema f : field.fields()) { | ||
| DataType dataType = toDataType(f.type()); | ||
| fieldTypes.put(f.field(), dataType); | ||
| } | ||
| return fieldTypes; | ||
| } | ||
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| public static DataType toDataType(String type) { | ||
| switch (type) { | ||
| case "int32": | ||
| return DataTypes.INT(); | ||
| case "int64": | ||
| return DataTypes.BIGINT(); | ||
| case "string": | ||
| return DataTypes.STRING(); | ||
| case "float32": | ||
| case "float64": | ||
| return DataTypes.FLOAT(); | ||
| case "double": | ||
| return DataTypes.DOUBLE(); | ||
| case "bytes": | ||
| return DataTypes.BYTES(); | ||
| default: | ||
| throw new UnsupportedOperationException( | ||
| String.format("Don't support type '%s' yet.", type)); | ||
| } | ||
| } | ||
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| @Override | ||
| protected void setRoot(String record) { | ||
| JsonNode node = JsonSerdeUtil.fromJson(record, JsonNode.class); | ||
| root = node.get(FIELD_PAYLOAD); | ||
| schema = node.get(FIELD_SCHEMA); | ||
| } | ||
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| @Override | ||
| protected String format() { | ||
| return "debezium_json_schema_include"; | ||
| } | ||
| } |
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19 changes: 19 additions & 0 deletions
19
...imon-flink-cdc/src/test/resources/kafka/debezium/table/schema/include/debezium-data-1.txt
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,19 @@ | ||
| /* | ||
| * 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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| {"schema":{"type":"struct","fields":[{"type":"struct","fields":[{"type":"int32","optional":false,"field":"id"},{"type":"string","optional":false,"field":"name"},{"type":"string","optional":true,"field":"description"},{"type":"double","optional":true,"field":"weight"}],"optional":true,"name":"dbserver1.inventory.products.Value","field":"before"},{"type":"struct","fields":[{"type":"int32","optional":false,"field":"id"},{"type":"string","optional":false,"field":"name"},{"type":"string","optional":true,"field":"description"},{"type":"double","optional":true,"field":"weight"}],"optional":true,"name":"dbserver1.inventory.products.Value","field":"after"},{"type":"struct","fields":[{"type":"string","optional":false,"field":"version"},{"type":"string","optional":false,"field":"connector"},{"type":"string","optional":false,"field":"name"},{"type":"int64","optional":false,"field":"ts_ms"},{"type":"string","optional":true,"name":"io.debezium.data.Enum","version":1,"parameters":{"allowed":"true,last,false"},"default":"false","field":"snapshot"},{"type":"string","optional":false,"field":"db"},{"type":"string","optional":true,"field":"table"},{"type":"int64","optional":false,"field":"server_id"},{"type":"string","optional":true,"field":"gtid"},{"type":"string","optional":false,"field":"file"},{"type":"int64","optional":false,"field":"pos"},{"type":"int32","optional":false,"field":"row"},{"type":"int64","optional":true,"field":"thread"},{"type":"string","optional":true,"field":"query"}],"optional":false,"name":"io.debezium.connector.mysql.Source","field":"source"},{"type":"string","optional":false,"field":"op"},{"type":"int64","optional":true,"field":"ts_ms"},{"type":"struct","fields":[{"type":"string","optional":false,"field":"id"},{"type":"int64","optional":false,"field":"total_order"},{"type":"int64","optional":false,"field":"data_collection_order"}],"optional":true,"field":"transaction"}],"optional":false,"name":"dbserver1.inventory.products.Envelope"},"payload":{"before":null,"after":{"id":101,"name":"scooter","description":"Small 2-wheel scooter","weight":3.140000104904175},"source":{"version":"1.1.1.Final","connector":"mysql","name":"dbserver1","ts_ms":0,"snapshot":"true","db":"inventory","table":"products","server_id":0,"gtid":null,"file":"mysql-bin.000003","pos":154,"row":0,"thread":null,"query":null},"op":"c","ts_ms":1589355606100,"transaction":null}} |