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...tor-db2-cdc/src/main/java/com/ververica/cdc/connectors/db2/table/Db2ReadableMetaData.java
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| /* | ||
| * Copyright 2022 Ververica Inc. | ||
| * | ||
| * Licensed 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 com.ververica.cdc.connectors.db2.table; | ||
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| import org.apache.flink.table.api.DataTypes; | ||
| import org.apache.flink.table.data.StringData; | ||
| import org.apache.flink.table.data.TimestampData; | ||
| import org.apache.flink.table.types.DataType; | ||
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| import com.ververica.cdc.debezium.table.MetadataConverter; | ||
| import io.debezium.connector.AbstractSourceInfo; | ||
| import io.debezium.data.Envelope; | ||
| import org.apache.kafka.connect.data.Struct; | ||
| import org.apache.kafka.connect.source.SourceRecord; | ||
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| /** Defines the supported metadata columns for {@link Db2TableSource}. */ | ||
| public enum Db2ReadableMetaData { | ||
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| /** Name of the table that contain the row. */ | ||
| TABLE_NAME( | ||
| "table_name", | ||
| DataTypes.STRING().notNull(), | ||
| new MetadataConverter() { | ||
| private static final long serialVersionUID = 1L; | ||
|
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| @Override | ||
| public Object read(SourceRecord record) { | ||
| Struct messageStruct = (Struct) record.value(); | ||
| Struct sourceStruct = messageStruct.getStruct(Envelope.FieldName.SOURCE); | ||
| return StringData.fromString( | ||
| sourceStruct.getString(AbstractSourceInfo.TABLE_NAME_KEY)); | ||
| } | ||
| }), | ||
| /** Name of the schema that contain the row. */ | ||
| SCHEMA_NAME( | ||
| "schema_name", | ||
| DataTypes.STRING().notNull(), | ||
| new MetadataConverter() { | ||
| private static final long serialVersionUID = 1L; | ||
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| @Override | ||
| public Object read(SourceRecord record) { | ||
| Struct messageStruct = (Struct) record.value(); | ||
| Struct sourceStruct = messageStruct.getStruct(Envelope.FieldName.SOURCE); | ||
| return StringData.fromString( | ||
| sourceStruct.getString(AbstractSourceInfo.SCHEMA_NAME_KEY)); | ||
| } | ||
| }), | ||
|
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| /** Name of the database that contain the row. */ | ||
| DATABASE_NAME( | ||
| "database_name", | ||
| DataTypes.STRING().notNull(), | ||
| new MetadataConverter() { | ||
| private static final long serialVersionUID = 1L; | ||
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| @Override | ||
| public Object read(SourceRecord record) { | ||
| Struct messageStruct = (Struct) record.value(); | ||
| Struct sourceStruct = messageStruct.getStruct(Envelope.FieldName.SOURCE); | ||
| return StringData.fromString( | ||
| sourceStruct.getString(AbstractSourceInfo.DATABASE_NAME_KEY)); | ||
| } | ||
| }), | ||
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| /** | ||
| * It indicates the time that the change was made in the database. If the record is read from | ||
| * snapshot of the table instead of the change stream, the value is always 0. | ||
| */ | ||
| OP_TS( | ||
| "op_ts", | ||
| DataTypes.TIMESTAMP_LTZ(3).notNull(), | ||
| new MetadataConverter() { | ||
| private static final long serialVersionUID = 1L; | ||
|
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| @Override | ||
| public Object read(SourceRecord record) { | ||
| Struct messageStruct = (Struct) record.value(); | ||
| Struct sourceStruct = messageStruct.getStruct(Envelope.FieldName.SOURCE); | ||
| return TimestampData.fromEpochMillis( | ||
| (Long) sourceStruct.get(AbstractSourceInfo.TIMESTAMP_KEY)); | ||
| } | ||
| }); | ||
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| private final String key; | ||
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| private final DataType dataType; | ||
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| private final MetadataConverter converter; | ||
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| Db2ReadableMetaData(String key, DataType dataType, MetadataConverter converter) { | ||
| this.key = key; | ||
| this.dataType = dataType; | ||
| this.converter = converter; | ||
| } | ||
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| public String getKey() { | ||
| return key; | ||
| } | ||
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| public DataType getDataType() { | ||
| return dataType; | ||
| } | ||
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| public MetadataConverter getConverter() { | ||
| return converter; | ||
| } | ||
| } |
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