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[Feature][CDC] Support for preferring numeric fields as split keys (#…
…5384) * [Feature][CDC] Support for preferring numeric fields as split keys --------- Co-authored-by: zhouyao <[email protected]>
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...nnector-cdc/connector-cdc-base/src/test/java/jdbc/source/JdbcSourceChunkSplitterTest.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 jdbc.source; | ||
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| import org.apache.seatunnel.api.table.catalog.ConstraintKey; | ||
| import org.apache.seatunnel.api.table.catalog.PrimaryKey; | ||
| import org.apache.seatunnel.api.table.type.BasicType; | ||
| import org.apache.seatunnel.api.table.type.DecimalType; | ||
| import org.apache.seatunnel.api.table.type.SeaTunnelDataType; | ||
| import org.apache.seatunnel.api.table.type.SeaTunnelRowType; | ||
| import org.apache.seatunnel.connectors.cdc.base.config.JdbcSourceConfig; | ||
| import org.apache.seatunnel.connectors.cdc.base.dialect.JdbcDataSourceDialect; | ||
| import org.apache.seatunnel.connectors.cdc.base.relational.connection.JdbcConnectionPoolFactory; | ||
| import org.apache.seatunnel.connectors.cdc.base.source.enumerator.splitter.AbstractJdbcSourceChunkSplitter; | ||
| import org.apache.seatunnel.connectors.cdc.base.source.enumerator.splitter.ChunkSplitter; | ||
| import org.apache.seatunnel.connectors.cdc.base.source.reader.external.FetchTask; | ||
| import org.apache.seatunnel.connectors.cdc.base.source.reader.external.JdbcSourceFetchTaskContext; | ||
| import org.apache.seatunnel.connectors.cdc.base.source.split.SourceSplitBase; | ||
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| import org.junit.jupiter.api.Assertions; | ||
| import org.junit.jupiter.api.Test; | ||
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| import io.debezium.jdbc.JdbcConnection; | ||
| import io.debezium.relational.Column; | ||
| import io.debezium.relational.Table; | ||
| import io.debezium.relational.TableId; | ||
| import io.debezium.relational.history.TableChanges; | ||
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| import java.sql.SQLException; | ||
| import java.sql.Types; | ||
| import java.util.ArrayList; | ||
| import java.util.Arrays; | ||
| import java.util.List; | ||
| import java.util.Optional; | ||
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| public class JdbcSourceChunkSplitterTest { | ||
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| @Test | ||
| public void splitColumnTest() throws SQLException { | ||
| TestJdbcSourceChunkSplitter testJdbcSourceChunkSplitter = | ||
| new TestJdbcSourceChunkSplitter(null, new TestSourceDialect()); | ||
| Column splitColumn = | ||
| testJdbcSourceChunkSplitter.getSplitColumn( | ||
| null, new TestSourceDialect(), new TableId("", "", "")); | ||
| Assertions.assertEquals(splitColumn.typeName(), "tinyint"); | ||
| } | ||
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| private class TestJdbcSourceChunkSplitter extends AbstractJdbcSourceChunkSplitter { | ||
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| public TestJdbcSourceChunkSplitter( | ||
| JdbcSourceConfig sourceConfig, JdbcDataSourceDialect dialect) { | ||
| super(sourceConfig, dialect); | ||
| } | ||
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| @Override | ||
| public Object[] queryMinMax(JdbcConnection jdbc, TableId tableId, String columnName) | ||
| throws SQLException { | ||
| return new Object[0]; | ||
| } | ||
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| @Override | ||
| public Object queryMin( | ||
| JdbcConnection jdbc, TableId tableId, String columnName, Object excludedLowerBound) | ||
| throws SQLException { | ||
| return null; | ||
| } | ||
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| @Override | ||
| public Object[] sampleDataFromColumn( | ||
| JdbcConnection jdbc, TableId tableId, String columnName, int samplingRate) | ||
| throws SQLException { | ||
| return new Object[0]; | ||
| } | ||
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| @Override | ||
| public Object queryNextChunkMax( | ||
| JdbcConnection jdbc, | ||
| TableId tableId, | ||
| String columnName, | ||
| int chunkSize, | ||
| Object includedLowerBound) | ||
| throws SQLException { | ||
| return null; | ||
| } | ||
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| @Override | ||
| public Long queryApproximateRowCnt(JdbcConnection jdbc, TableId tableId) | ||
| throws SQLException { | ||
| return null; | ||
| } | ||
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| @Override | ||
| public String buildSplitScanQuery( | ||
| TableId tableId, | ||
| SeaTunnelRowType splitKeyType, | ||
| boolean isFirstSplit, | ||
| boolean isLastSplit) { | ||
| return null; | ||
| } | ||
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| @Override | ||
| public SeaTunnelDataType<?> fromDbzColumn(Column splitColumn) { | ||
| String typeName = splitColumn.typeName(); | ||
| switch (typeName) { | ||
| case "varchar": | ||
| return BasicType.STRING_TYPE; | ||
| case "tinyint": | ||
| return BasicType.BYTE_TYPE; | ||
| case "smallint": | ||
| return BasicType.SHORT_TYPE; | ||
| case "int": | ||
| return BasicType.INT_TYPE; | ||
| case "bigint": | ||
| return BasicType.LONG_TYPE; | ||
| case "decimal": | ||
| return new DecimalType(20, 0); | ||
| default: | ||
| return BasicType.STRING_TYPE; | ||
| } | ||
| } | ||
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| @Override | ||
| public Column getSplitColumn( | ||
| JdbcConnection jdbc, JdbcDataSourceDialect dialect, TableId tableId) | ||
| throws SQLException { | ||
| return super.getSplitColumn(jdbc, dialect, tableId); | ||
| } | ||
| } | ||
|
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| private class TestSourceDialect implements JdbcDataSourceDialect { | ||
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| @Override | ||
| public String getName() { | ||
| return null; | ||
| } | ||
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| @Override | ||
| public boolean isDataCollectionIdCaseSensitive(JdbcSourceConfig sourceConfig) { | ||
| return false; | ||
| } | ||
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| @Override | ||
| public ChunkSplitter createChunkSplitter(JdbcSourceConfig sourceConfig) { | ||
| return null; | ||
| } | ||
|
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| @Override | ||
| public List<TableId> discoverDataCollections(JdbcSourceConfig sourceConfig) { | ||
| return null; | ||
| } | ||
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| @Override | ||
| public JdbcConnectionPoolFactory getPooledDataSourceFactory() { | ||
| return null; | ||
| } | ||
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| @Override | ||
| public TableChanges.TableChange queryTableSchema(JdbcConnection jdbc, TableId tableId) { | ||
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| Table table = | ||
| Table.editor() | ||
| .tableId(tableId) | ||
| .addColumns( | ||
| Column.editor() | ||
| .name("string_col") | ||
| .jdbcType(Types.VARCHAR) | ||
| .type("varchar") | ||
| .create(), | ||
| Column.editor() | ||
| .name("smallint") | ||
| .jdbcType(Types.SMALLINT) | ||
| .type("smallint") | ||
| .create(), | ||
| Column.editor() | ||
| .name("int") | ||
| .jdbcType(Types.INTEGER) | ||
| .type("int") | ||
| .create(), | ||
| Column.editor() | ||
| .name("decimal") | ||
| .jdbcType(Types.DECIMAL) | ||
| .type("decimal") | ||
| .create(), | ||
| Column.editor() | ||
| .name("tinyint_col") | ||
| .jdbcType(Types.TINYINT) | ||
| .type("tinyint") | ||
| .create(), | ||
| Column.editor() | ||
| .name("bigint_col") | ||
| .jdbcType(Types.BIGINT) | ||
| .type("bigint") | ||
| .create()) | ||
| .create(); | ||
| return new TableChanges.TableChange(TableChanges.TableChangeType.CREATE, table); | ||
| } | ||
|
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| @Override | ||
| public FetchTask<SourceSplitBase> createFetchTask(SourceSplitBase sourceSplitBase) { | ||
| return null; | ||
| } | ||
|
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| @Override | ||
| public JdbcSourceFetchTaskContext createFetchTaskContext( | ||
| SourceSplitBase sourceSplitBase, JdbcSourceConfig taskSourceConfig) { | ||
| return null; | ||
| } | ||
|
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| @Override | ||
| public Optional<PrimaryKey> getPrimaryKey(JdbcConnection jdbcConnection, TableId tableId) | ||
| throws SQLException { | ||
| return Optional.of( | ||
| PrimaryKey.of( | ||
| "pkName", | ||
| Arrays.asList( | ||
| "string_col", | ||
| "smallint", | ||
| "int", | ||
| "decimal", | ||
| "tinyint_col", | ||
| "bigint_col"))); | ||
| } | ||
|
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| @Override | ||
| public List<ConstraintKey> getUniqueKeys(JdbcConnection jdbcConnection, TableId tableId) | ||
| throws SQLException { | ||
| return new ArrayList<ConstraintKey>(); | ||
| } | ||
| } | ||
| } |