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[core] Support catalog options table
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192 changes: 192 additions & 0 deletions
192
paimon-core/src/main/java/org/apache/paimon/table/system/CatalogOptionsTable.java
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| @@ -0,0 +1,192 @@ | ||
| /* | ||
| * 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.paimon.table.system; | ||
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|
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| import org.apache.paimon.data.BinaryString; | ||
| import org.apache.paimon.data.GenericRow; | ||
| import org.apache.paimon.data.InternalRow; | ||
| import org.apache.paimon.disk.IOManager; | ||
| import org.apache.paimon.predicate.Predicate; | ||
| import org.apache.paimon.reader.RecordReader; | ||
| import org.apache.paimon.table.ReadonlyTable; | ||
| import org.apache.paimon.table.Table; | ||
| import org.apache.paimon.table.source.InnerTableRead; | ||
| import org.apache.paimon.table.source.InnerTableScan; | ||
| import org.apache.paimon.table.source.ReadOnceTableScan; | ||
| import org.apache.paimon.table.source.Split; | ||
| import org.apache.paimon.table.source.TableRead; | ||
| import org.apache.paimon.types.DataField; | ||
| import org.apache.paimon.types.RowType; | ||
| import org.apache.paimon.utils.IteratorRecordReader; | ||
| import org.apache.paimon.utils.ProjectedRow; | ||
|
|
||
| import org.apache.paimon.shade.guava30.com.google.common.collect.Iterators; | ||
|
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| import java.io.IOException; | ||
| import java.util.Arrays; | ||
| import java.util.Collections; | ||
| import java.util.Iterator; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
|
|
||
| import static org.apache.paimon.utils.SerializationUtils.newStringType; | ||
|
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| /** This is a system {@link Table} to display catalog options. */ | ||
| public class CatalogOptionsTable implements ReadonlyTable { | ||
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| public static final String CATALOG_OPTIONS = "catalog_options"; | ||
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| private final Map<String, String> catalogOptions; | ||
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| public static final RowType TABLE_TYPE = | ||
| new RowType( | ||
| Arrays.asList( | ||
| new DataField(0, "key", newStringType(false)), | ||
| new DataField(1, "value", newStringType(false)))); | ||
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| public CatalogOptionsTable(Map<String, String> catalogOptions) { | ||
| this.catalogOptions = catalogOptions; | ||
| } | ||
|
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| /** A name to identify this table. */ | ||
| @Override | ||
| public String name() { | ||
| return CATALOG_OPTIONS; | ||
| } | ||
|
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| /** Returns the row type of this table. */ | ||
| @Override | ||
| public RowType rowType() { | ||
| return TABLE_TYPE; | ||
| } | ||
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| @Override | ||
| public InnerTableScan newScan() { | ||
| return new CatalogOptionsScan(); | ||
| } | ||
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| @Override | ||
| public InnerTableRead newRead() { | ||
| return new CatalogOptionsRead(); | ||
| } | ||
|
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| /** Primary keys of this table. */ | ||
| @Override | ||
| public List<String> primaryKeys() { | ||
| return Collections.singletonList("key"); | ||
| } | ||
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| @Override | ||
| public Table copy(Map<String, String> dynamicOptions) { | ||
| return new CatalogOptionsTable(catalogOptions); | ||
| } | ||
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| private class CatalogOptionsScan extends ReadOnceTableScan { | ||
|
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| @Override | ||
| public InnerTableScan withFilter(Predicate predicate) { | ||
| return this; | ||
| } | ||
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| @Override | ||
| public Plan innerPlan() { | ||
| return () -> | ||
| Collections.singletonList( | ||
| new CatalogOptionsTable.CatalogOptionsSplit(catalogOptions)); | ||
| } | ||
| } | ||
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| private static class CatalogOptionsSplit implements Split { | ||
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| private static final long serialVersionUID = 1L; | ||
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| private final Map<String, String> catalogOptions; | ||
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| private CatalogOptionsSplit(Map<String, String> catalogOptions) { | ||
| this.catalogOptions = catalogOptions; | ||
| } | ||
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| @Override | ||
| public long rowCount() { | ||
| return catalogOptions.size(); | ||
| } | ||
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| @Override | ||
| public boolean equals(Object o) { | ||
| if (this == o) { | ||
| return true; | ||
| } | ||
| if (o == null || getClass() != o.getClass()) { | ||
| return false; | ||
| } | ||
| CatalogOptionsTable.CatalogOptionsSplit that = | ||
| (CatalogOptionsTable.CatalogOptionsSplit) o; | ||
| return catalogOptions.equals(that.catalogOptions); | ||
| } | ||
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| @Override | ||
| public int hashCode() { | ||
| return catalogOptions.hashCode(); | ||
| } | ||
| } | ||
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| private static class CatalogOptionsRead implements InnerTableRead { | ||
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| private int[][] projection; | ||
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| @Override | ||
| public InnerTableRead withFilter(Predicate predicate) { | ||
| return this; | ||
| } | ||
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| @Override | ||
| public InnerTableRead withProjection(int[][] projection) { | ||
| this.projection = projection; | ||
| return this; | ||
| } | ||
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| @Override | ||
| public TableRead withIOManager(IOManager ioManager) { | ||
| return this; | ||
| } | ||
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| @Override | ||
| public RecordReader<InternalRow> createReader(Split split) throws IOException { | ||
| if (!(split instanceof CatalogOptionsTable.CatalogOptionsSplit)) { | ||
| throw new IllegalArgumentException("Unsupported split: " + split.getClass()); | ||
| } | ||
| Iterator<InternalRow> rows = | ||
| Iterators.transform( | ||
| ((CatalogOptionsSplit) split).catalogOptions.entrySet().iterator(), | ||
| this::toRow); | ||
| if (projection != null) { | ||
| rows = | ||
| Iterators.transform( | ||
| rows, row -> ProjectedRow.from(projection).replaceRow(row)); | ||
| } | ||
| return new IteratorRecordReader<>(rows); | ||
| } | ||
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| private InternalRow toRow(Map.Entry<String, String> option) { | ||
| return GenericRow.of( | ||
| BinaryString.fromString(option.getKey()), | ||
| BinaryString.fromString(option.getValue())); | ||
| } | ||
| } | ||
| } |
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80 changes: 80 additions & 0 deletions
80
paimon-core/src/test/java/org/apache/paimon/table/system/CatalogOptionsTableTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| /* | ||
| * 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.table.system; | ||
|
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| import org.apache.paimon.catalog.Catalog; | ||
| import org.apache.paimon.catalog.CatalogContext; | ||
| import org.apache.paimon.catalog.CatalogFactory; | ||
| import org.apache.paimon.catalog.Identifier; | ||
| import org.apache.paimon.data.BinaryString; | ||
| import org.apache.paimon.data.GenericRow; | ||
| import org.apache.paimon.data.InternalRow; | ||
| import org.apache.paimon.options.CatalogOptions; | ||
| import org.apache.paimon.options.Options; | ||
| import org.apache.paimon.table.TableTestBase; | ||
| import org.apache.paimon.table.TableType; | ||
|
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| import org.junit.jupiter.api.BeforeEach; | ||
| import org.junit.jupiter.api.Test; | ||
| import org.junit.jupiter.api.io.TempDir; | ||
|
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| import java.util.ArrayList; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
|
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| import static org.assertj.core.api.Assertions.assertThat; | ||
|
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| /** Tests for {@link CatalogOptionsTable}. */ | ||
| public class CatalogOptionsTableTest extends TableTestBase { | ||
|
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| private Catalog catalog; | ||
|
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| private CatalogOptionsTable catalogOptionsTable; | ||
| private Options catalogOptions; | ||
| @TempDir java.nio.file.Path tempDir; | ||
|
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| @BeforeEach | ||
| public void before() throws Exception { | ||
| catalogOptions = new Options(); | ||
| catalogOptions.set(CatalogOptions.TABLE_TYPE, TableType.MANAGED); | ||
| catalogOptions.set("table-default.scan.infer-parallelism", "false"); | ||
| catalogOptions.set(CatalogOptions.WAREHOUSE, tempDir.toUri().toString()); | ||
| catalog = CatalogFactory.createCatalog(CatalogContext.create(catalogOptions)); | ||
| catalogOptionsTable = | ||
| (CatalogOptionsTable) catalog.getTable(new Identifier("sys", "catalog_options")); | ||
| } | ||
|
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| @Test | ||
| public void testCatalogOptionsTable() throws Exception { | ||
| List<InternalRow> expectRow = getExceptedResult(); | ||
| List<InternalRow> result = read(catalogOptionsTable); | ||
| assertThat(result).containsExactlyElementsOf(expectRow); | ||
| } | ||
|
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| private List<InternalRow> getExceptedResult() { | ||
| List<InternalRow> expectedRow = new ArrayList<>(); | ||
| for (Map.Entry<String, String> option : catalogOptions.toMap().entrySet()) { | ||
| expectedRow.add( | ||
| GenericRow.of( | ||
| BinaryString.fromString(option.getKey()), | ||
| BinaryString.fromString(option.getValue()))); | ||
| } | ||
| return expectedRow; | ||
| } | ||
| } |
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