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Making the IcebergWriter always use 1 thread for writing to the data …
…file (#130) Co-authored-by: Sundaram Ananthanarayanan <[email protected]>
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...ceberg/src/test/java/io/mantisrx/connector/iceberg/sink/writer/IcebergTableExtension.java
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| /* | ||
| * Copyright 2021 Netflix, 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. | ||
| */ | ||
|
|
||
| package io.mantisrx.connector.iceberg.sink.writer; | ||
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|
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| import com.google.common.io.Files; | ||
| import java.io.File; | ||
| import lombok.Builder; | ||
| import lombok.Getter; | ||
| import lombok.extern.slf4j.Slf4j; | ||
| import org.apache.commons.io.FileUtils; | ||
| import org.apache.iceberg.PartitionSpec; | ||
| import org.apache.iceberg.Schema; | ||
| import org.apache.iceberg.Table; | ||
| import org.apache.iceberg.catalog.TableIdentifier; | ||
| import org.apache.iceberg.hadoop.HadoopTables; | ||
| import org.apache.iceberg.io.LocationProvider; | ||
| import org.junit.jupiter.api.extension.AfterEachCallback; | ||
| import org.junit.jupiter.api.extension.BeforeAllCallback; | ||
| import org.junit.jupiter.api.extension.BeforeEachCallback; | ||
| import org.junit.jupiter.api.extension.ExtensionContext; | ||
|
|
||
| /** | ||
| * Junit Jupiter Extension to create Iceberg Tables for unit testing with a specified schema, | ||
| * properties, etc.... and to also clean the files after unit tests. | ||
| * <p> | ||
| * The way to use the IcebergTableExtension is by adding the following code to your test class. This | ||
| * creates the table before the test is executed. | ||
| * <pre> | ||
| * @RegisterExtension | ||
| * static IcebergTableExtension tableExtension = | ||
| * IcebergTableExtension.builder() | ||
| * .schema(SCHEMA) | ||
| * .spec(SPEC) | ||
| * .build(); | ||
| * </pre> | ||
| * | ||
| * <p> The created table can be obtained by the {@link IcebergTableExtension#getTable()} method. | ||
| */ | ||
| @Slf4j | ||
| @Builder | ||
| public class IcebergTableExtension implements BeforeAllCallback, BeforeEachCallback, | ||
| AfterEachCallback { | ||
|
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| private File rootDir; | ||
|
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| @Getter | ||
| @Builder.Default | ||
| private String catalog = "catalog"; | ||
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| @Getter | ||
| @Builder.Default | ||
| private String database = "database"; | ||
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| @Getter | ||
| @Builder.Default | ||
| private String tableName = "table"; | ||
|
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| @Getter | ||
| private Schema schema; | ||
| private PartitionSpec spec; | ||
|
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| @Getter | ||
| private Table table; | ||
|
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| @Override | ||
| public void beforeAll(ExtensionContext context) throws Exception { | ||
| log.info("Before All"); | ||
| } | ||
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| @Override | ||
| public void beforeEach(ExtensionContext context) throws Exception { | ||
| log.info("Before Each"); | ||
| if (rootDir == null) { | ||
| rootDir = Files.createTempDir(); | ||
| } | ||
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| final File tableDir = new File(rootDir, getTableIdentifier().toString()); | ||
| final HadoopTables tables = new HadoopTables(); | ||
| table = tables.create(schema, spec, tableDir.getPath()); | ||
| } | ||
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| @Override | ||
| public void afterEach(ExtensionContext context) throws Exception { | ||
| FileUtils.deleteDirectory(rootDir); | ||
| rootDir = null; | ||
| } | ||
|
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| public LocationProvider getLocationProvider() { | ||
| return table.locationProvider(); | ||
| } | ||
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| public TableIdentifier getTableIdentifier() { | ||
| return TableIdentifier.of(catalog, database, tableName); | ||
| } | ||
| } |
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