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[HUDI-801] Adding a way to post process schema after it is fetched (#1524)

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* [HUDI-801] Adding a way to post process schema after it is fetched

Co-authored-by: Alex Filipchik <alex.filipchik@csscompany.com>
Co-authored-by: Balaji Varadarajan <balaji.varadarajan@robinhood.com>
This commit is contained in:
Alexander Filipchik
2020-09-19 11:18:36 -07:00
committed by GitHub
parent 7c45894f43
commit c8e19e2def
11 changed files with 286 additions and 32 deletions
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35
hudi-utilities/src/test/java/org/apache/hudi/utilities/DummySchemaProvider.java Normal file
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@@ -0,0 +1,35 @@
/*
* 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.hudi.utilities;
import org.apache.avro.Schema;
import org.apache.hudi.common.config.TypedProperties;
import org.apache.hudi.utilities.schema.SchemaProvider;
import org.apache.spark.api.java.JavaSparkContext;
public class DummySchemaProvider extends SchemaProvider {
public DummySchemaProvider(TypedProperties props, JavaSparkContext jssc) {
super(props, jssc);
}
@Override
public Schema getSourceSchema() {
return Schema.create(Schema.Type.NULL);
}
}

67
hudi-utilities/src/test/java/org/apache/hudi/utilities/TestSchemaPostProcessor.java Normal file
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@@ -0,0 +1,67 @@
/*
* 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.hudi.utilities;
import org.apache.hudi.common.config.TypedProperties;
import org.apache.hudi.utilities.schema.SchemaPostProcessor;
import org.apache.hudi.utilities.schema.SchemaPostProcessor.Config;
import org.apache.hudi.utilities.schema.SchemaProvider;
import org.apache.hudi.utilities.testutils.UtilitiesTestBase;
import org.apache.avro.Schema;
import org.apache.avro.Schema.Type;
import org.apache.avro.SchemaBuilder;
import org.apache.spark.api.java.JavaSparkContext;
import org.junit.jupiter.api.Test;
import java.io.IOException;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
public class TestSchemaPostProcessor extends UtilitiesTestBase {
private TypedProperties properties = new TypedProperties();
@Test
public void testPostProcessor() throws IOException {
properties.put(Config.SCHEMA_POST_PROCESSOR_PROP, DummySchemaPostProcessor.class.getName());
SchemaProvider provider =
UtilHelpers.wrapSchemaProviderWithPostProcessor(
UtilHelpers.createSchemaProvider(DummySchemaProvider.class.getName(), properties, jsc),
properties, jsc);
Schema schema = provider.getSourceSchema();
assertEquals(schema.getType(), Type.RECORD);
assertEquals(schema.getName(), "test");
assertNotNull(schema.getField("testString"));
}
public static class DummySchemaPostProcessor extends SchemaPostProcessor {
public DummySchemaPostProcessor(TypedProperties props, JavaSparkContext jssc) {
super(props, jssc);
}
@Override
public Schema processSchema(Schema schema) {
return SchemaBuilder.record("test").fields().optionalString("testString").endRecord();
}
}
}

15
hudi-utilities/src/test/java/org/apache/hudi/utilities/functional/TestHoodieDeltaStreamer.java
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@@ -39,10 +39,10 @@ import org.apache.hudi.hive.HiveSyncConfig;
import org.apache.hudi.hive.HoodieHiveClient;
import org.apache.hudi.hive.MultiPartKeysValueExtractor;
import org.apache.hudi.keygen.SimpleKeyGenerator;
import org.apache.hudi.utilities.DummySchemaProvider;
import org.apache.hudi.utilities.deltastreamer.HoodieDeltaStreamer;
import org.apache.hudi.utilities.deltastreamer.HoodieDeltaStreamer.Operation;
import org.apache.hudi.utilities.schema.FilebasedSchemaProvider;
import org.apache.hudi.utilities.schema.SchemaProvider;
import org.apache.hudi.utilities.sources.CsvDFSSource;
import org.apache.hudi.utilities.sources.HoodieIncrSource;
import org.apache.hudi.utilities.sources.InputBatch;
@@ -54,7 +54,6 @@ import org.apache.hudi.utilities.testutils.sources.config.SourceConfigs;
import org.apache.hudi.utilities.transform.SqlQueryBasedTransformer;
import org.apache.hudi.utilities.transform.Transformer;
import org.apache.avro.Schema;
import org.apache.avro.generic.GenericRecord;
import org.apache.hadoop.fs.FSDataInputStream;
import org.apache.hadoop.fs.FileSystem;
@@ -1123,16 +1122,4 @@ public class TestHoodieDeltaStreamer extends UtilitiesTestBase {
return sparkSession.createDataFrame(jsc.emptyRDD(), rowDataset.schema());
}
}
public static class DummySchemaProvider extends SchemaProvider {
public DummySchemaProvider(TypedProperties props, JavaSparkContext jssc) {
super(props, jssc);
}
@Override
public Schema getSourceSchema() {
return Schema.create(Schema.Type.NULL);
}
}
}