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new 62b392b [HUDI-1343] Add standard schema postprocessor which would
rewrite the schema using spark-avro conversion (#2192)
62b392b is described below
commit 62b392b49c13455199e0372204dedf8a371b452c
Author: liujinhui <965147...@qq.com>
AuthorDate: Fri Dec 4 11:28:34 2020 +0800
[HUDI-1343] Add standard schema postprocessor which would rewrite the
schema using spark-avro conversion (#2192)
Co-authored-by: liujh <li...@t3go.cn>
---
.../org/apache/hudi/utilities/UtilHelpers.java | 15 +++++--
.../deltastreamer/HoodieDeltaStreamer.java | 2 +-
.../utilities/schema/SparkAvroPostProcessor.java | 47 ++++++++++++++++++++++
.../hudi/utilities/SparkAvroSchemaProvider.java | 36 +++++++++++++++++
.../hudi/utilities/TestSchemaPostProcessor.java | 38 ++++++++++++++++-
5 files changed, 133 insertions(+), 5 deletions(-)
diff --git
a/hudi-utilities/src/main/java/org/apache/hudi/utilities/UtilHelpers.java
b/hudi-utilities/src/main/java/org/apache/hudi/utilities/UtilHelpers.java
index 45171b3..fb42775 100644
--- a/hudi-utilities/src/main/java/org/apache/hudi/utilities/UtilHelpers.java
+++ b/hudi-utilities/src/main/java/org/apache/hudi/utilities/UtilHelpers.java
@@ -37,11 +37,12 @@ import org.apache.hudi.index.HoodieIndex;
import org.apache.hudi.utilities.checkpointing.InitialCheckPointProvider;
import org.apache.hudi.utilities.deltastreamer.HoodieDeltaStreamerMetrics;
import org.apache.hudi.utilities.schema.DelegatingSchemaProvider;
-import org.apache.hudi.utilities.schema.RowBasedSchemaProvider;
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.schema.SchemaProviderWithPostProcessor;
+import org.apache.hudi.utilities.schema.SparkAvroPostProcessor;
+import org.apache.hudi.utilities.schema.RowBasedSchemaProvider;
import org.apache.hudi.utilities.sources.AvroKafkaSource;
import org.apache.hudi.utilities.sources.JsonKafkaSource;
import org.apache.hudi.utilities.sources.Source;
@@ -400,7 +401,7 @@ public class UtilHelpers {
}
public static SchemaProviderWithPostProcessor
wrapSchemaProviderWithPostProcessor(SchemaProvider provider,
- TypedProperties cfg, JavaSparkContext jssc) {
+ TypedProperties cfg, JavaSparkContext jssc, List<String>
transformerClassNames) {
if (provider == null) {
return null;
@@ -409,7 +410,15 @@ public class UtilHelpers {
if (provider instanceof SchemaProviderWithPostProcessor) {
return (SchemaProviderWithPostProcessor)provider;
}
+
String schemaPostProcessorClass =
cfg.getString(Config.SCHEMA_POST_PROCESSOR_PROP, null);
+ boolean enableSparkAvroPostProcessor =
Boolean.valueOf(cfg.getString(SparkAvroPostProcessor.Config.SPARK_AVRO_POST_PROCESSOR_PROP_ENABLE,
"true"));
+
+ if (transformerClassNames != null && !transformerClassNames.isEmpty()
+ && enableSparkAvroPostProcessor &&
StringUtils.isNullOrEmpty(schemaPostProcessorClass)) {
+ schemaPostProcessorClass = SparkAvroPostProcessor.class.getName();
+ }
+
return new SchemaProviderWithPostProcessor(provider,
Option.ofNullable(createSchemaPostProcessor(schemaPostProcessorClass,
cfg, jssc)));
}
@@ -417,6 +426,6 @@ public class UtilHelpers {
public static SchemaProvider createRowBasedSchemaProvider(StructType
structType,
TypedProperties cfg, JavaSparkContext jssc) {
SchemaProvider rowSchemaProvider = new RowBasedSchemaProvider(structType);
- return wrapSchemaProviderWithPostProcessor(rowSchemaProvider, cfg, jssc);
+ return wrapSchemaProviderWithPostProcessor(rowSchemaProvider, cfg, jssc,
null);
}
}
diff --git
a/hudi-utilities/src/main/java/org/apache/hudi/utilities/deltastreamer/HoodieDeltaStreamer.java
b/hudi-utilities/src/main/java/org/apache/hudi/utilities/deltastreamer/HoodieDeltaStreamer.java
index 6d25f46..10d9453 100644
---
a/hudi-utilities/src/main/java/org/apache/hudi/utilities/deltastreamer/HoodieDeltaStreamer.java
+++
b/hudi-utilities/src/main/java/org/apache/hudi/utilities/deltastreamer/HoodieDeltaStreamer.java
@@ -555,7 +555,7 @@ public class HoodieDeltaStreamer implements Serializable {
this.props = properties.get();
LOG.info("Creating delta streamer with configs : " + props.toString());
this.schemaProvider = UtilHelpers.wrapSchemaProviderWithPostProcessor(
- UtilHelpers.createSchemaProvider(cfg.schemaProviderClassName, props,
jssc), props, jssc);
+ UtilHelpers.createSchemaProvider(cfg.schemaProviderClassName, props,
jssc), props, jssc, cfg.transformerClassNames);
deltaSync = new DeltaSync(cfg, sparkSession, schemaProvider, props,
jssc, fs, conf,
this::onInitializingWriteClient);
diff --git
a/hudi-utilities/src/main/java/org/apache/hudi/utilities/schema/SparkAvroPostProcessor.java
b/hudi-utilities/src/main/java/org/apache/hudi/utilities/schema/SparkAvroPostProcessor.java
new file mode 100644
index 0000000..9f71a7f
--- /dev/null
+++
b/hudi-utilities/src/main/java/org/apache/hudi/utilities/schema/SparkAvroPostProcessor.java
@@ -0,0 +1,47 @@
+/*
+ * 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.schema;
+
+import org.apache.hudi.AvroConversionUtils;
+import org.apache.hudi.common.config.TypedProperties;
+
+import org.apache.avro.Schema;
+import org.apache.spark.api.java.JavaSparkContext;
+
+/**
+ * HUDI-1343:Add standard schema postprocessor which would rewrite the schema
using spark-avro conversion.
+ */
+public class SparkAvroPostProcessor extends SchemaPostProcessor {
+
+ public static class Config {
+ public static final String SPARK_AVRO_POST_PROCESSOR_PROP_ENABLE =
+
"hoodie.deltastreamer.schemaprovider.spark_avro_post_processor.enable";
+ }
+
+ public SparkAvroPostProcessor(TypedProperties props, JavaSparkContext jssc) {
+ super(props, jssc);
+ }
+
+ @Override
+ public Schema processSchema(Schema schema) {
+ return AvroConversionUtils.convertStructTypeToAvroSchema(
+ AvroConversionUtils.convertAvroSchemaToStructType(schema),
RowBasedSchemaProvider.HOODIE_RECORD_STRUCT_NAME,
+ RowBasedSchemaProvider.HOODIE_RECORD_NAMESPACE);
+ }
+}
\ No newline at end of file
diff --git
a/hudi-utilities/src/test/java/org/apache/hudi/utilities/SparkAvroSchemaProvider.java
b/hudi-utilities/src/test/java/org/apache/hudi/utilities/SparkAvroSchemaProvider.java
new file mode 100644
index 0000000..90c0149
--- /dev/null
+++
b/hudi-utilities/src/test/java/org/apache/hudi/utilities/SparkAvroSchemaProvider.java
@@ -0,0 +1,36 @@
+/*
+ * 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 SparkAvroSchemaProvider extends SchemaProvider {
+
+ public SparkAvroSchemaProvider(TypedProperties props, JavaSparkContext jssc)
{
+ super(props, jssc);
+ }
+
+ @Override
+ public Schema getSourceSchema() {
+ return new
Schema.Parser().parse("{\"type\":\"record\",\"name\":\"test\",\"fields\":[{\"name\":
\"day\", \"type\":\"string\"}]}");
+ }
+}
diff --git
a/hudi-utilities/src/test/java/org/apache/hudi/utilities/TestSchemaPostProcessor.java
b/hudi-utilities/src/test/java/org/apache/hudi/utilities/TestSchemaPostProcessor.java
index 39b8457..725743d 100644
---
a/hudi-utilities/src/test/java/org/apache/hudi/utilities/TestSchemaPostProcessor.java
+++
b/hudi-utilities/src/test/java/org/apache/hudi/utilities/TestSchemaPostProcessor.java
@@ -22,15 +22,20 @@ 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.schema.SparkAvroPostProcessor;
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.hudi.utilities.transform.FlatteningTransformer;
import org.apache.spark.api.java.JavaSparkContext;
import org.junit.jupiter.api.Test;
import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
@@ -39,13 +44,19 @@ public class TestSchemaPostProcessor extends
UtilitiesTestBase {
private TypedProperties properties = new TypedProperties();
+ private static String ORIGINAL_SCHEMA =
"{\"name\":\"t3_biz_operation_t_driver\",\"type\":\"record\",\"fields\":[{\"name\":\"ums_id_\",\"type\":[\"null\",\"string\"],\"default\":null},"
+ +
"{\"name\":\"ums_ts_\",\"type\":[\"null\",\"string\"],\"default\":null}]}";
+
+ private static String RESULT_SCHEMA =
"{\"type\":\"record\",\"name\":\"hoodie_source\",\"namespace\":\"hoodie.source\",\"fields\":[{\"name\":\"ums_id_\",\"type\":[\"string\",\"null\"]},"
+ +
"{\"name\":\"ums_ts_\",\"type\":[\"string\",\"null\"]}]}";
+
@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);
+ properties, jsc,null);
Schema schema = provider.getSourceSchema();
assertEquals(schema.getType(), Type.RECORD);
@@ -53,6 +64,31 @@ public class TestSchemaPostProcessor extends
UtilitiesTestBase {
assertNotNull(schema.getField("testString"));
}
+ @Test
+ public void testSparkAvro() throws IOException {
+ properties.put(Config.SCHEMA_POST_PROCESSOR_PROP,
SparkAvroPostProcessor.class.getName());
+ List<String> transformerClassNames = new ArrayList<>();
+ transformerClassNames.add(FlatteningTransformer.class.getName());
+
+ SchemaProvider provider =
+ UtilHelpers.wrapSchemaProviderWithPostProcessor(
+
UtilHelpers.createSchemaProvider(SparkAvroSchemaProvider.class.getName(),
properties, jsc),
+ properties, jsc, transformerClassNames);
+
+ Schema schema = provider.getSourceSchema();
+ assertEquals(schema.getType(), Type.RECORD);
+ assertEquals(schema.getName(), "hoodie_source");
+ assertEquals(schema.getNamespace(), "hoodie.source");
+ assertNotNull(schema.getField("day"));
+ }
+
+ @Test
+ public void testSparkAvroSchema() throws IOException {
+ SparkAvroPostProcessor processor = new SparkAvroPostProcessor(properties,
null);
+ Schema schema = new Schema.Parser().parse(ORIGINAL_SCHEMA);
+ assertEquals(processor.processSchema(schema).toString(), RESULT_SCHEMA);
+ }
+
public static class DummySchemaPostProcessor extends SchemaPostProcessor {
public DummySchemaPostProcessor(TypedProperties props, JavaSparkContext
jssc) {
