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Adding Datasource v2 writing support (#283)
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55 changes: 55 additions & 0 deletions
55
connector/src/main/java/com/google/cloud/spark/bigquery/v2/AvroIntermediateRecordWriter.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| /* | ||
| * Copyright 2018 Google Inc. All Rights Reserved. | ||
| * | ||
| * 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 com.google.cloud.spark.bigquery.v2; | ||
|
|
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| import org.apache.avro.Schema; | ||
| import org.apache.avro.file.DataFileWriter; | ||
| import org.apache.avro.generic.GenericDatumWriter; | ||
| import org.apache.avro.generic.GenericRecord; | ||
| import org.apache.avro.io.BinaryEncoder; | ||
| import org.apache.avro.io.DatumWriter; | ||
| import org.apache.avro.io.EncoderFactory; | ||
|
|
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| import java.io.IOException; | ||
| import java.io.OutputStream; | ||
|
|
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| public class AvroIntermediateRecordWriter implements IntermediateRecordWriter { | ||
|
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| private final OutputStream outputStream; | ||
| private final DatumWriter<GenericRecord> writer; | ||
| private final DataFileWriter<GenericRecord> dataFileWriter; | ||
|
|
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| AvroIntermediateRecordWriter(Schema schema, OutputStream outputStream) throws IOException { | ||
| this.outputStream = outputStream; | ||
| this.writer = new GenericDatumWriter<>(schema); | ||
| this.dataFileWriter = new DataFileWriter<>(writer); | ||
| this.dataFileWriter.create(schema, outputStream); | ||
| } | ||
|
|
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| @Override | ||
| public void write(GenericRecord record) throws IOException { | ||
| dataFileWriter.append(record); | ||
| } | ||
|
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| @Override | ||
| public void close() throws IOException { | ||
| try { | ||
| dataFileWriter.flush(); | ||
| } finally { | ||
| dataFileWriter.close(); | ||
| } | ||
| } | ||
| } |
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53 changes: 53 additions & 0 deletions
53
...ctor/src/main/java/com/google/cloud/spark/bigquery/v2/BigQueryDataSourceReaderModule.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| /* | ||
| * Copyright 2018 Google Inc. All Rights Reserved. | ||
| * | ||
| * 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 com.google.cloud.spark.bigquery.v2; | ||
|
|
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| import com.google.cloud.bigquery.TableInfo; | ||
| import com.google.cloud.bigquery.connector.common.BigQueryClient; | ||
| import com.google.cloud.bigquery.connector.common.BigQueryReadClientFactory; | ||
| import com.google.cloud.spark.bigquery.SparkBigQueryConfig; | ||
| import com.google.inject.Binder; | ||
| import com.google.inject.Module; | ||
| import com.google.inject.Provides; | ||
| import com.google.inject.Singleton; | ||
| import org.apache.spark.sql.types.StructType; | ||
|
|
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| import java.util.Optional; | ||
|
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| public class BigQueryDataSourceReaderModule implements Module { | ||
| @Override | ||
| public void configure(Binder binder) { | ||
| // empty | ||
| } | ||
|
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| @Singleton | ||
| @Provides | ||
| public BigQueryDataSourceReader provideDataSourceReader( | ||
| BigQueryClient bigQueryClient, | ||
| BigQueryReadClientFactory bigQueryReadClientFactory, | ||
| SparkBigQueryConfig config) { | ||
| TableInfo tableInfo = | ||
| bigQueryClient.getSupportedTable( | ||
| config.getTableId(), config.isViewsEnabled(), SparkBigQueryConfig.VIEWS_ENABLED_OPTION); | ||
| return new BigQueryDataSourceReader( | ||
| tableInfo, | ||
| bigQueryClient, | ||
| bigQueryReadClientFactory, | ||
| config.toReadSessionCreatorConfig(), | ||
| config.getFilter(), | ||
| config.getSchema()); | ||
| } | ||
| } |
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