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PARQUET-248: Add ParquetWriter.Builder. #199

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PARQUET-248: Add ParquetWriter.Builder. #199

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622af4c
PARQUET-248: Add ParquetWriter.Builder.
rdblue May 19, 2015
a1a25ee
PARQUET-248: Add write mode and max padding to writer builder.
rdblue Jun 23, 2015
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71 changes: 8 additions & 63 deletions parquet-avro/src/main/java/org/apache/parquet/avro/AvroParquetWriter.java
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Original file line number Diff line number Diff line change
Expand Up @@ -145,67 +145,12 @@ private static <T> WriteSupport<T> writeSupport(Configuration conf,
new AvroSchemaConverter(conf).convert(avroSchema), avroSchema, model);
}

public static class Builder<T> {
private final Path file;
private Configuration conf = new Configuration();
private CompressionCodecName codecName = DEFAULT_COMPRESSION_CODEC_NAME;
private int blockSize = DEFAULT_BLOCK_SIZE;
private int pageSize = DEFAULT_PAGE_SIZE;
private boolean enableDictionary = DEFAULT_IS_DICTIONARY_ENABLED;
private boolean enableValidation = DEFAULT_IS_VALIDATING_ENABLED;
private WriterVersion writerVersion = DEFAULT_WRITER_VERSION;

// avro-specific
public static class Builder<T> extends ParquetWriter.Builder<T, Builder<T>> {
private Schema schema = null;
private GenericData model = SpecificData.get();

private Builder(Path file) {
this.file = file;
}

public Builder<T> withConf(Configuration conf) {
this.conf = conf;
return this;
}

public Builder<T> withCompressionCodec(CompressionCodecName codecName) {
this.codecName = codecName;
return this;
}

public Builder<T> withBlockSize(int blockSize) {
this.blockSize = blockSize;
return this;
}

public Builder<T> withPageSize(int pageSize) {
this.pageSize = pageSize;
return this;
}

public Builder<T> enableDictionaryEncoding() {
this.enableDictionary = true;
return this;
}

public Builder<T> withDictionaryEncoding(boolean enableDictionary) {
this.enableDictionary = enableDictionary;
return this;
}

public Builder<T> enableValidation() {
this.enableValidation = true;
return this;
}

public Builder<T> withValidation(boolean enableValidation) {
this.enableValidation = enableValidation;
return this;
}

public Builder<T> withWriterVersion(WriterVersion version) {
this.writerVersion = version;
return this;
super(file);
}

public Builder<T> withSchema(Schema schema) {
Expand All @@ -218,14 +163,14 @@ public Builder<T> withDataModel(GenericData model) {
return this;
}

private WriteSupport<T> getWriteSupport() {
return AvroParquetWriter.<T>writeSupport(conf, schema, model);
@Override
protected Builder<T> self() {
return this;
}

public ParquetWriter<T> build() throws IOException {
return new AvroParquetWriter<T>(file, getWriteSupport(), codecName,
blockSize, pageSize, enableDictionary, enableValidation,
writerVersion, conf);
@Override
protected WriteSupport<T> getWriteSupport(Configuration conf) {
return AvroParquetWriter.writeSupport(conf, schema, model);
}
}
}
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