content: /*
   * 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.asterix.external.writer.printer;
  
  import java.io.IOException;
  import java.io.OutputStream;
  
  import org.apache.asterix.external.input.record.reader.hdfs.parquet.AsterixParquetRuntimeException;
  import org.apache.asterix.external.util.ExternalDataConstants;
  import org.apache.asterix.external.writer.printer.parquet.AsterixParquetWriter;
  import org.apache.asterix.om.types.IAType;
  import org.apache.asterix.runtime.writer.IExternalPrinter;
  import org.apache.hadoop.conf.Configuration;
  import org.apache.hyracks.api.exceptions.HyracksDataException;
  import org.apache.hyracks.data.std.api.IValueReference;
  import org.apache.parquet.column.ParquetProperties;
  import org.apache.parquet.hadoop.ParquetWriter;
  import org.apache.parquet.hadoop.metadata.CompressionCodecName;
  import org.apache.parquet.schema.MessageType;
  
  public class ParquetExternalFilePrinter implements IExternalPrinter {
      private final IAType typeInfo;
      private final CompressionCodecName compressionCodecName;
      private final MessageType schema;
      private ParquetOutputFile parquetOutputFile;
      private ParquetWriter<IValueReference> writer;
      private final long rowGroupSize;
      private final int pageSize;
      private final ParquetProperties.WriterVersion writerVersion;
  
      public ParquetExternalFilePrinter(CompressionCodecName compressionCodecName, MessageType parquetSchema,
              IAType typeInfo, long rowGroupSize, int pageSize, ParquetProperties.WriterVersion writerVersion) {
          this.compressionCodecName = compressionCodecName;
          this.schema = parquetSchema;
          this.typeInfo = typeInfo;
          this.rowGroupSize = rowGroupSize;
          this.pageSize = pageSize;
          this.writerVersion = writerVersion;
      }
  
      @Override
      public void open() throws HyracksDataException {
      }
  
      @Override
      public void newStream(OutputStream outputStream) throws HyracksDataException {
          if (parquetOutputFile != null) {
              close();
          }
          parquetOutputFile = new ParquetOutputFile(outputStream);
          Configuration conf = new Configuration();
  
          try {
              writer = AsterixParquetWriter.builder(parquetOutputFile).withCompressionCodec(compressionCodecName)
                      .withType(schema).withTypeInfo(typeInfo).withRowGroupSize(rowGroupSize).withPageSize(pageSize)
                      .withDictionaryPageSize(ExternalDataConstants.PARQUET_DICTIONARY_PAGE_SIZE)
                      .enableDictionaryEncoding().withValidation(false).withWriterVersion(writerVersion).withConf(conf)
                      .build();
          } catch (IOException e) {
              throw HyracksDataException.create(e);
          }
  
      }
  
      @Override
      public void print(IValueReference value) throws HyracksDataException {
          try {
              this.writer.write(value);
          } catch (AsterixParquetRuntimeException e) {
              throw e.getHyracksDataException();
          } catch (IOException e) {
              throw HyracksDataException.create(e);
          }
      }
  
      @Override
      public void close() throws HyracksDataException {
          if (this.writer != null) {
              try {
                  this.writer.close();
              } catch (IOException e) {
                  throw HyracksDataException.create(e);
              }
          }
      }
  }
  