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 com.aliyun.odps.table.configuration;
  
  import com.aliyun.odps.table.DataFormat;
  import com.aliyun.odps.table.enviroment.EnvironmentSettings;
  import com.aliyun.odps.table.utils.ArrowUtils;
  import com.aliyun.odps.table.utils.Preconditions;
  import org.apache.arrow.memory.BufferAllocator;
  
  import static com.aliyun.odps.table.utils.ConfigConstants.DEFAULT_BUFFERED_ROW_COUNT;
  
  public class ReaderOptions {
  
      private int batchRowCount;
      private long batchRawSize;
      private BufferAllocator bufferAllocator;
      private boolean reuseBatch;
      private EnvironmentSettings settings;
      private CompressionCodec compressionCodec;
      private DataFormat dataFormat;
  
      private ReaderOptions() {
          this.batchRowCount = DEFAULT_BUFFERED_ROW_COUNT;
          this.bufferAllocator = ArrowUtils.getDefaultRootAllocator();
          this.reuseBatch = true;
          this.compressionCodec = CompressionCodec.NO_COMPRESSION;
          this.dataFormat = ArrowUtils.getDefaultDataFormat();
      }
  
      public int getBatchRowCount() {
          return batchRowCount;
      }
  
      public long getBatchRawSize() {
          return batchRawSize;
      }
  
      public BufferAllocator getBufferAllocator() {
          return bufferAllocator;
      }
  
      public boolean isReuseBatch() {
          return reuseBatch;
      }
  
      public EnvironmentSettings getSettings() {
          return settings;
      }
  
      public DataFormat getDataFormat() {
          return dataFormat;
      }
  
      public CompressionCodec getCompressionCodec() {
          return compressionCodec;
      }
  
      public static ReaderOptions.Builder newBuilder() {
          return new Builder();
      }
  
      public static class Builder {
  
          private final ReaderOptions readerOptions = new ReaderOptions();
  
          public Builder withMaxBatchRowCount(int maxBatchRowCount) {
              Preconditions.checkInteger(maxBatchRowCount, 1, "Batch row count");
              this.readerOptions.batchRowCount = maxBatchRowCount;
              return this;
          }
  
          public Builder withBufferAllocator(BufferAllocator allocator) {
              Preconditions.checkNotNull(allocator, "Buffer allocator");
              this.readerOptions.bufferAllocator = allocator;
              return this;
          }
  
          public Builder withReuseBatch(boolean reuseBatch) {
              this.readerOptions.reuseBatch = reuseBatch;
              return this;
          }
  
          public Builder withCompressionCodec(CompressionCodec codec) {
              this.readerOptions.compressionCodec = codec;
              return this;
          }
  
          public Builder withSettings(EnvironmentSettings settings) {
              this.readerOptions.settings = settings;
              return this;
          }
  
          public Builder withDataFormat(DataFormat dataFormat) {
              Preconditions.checkNotNull(dataFormat, "Data format");
              this.readerOptions.dataFormat = dataFormat;
              return this;
          }
  
          public Builder withMaxBatchRawSize(long batchRawSize) {
              this.readerOptions.batchRawSize = batchRawSize;
              return this;
          }
  
          public ReaderOptions build() {
              Preconditions.checkNotNull(readerOptions.settings,
                      "Environment settings", "required");
              return this.readerOptions;
          }
      }
  }
  