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.carbondata.core.metadata.schema;
  
  import java.io.DataInput;
  import java.io.DataOutput;
  import java.io.IOException;
  import java.io.Serializable;
  import java.util.ArrayList;
  import java.util.List;
  
  import org.apache.carbondata.common.annotations.InterfaceAudience;
  import org.apache.carbondata.core.metadata.schema.table.Writable;
  import org.apache.carbondata.core.metadata.schema.table.column.ColumnSchema;
  
  /**
   * Bucketing information
   */
  @InterfaceAudience.Internal
  public class BucketingInfo implements ColumnRangeInfo, Serializable, Writable {
    private static final long serialVersionUID = -0L;
    private List<ColumnSchema> listOfColumns;
    // number of value ranges
    private int numOfRanges;
  
    public BucketingInfo() {
  
    }
  
    public BucketingInfo(List<ColumnSchema> listOfColumns, int numberOfRanges) {
      this.listOfColumns = listOfColumns;
      this.numOfRanges = numberOfRanges;
    }
  
    public List<ColumnSchema> getListOfColumns() {
      return listOfColumns;
    }
  
    @Override
    public int getNumOfRanges() {
      return numOfRanges;
    }
  
    @Override
    public void write(DataOutput output) throws IOException {
      output.writeInt(numOfRanges);
      output.writeInt(listOfColumns.size());
      for (ColumnSchema aColSchema : listOfColumns) {
        aColSchema.write(output);
      }
    }
  
    @Override
    public void readFields(DataInput input) throws IOException {
      this.numOfRanges = input.readInt();
      int colSchemaSize = input.readInt();
      this.listOfColumns = new ArrayList<>(colSchemaSize);
      for (int i = 0; i < colSchemaSize; i++) {
        ColumnSchema aSchema = new ColumnSchema();
        aSchema.readFields(input);
        this.listOfColumns.add(aSchema);
      }
    }
  }
  