jp.co.yahoo.yosegi.spread.column.SpreadColumn Maven / Gradle / Ivy

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/**
 * 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 jp.co.yahoo.yosegi.spread.column;

import static jp.co.yahoo.yosegi.constants.PrimitiveByteLength.JAVA_OBJECT_LENGTH;

import jp.co.yahoo.yosegi.message.design.IField;
import jp.co.yahoo.yosegi.message.design.StructContainerField;
import jp.co.yahoo.yosegi.message.objects.PrimitiveObject;
import jp.co.yahoo.yosegi.message.parser.IParser;
import jp.co.yahoo.yosegi.spread.Spread;
import jp.co.yahoo.yosegi.spread.column.filter.IFilter;

import java.io.IOException;
import java.io.UncheckedIOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import java.util.stream.IntStream;

public class SpreadColumn implements IColumn {

  private String columnName;
  private Spread spread;
  private IColumn parentsColumn = NullColumn.getInstance();
  private ICell defaultCell;

  /**
   * Initialized by setting the column name.
   */
  public SpreadColumn( final String columnName ) {
    this.columnName = columnName;
    spread = new Spread( this );
    defaultCell = EmptySpreadCell.getInstance();
  }

  @Override
  public void setColumnName( final String columnName ) {
    this.columnName = columnName;
  }

  @Override
  public String getColumnName() {
    return columnName;
  }

  @Override
  public ColumnType getColumnType() {
    return ColumnType.SPREAD;
  }

  @Override
  public void setParentsColumn( final IColumn parentsColumn ) {
    this.parentsColumn = parentsColumn;
  }

  @Override
  public IColumn getParentsColumn() {
    return parentsColumn;
  }

  @Override
  public int add( final ColumnType type , final Object obj , final int index ) throws IOException {
    if ( type != getColumnType() ) {
      throw new IOException( "Incorrect input data type : " + obj.getClass().getName() );
    }
    int totalBytes = 0;
    spread.setRowCount( index );
    if ( obj instanceof Map ) {
      totalBytes += spread.addRow( (Map)obj );
      totalBytes += JAVA_OBJECT_LENGTH * ( (Map)obj ).size();
    } else {
      totalBytes += spread.addParserRow( (IParser)obj );
      totalBytes += JAVA_OBJECT_LENGTH * ( (IParser)obj ).size();
    }
    return totalBytes;
  }

  @Override
  public void addCell(
      final ColumnType type , final ICell cell , final int index ) throws IOException {}

  @Override
  public ICellManager getCellManager() {
    return null;
  }

  @Override
  public void setCellManager( final ICellManager cellManager ) {
  }

  public void setSpread( final Spread spread ) {
    this.spread = spread;
  }

  @Override
  public List getColumnKeys() {
    return spread.getColumnKeys();
  }

  @Override
  public int getColumnSize() {
    return spread.getColumnSize();
  }

  @Override
  public List getListColumn() {
    return spread.getListColumn();
  }

  @Override
  public IColumn getColumn( final int index ) {
    return spread.getColumn( index );
  }

  @Override
  public IColumn getColumn( final String columnName ) {
    return spread.getColumn( columnName );
  }

  @Override
  public IColumn getColumn( final ColumnType type ) {
    return NullColumn.getInstance();
  }

  @Override
  public ICell get( final int index ) {
    return new SpreadCell( new SpreadLink( spread , index ) );
  }

  @Override
  public void setDefaultCell( final ICell defaultCell ) {
    this.defaultCell = defaultCell;
  }

  @Override
  public int size() {
    return spread.size();
  }

  @Override
  public IField getSchema() throws IOException {
    return getSchema( getColumnName() );
  }

  @Override
  public IField getSchema( final String schemaName ) throws IOException {
    StructContainerField schema = new StructContainerField( schemaName );
    IntStream.range( 0 , spread.getColumnSize() )
        .forEach( i -> {
          try {
            schema.set( spread.getColumn(i).getSchema() );
          } catch ( IOException ex ) {
            throw new UncheckedIOException( "IOException addRow in lambda." , ex );
          }
        } );
    return schema;
  }

  @Override
  public String toString() {
    StringBuffer result = new StringBuffer();
    result.append( String.format( "Column name : %s\n" , getColumnName() ) );
    result.append( String.format( "Column type : %s<" , getColumnType() ) );
    result.append( IntStream.range( 0 , spread.getColumnSize() )
        .mapToObj( i -> {
          IColumn column = spread.getColumn(i);
          return String.format( "%s %s" , column.getColumnName() , column.getColumnType() );
        } )
        .collect( Collectors.joining( "," ) ) );
    result.append( ">\n" );
    result.append( "--------------------------\n" );
    IntStream.range( 0 , size() )
        .forEach( i -> {
          result.append( String.format( "CELL-%d: %s\n" , i , get( i ).toString() ) );
        } );

    return result.toString();
  }

  public static class EmptySpreadCell implements ICell> {

    private static final EmptySpreadCell EMPTY_CELL = new EmptySpreadCell();
    private static final Map EMPTY_MAP = new HashMap();

    private EmptySpreadCell() {}

    public static ICell getInstance() {
      return EMPTY_CELL;
    }

    @Override
    public Map getRow() {
      return EMPTY_MAP;
    }

    @Override
    public void setRow( final Object object ) {
    }

    @Override
    public ColumnType getType() {
      return ColumnType.SPREAD;
    }

    @Override
    public String toString() {
      StringBuffer result = new StringBuffer();
      result.append( String.format( "(%s)" , getType() ) );
      result.append( "{}" );

      return result.toString();
    }

  }

}