    001/*
    002 * Copyright (c) 2007-2017 Xplenty, Inc. All Rights Reserved.
    003 *
    004 * Project and contact information: http://www.cascading.org/
    005 *
    006 * This file is part of the Cascading project.
    007 *
    008 * Licensed under the Apache License, Version 2.0 (the "License");
    009 * you may not use this file except in compliance with the License.
    010 * You may obtain a copy of the License at
    011 *
    012 *     http://www.apache.org/licenses/LICENSE-2.0
    013 *
    014 * Unless required by applicable law or agreed to in writing, software
    015 * distributed under the License is distributed on an "AS IS" BASIS,
    016 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    017 * See the License for the specific language governing permissions and
    018 * limitations under the License.
    019 */
    020
    021package cascading.tuple.coerce;
    022
    023import java.lang.reflect.Type;
    024import java.util.Map;
    025
    026/**
    027 *
    028 */
    029public class IntegerObjectCoerce extends Coercions.Coerce<Integer>
    030  {
    031  protected IntegerObjectCoerce( Map<Type, Coercions.Coerce> map )
    032    {
    033    super( map );
    034    }
    035
    036  @Override
    037  public Class<Integer> getCanonicalType()
    038    {
    039    return Integer.class;
    040    }
    041
    042  @Override
    043  public Integer coerce( Object value )
    044    {
    045    if( value instanceof Number )
    046      return ( (Number) value ).intValue();
    047    else if( value == null || value.toString().isEmpty() )
    048      return null;
    049    else
    050      return Integer.parseInt( value.toString() );
    051    }
    052  }