package net.toodarkpark.util.comparison;

import java.util.*;
import org.apache.commons.beanutils.PropertyUtils;
import org.apache.commons.collections.Predicate;

/*
 * ContainsPredicate
 * See if a string contains another string, or if a Collection contains a given value.
 */
public class ContainsPredicate implements Predicate
{
    protected Comparator comparator;
    protected Object comparisonValue;
    protected boolean ignoreCase;
    
    private ContainsPredicate()
    {
        super();
        
        comparator = null;
        comparisonValue = null;
        ignoreCase = false;
    }

    public ContainsPredicate( Comparator aComparator, Object aSearchValue )
    {
        this( aComparator, aSearchValue, false );
    }
    
    public ContainsPredicate( Comparator aComparator, Object aSearchValue, boolean shouldIgnoreCase )
    {
        this();
        
        comparator = aComparator;
        comparisonValue = aSearchValue;
        ignoreCase = shouldIgnoreCase;
    } 
    
    public boolean evaluate( Object value ) throws ClassCastException, NullPointerException, Exception
    {
        if( comparator == null )
        {
            if( value instanceof Map )
            {
                return( ((Map)value).containsKey( searchValue ) );
            }
            else if( compareValue instanceof Collection )
            {
                return ((Collection)value).contains( searchValue );
            }
        }
		else
		{
			return comparator.compare( value, comparisonValue ) == 0;
		}
        
        return false;
    }
}