WidgetDeclaration.java

package org.nlamah.QLS.Model.Declaration;

import java.util.Iterator;
import java.util.Map;

import org.nlamah.QBase.Constants.QBaseQuestionType;
import org.nlamah.QL.Model.Expression.Abstract.ValueExpression;
import org.nlamah.QL.Model.Expression.Literal.TextLiteral;
import org.nlamah.QLS.Interfaces.QLSNodeVisitor;
import org.nlamah.QLS.Model.Abstract.QLSNode;
import org.nlamah.QLS.Model.Abstract.StyleDeclaration;
import org.nlamah.QLS.Model.Value.WidgetTypeEnum;

public class WidgetDeclaration extends StyleDeclaration 
{
	WidgetTypeEnum widgetType;
	QBaseQuestionType returnType;
	Map<TextLiteral, ? extends ValueExpression> values;

	public WidgetDeclaration(WidgetTypeEnum widgetType, QBaseQuestionType returnType, Map<TextLiteral, ? extends ValueExpression> values) 
	{
		this.widgetType = widgetType;
		this.returnType = returnType;
		this.values = values;
	}

	public QBaseQuestionType returnType()
	{
		return returnType;
	}

	public WidgetTypeEnum widgetType()
	{
		return widgetType;
	}

	public Map<TextLiteral, ? extends ValueExpression> values()
	{
		return values;
	}

	@Override
	public QLSNode accept(QLSNodeVisitor visitor) 
	{
		return visitor.visit(this);
	}

	@Override 
	public boolean equals(Object object) 
	{
		if (!super.equals(object))
		{
			return false;
		}

		if (!(object instanceof WidgetDeclaration))
		{
			return false;
		}

		WidgetDeclaration value = (WidgetDeclaration) object;

		if (value.returnType != this.returnType)
		{
			return false;
		}

		if (value.values == null && this.values == null)
		{
			return true;
		}
		
		Iterator<TextLiteral> thisIterator = values.keySet().iterator();
		Iterator<TextLiteral> objectIterator = value.values.keySet().iterator();

		while(thisIterator.hasNext())
		{
			TextLiteral thisKey = thisIterator.next();
			TextLiteral objectKey = objectIterator.next();

			if (!thisKey.equals(objectKey))
			{
				return false;
			}

			ValueExpression thisValue = values.get(thisKey);
			ValueExpression objectValue = value.values.get(objectKey);

			if (!thisValue.equals(objectValue))
			{
				return false;
			}
		}		

		return true;
	}
	
	@Override
	public int hashCode()
	{
		return widgetType.toString().hashCode() + returnType.toString().hashCode();
	}
}