org.directwebremoting.convert.CurrencyConverter Maven / Gradle / Ivy

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DWR is easy Ajax for Java. It makes it simple to call Java code directly from Javascript. It gets rid of almost all the boiler plate code between the web browser and your Java code.

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/*
 * Copyright 2008 the original author or authors
 *
 * Licensed 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.directwebremoting.convert;

import java.util.Currency;

import org.directwebremoting.ConversionException;
import org.directwebremoting.extend.AbstractConverter;
import org.directwebremoting.extend.InboundVariable;
import org.directwebremoting.extend.NonNestedOutboundVariable;
import org.directwebremoting.extend.OutboundContext;
import org.directwebremoting.extend.OutboundVariable;

/**
 * An implementation of Converter for java.util.Currency.
 * @author Jose Noheda [[email protected]]
 */
public class CurrencyConverter extends AbstractConverter
{
    /**
	* Parses a currency ISO code.
	*/
    public Object convertInbound(Class paramType, InboundVariable data) throws ConversionException
    {
		if (data.isNull())
		{
			return null;
		}
		try
		{
			Currency currency = Currency.getInstance(data.getValue());
			if (currency == null)
			{
				throw new IllegalArgumentException(data.getValue() + " is not a valid java.util.Currency value");
			}
			return currency;
		}
		catch (Exception ex)
		{
			throw new ConversionException(Currency.class, ex);
		}
    }

    /* (non-Javadoc)
	 * @see org.directwebremoting.Converter#convertOutbound(java.lang.Object, org.directwebremoting.OutboundContext)
	 */
    public OutboundVariable convertOutbound(Object data, OutboundContext outctx) throws ConversionException
    {
        return new NonNestedOutboundVariable('\"' + ((Currency) data).getCurrencyCode() + '\"');
    }

}