/*
* Copyright 2005 Joe Walker
*
* 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.math.BigDecimal;
import java.math.BigInteger;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
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;
/**
* Converter for all primitive types
* @author Joe Walker [joe at getahead dot ltd dot uk]
*/
public class BigNumberConverter extends AbstractConverter
{
/* (non-Javadoc)
* @see org.directwebremoting.Converter#convertInbound(java.lang.Class, org.directwebremoting.InboundVariable, org.directwebremoting.InboundContext)
*/
public Object convertInbound(Class<?> paramType, InboundVariable data) throws ConversionException
{
if (data.isNull())
{
return null;
}
String value = data.getValue();
if (value == null || value.length() == 0)
{
return null;
}
try
{
if (paramType == BigDecimal.class)
{
return new BigDecimal(value.trim());
}
if (paramType == BigInteger.class)
{
return new BigInteger(value.trim());
}
throw new ConversionException(paramType);
}
catch (NumberFormatException ex)
{
log.debug("Error converting " + value + " to a number.");
throw new ConversionException(paramType, "Format error converting number.");
}
}
/* (non-Javadoc)
* @see org.directwebremoting.Converter#convertOutbound(java.lang.Object, org.directwebremoting.OutboundContext)
*/
public OutboundVariable convertOutbound(Object data, OutboundContext outctx)
{
if (data == null)
{
return new NonNestedOutboundVariable("null");
}
return new NonNestedOutboundVariable(data.toString());
}
/**
* The log stream
*/
private static final Log log = LogFactory.getLog(BigNumberConverter.class);
}