?? enumconverter.java
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/*
* 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 uk.ltd.getahead.dwr.convert;
import java.lang.reflect.Method;
import uk.ltd.getahead.dwr.ConversionException;
import uk.ltd.getahead.dwr.Converter;
import uk.ltd.getahead.dwr.ConverterManager;
import uk.ltd.getahead.dwr.InboundContext;
import uk.ltd.getahead.dwr.InboundVariable;
import uk.ltd.getahead.dwr.Messages;
import uk.ltd.getahead.dwr.OutboundContext;
import uk.ltd.getahead.dwr.compat.BaseV10Converter;
import uk.ltd.getahead.dwr.util.LocalUtil;
/**
* Converter for all primitive types
* @author Joe Walker [joe at getahead dot ltd dot uk]
*/
public class EnumConverter extends BaseV10Converter implements Converter
{
/* (non-Javadoc)
* @see uk.ltd.getahead.dwr.Converter#init(uk.ltd.getahead.dwr.DefaultConfiguration)
*/
public void setConverterManager(ConverterManager config)
{
}
/* (non-Javadoc)
* @see uk.ltd.getahead.dwr.Converter#convertInbound(java.lang.Class, java.util.List, uk.ltd.getahead.dwr.InboundVariable, uk.ltd.getahead.dwr.InboundContext)
*/
public Object convertInbound(Class paramType, InboundVariable iv, InboundContext inctx) throws ConversionException
{
String value = LocalUtil.decode(iv.getValue());
Object[] values = null;
try
{
Method getter = paramType.getMethod("values", new Class[0]); //$NON-NLS-1$
values = (Object[]) getter.invoke(paramType, null);
}
catch (NoSuchMethodException ex)
{
// We would like to have done: if (!paramType.isEnum())
// But this catch block has the same effect
throw new ConversionException(Messages.getString("EnumConverter.TypeNotEnum", paramType)); //$NON-NLS-1$
}
catch (Exception ex)
{
throw new ConversionException(Messages.getString("EnumConverter.ReflectionError", paramType), ex); //$NON-NLS-1$
}
for (int i = 0; i < values.length; i++)
{
Object en = values[i];
if (value.equals(en.toString()))
{
return en;
}
}
throw new ConversionException(Messages.getString("EnumConverter.NoMatch", value, paramType)); //$NON-NLS-1$
}
/* (non-Javadoc)
* @see uk.ltd.getahead.dwr.Converter#convertOutbound(java.lang.Object, java.lang.String, uk.ltd.getahead.dwr.OutboundContext)
*/
public String convertOutbound(Object object, String varname, OutboundContext outctx)
{
return "var " + varname + "='" + object.toString() + "';"; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
}
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