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Liferay Portal Workflow Kaleo Service
/*
* jabsorb - a Java to JavaScript Advanced Object Request Broker
* http://www.jabsorb.org
*
* Copyright 2007-2009 The jabsorb team
*
* based on original code from
* JSON-RPC-Java - a JSON-RPC to Java Bridge with dynamic invocation
*
* Copyright Metaparadigm Pte. Ltd. 2004.
* Michael Clark
*
* 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.jabsorb.serializer.impl;
import java.math.BigDecimal;
import org.jabsorb.serializer.AbstractSerializer;
import org.jabsorb.serializer.MarshallException;
import org.jabsorb.serializer.ObjectMatch;
import org.jabsorb.serializer.SerializerState;
import org.jabsorb.serializer.UnmarshallException;
/**
* Serialises numeric values
*/
public class NumberSerializer extends AbstractSerializer
{
/**
* Unique serialisation id.
*/
private final static long serialVersionUID = 2;
/**
* Classes that this can serialise.
*/
private static Class[] _serializableClasses = new Class[] { Integer.class,
Byte.class, Short.class, Long.class, Float.class, Double.class,
BigDecimal.class };
/**
* Classes that this can serialise to.
*/
private static Class[] _JSONClasses = new Class[] { Integer.class,
Byte.class, Short.class, Long.class, Float.class, Double.class,
BigDecimal.class, String.class };
public Class[] getSerializableClasses()
{
return _serializableClasses;
}
public Class[] getJSONClasses()
{
return _JSONClasses;
}
/**
* Converts a javascript object to a Java number
*
* @param clazz The class of the Java object that it should be converted to
* @param jso The javascript object
* @return A Java primitive type in its java.lang wrapper.
* @throws NumberFormatException If clazz is numeric and jso does not parse
* into a number.
*/
public Object toNumber(Class clazz, Object jso) throws NumberFormatException
{
// TODO: isn't this largely a dupe of PrimitiveSerialiser.toPrimitive()?
// We should probably have just one method that does this, or have one use
// the other
if (clazz == Integer.class)
{
if (jso instanceof String)
{
return new Integer((String) jso);
}
return new Integer(((Number) jso).intValue());
}
else if (clazz == Long.class)
{
if (jso instanceof String)
{
return new Long((String) jso);
}
return new Long(((Number) jso).longValue());
}
else if (clazz == Short.class)
{
if (jso instanceof String)
{
return new Short((String) jso);
}
return new Short(((Number) jso).shortValue());
}
else if (clazz == Byte.class)
{
if (jso instanceof String)
{
return new Byte((String) jso);
}
return new Byte(((Number) jso).byteValue());
}
else if (clazz == Float.class)
{
if (jso instanceof String)
{
return new Float((String) jso);
}
return new Float(((Number) jso).floatValue());
}
else if (clazz == Double.class)
{
if (jso instanceof String)
{
return new Double((String) jso);
}
return new Double(((Number) jso).doubleValue());
}
else if (clazz == BigDecimal.class)
{
if (jso instanceof String)
{
return new BigDecimal((String) jso);
}
return new BigDecimal(((Number) jso).doubleValue()); // hmmm?
}
return null;
}
public ObjectMatch tryUnmarshall(SerializerState state, Class clazz,
Object jso) throws UnmarshallException
{
try
{
toNumber(clazz, jso);
}
catch (NumberFormatException e)
{
throw new UnmarshallException("not a number", e);
}
state.setSerialized(jso, ObjectMatch.OKAY);
return ObjectMatch.OKAY;
}
public Object unmarshall(SerializerState state, Class clazz, Object jso)
throws UnmarshallException
{
try
{
if (jso == null || "".equals(jso))
{
return null;
}
Object num = toNumber(clazz, jso);
state.setSerialized(jso, num);
return num;
}
catch (NumberFormatException e)
{
throw new UnmarshallException("cannot convert object " + jso
+ " to type " + clazz.getName(), e);
}
}
public Object marshall(SerializerState state, Object p, Object o)
throws MarshallException
{
return o;
}
}