/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.tuscany.spi.databinding.extension;
import org.apache.tuscany.spi.databinding.PullTransformer;
import org.apache.tuscany.spi.databinding.SimpleTypeMapper;
import org.apache.tuscany.spi.databinding.TransformationContext;
import org.apache.tuscany.spi.idl.ElementInfo;
import org.apache.tuscany.spi.idl.TypeInfo;
/**
* Transformer to convert data from a databinding's representation of simple
* types to Java Objects
*/
public abstract class SimpleType2JavaTransformer<T> extends TransformerExtension<T, Object> implements
PullTransformer<T, Object> {
protected SimpleTypeMapper mapper;
public SimpleType2JavaTransformer() {
this.mapper = new SimpleTypeMapperExtension();
}
public SimpleType2JavaTransformer(SimpleTypeMapper mapper) {
this.mapper = (mapper != null) ? mapper : new SimpleTypeMapperExtension();
}
public Object transform(T source, TransformationContext context) {
TypeInfo simpleType = (TypeInfo)context.getSourceDataType().getMetadata(TypeInfo.class.getName());
if (simpleType == null) {
ElementInfo element =
(ElementInfo)context.getSourceDataType().getMetadata(ElementInfo.class.getName());
simpleType = (TypeInfo)element.getType();
}
return mapper.toJavaObject(simpleType, getText(source), context);
}
public Class getTargetType() {
return Object.class;
}
public int getWeight() {
// Cannot be used for imtermediate
return 10000;
}
/**
* Get the string value from the source
* @param source
* @return A string
*/
protected abstract String getText(T source);
}