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/*
* 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.sca.implementation.script.provider;
import java.util.ArrayList;
import java.util.List;
import java.util.StringTokenizer;
import org.apache.tuscany.sca.assembly.Property;
import org.apache.tuscany.sca.core.factory.ObjectCreationException;
import org.apache.tuscany.sca.core.factory.ObjectFactory;
import org.apache.tuscany.sca.databinding.Mediator;
import org.apache.tuscany.sca.databinding.SimpleTypeMapper;
import org.apache.tuscany.sca.interfacedef.DataType;
import org.apache.tuscany.sca.interfacedef.util.XMLType;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
/**
* A property factory for script properties.
*
* @version $Rev$ $Date$
*/
public class ScriptPropertyFactory {
private Mediator mediator = null;
private SimpleTypeMapper simpleTypeMapper;
boolean isSimpleType;
public ScriptPropertyFactory(Mediator mediator, SimpleTypeMapper simpleTypeMapper) {
this.mediator = mediator;
this.simpleTypeMapper = simpleTypeMapper;
}
public ObjectFactory createValueFactory(Property property) {
isSimpleType = isSimpleType(property);
Document doc = (Document)property.getValue();
Element rootElement = doc.getDocumentElement();
//FIXME : since scripts use dynamic types we need to generate a dynamic java type using the
//XML structure of the property value. Should this be done in the JavaBeansDataBinding...
Class javaType = null;
if (property.isMany()) {
if (isSimpleType) {
String value = "";
if (rootElement.getChildNodes().getLength() > 0) {
value = rootElement.getChildNodes().item(0).getTextContent();
}
List<String> values =
getSimplePropertyValues(value, javaType);
return new ListObjectFactoryImpl(property,
values,
isSimpleType,
javaType);
} else {
return new ListObjectFactoryImpl(property,
getComplexPropertyValues(doc),
isSimpleType,
javaType);
}
} else {
if (isSimpleType) {
String value = "";
if (rootElement.getChildNodes().getLength() > 0) {
value = rootElement.getChildNodes().item(0).getTextContent();
}
return new ObjectFactoryImpl(property,
value,
isSimpleType,
javaType);
} else {
Object value = getComplexPropertyValues(doc).get(0);
return new ObjectFactoryImpl(property,
value,
isSimpleType,
javaType);
}
}
}
private boolean isSimpleType(Property property) {
if (property.getXSDType() != null) {
return simpleTypeMapper.isSimpleXSDType(property.getXSDType());
} else {
if (property instanceof Document) {
Document doc = (Document)property;
Element element = doc.getDocumentElement();
if (element.getChildNodes().getLength() == 1 &&
element.getChildNodes().item(0).getNodeType() == Node.TEXT_NODE) {
return true;
}
}
}
return false;
}
private List<String> getSimplePropertyValues(String concatenatedValue, Class<?> javaType) {
List<String> propValues = new ArrayList<String>();
StringTokenizer st = null;
if ( javaType.getName().equals("java.lang.String")) {
st = new StringTokenizer(concatenatedValue, "\"");
} else {
st = new StringTokenizer(concatenatedValue);
}
String aToken = null;
while (st.hasMoreTokens()) {
aToken = st.nextToken();
if (aToken.trim().length() > 0) {
propValues.add(aToken);
}
}
return propValues;
}
private List<Node> getComplexPropertyValues(Document document) {
Element rootElement = document.getDocumentElement();
List<Node> propValues = new ArrayList<Node>();
for (int count = 0 ; count < rootElement.getChildNodes().getLength() ; ++count) {
if (rootElement.getChildNodes().item(count).getNodeType() == Node.ELEMENT_NODE) {
propValues.add(rootElement.getChildNodes().item(count));
}
}
return propValues;
}
public abstract class ObjectFactoryImplBase implements ObjectFactory {
protected Property property;
protected Object propertyValue;
protected Class<?> javaType;
protected DataType<XMLType> sourceDataType;
protected DataType<?> targetDataType;
boolean isSimpleType;
public ObjectFactoryImplBase(Property property, Object propertyValue, boolean isSimpleType, Class<?> javaType) {
this.isSimpleType = isSimpleType;
this.property = property;
this.propertyValue = propertyValue;
this.javaType = javaType;
//FIXME : fix this when we have managed to generate dynamic java types
/*sourceDataType =
new DataTypeImpl<XMLType>(DOMDataBinding.NAME, Node.class,
new XMLType(null, this.property.getXSDType()));
TypeInfo typeInfo = null;
if (this.property.getXSDType() != null) {
if (SimpleTypeMapperExtension.isSimpleXSDType(this.property.getXSDType())) {
typeInfo = new TypeInfo(property.getXSDType(), true, null);
} else {
typeInfo = new TypeInfo(property.getXSDType(), false, null);
}
} else {
typeInfo = new TypeInfo(property.getXSDType(), false, null);
}
XMLType xmlType = new XMLType(typeInfo);
String dataBinding = null; //(String)property.getExtensions().get(DataBinding.class.getName());
if (dataBinding != null) {
targetDataType = new DataTypeImpl<XMLType>(dataBinding, javaType, xmlType);
} else {
targetDataType = new DataTypeImpl<XMLType>(dataBinding, javaType, xmlType);
mediator.getDataBindingRegistry().introspectType(targetDataType, null);
}*/
}
}
public class ObjectFactoryImpl extends ObjectFactoryImplBase {
public ObjectFactoryImpl(Property property, Object propertyValue, boolean isSimpleType, Class<?> javaType) {
super(property, propertyValue, isSimpleType, javaType);
}
public Object getInstance() throws ObjectCreationException {
if (isSimpleType) {
return simpleTypeMapper.toJavaObject(property.getXSDType(), (String)propertyValue, null);
} else {
return mediator.mediate(propertyValue, sourceDataType, targetDataType, null);
}
}
}
public class ListObjectFactoryImpl extends ObjectFactoryImplBase {
public ListObjectFactoryImpl(Property property, List<?>propertyValues, boolean isSimpleType, Class<?> javaType) {
super(property, propertyValues, isSimpleType, javaType);
}
public List<?> getInstance() throws ObjectCreationException {
if (isSimpleType) {
List<Object> values = new ArrayList<Object>();
for (String aValue : (List<String>)propertyValue) {
values.add(simpleTypeMapper.toJavaObject(property.getXSDType(), aValue, null));
}
return values;
} else {
List<Object> instances = new ArrayList<Object>();
for (Node aValue : (List<Node>)propertyValue) {
instances.add(mediator.mediate(aValue,
sourceDataType,
targetDataType,
null));
}
return instances;
}
}
}
}
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