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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.spring.provider;
import java.net.URL;
import java.util.List;
import org.apache.tuscany.sca.assembly.ComponentProperty;
import org.apache.tuscany.sca.assembly.Property;
import org.apache.tuscany.sca.assembly.Reference;
import org.apache.tuscany.sca.context.PropertyValueFactory;
import org.apache.tuscany.sca.implementation.spring.SpringImplementation;
import org.apache.tuscany.sca.interfacedef.java.JavaInterface;
import org.apache.tuscany.sca.runtime.RuntimeComponent;
import org.springframework.context.ApplicationContext;
/**
* Wrapper for SpringImplementation
*/
public class SpringImplementationWrapper {
private SpringImplementation implementation;
private ApplicationContext parentApplicationContext;
private RuntimeComponent component;
private PropertyValueFactory propertyFactory;
public SpringImplementationWrapper(SpringImplementation implementation,
RuntimeComponent component,
PropertyValueFactory propertyFactory) {
this.implementation = implementation;
this.component = component;
this.propertyFactory = propertyFactory;
}
public String getURI() {
return implementation.getURI();
}
public List<URL> getResource() {
return implementation.getResource();
}
public String getComponentName() {
return component.getName();
}
/**
* Method to create a Java Bean for a Property value
* @param <B> the class type of the Bean
* @param requiredType - a Class object for the required type
* @param name - the Property name
* @return - a Bean of the specified property, with value set
*/
private <B> B getPropertyBean(Class<?> requiredType, String name) {
B propertyObject = null;
// Get the component's list of properties
List<ComponentProperty> props = component.getProperties();
for (ComponentProperty prop : props) {
if (prop.getName().equals(name)) {
// On finding the property, create a factory for it and create a Bean using
// the factory
propertyObject = (B)propertyFactory.createPropertyValue(prop, requiredType);
} // end if
} // end for
return propertyObject;
}
/**
* Creates a proxy Bean for a reference
* @param <B> the Business interface type for the reference
* @param businessInterface - the business interface as a Class
* @param referenceName - the name of the Reference
* @return an Bean of the type defined by <B>
*/
private <B> B getService(Class<B> businessInterface, String referenceName) {
return component.getComponentContext().getService(businessInterface, referenceName);
}
/**
* Get a Bean for a reference or for a property.
*
* @param name - the name of the Bean required
* @param requiredType - the required type of the Bean (either a Java class or a Java interface)
* @return Object - a Bean which matches the requested bean
*/
public Object getBean(String name, Class<?> requiredType) {
// The expectation is that the requested Bean is either a reference or a property
// from the Spring context
for (Reference reference : implementation.getReferences()) {
if (reference.getName().equals(name)) {
// Extract the Java interface for the reference (it can't be any other interface type
// for a Spring application context)
if (requiredType == null) {
JavaInterface javaInterface = (JavaInterface)reference.getInterfaceContract().getInterface();
requiredType = javaInterface.getJavaClass();
}
// Create and return the proxy for the reference
return getService(requiredType, reference.getName());
} // end if
} // end for
// For a property, get the name and the required Java type and create a Bean
// of that type with the value inserted.
for (Property property : implementation.getProperties()) {
if (property.getName().equals(name)) {
if (requiredType == null) {
// The following code only deals with a subset of types and was superceded
// by the information from the implementation (which uses Classes as found
// in the Spring implementation itself.
//requiredType = JavaXMLMapper.getJavaType( property.getXSDType() );
requiredType = implementation.getPropertyClass(name);
}
return getPropertyBean(requiredType, property.getName());
} // end if
} // end for
// TODO: NoSuchBeanException
// throw new RuntimeException("Unable to find Bean with name " + name);
return null;
} // end method getBean( String, Class )
public ComponentWrapper getComponentWrapper() {
return new ComponentWrapper(component);
}
public PropertyValueWrapper getPropertyValueWrapper() {
return new PropertyValueWrapper(component, propertyFactory);
}
public ClassLoader getClassLoader() {
return implementation.getClassLoader();
}
public ApplicationContext getParentApplicationContext() {
return parentApplicationContext;
}
public void setParentApplicationContext(ApplicationContext parentApplicationContext) {
this.parentApplicationContext = parentApplicationContext;
}
}
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