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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.processor;
import java.net.URL;
import java.util.List;
import org.apache.tuscany.sca.contribution.processor.ProcessorContext;
import org.apache.tuscany.sca.implementation.spring.SpringBeanElement;
import org.apache.tuscany.sca.implementation.spring.SpringSCAPropertyElement;
import org.apache.tuscany.sca.implementation.spring.SpringSCAReferenceElement;
import org.apache.tuscany.sca.implementation.spring.SpringSCAServiceElement;
import org.apache.tuscany.sca.implementation.spring.context.SCAGenericApplicationContext;
import org.apache.tuscany.sca.implementation.spring.xml.SpringXMLBeanDefinitionLoader;
import org.springframework.beans.factory.xml.XmlBeanDefinitionReader;
import org.springframework.context.ApplicationContext;
import org.springframework.core.io.UrlResource;
/**
* A tie that allows Tuscany to call Spring library to load the application context for the purpose of introspection
*/
public class SpringXMLBeanDefinitionLoaderImpl implements SpringXMLBeanDefinitionLoader {
private static SCAGenericApplicationContext createApplicationContext(Object scaParentContext,
ClassLoader classLoader,
List<URL> resources) {
if (classLoader == null) {
classLoader = Thread.currentThread().getContextClassLoader();
}
SCAGenericApplicationContext appCtx =
new SCAGenericApplicationContext((ApplicationContext)scaParentContext, classLoader);
XmlBeanDefinitionReader xmlReader = new XmlBeanDefinitionReader(appCtx);
// REVIEW: [rfeng] How do we control the schema validation
xmlReader.setValidating(false);
for (URL resource : resources) {
xmlReader.loadBeanDefinitions(new UrlResource(resource));
}
return appCtx;
}
@Override
public Object load(List<URL> resources,
List<SpringSCAServiceElement> serviceElements,
List<SpringSCAReferenceElement> referenceElements,
List<SpringSCAPropertyElement> propertyElements,
List<SpringBeanElement> beanElements,
ProcessorContext context) {
// FIXME: [rfeng] We should try to avoid parsing the Spring xml twice for the deployment and runtime
SCAGenericApplicationContext applicationContext = createApplicationContext(null, null, resources);
serviceElements.addAll(applicationContext.getServiceElements());
referenceElements.addAll(applicationContext.getReferenceElements());
propertyElements.addAll(applicationContext.getPropertyElements());
beanElements.addAll(applicationContext.getBeanElements());
return applicationContext;
}
}
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