/*******************************************************************************
* Copyright (c) 2009, 2013 Spring IDE Developers
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Spring IDE Developers - initial API and implementation
*******************************************************************************/
package org.springframework.ide.eclipse.aop.core.internal.model.builder;
import java.util.List;
import java.util.Set;
import org.aopalliance.intercept.MethodInvocation;
import org.eclipse.core.resources.IFile;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMDocument;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode;
import org.springframework.ide.eclipse.aop.core.internal.model.JavaAdvisorDefinition;
import org.springframework.ide.eclipse.aop.core.logging.AopLog;
import org.springframework.ide.eclipse.aop.core.model.IAspectDefinition;
import org.springframework.ide.eclipse.aop.core.model.IAopReference.ADVICE_TYPE;
import org.springframework.ide.eclipse.aop.core.model.builder.IAspectDefinitionBuilder;
import org.springframework.ide.eclipse.aop.core.model.builder.IDocumentFactory;
import org.springframework.ide.eclipse.beans.core.BeansCorePlugin;
import org.springframework.ide.eclipse.beans.core.model.IBean;
import org.springframework.ide.eclipse.beans.core.model.IBeansConfig;
import org.springframework.ide.eclipse.core.java.IProjectClassLoaderSupport;
import org.springframework.util.StringUtils;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
/**
* {@link IAspectDefinitionBuilder} that takes a
* <pre>
* tx:annotation-config
* </pre>
* element and converts this into AOP references.
*
* @author Christian Dupuis
* @author Martin Lippert
* @since 2.2.7
*/
@SuppressWarnings("restriction")
public class TransactionalXmlAspectDefinitionBuilder extends AbstractAspectDefinitionBuilder implements
IAspectDefinitionBuilder {
private static final String TRANSACTION_INTERCEPTOR_CLASS = "org.springframework.transaction.interceptor.TransactionInterceptor";
private static final String ANNOTATION_EXPRESSION = "(@within(org.springframework.transaction.annotation.Transactional) || @annotation(org.springframework.transaction.annotation.Transactional)) && execution(* *..*(..))";
private static final String TX_NAMESPACE_URI = "http://www.springframework.org/schema/tx";
public void buildAspectDefinitions(List<IAspectDefinition> aspectInfos, IFile file,
IProjectClassLoaderSupport classLoaderSupport, IDocumentFactory factory) {
if (file.getFileExtension() != null && file.getFileExtension().equals("xml")) {
parseAnnotationDrivenElement(factory.createDocument(file), file, aspectInfos, classLoaderSupport);
}
}
private void addAspectDefinition(IAspectDefinition info, List<IAspectDefinition> aspectInfos) {
AopLog.log(AopLog.BUILDER_MESSAGES, info.toString());
aspectInfos.add(info);
}
private void parseAnnotationDrivenElement(final IDOMDocument document, IFile file,
final List<IAspectDefinition> aspectInfos, IProjectClassLoaderSupport classLoaderSupport) {
if (document == null || document.getStructuredDocument() == null) {
return;
}
NodeList list = document.getDocumentElement().getElementsByTagNameNS(TX_NAMESPACE_URI, "annotation-driven");
for (int i = 0; i < list.getLength(); i++) {
Node node = list.item(i);
String mode = getAttribute(node, "mode");
if (!StringUtils.hasText(mode) || "proxy".equals(mode)) {
String isProxyTargetClass = getAttribute(node, "proxy-target-class");
addAspectDefinition(createAnnotationInfo(file, node, isProxyTargetClass), aspectInfos);
}
}
}
private IAspectDefinition createAnnotationInfo(IFile file, Node node, String isProxyTargetClass) {
JavaAdvisorDefinition info = prepareJavaAdvisorDefinition(file, node, ANNOTATION_EXPRESSION);
info.setProxyTargetClass(("true".equalsIgnoreCase(isProxyTargetClass)));
return info;
}
private JavaAdvisorDefinition prepareJavaAdvisorDefinition(IFile file, Node aspectNode, String pointcutExpression) {
JavaAdvisorDefinition info = new JavaAdvisorDefinition();
extractLineNumbers(info, (IDOMNode) aspectNode);
info.setPointcutExpression(pointcutExpression);
info.setAspectClassName(TRANSACTION_INTERCEPTOR_CLASS);
IBeansConfig config = BeansCorePlugin.getModel().getConfig(file);
if (config != null) {
Set<IBean> beans = config.getBeans(TRANSACTION_INTERCEPTOR_CLASS);
if (beans.size() > 0) {
for (IBean bean : beans) {
if (info.getAspectStartLineNumber() <= bean.getElementStartLine() && info.getAspectEndLineNumber() >= bean.getElementEndLine()) {
info.setAspectName(bean.getElementName());
break;
}
}
}
}
info.setType(ADVICE_TYPE.AROUND);
info.setAdviceMethodName("invoke");
info.setAdviceMethodParameterTypes(new String[] { MethodInvocation.class.getName() });
info.setResource(file);
return info;
}
}