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Diffstat (limited to 'sandbox/event/modules/contribution-jee/src/main/java/org/apache/tuscany/sca/contribution/jee/EJBModuleProcessor.java')
| -rw-r--r-- | sandbox/event/modules/contribution-jee/src/main/java/org/apache/tuscany/sca/contribution/jee/EJBModuleProcessor.java | 406 |
1 files changed, 406 insertions, 0 deletions
diff --git a/sandbox/event/modules/contribution-jee/src/main/java/org/apache/tuscany/sca/contribution/jee/EJBModuleProcessor.java b/sandbox/event/modules/contribution-jee/src/main/java/org/apache/tuscany/sca/contribution/jee/EJBModuleProcessor.java new file mode 100644 index 0000000000..37ae53a38a --- /dev/null +++ b/sandbox/event/modules/contribution-jee/src/main/java/org/apache/tuscany/sca/contribution/jee/EJBModuleProcessor.java @@ -0,0 +1,406 @@ +/* + * 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.contribution.jee; + +import java.util.ArrayList; +import java.util.HashMap; +import java.util.List; +import java.util.Map; + +import org.apache.openejb.config.EjbModule; +import org.apache.openejb.jee.EjbJar; +import org.apache.openejb.jee.EjbRef; +import org.apache.openejb.jee.EjbRefType; +import org.apache.openejb.jee.EjbReference; +import org.apache.openejb.jee.EnterpriseBean; +import org.apache.openejb.jee.EnvEntry; +import org.apache.openejb.jee.MessageDrivenBean; +import org.apache.openejb.jee.SessionBean; +import org.apache.openejb.jee.SessionType; +import org.apache.tuscany.sca.assembly.Component; +import org.apache.tuscany.sca.assembly.ComponentProperty; +import org.apache.tuscany.sca.assembly.ComponentReference; +import org.apache.tuscany.sca.assembly.ComponentService; +import org.apache.tuscany.sca.assembly.ComponentType; +import org.apache.tuscany.sca.assembly.Composite; +import org.apache.tuscany.sca.assembly.CompositeReference; +import org.apache.tuscany.sca.assembly.CompositeService; +import org.apache.tuscany.sca.assembly.Property; +import org.apache.tuscany.sca.assembly.Reference; +import org.apache.tuscany.sca.assembly.Service; +import org.apache.tuscany.sca.contribution.DefaultModelFactoryExtensionPoint; +import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint; +import org.apache.tuscany.sca.contribution.service.ContributionException; +import org.apache.tuscany.sca.implementation.ejb.EJBImplementation; +import org.apache.tuscany.sca.implementation.ejb.EJBImplementationFactory; +import org.apache.tuscany.sca.interfacedef.InterfaceContract; +import org.apache.tuscany.sca.interfacedef.java.JavaInterface; + +/** + * @version $Rev$ $Date$ + */ +public class EJBModuleProcessor { + private EjbModule ejbModule; + private AssemblyHelper helper; + private Map<String, List<String>> intfToBean = new HashMap<String, List<String>>(); + private List<String> statefulBeans = new ArrayList<String>(); + + public EJBModuleProcessor(EjbModule ejbModule, AssemblyHelper helper) { + super(); + this.ejbModule = ejbModule; + this.helper = helper; + } + + public EJBModuleProcessor(EjbModule ejbModule) { + this.ejbModule = ejbModule; + this.helper = new AssemblyHelper(); + } + + public Map<String, ComponentType> getEjbComponentTypes() throws ContributionException { + intfToBean.clear(); + statefulBeans.clear(); + Map<String, ComponentType> ejbComponentTypes = new HashMap<String, ComponentType>(); + + EjbJar ejbJar = ejbModule.getEjbJar(); + if (!ejbJar.getVersion().startsWith("3")) { + // Not an EJB3 module + // TODO: should throw an exception + } + + Map<String, EnterpriseBean> beansMap = ejbJar.getEnterpriseBeansByEjbName(); + for (Map.Entry<String, EnterpriseBean> entry : beansMap.entrySet()) { + EnterpriseBean bean = entry.getValue(); + ComponentType ct = null; + if (bean instanceof SessionBean) { + SessionBean sbean = (SessionBean)bean; + ct = getEjbComponentType(sbean, ejbModule.getClassLoader()); + } else if (bean instanceof MessageDrivenBean) { + MessageDrivenBean mdbean = (MessageDrivenBean)bean; + ct = getEjbComponentType(mdbean, ejbModule.getClassLoader()); + } else { + continue; + } + if (ct != null) { + // Bean is an EJB3 bean + ejbComponentTypes.put(bean.getEjbName(), ct); + } + } + + // Adjust the references to STATEFUL beans + for (Map.Entry<String, ComponentType> entry : ejbComponentTypes.entrySet()) { + ComponentType ct = entry.getValue(); + for (Reference reference : ct.getReferences()) { + String intf = ((JavaInterface)reference.getInterfaceContract().getInterface()).getName(); + for (String bean : intfToBean.get(intf)) { + if (statefulBeans.contains(bean)) { + reference.getRequiredIntents().add(AssemblyHelper.CONVERSATIONAL_INTENT); + break; + } + } + } + } + + return ejbComponentTypes; + } + + public ComponentType getEjbAppComponentType() throws ContributionException { + ComponentType componentType = helper.createComponentType(); + + Map<String, ComponentType> ejbComponentTypes = getEjbComponentTypes(); + + for (Map.Entry<String, ComponentType> entry : ejbComponentTypes.entrySet()) { + String beanName = entry.getKey(); + ComponentType ejbComponentType = entry.getValue(); + + for (Service service : ejbComponentType.getServices()) { + Service service2 = helper.createComponentService(); + service2.setName(beanName + "_" + service.getName()); + service2.setInterfaceContract(service.getInterfaceContract()); + service2.getRequiredIntents().addAll(service.getRequiredIntents()); + + componentType.getServices().add(service2); + } + + for (Reference reference : ejbComponentType.getReferences()) { + Reference reference2 = helper.createComponentReference(); + reference2.setName(beanName + "_" + reference.getName()); + reference2.setInterfaceContract(reference.getInterfaceContract()); + reference2.getRequiredIntents().addAll(reference.getRequiredIntents()); + + componentType.getReferences().add(reference2); + } + } + + return componentType; + } + + public Composite getEjbAppComposite() throws ContributionException { + Composite composite = helper.createComposite(); + + Map<String, ComponentType> ejbComponentTypes = getEjbComponentTypes(); + + ModelFactoryExtensionPoint mfep = new DefaultModelFactoryExtensionPoint(); + EJBImplementationFactory eif = mfep.getFactory(EJBImplementationFactory.class); + + for (Map.Entry<String, ComponentType> entry : ejbComponentTypes.entrySet()) { + String ejbName = entry.getKey(); + ComponentType componentType = entry.getValue(); + + EJBImplementation impl = eif.createEJBImplementation(); + impl.setEJBLink(ejbModule.getModuleId() + "#" + ejbName); + // Create component + Component component = helper.createComponent(); + String componentName = ejbName; + component.setName(componentName); + component.setImplementation(impl); + + // Add services + for (Service service : componentType.getServices()) { + ComponentService componentService = helper.createComponentService(); + componentService.setService(service); + componentService.setInterfaceContract(service.getInterfaceContract()); + component.getServices().add(componentService); + } + + // Add references + for (Reference reference : componentType.getReferences()) { + ComponentReference componentReference = helper.createComponentReference(); + componentReference.setReference(reference); + componentReference.setInterfaceContract(reference.getInterfaceContract()); + componentReference.getRequiredIntents().addAll(reference.getRequiredIntents()); + component.getReferences().add(componentReference); + } + + // Add properties + for (Property property : componentType.getProperties()) { + ComponentProperty componentProperty = helper.createComponentProperty(); + componentProperty.setProperty(property); + component.getProperties().add(componentProperty); + } + + // Add component + composite.getComponents().add(component); + + // Add composite services + for (ComponentService service : component.getServices()) { + CompositeService compositeService = helper.createCompositeService(); + compositeService.setInterfaceContract(service.getInterfaceContract()); + compositeService.setPromotedComponent(component); + compositeService.setPromotedService(service); + composite.getServices().add(compositeService); + } + + // Add composite references + for (ComponentReference reference : component.getReferences()) { + CompositeReference compositeReference = helper.createCompositeReference(); + compositeReference.setInterfaceContract(reference.getInterfaceContract()); + compositeReference.getRequiredIntents().addAll(reference.getRequiredIntents()); + compositeReference.getPromotedReferences().add(reference); + composite.getReferences().add(compositeReference); + } + } + return composite; + } + + private ComponentType getEjbComponentType(SessionBean bean, ClassLoader cl) throws ContributionException { + if(bean.getBusinessRemote().size() == 0 && bean.getBusinessLocal().size() == 0) { + // Not an EJB3 Session bean + return null; + } + ComponentType componentType = helper.createComponentType(); + + boolean conversational = bean.getSessionType().equals(SessionType.STATEFUL); + if (conversational) { + statefulBeans.add(bean.getEjbName()); + } + + // Process Remote Business interfaces of the SessionBean + for (String intfName : bean.getBusinessRemote()) { + // This code is added to take care of EJB references to STATEFUL beans that are injected + // without a beanname in @EJB annotation + List<String> beansList = intfToBean.get(intfName); + if (beansList == null) { + beansList = new ArrayList<String>(); + intfToBean.put(intfName, beansList); + } + beansList.add(bean.getEjbName()); + + String serviceName = + intfName.lastIndexOf(".") != -1 ? intfName.substring(intfName.lastIndexOf(".") + 1) : intfName; + Service service = helper.createComponentService(); + service.setName(serviceName); + InterfaceContract ic = null; + try { + Class<?> clazz = cl.loadClass(intfName); + ic = helper.createInterfaceContract(clazz); + ic.getInterface().setConversational(conversational); + ic.getInterface().setRemotable(true); + } catch (Exception e) { + throw new ContributionException(e); + } + service.setInterfaceContract(ic); + if (conversational) { + service.getRequiredIntents().add(AssemblyHelper.CONVERSATIONAL_INTENT); + } + componentType.getServices().add(service); + } + + // Process Local Business interfaces of the SessionBean + for (String intfName : bean.getBusinessLocal()) { + String serviceName = + intfName.lastIndexOf(".") != -1 ? intfName.substring(intfName.lastIndexOf(".") + 1) : intfName; + Service service = helper.createComponentService(); + service.setName(serviceName); + InterfaceContract ic = null; + try { + Class<?> clazz = cl.loadClass(intfName); + ic = helper.createInterfaceContract(clazz); + ic.getInterface().setConversational(conversational); + } catch (Exception e) { + throw new ContributionException(e); + } + service.setInterfaceContract(ic); + if (conversational) { + service.getRequiredIntents().add(AssemblyHelper.CONVERSATIONAL_INTENT); + } + componentType.getServices().add(service); + } + + // Process Remote EJB References + for (Map.Entry<String, EjbRef> entry : bean.getEjbRefMap().entrySet()) { + EjbRef ejbRef = entry.getValue(); + if(ejbRef.getHome() != null) { + // References to only EJB3 beans need to be considered. + // Skip the current on as it is not a reference to an EJB3 bean. + continue; + } + if (ejbRef.getRefType().compareTo(EjbReference.Type.REMOTE) != 0) { + // Only Remote EJB references need to be considered. + // Skip the current one as it is not a remote reference. + continue; + } + //FIXME: ejbRef.getEjbRefType() is null sometimes. Need a different way to figure the type. + if(ejbRef.getEjbRefType() != null && ejbRef.getEjbRefType().compareTo(EjbRefType.SESSION) != 0) { + // Only references to Session beans need to be considered. + // Skip the current one as it is not a Session bean. + continue; + } + String referenceName = entry.getKey(); + referenceName = referenceName.replace("/", "_"); + Reference reference = helper.createComponentReference(); + reference.setName(referenceName); + InterfaceContract ic = null; + try { + Class<?> clazz = cl.loadClass(ejbRef.getInterface()); + ic = helper.createInterfaceContract(clazz); + } catch (Exception e) { + throw new ContributionException(e); + } + reference.setInterfaceContract(ic); + reference.getRequiredIntents().add(AssemblyHelper.EJB_INTENT); + componentType.getReferences().add(reference); + } + + // Process env-entries to compute properties + for (Map.Entry<String, EnvEntry> entry : bean.getEnvEntryMap().entrySet()) { + EnvEntry envEntry = entry.getValue(); + String type = envEntry.getEnvEntryType(); + if (!AssemblyHelper.ALLOWED_ENV_ENTRY_TYPES.containsKey(type)) { + continue; + } + String propertyName = entry.getKey(); + propertyName = propertyName.replace("/", "_"); + String value = envEntry.getEnvEntryValue(); + Property property = helper.createComponentProperty(); + property.setName(propertyName); + property.setXSDType(AssemblyHelper.ALLOWED_ENV_ENTRY_TYPES.get(type)); + property.setValue(value); + componentType.getProperties().add(property); + } + + return componentType; + } + + private ComponentType getEjbComponentType(MessageDrivenBean bean, ClassLoader cl) throws ContributionException { + try { + if(javax.ejb.MessageDrivenBean.class.isAssignableFrom(cl.loadClass(bean.getEjbClass()))) { + // Not an EJB3 bean + return null; + } + } catch (ClassNotFoundException ignored) { + // Should not happen + } + ComponentType componentType = helper.createComponentType(); + + // Process Remote EJB References + for (Map.Entry<String, EjbRef> entry : bean.getEjbRefMap().entrySet()) { + EjbRef ejbRef = entry.getValue(); + if(ejbRef.getHome() != null) { + // References to only EJB3 beans need to be considered. + // Skip the current on as it is not a reference to an EJB3 bean. + continue; + } + if (ejbRef.getRefType().compareTo(EjbReference.Type.REMOTE) != 0) { + // Only Remote EJB references need to be considered. + // Skip the current one as it is not a remote reference. + continue; + } + //FIXME: ejbRef.getEjbRefType() is null sometimes. Need a different way to figure the type. + if(ejbRef.getEjbRefType() != null && ejbRef.getEjbRefType().compareTo(EjbRefType.SESSION) != 0) { + // Only references to Session beans need to be considered. + // Skip the current one as it is not a Session bean. + continue; + } + String referenceName = entry.getKey(); + referenceName = referenceName.replace("/", "_"); + Reference reference = helper.createComponentReference(); + reference.setName(referenceName); + InterfaceContract ic = null; + try { + Class<?> clazz = cl.loadClass(ejbRef.getInterface()); + ic = helper.createInterfaceContract(clazz); + } catch (Exception e) { + throw new ContributionException(e); + } + reference.setInterfaceContract(ic); + reference.getRequiredIntents().add(AssemblyHelper.EJB_INTENT); + componentType.getReferences().add(reference); + } + + // Process env-entries to compute properties + for (Map.Entry<String, EnvEntry> entry : bean.getEnvEntryMap().entrySet()) { + EnvEntry envEntry = entry.getValue(); + String type = envEntry.getEnvEntryType(); + if (!AssemblyHelper.ALLOWED_ENV_ENTRY_TYPES.containsKey(type)) { + continue; + } + String propertyName = entry.getKey(); + propertyName = propertyName.replace("/", "_"); + String value = envEntry.getEnvEntryValue(); + Property property = helper.createComponentProperty(); + property.setName(propertyName); + property.setXSDType(AssemblyHelper.ALLOWED_ENV_ENTRY_TYPES.get(type)); + property.setValue(value); + componentType.getProperties().add(property); + } + + return componentType; + } +} |