| /** |
| * 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.netbeans.modules.j2ee.persistence.spi.entitymanagergenerator; |
| |
| import com.sun.source.tree.AnnotationTree; |
| import com.sun.source.tree.ClassTree; |
| import com.sun.source.tree.ExpressionTree; |
| import com.sun.source.tree.MethodTree; |
| import com.sun.source.tree.ModifiersTree; |
| import com.sun.source.tree.Tree; |
| import com.sun.source.tree.TypeParameterTree; |
| import java.text.MessageFormat; |
| import java.util.Collections; |
| import javax.lang.model.element.ElementKind; |
| import javax.lang.model.element.Modifier; |
| import javax.lang.model.type.TypeKind; |
| import org.netbeans.api.java.source.Comment; |
| import org.openide.DialogDisplayer; |
| import org.openide.NotifyDescriptor; |
| import org.openide.util.NbBundle; |
| |
| /** |
| * Generates the code needed for invoking a container-managed <code>EntityManager</code> |
| * in classes that don't support dependency injection. |
| * |
| * @author Erno Mononen |
| */ |
| public final class ContainerManagedJTANonInjectableInWeb extends EntityManagerGenerationStrategySupport { |
| |
| public ClassTree generate() { |
| |
| if(!ElementKind.CLASS.equals(getClassElement().getKind())) |
| { |
| NotifyDescriptor nd = new NotifyDescriptor.Message(NbBundle.getMessage(ContainerManagedJTANonInjectableInWeb.class, "LBL_ClassOnly"), NotifyDescriptor.INFORMATION_MESSAGE); |
| DialogDisplayer.getDefault().notify(nd); |
| return getClassTree(); |
| } |
| else |
| { |
| FieldInfo em = getEntityManagerFieldInfo(); |
| |
| ModifiersTree methodModifiers = getTreeMaker().Modifiers( |
| getGenerationOptions().getModifiers(), |
| Collections.<AnnotationTree>emptyList() |
| ); |
| |
| MethodTree newMethod = getTreeMaker().Method( |
| methodModifiers, |
| computeMethodName(), |
| getTreeMaker().PrimitiveType(TypeKind.VOID), |
| Collections.<TypeParameterTree>emptyList(), |
| getParameterList(), |
| Collections.<ExpressionTree>emptyList(), |
| "{ " + |
| getMethodBody(em) |
| + "}", |
| null |
| ); |
| |
| //TODO: should be added automatically, but accessing web / ejb apis from this module |
| // would require API changes that might not be doable for 6.0 |
| String addToWebXmlComment = |
| " Add this to the deployment descriptor of this module (e.g. web.xml, ejb-jar.xml):\n" + |
| "<persistence-context-ref>\n" + |
| " <persistence-context-ref-name>persistence/LogicalName</persistence-context-ref-name>\n" + |
| " <persistence-unit-name>"+ getPersistenceUnitName() + "</persistence-unit-name>\n" + |
| "</persistence-context-ref>\n" + |
| "<resource-ref>\n" + |
| " <res-ref-name>UserTransaction</res-ref-name>\n" + |
| " <res-type>javax.transaction.UserTransaction</res-type>\n" + |
| " <res-auth>Container</res-auth>\n" + |
| "</resource-ref>\n"; |
| |
| MethodTree method = (MethodTree) importFQNs(newMethod); |
| getTreeMaker().addComment(method.getBody().getStatements().get(0), |
| Comment.create(Comment.Style.BLOCK, 0, 0, 4, addToWebXmlComment), true); |
| |
| return getTreeMaker().addClassMember(getClassTree(), method); |
| } |
| } |
| |
| private String getMethodBody(FieldInfo em){ |
| String emInit = em.isExisting() ? " {0}.joinTransaction();\n" :" javax.persistence.EntityManager {0} = (javax.persistence.EntityManager) ctx.lookup(\"java:comp/env/persistence/LogicalName\");\n"; |
| |
| String text = |
| "try '{'\n" + |
| " javax.naming.Context ctx = new javax.naming.InitialContext();\n" + |
| " javax.transaction.UserTransaction utx = (javax.transaction.UserTransaction) ctx.lookup(\"java:comp/env/UserTransaction\");\n" + |
| " utx.begin();\n" + |
| emInit + |
| generateCallLines(em.getName()) + |
| " utx.commit();\n" + |
| "} catch(Exception e) '{'\n" + |
| " java.util.logging.Logger.getLogger(getClass().getName()).log(java.util.logging.Level.SEVERE,\"exception caught\", e);\n" + |
| " throw new RuntimeException(e);\n" + |
| "}"; |
| return MessageFormat.format(text, em.getName()); |
| } |
| } |