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ahuber pushed a commit to branch dev/2.0.0-M2
in repository https://gitbox.apache.org/repos/asf/isis.git
commit f482514dd7e8573bf40b21108c926cbb657a4427
Author: Andi Huber <ahu...@apache.org>
AuthorDate: Sun Oct 29 09:29:38 2017 +0100
ISIS-1756 JEE 7+ Isis App life-cycling
---
.../webapp/jee/IsisDomainAppLifecycleBean.java | 61 +++++++++++
.../webapp/jee/PersistenceUnitNoopProvider.java | 112 +++++++++++++++++++++
.../src/main/resources/META-INF/persistence.xml | 8 ++
3 files changed, 181 insertions(+)
diff --git
a/core/runtime/src/main/java/org/apache/isis/core/webapp/jee/IsisDomainAppLifecycleBean.java
b/core/runtime/src/main/java/org/apache/isis/core/webapp/jee/IsisDomainAppLifecycleBean.java
new file mode 100644
index 0000000..07881e3
--- /dev/null
+++
b/core/runtime/src/main/java/org/apache/isis/core/webapp/jee/IsisDomainAppLifecycleBean.java
@@ -0,0 +1,61 @@
+/*
+ * 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.isis.core.webapp.jee;
+
+import javax.annotation.PostConstruct;
+import javax.annotation.PreDestroy;
+import javax.ejb.Singleton;
+import javax.ejb.Startup;
+import javax.enterprise.context.ApplicationScoped;
+
+import org.apache.isis.core.runtime.system.context.IsisContext;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+
+/**
+ *
+ * JEE singleton that hooks into an Isis-Application's life-cycle.
+ *
+ * <p>
+ * This CDI managed Bean ensures proper destruction of Isis's context.
+ * </p>
+ *
+ * @author ahu...@apache.org
+ *
+ */
+@Singleton
+@Startup
+@ApplicationScoped
+public class IsisDomainAppLifecycleBean {
+
+ private static final Logger log =
LoggerFactory.getLogger(IsisDomainAppLifecycleBean.class);
+
+ @PostConstruct
+ public void init() {
+ log.info("initializing ...");
+ }
+
+ @PreDestroy
+ public void destroy() {
+ IsisContext.destroy();
+ log.info("detroyed.");
+ }
+
+}
diff --git
a/core/runtime/src/main/java/org/apache/isis/core/webapp/jee/PersistenceUnitNoopProvider.java
b/core/runtime/src/main/java/org/apache/isis/core/webapp/jee/PersistenceUnitNoopProvider.java
new file mode 100644
index 0000000..3a9bac1
--- /dev/null
+++
b/core/runtime/src/main/java/org/apache/isis/core/webapp/jee/PersistenceUnitNoopProvider.java
@@ -0,0 +1,112 @@
+/*
+ * 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.isis.core.webapp.jee;
+
+import java.util.Map;
+
+import javax.persistence.Cache;
+import javax.persistence.EntityGraph;
+import javax.persistence.EntityManager;
+import javax.persistence.EntityManagerFactory;
+import javax.persistence.PersistenceUnitUtil;
+import javax.persistence.Query;
+import javax.persistence.SynchronizationType;
+import javax.persistence.criteria.CriteriaBuilder;
+import javax.persistence.metamodel.Metamodel;
+import javax.persistence.spi.PersistenceUnitInfo;
+import javax.persistence.spi.ProviderUtil;
+import javax.resource.NotSupportedException;
+
+/**
+ * Implements a PersistenceProvider that does nothing.
+ * <p>
+ * Note: the axon framework on JEE requires at least a dummy persistence unit.
+ * This requires that the {@code web.xml} includes a {@code
persistence-context-ref} entry as follows:
+ *
+ * <pre>{@code
+ * <persistence-context-ref>
+ *
<persistence-context-ref-name>org.axonframework.common.jpa.ContainerManagedEntityManagerProvider/entityManager</persistence-context-ref-name>
+ * <persistence-unit-name>noop</persistence-unit-name>
+ * </persistence-context-ref>
+ * }
+ * </pre>
+ * </p>
+ * <p>
+ * A {@code META_INF/persistence.xml} that declares the 'noop'
persistence-unit
+ * is bundled with this module.
+ * </p>
+ *
+ * @author ahu...@apache.org
+ *
+ */
+@SuppressWarnings("rawtypes")
+public class PersistenceUnitNoopProvider implements
javax.persistence.spi.PersistenceProvider{
+
+ @Override
+ public EntityManagerFactory createEntityManagerFactory(String emName,
Map map) {
+ return noopEntityManagerFactory();
+ }
+
+ @Override
+ public EntityManagerFactory
createContainerEntityManagerFactory(PersistenceUnitInfo info, Map map) {
+ return noopEntityManagerFactory();
+ }
+
+ @Override
+ public void generateSchema(PersistenceUnitInfo info, Map map) {
+ throw notSupported();
+ }
+
+ @Override
+ public boolean generateSchema(String persistenceUnitName, Map map) {
+ throw notSupported();
+ }
+
+ @Override
+ public ProviderUtil getProviderUtil() {
+ throw notSupported();
+ }
+
+ // -- HELPER
+
+ private static RuntimeException notSupported() {
+ return new RuntimeException(
+ new NotSupportedException("This
PersistenceProvider is just a dummy."));
+ }
+
+ private EntityManagerFactory noopEntityManagerFactory() {
+ return new EntityManagerFactory() {
+ @Override public EntityManager createEntityManager() {
return null; }
+ @Override public EntityManager createEntityManager(Map
map) { return null; }
+ @Override public EntityManager
createEntityManager(SynchronizationType synchronizationType) { return null;
}
+ @Override public EntityManager
createEntityManager(SynchronizationType synchronizationType, Map map) { return
null; }
+ @Override public CriteriaBuilder getCriteriaBuilder() {
return null; }
+ @Override public Metamodel getMetamodel() { return
null; }
+ @Override public boolean isOpen() { return false; }
+ @Override public void close() { }
+ @Override public Map<String, Object> getProperties() {
return null; }
+ @Override public Cache getCache() { return null; }
+ @Override public PersistenceUnitUtil
getPersistenceUnitUtil() { return null; }
+ @Override public void addNamedQuery(String name, Query
query) { }
+ @Override public <T> T unwrap(Class<T> cls) { return
null; }
+ @Override public <T> void addNamedEntityGraph(String
graphName, EntityGraph<T> entityGraph) { }
+ };
+ }
+
+}
diff --git a/core/runtime/src/main/resources/META-INF/persistence.xml
b/core/runtime/src/main/resources/META-INF/persistence.xml
new file mode 100644
index 0000000..356a2aa
--- /dev/null
+++ b/core/runtime/src/main/resources/META-INF/persistence.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence
http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd";>
+
+ <!-- declares a persistence unit that does nothing -->
+ <persistence-unit name="noop">
+
<provider>org.apache.isis.core.webapp.jee.PersistenceUnitNoopProvider</provider>
+ </persistence-unit>
+</persistence>
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