JpaBasedTest with CustomerDaoTest as example

cust-services/.externalToolBuilders/OpenJPAEnhancer.launch

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<launchConfiguration type="org.eclipse.ant.AntBuilderLaunchConfigurationType">
+	<stringAttribute key="org.eclipse.ant.ui.ATTR_ANT_AUTO_TARGETS" value="enhance,"/>
+	<stringAttribute key="org.eclipse.ant.ui.ATTR_ANT_MANUAL_TARGETS" value="enhance,"/>
+	<booleanAttribute key="org.eclipse.ant.ui.ATTR_TARGETS_UPDATED" value="true"/>
+	<booleanAttribute key="org.eclipse.ant.ui.DEFAULT_VM_INSTALL" value="false"/>
+	<booleanAttribute key="org.eclipse.debug.ui.ATTR_LAUNCH_IN_BACKGROUND" value="false"/>
+	<stringAttribute key="org.eclipse.jdt.launching.CLASSPATH_PROVIDER" value="org.eclipse.ant.ui.AntClasspathProvider"/>
+	<booleanAttribute key="org.eclipse.jdt.launching.DEFAULT_CLASSPATH" value="true"/>
+	<stringAttribute key="org.eclipse.jdt.launching.PROJECT_ATTR" value="cust-webapp"/>
+	<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LOCATION" value="${workspace_loc:/cust-webapp/builder_project/enhance.xml}"/>
+	<stringAttribute key="org.eclipse.ui.externaltools.ATTR_RUN_BUILD_KINDS" value="full,incremental,auto,"/>
+	<stringAttribute key="org.eclipse.ui.externaltools.ATTR_TOOL_ARGUMENTS" value="-Dopenjpa.libs -Dbuild.dir"/>
+	<booleanAttribute key="org.eclipse.ui.externaltools.ATTR_TRIGGERS_CONFIGURED" value="true"/>
+	<stringAttribute key="org.eclipse.ui.externaltools.ATTR_WORKING_DIRECTORY" value="${workspace_loc:/cust-webapp/builder_project}"/>
+</launchConfiguration>

cust-services/builder_project/enhance.xml

@@ -0,0 +1,24 @@
+<project name="jpa_enhance_builder">
+<path id="enhance.cp">
+<pathelement location="${basedir}${file.separator}${build.dir}"/>
+<fileset dir="${basedir}${file.separator}${openjpa.libs}">
+<include name="**/*.jar"/>
+</fileset>
+</path>
+<property name="cp" refid="enhance.cp"/>
+<target name="openjpa.libs.check" unless="openjpa.libs">
+<fail message="Please set -Dopenjpa.libs in your builder configuration!"/>
+</target>
+<target name="build.dir.check" unless="build.dir">
+<fail message="Please set -Dbuild.dir in your builder configuration!"/>
+</target>
+<target name="enhance" depends="openjpa.libs.check, build.dir.check">
+<echo message="${cp}"/>
+<taskdef name="openjpac" classname="org.apache.openjpa.ant.PCEnhancerTask">
+<classpath refid="enhance.cp"/>
+</taskdef>
+<openjpac>
+<classpath refid="enhance.cp"/>
+</openjpac>
+</target>
+</project>

cust-services/derby.log

@@ -0,0 +1,13 @@
+----------------------------------------------------------------
+Wed Apr 12 17:45:24 CEST 2017:
+Booting Derby version The Apache Software Foundation - Apache Derby - 10.13.1.1 - (1765088): instance a816c00e-015b-62d7-3c87-00000d85f220 
+on database directory /home/mi/Projekte/Hostsharing/hs.hsadmin.jee-all/cust-services/hsadmin-test-db/derbydb3 with class loader sun.misc.Launcher$AppClassLoader@372f7a8d 
+Loaded from file:/home/mi/.m2/repository/org/apache/derby/derby/10.13.1.1/derby-10.13.1.1.jar
+java.vendor=Oracle Corporation
+java.runtime.version=1.8.0_121-8u121-b13-0ubuntu1.16.04.2-b13
+user.dir=/home/mi/Projekte/Hostsharing/hs.hsadmin.jee-all/cust-services
+os.name=Linux
+os.arch=amd64
+os.version=4.4.0-72-generic
+derby.system.home=null
+Database Class Loader started - derby.database.classpath=''

cust-services/pom.xml

@@ -40,6 +40,40 @@
 		    <version>0.5</version>
 		    <scope>test</scope>
 		</dependency>
+		<dependency>
+		    <groupId>org.apache.openjpa</groupId>
+		    <artifactId>openjpa</artifactId>
+		    <version>2.4.2</version>
+		    <scope>test</scope>
+		</dependency>
+		<!--
+		<dependency>
+		    <groupId>org.hsqldb</groupId>
+		    <artifactId>hsqldb</artifactId>
+		    <version>2.3.4</version>
+		    <scope>test</scope>
+		</dependency>
+		-->
+		<dependency>
+		    <groupId>com.h2database</groupId>
+		    <artifactId>h2</artifactId>
+		    <version>1.4.194</version>
+		    <scope>test</scope>
+		</dependency>
+		<!--
+		<dependency>
+		    <groupId>org.apache.derby</groupId>
+		    <artifactId>derby</artifactId>
+		    <version>10.13.1.1</version>
+		    <scope>test</scope>
+		</dependency>
+		-->
+		<dependency>
+			<groupId>org.liquibase</groupId>
+			<artifactId>liquibase-core</artifactId>
+			<version>3.5.3</version>
+			<scope>test</scope>
+		</dependency>
 		<dependency>
 			<groupId>org.apache.xmlrpc</groupId>
 			<artifactId>xmlrpc-server</artifactId>
@@ -55,13 +89,16 @@
 	<build>
 		<plugins>
 			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-war-plugin</artifactId>
+				<version>3.0.0</version>
 				<configuration>
 					<archiveClasses>true</archiveClasses>
 				</configuration>
 			</plugin>
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
+				<version>3.0.2</version>
 				<artifactId>maven-jar-plugin</artifactId>
 				<configuration>
 					<excludes>
@@ -100,6 +137,27 @@
 					</execution>
 				</executions>
 			</plugin>
+			<plugin>
+				<groupId>org.codehaus.mojo</groupId>
+				<artifactId>exec-maven-plugin</artifactId>
+				<version>1.6.0</version>
+				<executions>
+					<execution>
+						<id>migratePostgresLiquibaseChangeLogToH2</id>
+						<phase>generate-sources</phase>
+						<goals>
+							<goal>exec</goal>
+						</goals>
+						<configuration>
+							<executable>${project.basedir}/scripts/migratePostgresLiquibaseChangeLogToH2.${script.extension}</executable>
+							<arguments>
+								<argument>${project.parent.basedir}/db-migration/src/main/resources/liquibase/db.changelog.xml</argument>
+								<argument>${project.build.directory}/classes/liquibase/db.changelog.xml</argument>
+							</arguments>
+						</configuration>
+					</execution>
+				</executions>
+			</plugin>
 			<plugin>
 				<groupId>org.apache.openejb.maven</groupId>
 				<artifactId>tomee-maven-plugin</artifactId>
@@ -115,6 +173,34 @@
 					</libs>
 				</configuration>
 			</plugin>
+		        <plugin>
+				<groupId>org.apache.openjpa</groupId>
+				<artifactId>openjpa-maven-plugin</artifactId>
+				<version>2.4.2</version>
+				<configuration>
+				    <includes>**/bo/*.class</includes>
+				    <addDefaultConstructor>true</addDefaultConstructor>               
+				    <enforcePropertyRestrictions>true</enforcePropertyRestrictions>
+				</configuration>
+				<executions>
+				    <execution>
+					<id>enhancer</id>
+					<phase>process-classes</phase>
+					<goals>
+					    <goal>enhance</goal>
+					</goals>
+				    </execution>
+				</executions>
+				<dependencies>
+				    <dependency>
+					<groupId>org.apache.openjpa</groupId>
+					<artifactId>openjpa</artifactId>
+					<!-- set the version to be the same as the level in your runtime -->
+					<version>2.4.2</version>
+					<scope>compile</scope>
+				    </dependency>
+				</dependencies>
+		        </plugin>
 		</plugins>
 	</build>
 </project>

cust-services/scripts/migratePostgresLiquibaseChangeLogToH2.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+mkdir -p $(dirname "$2")
+sed \
+	-e's/ deferrable="[a-z]*" initiallyDeferred="[a-z]*"//' \
+	-e's/ type="INET"/ type="VARCHAR(19)"/' \
+	-e'/generated.69/,+5d' \
+	<"$1" >"$2"
+
+#	-e'/changeset.* id="generated-69"/,+5d' \

cust-services/src/main/java/de/hsadmin/bo/customer/Customer.java

@@ -97,6 +97,9 @@ public class Customer implements Serializable {
 	@OneToMany(fetch = LAZY, cascade = ALL, mappedBy = "customer")
 	@OrderBy("name")
 	private Set<Pac> pacs;
+	
+	@Column(name = "shares_signed", columnDefinition = "integer")
+	private int sharesSigned;
 
 	public Customer() {
 		contacts = new HashSet<>();
@@ -252,5 +255,9 @@ public class Customer implements Serializable {
 	public void setSepaDirectDebits(final Set<SEPADirectDebit> sepaDirectDebits) {
 		this.sepaDirectDebits = sepaDirectDebits;
 	}
+
+	public void setSharesSigned(int sharesSigned) {
+		this.sharesSigned = sharesSigned;
+	}
 	
 }

cust-services/src/main/java/de/hsadmin/dao/customer/CustomerDao.java

@@ -16,6 +16,13 @@ public class CustomerDao {
 	@PersistenceContext(name="hsar")
 	private EntityManager entityManager;
 	
+	public CustomerDao() {
+	}
+
+	public CustomerDao(EntityManager em) {
+		this.entityManager = em;
+	}
+
 	public Customer findCustomerByName(final String customerName) throws UserException {
 		return findCustomerByNameImpl(customerName);	
 	}

cust-services/src/test/java/de/hsadmin/dao/customer/CustomerDaoTest.java

@@ -0,0 +1,36 @@
+package de.hsadmin.dao.customer;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import de.hsadmin.bo.customer.Customer;
+import de.hsadmin.common.error.UserException;
+import de.hsadmin.test.JpaBasedTest;
+
+public class CustomerDaoTest extends JpaBasedTest {
+	
+	private CustomerDao customerDao;
+	
+	@Before
+	public void init() {
+		customerDao = new CustomerDao(getEM());
+	}
+	
+	@Test
+	public void findCustomerByName() throws UserException {
+		Customer newCustomer = store(createNewCustomer(100001, "test"));
+		
+		Customer foundCustomer = customerDao.findCustomerByName(newCustomer.getName());
+		assertEquals(newCustomer.getId(), foundCustomer.getId());
+	}
+
+	private Customer createNewCustomer(int memberNo, String memberCode) {
+		Customer newCustomer = new Customer();
+		newCustomer.setMemberNo(memberNo);
+		newCustomer.setName(memberCode);
+		newCustomer.setSharesSigned(5);
+		return newCustomer;
+	}
+}

cust-services/src/test/java/de/hsadmin/test/JpaBasedTest.java

@@ -0,0 +1,77 @@
+package de.hsadmin.test;
+
+import javax.persistence.EntityManager;
+import javax.persistence.EntityManagerFactory;
+import javax.persistence.EntityTransaction;
+import javax.persistence.Persistence;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.BeforeClass;
+
+import liquibase.Liquibase;
+import liquibase.database.Database;
+import liquibase.database.DatabaseFactory;
+import liquibase.database.jvm.JdbcConnection;
+import liquibase.resource.ClassLoaderResourceAccessor;
+
+public abstract class JpaBasedTest {
+
+	private static final String UNIT_NAME = "HSADMIN_H2_TEST_DB";
+	
+	private static final EntityManagerFactory emf = Persistence.createEntityManagerFactory(UNIT_NAME);
+	
+	private EntityManager em;
+
+	@BeforeClass
+	public static void setupDatabase() throws Exception {
+		EntityManager em = emf.createEntityManager();
+		java.sql.Connection connection = em.unwrap(java.sql.Connection.class);
+		em.getTransaction().begin();
+		try {
+			Database database = DatabaseFactory.getInstance().findCorrectDatabaseImplementation(new JdbcConnection(connection));
+			Liquibase liquibase = new Liquibase("liquibase/db.changelog.xml", new ClassLoaderResourceAccessor(), database);
+			liquibase.update("test");
+		} finally {
+			em.getTransaction().commit();
+		}
+	}
+	
+	@Before
+	public void startTransaction() {
+		em = emf.createEntityManager();
+		em.getTransaction().begin();
+	}
+
+	@After
+	public void rollbacktransaction() {
+		// make sure constraint violations are found
+		em.flush();
+		
+		// but rollback the transaction
+		try {
+			EntityTransaction transaction = em.getTransaction();
+			if ( transaction.isActive() ) {
+				em.getTransaction().rollback();
+			}
+		} finally {
+			// and close the EntityManager
+			if (em.isOpen()) {
+				em.close();
+			}
+		}
+	}
+
+	public EntityManager getEM() {
+		return em;
+	}
+	
+
+	
+	public <T> T store(T newEntity) {
+		getEM().persist(newEntity);
+		getEM().flush();
+		getEM().clear();
+		return newEntity;
+	}
+}

cust-services/src/test/resources/META-INF/persistence.xml

@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
+        				http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
+	<persistence-unit name="HSADMIN_H2_TEST_DB" transaction-type="RESOURCE_LOCAL">
+		<provider>org.apache.openjpa.persistence.PersistenceProviderImpl</provider>
+		<!-- auto scanning fails if there are methods returning entities in the test :-( -->
+		<class>de.hsadmin.bo.customer.Customer</class>
+		<class>de.hsadmin.bo.customer.Contact</class>
+		<class>de.hsadmin.bo.customer.SEPADirectDebit</class>
+		<class>de.hsadmin.bo.pac.Pac</class>
+		<class>de.hsadmin.bo.pac.PacComponent</class>
+		<class>de.hsadmin.bo.pac.UnixUser</class>
+		<exclude-unlisted-classes>false</exclude-unlisted-classes>
+		<properties>
+		
+			<!--  HSQLDB
+			<property name="javax.persistence.jdbc.driver" value="org.hsqldb.jdbcDriver" />
+			<property name="javax.persistence.jdbc.url" value="jdbc:hsqldb:.hsadmin-test-db" />
+			<property name="javax.persistence.jdbc.user" value="sa" />
+			-->
+			
+			<!-- H2 -->
+			<property name="javax.persistence.jdbc.driver" value="org.h2.Driver" />
+			<property name="javax.persistence.jdbc.url" value="jdbc:h2:mem:.hsadmin-test-db;MODE=PostgreSQL;DB_CLOSE_DELAY=-1;MVCC=true" />
+			<property name="javax.persistence.jdbc.user" value="sa" />
+			
+			<!-- Derby
+			<property name="javax.persistence.jdbc.driver" value="org.apache.derby.jdbc.EmbeddedDriver" />
+			<property name="javax.persistence.jdbc.url" value="jdbc:derby:.hsadmin-test-db/derbydb3;create=true" /> -->
+
+			<!-- OpenJPA -->
+			<property name="openjpa.RuntimeUnenhancedClasses" value="supported" />
+		</properties>
+</persistence-unit>
+</persistence>

framework/pom.xml

@@ -66,6 +66,40 @@
             <artifactId>joda-time</artifactId>
             <version>2.9.9</version>
         </dependency>
+	<!--
+	<dependency>
+	    <groupId>org.hsqldb</groupId>
+	    <artifactId>hsqldb</artifactId>
+	    <version>2.3.4</version>
+	    <scope>test</scope>
+	</dependency>
+	-->
+	<dependency>
+	    <groupId>com.h2database</groupId>
+	    <artifactId>h2</artifactId>
+	    <version>1.4.194</version>
+	    <scope>test</scope>
+	</dependency>
+	<!--
+	<dependency>
+	    <groupId>org.apache.derby</groupId>
+	    <artifactId>derby</artifactId>
+	    <version>10.13.1.1</version>
+	    <scope>test</scope>
+	</dependency>
+	-->
+	<dependency>
+	    <groupId>org.apache.openjpa</groupId>
+	    <artifactId>openjpa</artifactId>
+	    <version>2.4.2</version>
+	    <scope>test</scope>
+	</dependency>
+	<dependency>
+		<groupId>org.liquibase</groupId>
+		<artifactId>liquibase-core</artifactId>
+		<version>3.5.3</version>
+		<scope>test</scope>
+	</dependency>
     </dependencies>
 </project>
 

pom.xml

@@ -36,6 +36,9 @@
 		  	<groupId>org.apache.maven.plugins</groupId>
 			<artifactId>maven-surefire-plugin</artifactId>
 			<version>2.19.1</version>
+			<configuration>
+				<argLine>-XX:+AlwaysLockClassLoader</argLine>
+			</configuration>
 		</plugin>
             </plugins>
         </pluginManagement>
@@ -55,4 +58,30 @@
             <scope>test</scope>
         </dependency>
     </dependencies>
+
+    <profiles>
+      <profile>
+        <id>Windows</id>
+        <activation>
+          <os>
+        <family>Windows</family>
+          </os>
+        </activation>
+        <properties>
+          <script.extension>bat</script.extension>
+        </properties>
+      </profile>
+      <profile>
+        <id>unix</id>
+        <activation>
+          <os>
+        <family>unix</family>
+          </os>
+        </activation>
+        <properties>
+          <script.extension>sh</script.extension>
+        </properties>
+      </profile>
+    </profiles>
+
 </project>