From b485028f7b5c5b1270eefea6a72101d9b4164f28 Mon Sep 17 00:00:00 2001
From: Emerson Oliveira <emerson.sdoliveira@gmail.com>
Date: Mon, 23 Dec 2013 13:44:35 -0300
Subject: [PATCH] IN PROGRESS - issue FWK-166: Possibilidade do usuário injetar EntityManagerFactory em sua aplicação  

---
 impl/extension/jpa/src/main/java/br/gov/frameworkdemoiselle/internal/producer/EntityManagerProducer.java | 84 +++++++++++++++++-------------------------------------------------------------------
 1 file changed, 17 insertions(+), 67 deletions(-)

diff --git a/impl/extension/jpa/src/main/java/br/gov/frameworkdemoiselle/internal/producer/EntityManagerProducer.java b/impl/extension/jpa/src/main/java/br/gov/frameworkdemoiselle/internal/producer/EntityManagerProducer.java
index 9e6cd51..03f2b2a 100644
--- a/impl/extension/jpa/src/main/java/br/gov/frameworkdemoiselle/internal/producer/EntityManagerProducer.java
+++ b/impl/extension/jpa/src/main/java/br/gov/frameworkdemoiselle/internal/producer/EntityManagerProducer.java
@@ -38,7 +38,6 @@ package br.gov.frameworkdemoiselle.internal.producer;
 
 import java.io.Serializable;
 import java.util.Map;
-import java.util.Set;
 
 import javax.enterprise.context.ApplicationScoped;
 import javax.enterprise.inject.Default;
@@ -48,14 +47,9 @@ import javax.enterprise.inject.spi.InjectionPoint;
 import javax.inject.Inject;
 import javax.persistence.EntityManager;
 
-import org.slf4j.Logger;
-
-import br.gov.frameworkdemoiselle.DemoiselleException;
 import br.gov.frameworkdemoiselle.annotation.Name;
-import br.gov.frameworkdemoiselle.configuration.Configuration;
 import br.gov.frameworkdemoiselle.internal.configuration.EntityManagerConfig;
 import br.gov.frameworkdemoiselle.internal.proxy.EntityManagerProxy;
-import br.gov.frameworkdemoiselle.util.ResourceBundle;
 
 /**
  * <p>
@@ -64,26 +58,19 @@ import br.gov.frameworkdemoiselle.util.ResourceBundle;
  * </p>
  */
 @ApplicationScoped
-public class EntityManagerProducer implements Serializable{
+public class EntityManagerProducer implements Serializable {
 
 	private static final long serialVersionUID = 1L;
 
 	@Inject
-	private Logger logger;
-
-	@Inject
-	@Name("demoiselle-jpa-bundle")
-	private ResourceBundle bundle;
-	
-	@Inject
-	private EntityManagerFactoryProducer factory;
-	
-	@Inject
 	private Instance<EntityManagerStore> storeInstance;
-	
+
 	@Inject
 	private EntityManagerConfig configuration;
-	
+
+	@Inject
+	private Persistences persistenceUnitReader;
+
 	/**
 	 * <p>
 	 * Default EntityManager factory. Tries two strategies to produces EntityManager instances.
@@ -98,80 +85,43 @@ public class EntityManagerProducer implements Serializable{
 	 */
 	@Default
 	@Produces
-	protected EntityManager createDefault(InjectionPoint ip, EntityManagerConfig config) {
-		String persistenceUnit = getFromProperties(config);
+	protected EntityManager createDefault(EntityManagerConfig config) {
+		String persistenceUnit = persistenceUnitReader.getFromProperties(config);
 
 		if (persistenceUnit == null) {
-			persistenceUnit = getFromXML();
+			persistenceUnit = persistenceUnitReader.getFromXML();
 		}
 
 		return new EntityManagerProxy(persistenceUnit);
 	}
 
 	/**
-	 * 
 	 * <p>
-	 * Factory that reads the {@link AmbiguousQualifier} qualifier and creates an entity manager with
-	 * a matching persistence unit name. 
+	 * Factory that reads the {@link AmbiguousQualifier} qualifier and creates an entity manager with a matching
+	 * persistence unit name.
 	 * </p>
 	 * 
-	 * 
 	 * @param config
 	 *            Suplies informations about EntityManager defined in properties file.
 	 * @return Produced EntityManager.
 	 */
 	@Name("")
 	@Produces
-	protected EntityManager createNamed(InjectionPoint ip, EntityManagerConfig config) {
+	protected EntityManager createNamed(InjectionPoint ip) {
 		String persistenceUnit = ip.getAnnotated().getAnnotation(Name.class).value();
 		return new EntityManagerProxy(persistenceUnit);
 	}
 
-	/**
-	 * Tries to get persistence unit name from demoiselle.properties.
-	 * 
-	 * @param config
-	 *            Configuration containing persistence unit name.
-	 * @return Persistence unit name.
-	 */
-	private String getFromProperties(EntityManagerConfig config) {
-		String persistenceUnit = config.getDefaultPersistenceUnitName();
-
-		if (persistenceUnit != null) {
-			this.logger.debug(bundle.getString("getting-persistence-unit-from-properties",
-					Configuration.DEFAULT_RESOURCE));
-		}
-
-		return persistenceUnit;
-	}
-
-	/**
-	 * Uses persistence.xml to get informations about which persistence unit to use. Throws DemoiselleException if more
-	 * than one Persistence Unit is defined.
-	 * 
-	 * @return Persistence Unit AmbiguousQualifier
-	 */
-	private String getFromXML() {
-		Set<String> persistenceUnits = factory.getCache().keySet();
-
-		if (persistenceUnits.size() > 1) {
-			throw new DemoiselleException(bundle.getString("more-than-one-persistence-unit-defined",
-					Name.class.getSimpleName()));
-		} else {
-			return persistenceUnits.iterator().next();
-		}
-	}
-	
 	public EntityManager getEntityManager(String persistenceUnit) {
 		return getStore().getEntityManager(persistenceUnit);
 	}
-	
+
 	public Map<String, EntityManager> getCache() {
 		return getStore().getCache();
 	}
-	
-	private EntityManagerStore getStore(){
-		switch(configuration.getEntityManagerScope()){
+
+	private EntityManagerStore getStore() {
+		switch (configuration.getEntityManagerScope()) {
 			case REQUEST:
 				return storeInstance.select(RequestEntityManagerStore.class).get();
 			case APPLICATION:
@@ -188,5 +138,5 @@ public class EntityManagerProducer implements Serializable{
 				return storeInstance.select(RequestEntityManagerStore.class).get();
 		}
 	}
-	
+
 }
--
libgit2 0.21.2