Utilizando internamente a anotação @Priority para definir a prioridade

das estratégias de transação e controle de acesso

Utilizando internamente a anotação @Priority para definir a prioridade
das estratégias de transação e controle de acesso
Cleverson Sacramento
1 parent 33801f67
Showing 6 changed files with 65 additions and 8 deletions Show diff stats
impl/core/src/main/java/br/gov/frameworkdemoiselle/annotation/Priority.java
impl/core/src/main/java/br/gov/frameworkdemoiselle/internal/implementation/DefaultTransaction.java
impl/core/src/main/java/br/gov/frameworkdemoiselle/internal/implementation/SecurityContextImpl.java
impl/core/src/main/java/br/gov/frameworkdemoiselle/internal/implementation/StrategySelector.java
impl/core/src/main/java/br/gov/frameworkdemoiselle/internal/implementation/TransactionContextImpl.java
impl/extension/jpa/src/main/java/br/gov/frameworkdemoiselle/transaction/JPATransaction.java
@@ -37,6 +37,7 @@
 package br.gov.frameworkdemoiselle.annotation;
  
 import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.ElementType.TYPE;
 import static java.lang.annotation.RetentionPolicy.RUNTIME;
  
 import java.lang.annotation.Retention;
@@ -45,7 +46,7 @@ import java.lang.annotation.Target;
 /**
  * @author SERPRO
  */
-@Target(METHOD)
+@Target({ TYPE, METHOD })
 @Retention(RUNTIME)
 public @interface Priority {
  
@@ -36,7 +36,9 @@
  */
 package br.gov.frameworkdemoiselle.internal.implementation;
  
+import static br.gov.frameworkdemoiselle.internal.implementation.StrategySelector.CORE_PRIORITY;
 import br.gov.frameworkdemoiselle.DemoiselleException;
+import br.gov.frameworkdemoiselle.annotation.Priority;
 import br.gov.frameworkdemoiselle.internal.producer.ResourceBundleProducer;
 import br.gov.frameworkdemoiselle.transaction.Transaction;
 import br.gov.frameworkdemoiselle.transaction.Transactional;
@@ -48,6 +50,7 @@ import br.gov.frameworkdemoiselle.util.ResourceBundle;
  * @author SERPRO
  * @see Transaction
  */
+@Priority(CORE_PRIORITY)
 public class DefaultTransaction implements Transaction {
  
 	private static final long serialVersionUID = 1L;
@@ -38,6 +38,8 @@ package br.gov.frameworkdemoiselle.internal.implementation;
  
 import javax.inject.Named;
  
+import br.gov.frameworkdemoiselle.internal.bootstrap.AuthenticatorBootstrap;
+import br.gov.frameworkdemoiselle.internal.bootstrap.AuthorizerBootstrap;
 import br.gov.frameworkdemoiselle.internal.configuration.SecurityConfig;
 import br.gov.frameworkdemoiselle.internal.producer.ResourceBundleProducer;
 import br.gov.frameworkdemoiselle.security.AfterLoginSuccessful;
@@ -66,8 +68,8 @@ public class SecurityContextImpl implements SecurityContext {
  
 	private Authenticator getAuthenticator() {
 		if (authenticator == null) {
-			authenticator = StrategySelector.getReference("frameworkdemoiselle.security.authenticator.class",
-					Authenticator.class, DefaultAuthenticator.class);
+			AuthenticatorBootstrap bootstrap = Beans.getReference(AuthenticatorBootstrap.class);
+			authenticator = StrategySelector.getPriorityReference(bootstrap.getCache());
 		}
  
 		return authenticator;
@@ -75,8 +77,8 @@ public class SecurityContextImpl implements SecurityContext {
  
 	private Authorizer getAuthorizer() {
 		if (authorizer == null) {
-			authorizer = StrategySelector.getReference("frameworkdemoiselle.security.authorizer.class",
-					Authorizer.class, DefaultAuthorizer.class);
+			AuthorizerBootstrap bootstrap = Beans.getReference(AuthorizerBootstrap.class);
+			authorizer = StrategySelector.getPriorityReference(bootstrap.getCache());
 		}
  
 		return authorizer;
@@ -36,14 +36,18 @@
  */
 package br.gov.frameworkdemoiselle.internal.implementation;
  
+import static br.gov.frameworkdemoiselle.annotation.Priority.MIN_PRIORITY;
+
 import java.io.FileNotFoundException;
 import java.io.Serializable;
 import java.net.URL;
+import java.util.List;
 import java.util.Locale;
  
 import org.apache.commons.configuration.Configuration;
 import org.apache.commons.configuration.PropertiesConfiguration;
  
+import br.gov.frameworkdemoiselle.annotation.Priority;
 import br.gov.frameworkdemoiselle.configuration.ConfigurationException;
 import br.gov.frameworkdemoiselle.internal.configuration.ConfigurationLoader;
 import br.gov.frameworkdemoiselle.internal.producer.ResourceBundleProducer;
@@ -53,11 +57,43 @@ import br.gov.frameworkdemoiselle.util.Strings;
  
 public final class StrategySelector implements Serializable {
  
+	public static final int CORE_PRIORITY = MIN_PRIORITY;
+
+	public static final int EXTENSIONS_PRIORITY = CORE_PRIORITY + 100;
+
+	public static final int COMPONENTS_PRIORITY = EXTENSIONS_PRIORITY + 100;
+
 	private static final long serialVersionUID = 1L;
  
 	private StrategySelector() {
 	}
  
+	public static <T> T getPriorityReference(List<Class<T>> options) {
+		Class<T> selected = null;
+
+		for (Class<T> option : options) {
+			if (selected == null || getPriority(option) < getPriority(selected)) {
+				selected = option;
+			}
+
+			System.out.println(option.getCanonicalName());
+			System.out.println(selected.getCanonicalName());
+		}
+
+		return Beans.getReference(selected);
+	}
+
+	private static <T> int getPriority(Class<T> type) {
+		int result = Priority.MAX_PRIORITY;
+		Priority priority = type.getAnnotation(Priority.class);
+
+		if (priority != null) {
+			result = priority.value();
+		}
+
+		return result;
+	}
+
 	public static <T> T getReference(String configKey, Class<T> type, Class<? extends T> defaultType) {
 		Class<T> selectedType = loadSelected(configKey, type, defaultType);
 		return Beans.getReference(selectedType);
@@ -38,8 +38,10 @@ package br.gov.frameworkdemoiselle.internal.implementation;
  
 import javax.inject.Named;
  
+import br.gov.frameworkdemoiselle.internal.bootstrap.TransactionBootstrap;
 import br.gov.frameworkdemoiselle.transaction.Transaction;
 import br.gov.frameworkdemoiselle.transaction.TransactionContext;
+import br.gov.frameworkdemoiselle.util.Beans;
  
 /**
  * This is the default implementation of {@link TransactionContext} interface.
@@ -51,10 +53,19 @@ public class TransactionContextImpl implements TransactionContext {
  
 	private static final long serialVersionUID = 1L;
  
+	private Transaction transaction;
+
+	private Transaction getTransaction() {
+		if (this.transaction == null) {
+			TransactionBootstrap bootstrap = Beans.getReference(TransactionBootstrap.class);
+			this.transaction = StrategySelector.getPriorityReference(bootstrap.getCache());
+		}
+
+		return this.transaction;
+	}
+
 	@Override
 	public Transaction getCurrentTransaction() {
-		return StrategySelector.getReference("frameworkdemoiselle.transaction.class", Transaction.class,
-				DefaultTransaction.class);
+		return getTransaction();
 	}
-
 }
@@ -36,11 +36,14 @@
  */
 package br.gov.frameworkdemoiselle.transaction;
  
+import static br.gov.frameworkdemoiselle.internal.implementation.StrategySelector.EXTENSIONS_PRIORITY;
+
 import java.util.Collection;
  
 import javax.persistence.EntityManager;
 import javax.persistence.EntityTransaction;
  
+import br.gov.frameworkdemoiselle.annotation.Priority;
 import br.gov.frameworkdemoiselle.internal.producer.EntityManagerProducer;
 import br.gov.frameworkdemoiselle.util.Beans;
  
@@ -50,6 +53,7 @@ import br.gov.frameworkdemoiselle.util.Beans;
  * @author SERPRO
  * @see Transaction
  */
+@Priority(EXTENSIONS_PRIORITY)
 public class JPATransaction implements Transaction {
  
 	private static final long serialVersionUID = 1L;
...	...	@@ -37,6 +37,7 @@
37	37	package br.gov.frameworkdemoiselle.annotation;
38	38
39	39	import static java.lang.annotation.ElementType.METHOD;
	40	+import static java.lang.annotation.ElementType.TYPE;
40	41	import static java.lang.annotation.RetentionPolicy.RUNTIME;
41	42
42	43	import java.lang.annotation.Retention;
...	...	@@ -45,7 +46,7 @@ import java.lang.annotation.Target;
45	46	/**
46	47	* @author SERPRO
47	48	*/
48		-@Target(METHOD)
	49	+@Target({ TYPE, METHOD })
49	50	@Retention(RUNTIME)
50	51	public @interface Priority {
51	52
...	...
...	...	@@ -36,7 +36,9 @@
36	36	*/
37	37	package br.gov.frameworkdemoiselle.internal.implementation;
38	38
	39	+import static br.gov.frameworkdemoiselle.internal.implementation.StrategySelector.CORE_PRIORITY;
39	40	import br.gov.frameworkdemoiselle.DemoiselleException;
	41	+import br.gov.frameworkdemoiselle.annotation.Priority;
40	42	import br.gov.frameworkdemoiselle.internal.producer.ResourceBundleProducer;
41	43	import br.gov.frameworkdemoiselle.transaction.Transaction;
42	44	import br.gov.frameworkdemoiselle.transaction.Transactional;
...	...	@@ -48,6 +50,7 @@ import br.gov.frameworkdemoiselle.util.ResourceBundle;
48	50	* @author SERPRO
49	51	* @see Transaction
50	52	*/
	53	+@Priority(CORE_PRIORITY)
51	54	public class DefaultTransaction implements Transaction {
52	55
53	56	private static final long serialVersionUID = 1L;
...	...
...	...	@@ -38,6 +38,8 @@ package br.gov.frameworkdemoiselle.internal.implementation;
38	38
39	39	import javax.inject.Named;
40	40
	41	+import br.gov.frameworkdemoiselle.internal.bootstrap.AuthenticatorBootstrap;
	42	+import br.gov.frameworkdemoiselle.internal.bootstrap.AuthorizerBootstrap;
41	43	import br.gov.frameworkdemoiselle.internal.configuration.SecurityConfig;
42	44	import br.gov.frameworkdemoiselle.internal.producer.ResourceBundleProducer;
43	45	import br.gov.frameworkdemoiselle.security.AfterLoginSuccessful;
...	...	@@ -66,8 +68,8 @@ public class SecurityContextImpl implements SecurityContext {
66	68
67	69	private Authenticator getAuthenticator() {
68	70	if (authenticator == null) {
69		- authenticator = StrategySelector.getReference("frameworkdemoiselle.security.authenticator.class",
70		- Authenticator.class, DefaultAuthenticator.class);
	71	+ AuthenticatorBootstrap bootstrap = Beans.getReference(AuthenticatorBootstrap.class);
	72	+ authenticator = StrategySelector.getPriorityReference(bootstrap.getCache());
71	73	}
72	74
73	75	return authenticator;
...	...	@@ -75,8 +77,8 @@ public class SecurityContextImpl implements SecurityContext {
75	77
76	78	private Authorizer getAuthorizer() {
77	79	if (authorizer == null) {
78		- authorizer = StrategySelector.getReference("frameworkdemoiselle.security.authorizer.class",
79		- Authorizer.class, DefaultAuthorizer.class);
	80	+ AuthorizerBootstrap bootstrap = Beans.getReference(AuthorizerBootstrap.class);
	81	+ authorizer = StrategySelector.getPriorityReference(bootstrap.getCache());
80	82	}
81	83
82	84	return authorizer;
...	...
...	...	@@ -36,14 +36,18 @@
36	36	*/
37	37	package br.gov.frameworkdemoiselle.internal.implementation;
38	38
	39	+import static br.gov.frameworkdemoiselle.annotation.Priority.MIN_PRIORITY;
	40	+
39	41	import java.io.FileNotFoundException;
40	42	import java.io.Serializable;
41	43	import java.net.URL;
	44	+import java.util.List;
42	45	import java.util.Locale;
43	46
44	47	import org.apache.commons.configuration.Configuration;
45	48	import org.apache.commons.configuration.PropertiesConfiguration;
46	49
	50	+import br.gov.frameworkdemoiselle.annotation.Priority;
47	51	import br.gov.frameworkdemoiselle.configuration.ConfigurationException;
48	52	import br.gov.frameworkdemoiselle.internal.configuration.ConfigurationLoader;
49	53	import br.gov.frameworkdemoiselle.internal.producer.ResourceBundleProducer;
...	...	@@ -53,11 +57,43 @@ import br.gov.frameworkdemoiselle.util.Strings;
53	57
54	58	public final class StrategySelector implements Serializable {
55	59
	60	+ public static final int CORE_PRIORITY = MIN_PRIORITY;
	61	+
	62	+ public static final int EXTENSIONS_PRIORITY = CORE_PRIORITY + 100;
	63	+
	64	+ public static final int COMPONENTS_PRIORITY = EXTENSIONS_PRIORITY + 100;
	65	+
56	66	private static final long serialVersionUID = 1L;
57	67
58	68	private StrategySelector() {
59	69	}
60	70
	71	+ public static <T> T getPriorityReference(List<Class<T>> options) {
	72	+ Class<T> selected = null;
	73	+
	74	+ for (Class<T> option : options) {
	75	+ if (selected == null \|\| getPriority(option) < getPriority(selected)) {
	76	+ selected = option;
	77	+ }
	78	+
	79	+ System.out.println(option.getCanonicalName());
	80	+ System.out.println(selected.getCanonicalName());
	81	+ }
	82	+
	83	+ return Beans.getReference(selected);
	84	+ }
	85	+
	86	+ private static <T> int getPriority(Class<T> type) {
	87	+ int result = Priority.MAX_PRIORITY;
	88	+ Priority priority = type.getAnnotation(Priority.class);
	89	+
	90	+ if (priority != null) {
	91	+ result = priority.value();
	92	+ }
	93	+
	94	+ return result;
	95	+ }
	96	+
61	97	public static <T> T getReference(String configKey, Class<T> type, Class<? extends T> defaultType) {
62	98	Class<T> selectedType = loadSelected(configKey, type, defaultType);
63	99	return Beans.getReference(selectedType);
...	...
...	...	@@ -38,8 +38,10 @@ package br.gov.frameworkdemoiselle.internal.implementation;
38	38
39	39	import javax.inject.Named;
40	40
	41	+import br.gov.frameworkdemoiselle.internal.bootstrap.TransactionBootstrap;
41	42	import br.gov.frameworkdemoiselle.transaction.Transaction;
42	43	import br.gov.frameworkdemoiselle.transaction.TransactionContext;
	44	+import br.gov.frameworkdemoiselle.util.Beans;
43	45
44	46	/**
45	47	* This is the default implementation of {@link TransactionContext} interface.
...	...	@@ -51,10 +53,19 @@ public class TransactionContextImpl implements TransactionContext {
51	53
52	54	private static final long serialVersionUID = 1L;
53	55
	56	+ private Transaction transaction;
	57	+
	58	+ private Transaction getTransaction() {
	59	+ if (this.transaction == null) {
	60	+ TransactionBootstrap bootstrap = Beans.getReference(TransactionBootstrap.class);
	61	+ this.transaction = StrategySelector.getPriorityReference(bootstrap.getCache());
	62	+ }
	63	+
	64	+ return this.transaction;
	65	+ }
	66	+
54	67	@Override
55	68	public Transaction getCurrentTransaction() {
56		- return StrategySelector.getReference("frameworkdemoiselle.transaction.class", Transaction.class,
57		- DefaultTransaction.class);
	69	+ return getTransaction();
58	70	}
59		-
60	71	}
...	...
...	...	@@ -36,11 +36,14 @@
36	36	*/
37	37	package br.gov.frameworkdemoiselle.transaction;
38	38
	39	+import static br.gov.frameworkdemoiselle.internal.implementation.StrategySelector.EXTENSIONS_PRIORITY;
	40	+
39	41	import java.util.Collection;
40	42
41	43	import javax.persistence.EntityManager;
42	44	import javax.persistence.EntityTransaction;
43	45
	46	+import br.gov.frameworkdemoiselle.annotation.Priority;
44	47	import br.gov.frameworkdemoiselle.internal.producer.EntityManagerProducer;
45	48	import br.gov.frameworkdemoiselle.util.Beans;
46	49
...	...	@@ -50,6 +53,7 @@ import br.gov.frameworkdemoiselle.util.Beans;
50	53	* @author SERPRO
51	54	* @see Transaction
52	55	*/
	56	+@Priority(EXTENSIONS_PRIORITY)
53	57	public class JPATransaction implements Transaction {
54	58
55	59	private static final long serialVersionUID = 1L;
...	...