Merge pull request #185 from rhanus/master

added cdi/interceptors-prioriry

Author: arun-gupta

cdi/interceptors-priority/pom.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.javaee7.cdi</groupId>
+        <artifactId>cdi-samples</artifactId>
+        <version>1.0-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>        
+    </parent>
+
+    <artifactId>interceptors-prioriry</artifactId>
+</project>

cdi/interceptors-priority/src/main/java/org/javaee7/cdi/interceptors/priority/Greeting.java

@@ -0,0 +1,9 @@
+package org.javaee7.cdi.interceptors.priority;
+
+/**
+ * @author Radim Hanus
+ */
+public interface Greeting {
+    public String getGreet();
+    public void setGreet(String name);
+}

cdi/interceptors-priority/src/main/java/org/javaee7/cdi/interceptors/priority/HighPriorityInterceptor.java

@@ -0,0 +1,27 @@
+package org.javaee7.cdi.interceptors.priority;
+
+import javax.annotation.Priority;
+import javax.interceptor.AroundInvoke;
+import javax.interceptor.Interceptor;
+import javax.interceptor.InvocationContext;
+
+/**
+ * Interceptors with smaller priority values are called first.
+ *
+ * @author Radim Hanus
+ */
+@Interceptor
+@MyInterceptorBinding
+@Priority(Interceptor.Priority.APPLICATION + 100)
+public class HighPriorityInterceptor {
+	@AroundInvoke
+	public Object log(InvocationContext context) throws Exception {
+		Object[] parameters = context.getParameters();
+		if (parameters.length > 0 && parameters[0] instanceof String) {
+			String param = (String) parameters[0];
+			parameters[0] = "Hi " + param + " !";
+			context.setParameters(parameters);
+		}
+		return context.proceed();
+	}
+}

cdi/interceptors-priority/src/main/java/org/javaee7/cdi/interceptors/priority/LowPriorityInterceptor.java

@@ -0,0 +1,27 @@
+package org.javaee7.cdi.interceptors.priority;
+
+import javax.annotation.Priority;
+import javax.interceptor.AroundInvoke;
+import javax.interceptor.Interceptor;
+import javax.interceptor.InvocationContext;
+
+/**
+ * Interceptors with smaller priority values are called first.
+ *
+ * @author Radim Hanus
+ */
+@Interceptor
+@MyInterceptorBinding
+@Priority(Interceptor.Priority.APPLICATION + 200)
+public class LowPriorityInterceptor {
+	@AroundInvoke
+	public Object log(InvocationContext context) throws Exception {
+		Object[] parameters = context.getParameters();
+		if (parameters.length > 0 && parameters[0] instanceof String) {
+			String param = (String) parameters[0];
+			parameters[0] = param + " Nice to meet you.";
+			context.setParameters(parameters);
+		}
+		return context.proceed();
+	}
+}

cdi/interceptors-priority/src/main/java/org/javaee7/cdi/interceptors/priority/MyInterceptorBinding.java

@@ -0,0 +1,20 @@
+package org.javaee7.cdi.interceptors.priority;
+
+import javax.interceptor.InterceptorBinding;
+import java.lang.annotation.Inherited;
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.ElementType.TYPE;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+/**
+ * @author Arun Gupta
+ */
+@Inherited
+@InterceptorBinding
+@Retention(RUNTIME)
+@Target({METHOD, TYPE})
+public @interface MyInterceptorBinding {
+}

cdi/interceptors-priority/src/main/java/org/javaee7/cdi/interceptors/priority/SimpleGreeting.java

@@ -0,0 +1,17 @@
+package org.javaee7.cdi.interceptors.priority;
+
+/**
+ * @author Radim Hanus
+ */
+@MyInterceptorBinding
+public class SimpleGreeting implements Greeting {
+	private String greet;
+
+	public String getGreet() {
+		return greet;
+	}
+
+	public void setGreet(String greet) {
+		this.greet = greet;
+	}
+}

cdi/interceptors-priority/src/test/java/org/javaee7/cdi/interceptors/priority/GreetingTest.java

@@ -0,0 +1,43 @@
+package org.javaee7.cdi.interceptors.priority;
+
+import org.jboss.arquillian.container.test.api.Deployment;
+import org.jboss.arquillian.junit.Arquillian;
+import org.jboss.shrinkwrap.api.Archive;
+import org.jboss.shrinkwrap.api.ShrinkWrap;
+import org.jboss.shrinkwrap.api.spec.JavaArchive;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import javax.inject.Inject;
+
+import static org.hamcrest.CoreMatchers.*;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertThat;
+
+/**
+ * Note that beans.xml doesn't define any interceptor. Interceptors declared using interceptor bindings
+ * are enabled for the entire application and ordered using the Priority annotation.
+ *
+ * @author Radim Hanus
+ */
+@RunWith(Arquillian.class)
+public class GreetingTest {
+	@Deployment
+	public static Archive<?> deploy() {
+		return ShrinkWrap.create(JavaArchive.class)
+				.addClasses(Greeting.class, SimpleGreeting.class, MyInterceptorBinding.class, LowPriorityInterceptor.class, HighPriorityInterceptor.class)
+				.addAsManifestResource("beans.xml");
+	}
+
+	@Inject
+	Greeting bean;
+
+	@Test
+	public void test() throws Exception {
+		assertThat(bean, is(notNullValue()));
+		assertThat(bean, instanceOf(SimpleGreeting.class));
+
+		bean.setGreet("Arun");
+		assertEquals(bean.getGreet(), "Hi Arun ! Nice to meet you.");
+	}
+}

cdi/interceptors-priority/src/test/resources/arquillian.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<arquillian xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+			xmlns="http://jboss.org/schema/arquillian"
+			xsi:schemaLocation="http://jboss.org/schema/arquillian http://jboss.org/schema/arquillian/arquillian_1_0.xsd">
+
+	<defaultProtocol type="Servlet 3.0"/>
+
+	<container qualifier="test" default="true">
+		<configuration>
+			<property name="jbossHome">${serverRoot:target/wildfly-8.0.0.CR1}</property>
+			<property name="serverConfig">${serverProfile:standalone-full.xml}</property>
+		</configuration>
+	</container>
+
+</arquillian>

cdi/interceptors-priority/src/test/resources/beans.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<beans xmlns="http://xmlns.jcp.org/xml/ns/javaee"
+	   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	   xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/beans_1_1.xsd"
+	   bean-discovery-mode="all">
+
+</beans>

cdi/pom.xml

@@ -24,6 +24,7 @@
         <module>exclude-filter</module>
         <module>built-in</module>
         <module>interceptors</module>
+        <module>interceptors-prioriry</module>
         <module>nobeans-xml</module>
         <module>beansxml-noversion</module>
         <module>beanmanager</module>