サポートエンジニアが語る。weblogic server における cdi 概要・tips 紹介

WebLogic Server CDI Tips

NEC

PF

Agenda

1.

2. Contexts and Dependency Injection for the Java EE

platform (CDI)

3. CDI

4. WebLogic Server CDI

5. CDI AP

6.

7.

CDI

@Qualifier

@Alternative / @Priority

4 NEC , Ltd. 2016

NEC Oracle Fusion Middleware

2005 WebLogic Server WebLogic Integration / WebLogicWorkshop Java / JRockitSOA SuiteBPM / BPEL / ServiceBus Tuxedo SE

2. Contexts and Dependency Injection for the Java EE Platform (CDI)

6 NEC , Ltd. 2016

Contexts and Dependency Injection for the Java EE platform (CDI)

New

7 NEC , Ltd. 2016

HelloImpl-A HelloImpl-B new


New

public class Test {private Hello hello;

public void print() {hello = new HelloImpl-A();hello.sayHello();

}}

public class Test {private Hello hello;

public void print() {hello = new HelloImpl-B();hello.sayHello();

}}

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new @Inject

hello

New


public class Test {@Injectprivate Hello hello;

public void print() {hello.sayHello();

}}

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App

Variable

Proxy

Bean (Impl)Context

Proxy

A

PP

WorldImpl implements World

HelloImpl implements Hello

SampleImpl implements Sample

New

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CDI

P145 - @Alternative / @Priority

CDI Java EE 5 DI /

JSR-299

JSR-299: Contexts and Dependency Injection for the Java EE platformhttp://docs.jboss.org/cdi/spec/1.0/html/

New

http://docs.jboss.org/cdi/spec/1.0/html/

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CDI

-

HTTP


- Bean

@RequestScopedpublic class HelloImpl implements Hello, Serializable {

@Overridepublic String sayHello() {

return "Hello World";}

}

HTTP Bean

@SessionScopedpublic class HelloImpl implements Hello, Serializable {



}

Bean



}}

null

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P9 CDI

Bean

new

Context

ProxyBean Context

@Inject Bean (Impl) Proxy

Bean (Impl)Context

Proxy

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Bean

Bean (Instance)Context

Proxy (Instance)

12

9

6

3

CDI Container



}}

Proxy (Reference)

A

PP




}

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CDI GC


CDI Container

Context

12

9

6

3

Context

HTTP Session

12

9

6

3

Context

HTTP

12

9

6

3

Context

HTTP

12

9

6

3

Context

HTTP

12

9

6

3

Context

HTTP Session

12

9

6

3

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Bean

Interface

package weblogic.study;

public interface Hello {public String sayHello();

}

Servlet


import java.io.IOException;import javax.servlet.ServletException;import javax.servlet.annotation.WebServlet;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import javax.inject.Inject;

@WebServlet("/cdi.do")public class CDISampleServlet extends HttpServlet {

private static final long serialVersionUID = 1L;

@InjectHello hello;

protected void service(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {System.out.println( hello.sayHello() );

}}

Bean


import java.io.Serializable;import javax.enterprise.context.RequestScoped;




try { Thread.sleep( 10000 ); } catch ( InterruptedException e ) { }return "Hello World";

}}

10

-

16 NEC , Ltd. 2016


Servlet HelloImpl#sayHello() service()

weblogic.study.HelloImpl$Proxy$_$$_WeldClientProxy HelloImpl

"[ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)'"#22 daemon prio=2 os_prio=-2 tid=0x000000005aa45000 nid=0x2108 waiting on condition [0x000000005bc4e000]java.lang.Thread.State: TIMED_WAITING (sleeping)

at java.lang.Thread.sleep(Native Method)at weblogic.study.HelloImpl.sayHello(HelloImpl.java:17)at weblogic.study.HelloImpl$Proxy$_$$_WeldClientProxy.sayHello(Unknown Source)at weblogic.study.CDISampleServlet.service(CDISampleServlet.java:26)at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)

at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1651)at weblogic.servlet.provider.ContainerSupportProviderImpl$WlsRequestExecutor.run(ContainerSupportProviderImpl.java:270)at weblogic.invocation.ComponentInvocationContextManager._runAs(ComponentInvocationContextManager.java:348)at weblogic.invocation.ComponentInvocationContextManager.runAs(ComponentInvocationContextManager.java:333)at weblogic.work.LivePartitionUtility.doRunWorkUnderContext(LivePartitionUtility.java:54)at weblogic.work.PartitionUtility.runWorkUnderContext(PartitionUtility.java:41)at weblogic.work.SelfTuningWorkManagerImpl.runWorkUnderContext(SelfTuningWorkManagerImpl.java:640)at weblogic.work.ExecuteThread.execute(ExecuteThread.java:406)at weblogic.work.ExecuteThread.run(ExecuteThread.java:346)

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CDI Bean

CDI Bean

POJO (Plain Old Java Object) Java Beans CDI Bean

CDI Bean


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CDI

null

CDI Java

CDI CDI

CDI Bean

CDI Bean

CDI Bean

CDI

3. CDI

@Inject

@Named

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CDI

CDI

@Inject CDI

@Named

CDI Bean CDI Bean JSF EL

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CDI

Java EE 6 CDI CDI beans.xml XML Web WEB-INF

0 beans.xml WEB-INF CDI

Java EE 7 CDI beans.xml beans.xml CDI

beans.xml

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CDI

@Inject

@Inject CDI

CDI

import javax.inject.Inject;



}}

public interface Hello {public void sayHello();

}

public class HelloImpl implements Hello {@Overridepublic void sayHello() {

System.out.println( "Hello World" );}

}

@Inject javax.inject.Inject

@Inject

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CDI

@Inject

@Inject

CDI

CDI

@InjectHello hello; WorldImpl implements World


SampleImpl implements Sample

Hello

Bean (Impl)Context

Proxy

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CDI

@Inject

@InjectHello hello;

HelloImpl2 implements Hello


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CDI

@Inject

@Qualifier

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CDI

@Named

CDI Bean

CDI CDI Bean

CDI Bean JSF EL CDI Bean

JSF

CDI Bean @Named EL

CDI Bean


import java.io.Serializable;import javax.enterprise.context.SessionScoped;import javax.inject.Inject;import javax.inject.Named;

@SessionScoped@Namedpublic class Test implements Serializable {


@InjectHello hello;

public String getHello() {

return hello.sayHello();}

}

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CDI

@Named

@Named CDI Bean EL Bean

Named Bean

@Named

Bean JSF Bean test

EL

@Named( Bean )

Bean JSF Bean Test

EL

@Namedpublic class Test implements Serializable {

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CDI

@Named

EL CDI Bean getter

EL getter

CDI Bean





@InjectHello hello;

public String getHello() {

return hello.sayHello();}

}

JSF

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CDI

5

@RequestScoped / @SessionScoped / @ApplicationScoped@ConversationScoped / @Dependent

@Qualifier


@Alternative @Priority

30 NEC , Ltd. 2016

CDI

@Inject

CDI

@Named

CDI Bean CDI Bean JSF EL

4. WebLogic Server CDI

JBoss Weld

Jersey

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WebLogic Server CDI

JBoss Weld

WebLogic Server CDI JBoss Weld

JBoss Weld

Red Hat Open Source Software

CDI for Java EE Platform

WebLogic Server GlassFish JBoss Web

Weld - CDI Reference Implementation

http://weld.cdi-spec.org/

http://weld.cdi-spec.org/

33 NEC , Ltd. 2016

JBoss Weld

WebLogic Server JBoss Weld

JBoss Weld latest stable release 2017/1/17 2.4.1.Final

WebLogic Server Version Java EE Version JBoss Weld Version

12.1.1.0.0 Java EE 6 1.1.Final

12.1.2.0.0 Java EE 6

1.1.Final

12.1.3.0.0 Java EE 6

1.1.Final

12.2.1.0.0 Java EE 7 2.2.13.Final

12.2.1.1.0 Java EE 7 2.3.2.Final

12.2.1.2.0 Java EE 7 2.3.2.Final

WebLogic Server CDI

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WebLogic Server CDI

JBoss Weld

.jar

12.2.1.0.0

WebLogic Server Version Library Path

12.1.1.0.0${MW_HOME}/modules/org.jboss.weld.api_1.0.0.0_1-1-3.SP1.jar${MW_HOME}/modules/org.jboss.weld.core_1.0.0.0_1-1-3.SP1.jar${MW_HOME}/modules/org.jboss.weld.spi_1.0.0.0_1-1-3.SP1.jar

12.1.2.0.0 ${WL_HOME}/modules/features/weblogic.server.merged.jar

12.1.3.0.0 ${WL_HOME}/modules/features/weblogic.server.merged.jar

12.2.1.0.0${WL_HOME}/modules/org.jboss.weld.weld-api.jar${WL_HOME}/modules/org.jboss.weld.weld-core.jar${WL_HOME}/modules/org.jboss.weld.weld-spi.jar



35 NEC , Ltd. 2016

WebLogic Server CDI

Jersey

WebLogic Server JAX-RS Jersey CDI

Jersey

Open Source Software

RESTful Web Service JAX-RS

Jersey

https://jersey.java.net/

https://jersey.java.net/

36 NEC , Ltd. 2016

Jersey

WebLogic Server Jersey

Jersey latest stable release 2017/1/17 2.25

WebLogic Server 12.1.3.0.0 Jersey

Oracle WebLogic Server 12.1.3 RESTful Web 12c (12.1.3)

> [2 Jersey 2.5.1 (JAX-RS 2.0)]

https://docs.oracle.com/cd/E57014_01/wls/RESTF/use-jersey20-ri.htm

Oracle WebLogic Server RESTful Web 12c (12.2.1)

> [Jersey 1.18 (JAX-RS 1.1 RI)RESTful Web]

http://docs.oracle.com/cd/E72987_01/wls/RESTF/jersey-back-comp.htm

WebLogic Server Version Java EE Version Jersey Version

12.1.1.0.0 Java EE 6 1.9

12.1.2.0.0 Java EE 6 1.17.1

12.1.3.0.0 Java EE 6 1.18.1

12.2.1.0.0 Java EE 7 2.21.1

12.2.1.1.0 Java EE 7 2.22.1

12.2.1.2.0 Java EE 7 2.22.1

WebLogic Server CDI

https://docs.oracle.com/cd/E57014_01/wls/RESTF/use-jersey20-ri.htmhttp://docs.oracle.com/cd/E72987_01/wls/RESTF/jersey-back-comp.htm

37 NEC , Ltd. 2016

WebLogic Server CDI

Jersey

.jar

WebLogic Server Version Library Path

12.1.1.0.0${MW_HOME}/modules/com.sun.jersey.core_1.1.0.0_1-9.jar${MW_HOME}/modules/com.sun.jersey.server_1.1.0.0_1-9.jar

12.1.2.0.0

${ORACLE_HOME}/oracle_common/modules/jersey-core-1.17.1.jar${ORACLE_HOME}/oracle_common/modules/jersey-server-1.17.1.jar${ORACLE_HOME}/oracle_common/modules/jersey-servlet-1.17.1.jar

12.1.3.0.0

${ORACLE_HOME}/oracle_common/modules/jersey-core-1.18.jar${ORACLE_HOME}/oracle_common/modules/jersey-server-1.18.jar${ORACLE_HOME}/oracle_common/modules/jersey-servlet-1.18.jar

12.2.1.0.0

${ORACLE_HOME}/oracle_common/modules/org.glassfish.jersey.core.jersey-common.jar${ORACLE_HOME}/oracle_common/modules/org.glassfish.jersey.ext.cdi.jersey-cdi1x.jar${ORACLE_HOME}/oracle_common/modules/org.glassfish.jersey.ext.cdi.jersey-cdi1x-servlet.jar${ORACLE_HOME}/oracle_common/modules/org.glassfish.jersey.ext.cdi.jersey-cdi1x-transaction.jar

12.2.1.1.0 12.2.1.0.0

12.2.1.2.0 12.2.1.0.0

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WebLogic Server CDI

Weld / Jersey CDI

jBatch (Batch Applications for the Java Platform)

IBM jBatch CDI

5. CDI AP

@PostConstruct

Weld

Weld .class

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CDI AP

@PostConstruct

CDI Bean CDI Bean

CDI

CDI

void ()

void init() / void initialize()

@PostConstruct CDI Bean

@PreDestroy CDI Bean

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CDI AP

@PostConstruct

CDI Bean

@PreDestroy

CDI Bean

CDI Bean

CDI Bean

@PostConstruct

@SessionScoped / @ConversationScoped CDI Bean

@PostConstruct

@PreDestroy CDI Bean

42 NEC , Ltd. 2016

CDI AP

@PostConstruct

@PostConstruct CDI Bean Logger CDI Bean

HelloImpl


import javax.annotation.PostConstruct;

public class HelloImpl implements Hello {

@PostConstructpublic void init() {

System.out.println( "HelloImpl was injected." );}


// TODO Auto-generated method stubreturn "Hello World.";

}}

HelloImpl was injected.

43 NEC , Ltd. 2016

CDI AP

Weld

WebLogic Server Weld Weld

Weld

How do I enable debug logging for Weld in a specific container?http://weld.cdi-spec.org/documentation/#7

Weld Web WebLogic Server

http://weld.cdi-spec.org/documentation/#7

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CDI AP

Weld

WebLogic Server 12.1.3.0.0 []

[] [] []

CDI Weld

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CDI AP

Weld

[] []

[]

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CDI AP

Weld

[] org.jboss.weld=Trace []

WebLogic Server 12.2.1.2.0

WebLogic Server 12.1.3.0.0 [Platform Logger Levels]

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CDI AP

Weld

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CDI AP

Weld

org.jboss.weld=Trace CDI 600KB

WebLogic Server 12.2.1.2.0 STATE_PREPARED STATE_ACTIVE 1400 700KB

CDI

WebLogic Server 12.2.1.2.0 40 9KB

49 NEC , Ltd. 2016

CDI AP

Weld

Weld Weld org.jboss.weld.logging.Category.java Weld 17

Trace

Category

org.jboss.weld.Bootstrap

WebLogic Server CDI STATE_PREPARED CDI

Weld Weld / Jersey IBM jBatch CDI

org.jboss.weld.Version

CDI WebLogic Server Weld

WebLogic Server ----- -----

org.jboss.weld.Utilities

CDI CDI

50 NEC , Ltd. 2016

CDI AP

Weld

Category

org.jboss.weld.Bean

WebLogic Server Weld

-----org.jboss.weldx.transaction.UserTransaction$XXXXXXXX$Proxy$_$$_Weld$Proxy$org.jboss.weld.security.Principal$XXXXXXXX$Proxy$_$$_Weld$Proxy$org.jboss.weldx.enterprise.inject.Instance$Provider$XXXXXXXX$Proxy$_$$_Weld$Proxy$

XXXXXXXX -----

Weld Jersey / jBatch

CDI CDI Bean

-----weblogic.study.BImpl$Proxy$_$$_WeldClientProxy-----

org.jboss.weld.Servletweld-servlet ServletContainerInitializer HTTP

org.jboss.weld.Reflection

CDI WELD-000620

51 NEC , Ltd. 2016

CDI AP

Weld

Category

org.jboss.weld.JSF

@Named EL CDI Bean

org.jboss.weld.Event

@Observes CDI

org.jboss.weld.Conversation@ConversationScoped CDI ID

org.jboss.weld.Context

CDI Bean BeanStore BeanStore

RequestScoped CDI ThreadLocal -----State thread-local removed: org.jboss.weld.context.http.LazyHttpConversationContextImpl@7e4f3b94State thread-local removed: org.jboss.weld.context.http.HttpRequestContextImpl@34de8782State thread-local removed: org.jboss.weld.context.http.HttpSessionContextImpl@414b9c5e-----

52 NEC , Ltd. 2016

CDI AP

Weld

Category

org.jboss.weld.El

JSF EL

-----WELD-001002: Looking for EL property a> WELD-001003: EL property a resolved to weblogic.study.A@272bffb7> -----

org.jboss.weld.Resolution

CDI -----Weld

> [19.1.6. Bounding the cache size for resolved injection points]https://docs.jboss.org/weld/reference/latest/en-US/html/configure.html#_bounding_the_cache_size_for_resolved_injection_points

Weld caches already resolved injection points in order to resolve them faster in the future.A separate type-safe resolver exists for beans, decorators, disposers, interceptors and observers.Each of them stores resolved injection points in its cache, which maximum size is bounded by a default value (common to all of them).-----

https://docs.jboss.org/weld/reference/latest/en-US/html/configure.html#_bounding_the_cache_size_for_resolved_injection_points

53 NEC , Ltd. 2016

CDI AP

Weld

Category

org.jboss.weld.BeanManager

javax.enterprise.inject.spi.BeanManager CDI

org.jboss.weld.Validator

javax.validation.Validator CDI

org.jboss.weld.Interceptor

org.jboss.weld.Serialization

CDI Bean @SessionScoped @ConversationScoped CDI

org.jboss.weld.Configuration

WebLogic Server CDI STATE_PREPARED

54 NEC , Ltd. 2016

CDI AP

Weld

org.jboss.weld.Bean / org.jboss.weld.Context

org.jboss.weld.El / org.jboss.weld.Conversation / org.jboss.weld.Interceptor

WebLogic Server JSF Mojarra

55 NEC , Ltd. 2016

CDI AP

Weld .class

Weld

56 NEC , Ltd. 2016

CDI AP

Weld .class

.class CLASSPATH

WebLogic Server 12.2.1.2.0 Weld 2.3.2.Final

Index of /groups/public/org/jboss/weld/weld-core/2.3.2.Final

https://repository.jboss.org/nexus/content/groups/public/org/jboss/weld/weld-core/2.3.2.Final/

https://repository.jboss.org/nexus/content/groups/public/org/jboss/weld/weld-core/2.3.2.Final/

57 NEC , Ltd. 2016

Weld .class

Weld 2.3.2.Final

Weld: Download

http://weld.cdi-spec.org/download/

CDI AP

http://weld.cdi-spec.org/download/

58 NEC , Ltd. 2016

CDI AP

Weld .class

.class

org.jboss.weld.Bean / org.jboss.weld.Context CDI

59 NEC , Ltd. 2016

CDI AP

Weld .class

org.jboss.weld.bean.proxy.ProxyFactory

ProxyFactory ProxyFactory#create()

ProxyFactory#create()

/*** Method to create a new proxy that wraps the bean instance.** @param beanInstance the bean instance* @return a new proxy object*/

public T create(BeanInstance beanInstance) {final T proxy = (System.getSecurityManager() == null) ? run() : AccessController.doPrivileged(this);((ProxyObject) proxy).setHandler(new ProxyMethodHandler(contextId, beanInstance, bean));return proxy;

}

60 NEC , Ltd. 2016

CDI AP

Weld .class

ProxyFactory#create() ProxyFactory#createProxyClass()

ProxyFactory#createProxyClass()

private Class createProxyClass(String proxyClassName) throws Exception {ArraySet>(

LifecycleMixin.class, TargetInstanceProxy.class, ProxyObject.class);addAdditionalInterfaces(specialInterfaces);// Remove special interfaces from main set (deserialization scenario)additionalInterfaces.removeAll(specialInterfaces);

ClassFile proxyClassType = null;final int accessFlags = AccessFlag.of(AccessFlag.PUBLIC, AccessFlag.SUPER, AccessFlag.SYNTHETIC);if (getBeanType().isInterface()) {

proxyClassType = newClassFile(proxyClassName, accessFlags, Object.class.getName());proxyClassType.addInterface(getBeanType().getName());

} else {proxyClassType = newClassFile(proxyClassName, accessFlags, getBeanType().getName());

}// Add interfaces which require method generationfor (Class clazz : additionalInterfaces) {

proxyClassType.addInterface(clazz.getName());}List initialValueBytecode = new ArrayList();

61 NEC , Ltd. 2016

CDI AP

Weld .class

ClassFile org.jboss.classfilewriter

org.jboss.classfilewriter

jbossas/jboss-classfilewriter

https://github.com/jbossas/jboss-classfilewriter/blob/master/src/main/java/org/jboss/classfilewriter/ClassFile.java

proxyClassType

ProxyFactory import

import org.jboss.classfilewriter.AccessFlag;import org.jboss.classfilewriter.ClassFile;import org.jboss.classfilewriter.ClassMethod;import org.jboss.classfilewriter.DuplicateMemberException;import org.jboss.classfilewriter.code.BranchEnd;import org.jboss.classfilewriter.code.CodeAttribute;import org.jboss.classfilewriter.util.Boxing;import org.jboss.classfilewriter.util.DescriptorUtils;

https://github.com/jbossas/jboss-classfilewriter/blob/master/src/main/java/org/jboss/classfilewriter/ClassFile.java

62 NEC , Ltd. 2016

CDI AP

Weld .class

ProxyFactory#createProxyClass() proxyClassType return


// Added by iootani fromimport org.jboss.classfilewriter.ClassField;import org.jboss.classfilewriter.ClassMethod;// Added by iootani to

private Class createProxyClass(String proxyClassName) throws Exception {ArraySet>(

LifecycleMixin.class, TargetInstanceProxy.class, ProxyObject.class);addAdditionalInterfaces(specialInterfaces);// Remove special interfaces from main set (deserialization scenario)additionalInterfaces.removeAll(specialInterfaces);

ClassFile

63 NEC , Ltd. 2016

CDI AP

Weld .class


ClassFile proxyClassType = null;final int accessFlags = AccessFlag.of(AccessFlag.PUBLIC, AccessFlag.SUPER, AccessFlag.SYNTHETIC);if (getBeanType().isInterface()) {

proxyClassType = newClassFile(proxyClassName, accessFlags, Object.class.getName());proxyClassType.addInterface(getBeanType().getName());

} else {proxyClassType = newClassFile(proxyClassName, accessFlags, getBeanType().getName());

}

// Added by iootani fromSystem.out.println( "********************************************************************** " );System.out.println( "ProxyClassName : " + proxyClassType.getClass().getCanonicalName() );for ( ClassField cf : proxyClassType.getFields() ) {

System.out.println( "ClassField : " + cf.getName() );}for ( ClassMethod cm : proxyClassType.getMethods() ) {

System.out.println( "ClassMethod : " + cm.getName() );}System.out.println( "********************************************************************** " );// Added by iootani to

return proxyClass;}

ClassFile

64 NEC , Ltd. 2016

CDI AP

Weld .class

Eclipse NetBeans IDE

Windows

cd /d D:osslib

set JAVA_HOME=D:OracleJavaOraclex86-641.7.0jdk1.7.0_121

set CLASSPATH=.set CLASSPATH=%CLASSPATH%;D:osslibweld-2.3.2.Finalartifactscdicdi-api.jarset CLASSPATH=%CLASSPATH%;D:osslibweld-2.3.2.Finalartifactsweldweld-api.jarset CLASSPATH=%CLASSPATH%;D:osslibweld-2.3.2.Finalartifactsweldweld-core-impl.jarset CLASSPATH=%CLASSPATH%;D:osslibweld-2.3.2.Finalartifactsweldweld-core.jarset CLASSPATH=%CLASSPATH%;D:osslibweld-2.3.2.Finalartifactsweldweld-environment-common.jarset CLASSPATH=%CLASSPATH%;D:osslibweld-2.3.2.Finalartifactsweldweld-probe-core.jarset CLASSPATH=%CLASSPATH%;D:osslibweld-2.3.2.Finalartifactsweldweld-se-core.jarset CLASSPATH=%CLASSPATH%;D:osslibweld-2.3.2.Finalartifactsweldweld-se.jarset CLASSPATH=%CLASSPATH%;D:osslibweld-2.3.2.Finalartifactsweldweld-servlet-core.jarset CLASSPATH=%CLASSPATH%;D:osslibweld-2.3.2.Finalartifactsweldweld-servlet.jarset CLASSPATH=%CLASSPATH%;D:osslibweld-2.3.2.Finalartifactsweldweld-spi.jar

%JAVA_HOME%binjavac.exe -cp %CLASSPATH% ProxyFactory.java

65 NEC , Ltd. 2016

CDI AP

Weld .class

.class startWebLogic.cmd CLASSPATH

CLASSPATH Windows

@REM In order to use resource consumption management policies or to get partition's resource consumption metrics, uncomment the following JAVA_OPTIONS

set #JAVA_OPTIONS=-XX:+UnlockCommercialFeatures -XX:+ResourceManagement -XX:+UseG1GC %SAVE_JAVA_OPTIONS%

set SAVE_JAVA_OPTIONS=

set CLASSPATH=%SAVE_CLASSPATH%

set CLASSPATH=D:OracleMiddlewareOracle_Homeuser_projectsdomainscdi_domainworkdebugclass;%CLASSPATH%

set SAVE_CLASSPATH=

66 NEC , Ltd. 2016

CDI AP

Weld .class

WebLogic Server CDI

**********************************************************************ProxyClassName : org.jboss.classfilewriter.ClassFileClassField : weld_proxy_field$$$491ClassField : weld_proxy_field$$$493ClassField : weld_proxy_field$$$492ClassField : weld_proxy_field$$$494ClassField : BEAN_ID_FIELDClassField : methodHandlerClassField : constructedClassMethod : destroyClassMethod : getTargetInstanceClassMethod : getHandlerClassMethod : lifecycle_mixin_$$_preDestroyClassMethod : sayHelloClassMethod : writeReplaceClassMethod : toStringClassMethod : ClassMethod : equalsClassMethod : setHandlerClassMethod : getTargetClassClassMethod : hashCodeClassMethod : initClassMethod : lifecycle_mixin_$$_postConstructClassMethod : **********************************************************************

@PreDestroy

@PostConstruct

CDI Bean sayHello()

@PreDestroy

@PostConstruct

67 NEC , Ltd. 2016

CDI AP

Weld .class

CDI Bean CDI Bean

OSS

6.

CDI Bean

CDI AP WELD-000072

CDI AP NamingException

CDI AP WELD-000321

69 NEC , Ltd. 2016

CDI Bean

CDI


beans.xml WebLogic Server 12.2.1.2.0 class A

EL Class A

Interface B

70 NEC , Ltd. 2016

CDI Bean

CDI Bean BImpl

P21 Java EE 7 CDI

beans.xml CDI Bean


import javax.annotation.PostConstruct;

public class BImpl implements B {@Overridepublic String execute() {

System.out.println( "BImpl#execute called !!." );return "Hello World.";

}

@PostConstructpublic void init() {

System.out.println( "BImpl was injected." );}

}

71 NEC , Ltd. 2016

CDI Bean

Java EE 7 CDI Bean

/

Java EE 7 CDI Bean beans.xml

beans.xml Web WEB-INF annotated BImpl CDI Bean

all CDI Bean

annotated

beans.xml WEB-INF / CDI Bean

none CDI Bean

72 NEC , Ltd. 2016

CDI Bean

CDI Bean

class A


import javax.inject.Inject;import javax.inject.Named;import javax.enterprise.context.RequestScoped;

@RequestScoped@Namedpublic class A {

@InjectB b;

public String getB() {return b.execute();

}}

class BImpl


import javax.enterprise.context.RequestScoped;

@RequestScopedpublic class BImpl implements B {

@Overridepublic String execute() {

System.out.println( "BImpl#execute called !!." );return "Hello World.";

}}

73 NEC , Ltd. 2016

CDI Bean

CDI Bean beans.xml bean-discovery-mode all

0 byte beans.xml WEB-INF bean-discovery-mode all

beans.xml

74 NEC , Ltd. 2016

CDI AP WELD-000072

CDI WebLogic Server 12.2.1.2.0

CDI Bean - @RequestScoped

EL hello

75 NEC , Ltd. 2016

CDI AP WELD-000072

CDI Bean @RequestScoped HTTP @SessionScoped

HelloImpl


//import javax.enterprise.context.RequestScoped;import javax.enterprise.context.SessionScoped;

//@RequestScoped@SessionScopedpublic class HelloImpl implements Hello {

private int count = 0;


// TODO Auto-generated method stubreturn "Hello World ( " + count++ + " ).";

}}

Test


//import javax.enterprise.context.RequestScoped;import javax.enterprise.context.SessionScoped;import javax.inject.Inject;import javax.inject.Named;

//@RequestScoped@SessionScoped@Namedpublic class Test {

@InjectHello hello;

public String getMessage() {return hello.sayHello();

}}

76 NEC , Ltd. 2016

CDI AP WELD-000072

77 NEC , Ltd. 2016

CDI AP WELD-000072

78 NEC , Ltd. 2016

CDI AP WELD-000072

@SessionScoped JSR-299

@SessionScoped CDI Bean Serializable

JSR-299

6.6.3. Passivating scopes

A passivating scope requires that:

beans with the scope are passivation capable, and

implementations of Contextual passed to any context object for the scope are passivation capable.

Passivating scopes must be explicitly declared @NormalScope(passivating=true).

For example, the built-in session and conversation scopes defined in Section 6.7, Context management for built-inscopes are passivating scopes. No other built-in scopes are passivating scopes.

79 NEC , Ltd. 2016

CDI AP WELD-000072

Serializable implements

CDI Bean Serializable implements

HelloImpl


import java.io.Serializable;import javax.enterprise.context.SessionScoped;

@SessionScopedpublic class HelloImpl implements Hello, Serializable {

private int count = 0;


// TODO Auto-generated method stubreturn "Hello World ( " + count++ + " ).";

}}

Test





@InjectHello hello;


}}

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CDI


WebLogic-Application-Version

CDI

81 NEC , Ltd. 2016


CDI WebLogic-Application-Version 1.1

Version 1.1

82 NEC , Ltd. 2016


CDI

83 NEC , Ltd. 2016


####

84 NEC , Ltd. 2016


CDI Jersey Jersey JAX-RS Jersey CDIExtension#initialize() Weld

NamingException

java.lang.RuntimeException: javax.naming.NamingException: CDIExtension was previously bound from another application 'CDISampleEar1'; remaining name ''

at com.sun.jersey.server.impl.cdi.CDIExtension.initialize(CDIExtension.java:199)at com.sun.jersey.server.impl.cdi.CDIExtension.beforeBeanDiscovery(CDIExtension.java:300)

85 NEC , Ltd. 2016


Jersey CDIExtension#initialize() WebLogic Server CDI Weld Jersey

WebLogic Server Weld Jersey verbose:class CDI

com.oracle.injection.integration.CDIAppDeploymentExtension

-verbose:class

[Loaded com.oracle.injection.integration.CDIIntegrationService from file:/D:/Oracle/Middleware/Oracle_Home/wlserver/modules/com.oracle.injection.integration.weblogic.jar][Loaded com.oracle.injection.integration.CDIModuleExtensionFactory from file:/D:/Oracle/Middleware/Oracle_Home/wlserver/modules/com.oracle.injection.integration.weblogic.jar][Loaded com.oracle.injection.integration.CDIUtils from file:/D:/Oracle/Middleware/Oracle_Home/wlserver/modules/com.oracle.injection.integration.weblogic.jar][Loaded com.oracle.injection.integration.CDIAppDeploymentExtensionFactory from file:/D:/Oracle/Middleware/Oracle_Home/wlserver/modules/com.oracle.injection.integration.weblogic.jar][Loaded com.oracle.injection.integration.CDIAppDeploymentExtension from file:/D:/Oracle/Middleware/Oracle_Home/wlserver/modules/com.oracle.injection.integration.weblogic.jar][Loaded com.oracle.injection.integration.CDIAppValidationExtension from file:/D:/Oracle/Middleware/Oracle_Home/wlserver/modules/com.oracle.injection.integration.weblogic.jar]

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CDI CDI JAX-RS Weld Jersey

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Jersey CDIExtension#initialize() MANIFEST.MF WebLogic-Application-Version CDI JNDI CDIExtension

JNDI com/sun/jersey/config/CDIExtension

JNDI CDIExtension

88 NEC , Ltd. 2016


CDIExtension#initialize() JNDI

lookupExtensionInBeanManager false JNDI lookupExtensionInBeanManager true com.sun.jersey.server.impl.cdi.lookupExtensionInBeanManager true

CDIExtension#initialize()

private void initialize(BeanManager manager) {// initialize in a separate method because Weld creates a proxy for the extension// and we don't want to waste time initializing it

if (!lookupExtensionInBeanManager) {try {

InitialContext ic = InitialContextHelper.getInitialContext();if (ic != null) {

javax.naming.Context jerseyConfigJNDIContext = createJerseyConfigJNDIContext(ic);jerseyConfigJNDIContext.rebind(JNDI_CDIEXTENSION_NAME, this);

}} catch (NamingException ex) {

throw new RuntimeException(ex);}

}

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MANIFEST.MF WebLogic-Application-Version CDI config.xml JNDI

JNDI CDI NamingException

CDI

CDI MANIFEST.MF WebLogic-Application-Version

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JAVA_OPTIONS

CDIExtension#initialize() com/sun/jersey/config/CDIExtension JNDI Jersey CDI BeanManager NamingException

My Oracle Support DocId 1591081.1

-Dcom.sun.jersey.server.impl.cdi.lookupExtensionInBeanManager=true

91 NEC , Ltd. 2016

CDI AP WELD-000321

@ConversationScoped

org.jboss.weld.context.NonexistentConversationException: WELD-000321 No conversation found to restore for id 1

at org.jboss.weld.context.AbstractConversationContext.activate(AbstractConversationContext.java:217)at org.jboss.weld.jsf.WeldPhaseListener.activateConversations(WeldPhaseListener.java:108)at org.jboss.weld.jsf.WeldPhaseListener.beforePhase(WeldPhaseListener.java:85)at com.sun.faces.lifecycle.Phase.handleBeforePhase(Phase.java:228)at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:99)at com.sun.faces.lifecycle.RestoreViewPhase.doPhase(RestoreViewPhase.java:116)at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:280).....

92 NEC , Ltd. 2016

CDI AP WELD-000321

WELD-000321 ID WebLogic Server Google ID

JBoss Developer

stackoverflow> [WELD-000321 No conversation found to restore for id 3 when I refresh a page]

http://stackoverflow.com/questions/16325686/weld-000321-no-conversation-found-to-restore-for-id-3-when-i-refresh-a-page

github> [WELD-000321 No conversation found to restore for id 4]

https://github.com/agoncal/agoncal-application-petstore-ee6/issues/18

JBossDeveloper> [NonexistentConversationException: WELD-000321 No conversation found to restore for id 1]

https://issues.jboss.org/browse/WELD-1418?_sscc=t

JBossDeveloper> [WELD-000321: No conversation found to restore for id 1]

https://developer.jboss.org/thread/256298

JBossDeveloper> [Conversation-id-parameter causes WELD-000321 Exception]

https://issues.jboss.org/browse/JBSEAM-4941

http://stackoverflow.com/questions/16325686/weld-000321-no-conversation-found-to-restore-for-id-3-when-i-refresh-a-pagehttps://github.com/agoncal/agoncal-application-petstore-ee6/issues/18https://issues.jboss.org/browse/WELD-1418?_sscc=thttps://developer.jboss.org/thread/256298https://issues.jboss.org/browse/JBSEAM-4941

93 NEC , Ltd. 2016

CDI AP WELD-000321

github HTTP

HTTP

WebLogic Server weblogic > servlet > internal > session > DebugHttpSessions HTTP

Conversation#getTimeout() 600000 10

github> [WELD-000321 No conversation found to restore for id 4]


-----It's probably due to session or conversation timeout.Possible solutions :

Deal with the exception to forward to an error pageUse a keepalive trick (Ajax call) on given pages to be sure that session / conversation doesn't timeoutRaise the timeouts to very high length and rely on EJB passivation to avoid resource exhaustion. Anyway we'll need also 1.-----


94 NEC , Ltd. 2016

CDI AP WELD-000321

xhtml EL ManagedBean @PostConstruct Conversation#begin()

Conversation#begin() System.out.println() ID ID

CDI Bean

@Named@ConversationScopedpublic class Action implements Serializable {

@InjectConversation conversation;

@PostConstructpublic void start() {

conversation.begin();System.out.println( "***** cid = " + conversation.getId() );

}

Conversation#begin()

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CDI AP WELD-000321

JBossDeveloper 1.1.12.Final2.0.0.Final Weld 2.1.0.Beta1 WELD-1418




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CDI AP WELD-000321

@ConversationScoped xhtml JSF ajax / outputStylesheet




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CDI AP WELD-000321

outputScript / outputStylesheet JSF

xhtml

#{title}

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CDI AP WELD-000321

Weld 2.3.2.Final / Weld 2.1.2.Final WEB-INF/lib CDI

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CDI AP WELD-000321

Weld 2.3.2.Final / Weld 2.1.2.Final

100 NEC , Ltd. 2016

CDI AP WELD-000321

WELD-1418 JSF HTML

Weld

101 NEC , Ltd. 2016

CDI AP WELD-000321

WebLogic Server 12.2.1.0.0 WebLogic Server 12.2.1.0.0


WebLogic Server 12.2.1.0.0 Weld CDI 1.1 2.2.13.Final

102 NEC , Ltd. 2016

CDI AP WELD-000321

WELD-1418

Thread A Thread B

A

A ID:1 / HTTP

BHTTP

B

Thread C

C ID:1 / HTTP

A

HTTP

B HTTP

B put

HTTP B put

A put

ID:1 A

WELD-000321

103 NEC , Ltd. 2016

CDI AP WELD-000321

xhtml HTTP JSF HTML

JSF HTML B A HTTP A put

HTTP

A A HTTP put

ServletFilter HttpSession

A HTTP put

104 NEC , Ltd. 2016

CDI Bean Serializable implements

Java EE 7 CDI beans.xml CDI Bean

CDI -Dcom.sun.jersey.server.impl.cdi.lookupExtensionInBeanManager=true JAVA_OPTIONS

WebLogic Server 12c R112.1.3.0.0 R212.2.1.0.0 CDI WebLogic Server CDI

7.

CDI

@Qualifier


106 NEC , Ltd. 2016

CDI

Oracle Enterprise Pack for Eclipse (OEPE) 12.2.1.4

OEPE

Oracle Enterprise Pack for Eclipsehttp://www.oracle.com/technetwork/developer-tools/eclipse/downloads/index.html

JDK 1.8.0_102

JDK My Oracle Support

http://www.oracle.com/technetwork/developer-tools/eclipse/downloads/index.html

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CDI

OEPE

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CDI

[File] [New] [Project...] [New Project]

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CDI

[New Project] [Web] [Dynamic Web Project] type filter text Dynamic [Dynamic Web Project] [Next]

Dynamic Dynamic

Web Project

[Web] [Dynamic Web Project]

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CDI

[New Dynamic Web Project] [Project name] [Target runtime] [New Runtime]

CDISample Web

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CDI

[New Server Runtime Environment] [Oracle] [Oracle WebLogic Server 12c R2 (12.2.1)] type filter text Oracle WebLogic Server 12c [Oracle WebLogic Server 12c R2 (12.2.1)] [Next]

[Oracle WebLogic Server 12c R2 (12.2.1)]

Oracle WebLogic Server 12c

[Oracle WebLogic Server 12c R2 (12.2.1)]

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CDI

[WebLogic home] WL_HOME [Finish] [Java home] WL_HOME

113 NEC , Ltd. 2016

CDI

[New Dynamic Web Project] [Configuration] [Modify] [Project Facets]

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CDI

[Project Facets] [Configuration] [JavaServer Faces v2.2 Project] [OK]

CDI JSF JSF EL JSF

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CDI

[New Dynamic Web Project] [Target runtime] [Configuration] [Finish]

Oracle WebLogic Server 12c R2 (12.2.1)

JavaServer Faces v2.2 Project

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CDI

[Project Explorer] [Java Resources] Package / Interface / Class

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CDI

[New] [Package] [New Java Package]

[Name] [Finish]

weblogic.study

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CDI

[New] [Interface]

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CDI

[Name] [Finish]

Hello

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CDI

[New] [Class]

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CDI

[Name]

[Interfaces] [Add]

HelloImpl

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CDI

[Choose Interfaces] [Matching items] [OK]

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CDI

[Interfaces] [Finish]

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CDI

[Interfaces]

Test

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CDI

[Project Explorer]

Package weblogic.study

Interface Hello CDI Bean

Class HelloImpl CDI Bean

Class Test CDI

126 NEC , Ltd. 2016

CDI


public interface Hello {public String sayHello();

}


public class HelloImpl implements Hello {@Overridepublic String sayHello() {


}

127 NEC , Ltd. 2016

CDI

JSF EL @Named getter


import javax.inject.Inject;import javax.inject.Named;

@Namedpublic class Test {

@InjectHello hello;


}}

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CDI

@Named CDI Bean EL JSF

JSF index.xhtml

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CDI

index.xhtml

130 NEC , Ltd. 2016

CDI

CDI Bean Test HelloImpl CDI Test HelloImpl CDI Bean CDI Bean WEB-INF beans.xml

WebContent WEB-INF [New] [File]

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CDI

[New File] [File Name] beans.xml [Finish]

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CDI

[Project Explorer]

beans.xml

xml beans.xml

CDI Java EE 7 CDI CDI Bean

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CDI

war

CDISample[Export] [WAR file]

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CDI

[Destination] war [Browse...]

[Finish]

war weblogic.Deployer

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CDI

http://IP:PORT/CDISample/faces/index.xhtml

IP PORT

Test CDI Bean getMessage()

http://IP:PORT/CDISample/faces/index.xhtml

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Request @RequestScoped

Session @SessionScoped HTTP

Application @ApplicationScoped Web HTTP

Conversation @ConversationScoped

Conversation#begin() Conversation#end()JSF

Dependent @Dependent

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@Request

HTTP Keep-Alive HTTP

Client Request

Response

Request

Response

@RequestScoped

A

PP

Instance

Instance

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@Session

HTTP HTTP

Client Request

Response

Request

Response

@SessionScopedHTTP

A

PP

Instance

HTTP

HTTP

Create

Invalidate

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@Application

Client

A

PPInstance

Request

Response

Request

Response

Client

A

PP

STATE_PREPARED

@ApplicationScoped

STATE_ACTIVE

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@Conversation

HTTP Conversation#begin() Conversation#end()

Request

Client

A

PP

Instance

Request

Response

Request

Response

Request

Response

Request

Response

Request

Response


Conversation#end()


Conversation#end()

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@Qualifier

@Qualifier CDI

@InjectHello hello;



142 NEC , Ltd. 2016

@Qualifier

HelloImpl1

HelloImpl1


import static java.lang.annotation.ElementType.*;import static java.lang.annotation.RetentionPolicy.RUNTIME;import java.lang.annotation.Retention;import java.lang.annotation.Target;import javax.inject.Qualifier;

@Qualifier@Retention( RUNTIME )@Target( {METHOD, FIELD, PARAMETER, TYPE} )Public @interface Hello1 {}

HelloImpl1


import javax.enterprise.context.SessionScoped;

@Hello1public class HelloImpl1 implements Hello {}

HelloImpl1

javax.inject.Qualifier @Qualifier

143 NEC , Ltd. 2016

@Qualifier

HelloImpl1 HelloImpl2

HelloImpl2


import static java.lang.annotation.ElementType.*;import static java.lang.annotation.RetentionPolicy.RUNTIME;import java.lang.annotation.Retention;import java.lang.annotation.Target;import javax.inject.Qualifier;

@Qualifier@Retention( RUNTIME )@Target( {METHOD, FIELD, PARAMETER, TYPE} )Public @interface Hello2 {}

HelloImpl2


import javax.enterprise.context.SessionScoped;

@Hello2public class HelloImpl2 implements Hello {}

javax.inject.Qualifier @Qualifier

HelloImpl2

144 NEC , Ltd. 2016

@Qualifier

HelloImpl2


import javax.enterprise.context.SessionScoped;import javax.inject.Inject;import javax.inject.Named;

@Namedpublic class Test {


@Inject@Hello2Hello hello;

public String getHello() {return hello.sayHello();

}}

Hello2Impl

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CDI Bean

CDI Bean

@Inject@Hello2 @Hello1Hello hello;

public String getHello() {return hello.sayHello();

}

CDI Bean

146 NEC , Ltd. 2016


HellpImpl HelloImplDev

@InjectHello hello;

HelloImplTest implements Hello


HelloImplDev implements Hello

147 NEC , Ltd. 2016


CDI Bean Bean Bean

@CDI Bean


import javax.enterprise.context.RequestScoped;

@RequestScopedpublic class HelloImpl implements Hello {


// TODO Auto-generated method stubreturn "Hello World (Production).";

}

}

Bean


import javax.annotation.Priority;import javax.enterprise.context.RequestScoped;import javax.enterprise.inject.Alternative;

@Alternative@Priority( 1000 )@RequestScopedpublic class HelloImplDev implements Hello {


// TODO Auto-generated method stubreturn "Hello World (Development).";

}

}

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@Alternative Bean Bean

@Priority Bean

Java EE 7 Java EE 6

Java EE 6 beans.xml Bean

Bean CDI Bean

beans.xml

weblogic.study.HelloImplDev

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Bean CDI Bean

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