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Move CDI plugin into trunk

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git-svn-id: https://svn.apache.org/repos/asf/struts/struts2/trunk@1172467 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Lukasz Lenart
2011-09-19 05:49:16 +00:00
parent bdf0f0da81
commit 08462f2c15
10 changed files with 503 additions and 0 deletions
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plugins/cdi/pom.xml
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<?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.apache.struts</groupId>
<artifactId>struts2-plugins</artifactId>
<version>2.3-SNAPSHOT</version>
</parent>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-cdi-plugin</artifactId>
<version>2.3-SNAPSHOT</version>
<dependencies>
<dependency>
<groupId>javax.enterprise</groupId>
<artifactId>cdi-api</artifactId>
<version>1.0-SP1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.jboss.weld</groupId>
<artifactId>weld-core</artifactId>
<version>1.0.1-Final</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.jboss.weld</groupId>
<artifactId>weld-se</artifactId>
<version>1.0.1-Final</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
</project>
plugins/cdi/src/main/java/org/apache/struts2/cdi/CdiObjectFactory.java
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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.struts2.cdi;
import com.opensymphony.xwork2.ObjectFactory;
import com.opensymphony.xwork2.util.logging.Logger;
import com.opensymphony.xwork2.util.logging.LoggerFactory;
import javax.enterprise.context.spi.CreationalContext;
import javax.enterprise.inject.spi.BeanManager;
import javax.enterprise.inject.spi.InjectionTarget;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
/**
* CdiObjectFactory allows Struts 2 managed objects, like Actions, Interceptors or Results, to be injected by a Contexts
* and Dependency Injection container (JSR299 / WebBeans).
*/
public class CdiObjectFactory extends ObjectFactory {
private static final Logger LOG = LoggerFactory.getLogger(CdiObjectFactory.class);
/**
* The key under which the BeanManager can be found according to CDI API docs
*/
public static final String CDI_JNDIKEY_BEANMANAGER_COMP = "java:comp/BeanManager";
/**
* The key under which the BeanManager can be found according to JBoss Weld docs
*/
public static final String CDI_JNDIKEY_BEANMANAGER_APP = "java:app/BeanManager";
protected BeanManager beanManager;
protected CreationalContext ctx;
Map<Class<?>, InjectionTarget<?>> injectionTargetCache = new ConcurrentHashMap<Class<?>, InjectionTarget<?>>();
public CdiObjectFactory() {
super();
LOG.info("Initializing Struts2 CDI integration...");
this.beanManager = findBeanManager();
if (beanManager != null) {
this.ctx = buildNonContextualCreationalContext(beanManager);
LOG.info("Struts2 CDI integration initialized.");
} else {
LOG.error("Struts2 CDI integration could not be initialized.");
}
}
/**
* Try to find the CDI BeanManager from JNDI context. First the key {@link #CDI_JNDIKEY_BEANMANAGER_COMP} will be
* tested. If nothing is found there, the key {@link #CDI_JNDIKEY_BEANMANAGER_APP} will be checked.
*
* @return the BeanManager, if found. <tt>null</tt> otherwise.
*/
protected BeanManager findBeanManager() {
BeanManager bm;
try {
Context initialContext = new InitialContext();
LOG.info("[findBeanManager]: Checking for BeanManager under JNDI key " + CDI_JNDIKEY_BEANMANAGER_COMP);
try {
bm = (BeanManager) initialContext.lookup(CdiObjectFactory.CDI_JNDIKEY_BEANMANAGER_COMP);
} catch (NamingException e) {
LOG.warn("[findBeanManager]: Lookup failed.", e);
LOG.info("[findBeanManager]: Checking for BeanManager under JNDI key " + CDI_JNDIKEY_BEANMANAGER_APP);
bm = (BeanManager) initialContext.lookup(CdiObjectFactory.CDI_JNDIKEY_BEANMANAGER_APP);
}
LOG.info("[findBeanManager]: BeanManager found.");
return bm;
} catch (NamingException e) {
LOG.error("Could not get BeanManager from JNDI context", e);
}
return null;
}
@Override
@SuppressWarnings("unchecked")
public Object buildBean(String className, Map<String, Object> extraContext, boolean injectInternal)
throws Exception {
Class<?> clazz = getClassInstance(className);
InjectionTarget injectionTarget = getInjectionTarget(clazz);
Object o = injectionTarget.produce(ctx);
injectionTarget.inject(o, ctx);
injectionTarget.postConstruct(o);
if (injectInternal) {
injectInternalBeans(o);
}
return o;
}
/**
* Get a InjectionTarget instance for a given class. If the appropriate target is not found in cache, a nw instance
* will be created.
*
* @param clazz The class to get a InjectionTarget instance for.
* @return if found in cache, an existing instance. A new instance otherwise.
*/
protected InjectionTarget<?> getInjectionTarget(Class<?> clazz) {
InjectionTarget<?> result;
result = injectionTargetCache.get(clazz);
if (result == null) {
result = beanManager.createInjectionTarget(beanManager.createAnnotatedType(clazz));
injectionTargetCache.put(clazz, result);
}
return result;
}
/**
* Simple wrapper for CreationalContext creation.
*
* @param beanManager the BeanManager to use for creating the context.
* @return the context to use, if given BeanManager was not <tt>null</tt>. <tt>null</tt> otherwise.
*/
@SuppressWarnings("unchecked")
protected CreationalContext buildNonContextualCreationalContext(BeanManager beanManager) {
return beanManager != null ? beanManager.createCreationalContext(null) : null;
}
}
plugins/cdi/src/main/resources/LICENSE.txt
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Apache License
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http://www.apache.org/licenses/
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plugins/cdi/src/main/resources/NOTICE.txt
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Apache Struts
Copyright 2000-2009 The Apache Software Foundation
This product includes software developed by
The Apache Software Foundation (http://www.apache.org/).
plugins/cdi/src/main/resources/struts-plugin.xml
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<?xml version="1.0" encoding="UTF-8" ?>
<!--
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
-->
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>
<bean type="com.opensymphony.xwork2.ObjectFactory" name="cdi" class="org.apache.struts2.cdi.CdiObjectFactory" />
<!-- Make the CDI object factory the automatic default -->
<constant name="struts.objectFactory" value="cdi" />
<constant name="struts.class.reloading.reloadConfig" value="false" />
</struts>
plugins/cdi/src/test/java/org/apache/struts2/cdi/CdiObjectFactoryTest.java
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package org.apache.struts2.cdi;
import org.jboss.weld.environment.se.StartMain;
import static org.junit.Assert.*;
import org.jboss.weld.environment.se.WeldContainer;
import org.junit.Before;
import org.junit.Test;
import org.springframework.mock.jndi.SimpleNamingContextBuilder;
import javax.enterprise.inject.spi.InjectionTarget;
/**
* CdiObjectFactoryTest.
*/
public class CdiObjectFactoryTest {
@Before
public void setUp() throws Exception {
SimpleNamingContextBuilder builder = new SimpleNamingContextBuilder();
builder.activate();
StartMain sm = new StartMain(new String[0]);
WeldContainer weldContainer = sm.go();
builder.bind(CdiObjectFactory.CDI_JNDIKEY_BEANMANAGER_COMP, weldContainer.getBeanManager());
}
@Test
public void testFindBeanManager() throws Exception {
assertNotNull(new CdiObjectFactory().findBeanManager());
}
@Test
public void testGetBean() throws Exception {
final CdiObjectFactory cdiObjectFactory = new CdiObjectFactory();
FooConsumer fooConsumer = (FooConsumer) cdiObjectFactory.buildBean(FooConsumer.class.getCanonicalName(), null, false);
assertNotNull(fooConsumer);
assertNotNull(fooConsumer.fooService);
}
@Test public void testGetInjectionTarget() throws Exception {
final CdiObjectFactory cdiObjectFactory = new CdiObjectFactory();
final InjectionTarget<?> injectionTarget = cdiObjectFactory.getInjectionTarget(FooConsumer.class);
assertNotNull(injectionTarget);
assertTrue(cdiObjectFactory.injectionTargetCache.containsKey(FooConsumer.class));
assertSame(cdiObjectFactory.getInjectionTarget(FooConsumer.class), injectionTarget);
}
}
plugins/cdi/src/test/java/org/apache/struts2/cdi/FooConsumer.java
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package org.apache.struts2.cdi;
import javax.inject.Inject;
/**
* FooConsumer.
*/
public class FooConsumer {
@Inject
FooService fooService;
public void foo() {
System.out.println(fooService.getHello());
}
}
plugins/cdi/src/test/java/org/apache/struts2/cdi/FooService.java
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package org.apache.struts2.cdi;
/**
* FooService.
*/
public class FooService {
public String getHello() {
return "Hello";
}
}
plugins/cdi/src/test/resources/META-INF/beans.xml
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<beans></beans>
plugins/cdi/src/test/resources/log4j.properties
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# Set root logger level to WARN and append to stdout
log4j.rootLogger=INFO, stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
# Pattern to output the caller's file name and line number.
log4j.appender.stdout.layout.ConversionPattern=%d %5p (%c:%L) - %m%n
# Print only messages of level ERROR or above in the package noModule.
log4j.logger.noModule=FATAL