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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.cxf.configuration.spring;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.CopyOnWriteArraySet;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.regex.PatternSyntaxException;
import org.apache.cxf.common.injection.NoJSR250Annotations;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.configuration.Configurable;
import org.apache.cxf.configuration.Configurer;
import org.apache.cxf.extension.BusExtension;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.NoSuchBeanDefinitionException;
import org.springframework.beans.factory.config.AutowireCapableBeanFactory;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.support.AbstractBeanFactory;
import org.springframework.beans.factory.support.BeanDefinitionRegistry;
import org.springframework.beans.factory.wiring.BeanConfigurerSupport;
import org.springframework.beans.factory.wiring.BeanWiringInfo;
import org.springframework.beans.factory.wiring.BeanWiringInfoResolver;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.ConfigurableApplicationContext;
@NoJSR250Annotations
public class ConfigurerImpl extends BeanConfigurerSupport
implements Configurer, ApplicationContextAware, BusExtension {
private static final Logger LOG = LogUtils.getL7dLogger(ConfigurerImpl.class);
private Set appContexts;
private final Map> wildCardBeanDefinitions
= new HashMap>();
private BeanFactory beanFactory;
static class MatcherHolder {
Matcher matcher;
String wildCardId;
public MatcherHolder(String orig, Matcher matcher) {
wildCardId = orig;
this.matcher = matcher;
}
}
public ConfigurerImpl() {
// complete
}
public ConfigurerImpl(ApplicationContext ac) {
setApplicationContext(ac);
}
public void setBeanFactory(BeanFactory beanFactory) {
this.beanFactory = beanFactory;
super.setBeanFactory(beanFactory);
}
private void initWildcardDefinitionMap() {
if (null != appContexts) {
for (ApplicationContext appContext : appContexts) {
for (String n : appContext.getBeanDefinitionNames()) {
if (isWildcardBeanName(n)) {
AutowireCapableBeanFactory bf = appContext.getAutowireCapableBeanFactory();
BeanDefinitionRegistry bdr = (BeanDefinitionRegistry) bf;
BeanDefinition bd = bdr.getBeanDefinition(n);
String className = bd.getBeanClassName();
if (null != className) {
String orig = n;
if (n.charAt(0) == '*') {
//old wildcard
n = "." + n.replaceAll("\\.", "\\.");
}
try {
Matcher matcher = Pattern.compile(n).matcher("");
List m = wildCardBeanDefinitions.get(className);
if (m == null) {
m = new ArrayList();
wildCardBeanDefinitions.put(className, m);
}
MatcherHolder holder = new MatcherHolder(orig, matcher);
m.add(holder);
} catch (PatternSyntaxException npe) {
//not a valid patter, we'll ignore
}
} else {
LogUtils.log(LOG, Level.WARNING, "WILDCARD_BEAN_ID_WITH_NO_CLASS_MSG", n);
}
}
}
}
}
}
public void configureBean(Object beanInstance) {
configureBean(null, beanInstance, true);
}
public void configureBean(String bn, Object beanInstance) {
configureBean(bn, beanInstance, true);
}
public synchronized void configureBean(String bn, Object beanInstance, boolean checkWildcards) {
if (null == appContexts) {
return;
}
if (null == bn) {
bn = getBeanName(beanInstance);
}
if (null == bn) {
return;
}
if (checkWildcards) {
configureWithWildCard(bn, beanInstance);
}
final String beanName = bn;
setBeanWiringInfoResolver(new BeanWiringInfoResolver() {
public BeanWiringInfo resolveWiringInfo(Object instance) {
if (!"".equals(beanName)) {
return new BeanWiringInfo(beanName);
}
return null;
}
});
for (ApplicationContext appContext : appContexts) {
if (appContext.containsBean(bn)) {
this.setBeanFactory(appContext.getAutowireCapableBeanFactory());
}
}
try {
//this will prevent a call into the AbstractBeanFactory.markBeanAsCreated(...)
//which saves ALL the names into a HashSet. For URL based configuration,
//this can leak memory
if (beanFactory instanceof AbstractBeanFactory) {
((AbstractBeanFactory)beanFactory).getMergedBeanDefinition(bn);
}
super.configureBean(beanInstance);
if (LOG.isLoggable(Level.FINE)) {
LOG.fine("Successfully performed injection.");
}
} catch (NoSuchBeanDefinitionException ex) {
// users often wonder why the settings in their configuration files seem
// to have no effect - the most common cause is that they have been using
// incorrect bean ids
if (LOG.isLoggable(Level.FINE)) {
LOG.log(Level.FINE, "NO_MATCHING_BEAN_MSG", beanName);
}
}
}
private void configureWithWildCard(String bn, Object beanInstance) {
if (!wildCardBeanDefinitions.isEmpty()) {
Class clazz = beanInstance.getClass();
while (!Object.class.equals(clazz)) {
String className = clazz.getName();
List matchers = wildCardBeanDefinitions.get(className);
if (matchers != null) {
for (MatcherHolder m : matchers) {
synchronized (m.matcher) {
m.matcher.reset(bn);
if (m.matcher.matches()) {
configureBean(m.wildCardId, beanInstance, false);
return;
}
}
}
}
clazz = clazz.getSuperclass();
}
}
}
private boolean isWildcardBeanName(String bn) {
return bn.indexOf('*') != -1 || bn.indexOf('?') != -1
|| (bn.indexOf('(') != -1 && bn.indexOf(')') != -1);
}
protected String getBeanName(Object beanInstance) {
if (beanInstance instanceof Configurable) {
return ((Configurable)beanInstance).getBeanName();
}
String beanName = null;
Method m = null;
try {
m = beanInstance.getClass().getDeclaredMethod("getBeanName", (Class[])null);
} catch (NoSuchMethodException ex) {
try {
m = beanInstance.getClass().getMethod("getBeanName", (Class[])null);
} catch (NoSuchMethodException e) {
//ignore
}
}
if (m != null) {
try {
beanName = (String)(m.invoke(beanInstance));
} catch (Exception ex) {
LogUtils.log(LOG, Level.WARNING, "ERROR_DETERMINING_BEAN_NAME_EXC", ex);
}
}
if (null == beanName) {
LogUtils.log(LOG, Level.FINE, "COULD_NOT_DETERMINE_BEAN_NAME_MSG",
beanInstance.getClass().getName());
}
return beanName;
}
public final void setApplicationContext(ApplicationContext ac) {
appContexts = new CopyOnWriteArraySet();
addApplicationContext(ac);
this.beanFactory = ac.getAutowireCapableBeanFactory();
super.setBeanFactory(this.beanFactory);
}
public final void addApplicationContext(ApplicationContext ac) {
if (!appContexts.contains(ac)) {
appContexts.add(ac);
List inactiveApplicationContexts = new ArrayList();
Iterator it = appContexts.iterator();
while (it.hasNext()) {
ApplicationContext c = it.next();
if (c instanceof ConfigurableApplicationContext
&& !((ConfigurableApplicationContext)c).isActive()) {
inactiveApplicationContexts.add(c);
}
}
// Remove the inactive application context here can avoid the UnsupportedOperationException
for (ApplicationContext context : inactiveApplicationContexts) {
appContexts.remove(context);
}
initWildcardDefinitionMap();
}
}
public void destroy() {
super.destroy();
appContexts.clear();
}
public Class getRegistrationType() {
return Configurer.class;
}
protected Set getAppContexts() {
return appContexts;
}
}