/*
* Copyright 2013 JBoss Inc
*
* Licensed 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.kie.spring.factorybeans;
import org.kie.api.KieBase;
import org.kie.api.KieServices;
import org.kie.api.builder.KieScanner;
import org.kie.api.builder.ReleaseId;
import org.kie.api.runtime.KieContainer;
import org.kie.spring.KieObjectsResolver;
import org.kie.spring.annotations.AnnotationsUtil;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.support.BeanDefinitionRegistry;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
public class KieImportFactoryBean
implements
FactoryBean<KieContainer>,
InitializingBean, BeanFactoryPostProcessor, ApplicationContextAware {
protected ReleaseId releaseId;
protected KieContainer kContainer;
protected ApplicationContext applicationContext;
protected KieObjectsResolver kieObjectsResolver;
protected boolean scannerEnabled = false;
protected int scannerInterval = 1000;
protected KieScanner kieScanner;
protected String releaseIdName;
public ReleaseId getReleaseId() {
return releaseId;
}
public void setReleaseId(ReleaseId releaseId) {
this.releaseId = releaseId;
}
public boolean isScannerEnabled() {
return scannerEnabled;
}
public void setScannerEnabled(boolean scannerEnabled) {
this.scannerEnabled = scannerEnabled;
}
public int getScannerInterval() {
return scannerInterval;
}
public String getReleaseIdName() {
return releaseIdName;
}
public void setReleaseIdName(String releaseIdName) {
this.releaseIdName = releaseIdName;
}
public void setScannerInterval(int scannerInterval) {
this.scannerInterval = scannerInterval;
}
public KieContainer getObject() throws Exception {
return kContainer;
}
public Class<? extends KieContainer> getObjectType() {
return KieContainer.class;
}
public boolean isSingleton() {
return true;
}
public void afterPropertiesSet() throws Exception {
}
@Override
public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
this.applicationContext = applicationContext;
}
@Override
public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException {
kieObjectsResolver = new KieObjectsResolver();
setKContainer();
registerKieBases(beanFactory);
AnnotationsUtil.registerAnnotationConfigProcessors((BeanDefinitionRegistry) beanFactory, releaseId);
}
protected void setKContainer() {
if (releaseId != null) {
kContainer = KieServices.Factory.get().newKieContainer(releaseId);
if (scannerEnabled){
kieScanner = KieServices.Factory.get().newKieScanner(kContainer);
kieScanner.start(scannerInterval);
}
} else {
kContainer = KieServices.Factory.get().getKieClasspathContainer();
}
}
protected void registerKieBases(ConfigurableListableBeanFactory configurableListableBeanFactory) {
for (String kieBaseName : kContainer.getKieBaseNames()) {
if ( scannerEnabled ) {
registerKieBeanDef((BeanDefinitionRegistry) configurableListableBeanFactory, kieBaseName);
configurableListableBeanFactory.registerSingleton(releaseIdName+"#scanner", kieScanner);
} else {
KieBase kieBase = kContainer.getKieBase(kieBaseName);
configurableListableBeanFactory.registerSingleton(kieBaseName, kieBase);
}
registerKieSessions(kieBaseName, configurableListableBeanFactory);
}
}
private void registerKieBeanDef(BeanDefinitionRegistry beanDefinitionRegistry, String kieBaseName) {
BeanDefinitionBuilder factory = BeanDefinitionBuilder.rootBeanDefinition(KBaseFactoryBean.class);
factory.addPropertyValue("kBaseName", kieBaseName);
factory.addPropertyValue("id", kieBaseName);
factory.addPropertyValue("singleton", false);
factory.addPropertyValue("kieContainer", kContainer);
beanDefinitionRegistry.registerBeanDefinition(kieBaseName, factory.getBeanDefinition());
}
protected void registerKieSessions(String kieBaseName, ConfigurableListableBeanFactory configurableListableBeanFactory) {
for (String kieSessionName : kContainer.getKieSessionNamesInKieBase(kieBaseName)) {
Object ksession = kieObjectsResolver.resolveKSession(kContainer, kieSessionName);
configurableListableBeanFactory.registerSingleton(kieSessionName, ksession);
}
}
}