com.bstek.urule.runtime.service.KnowledgeServiceImpl Maven / Gradle / Ivy
/*******************************************************************************
* Copyright 2017 Bstek
*
* 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 com.bstek.urule.runtime.service;
import java.io.IOException;
import java.util.logging.Logger;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import com.bstek.urule.RuleException;
import com.bstek.urule.runtime.KnowledgePackage;
import com.bstek.urule.runtime.cache.CacheUtils;
/**
* @author Jacky.gao
* @since 2015年1月28日
*/
public class KnowledgeServiceImpl implements KnowledgeService,ApplicationContextAware {
private long knowledgeUpdateCycle;
private RemoteService remoteService;
private KnowledgePackageService knowledgePackageService;
private Logger log=Logger.getLogger(KnowledgeServiceImpl.class.getName());
@Override
public KnowledgePackage[] getKnowledges(String[] packageIds) throws IOException{
KnowledgePackage[] packages=new KnowledgePackage[packageIds.length];
for(int i=0;i=knowledgeUpdateCycle){
KnowledgePackage remoteKnowledgePackage=remoteService.getKnowledge(packageId, String.valueOf(knowledgePackage.getTimestamp()));
if(remoteKnowledgePackage==null){
//表示repository中knowledgepackage与本地的比较无更新
log.info("Not need update remote knowledgepackage.");
knowledgePackage.resetTimestamp();
CacheUtils.getKnowledgeCache().putKnowledge(packageId, knowledgePackage);
}else{
log.info("Need update remote knowledgepackage.");
remoteKnowledgePackage.resetTimestamp();
CacheUtils.getKnowledgeCache().putKnowledge(packageId, remoteKnowledgePackage);
}
}
}
return knowledgePackage;
}
private KnowledgePackage fetchKnowledgePackage(String packageId) throws IOException{
KnowledgePackage knowledgePackage=remoteService.getKnowledge(packageId, null);
if(knowledgePackage==null){
//表示无法连接远程server.
if(knowledgePackageService==null){
throw new RuleException("Remote service and local KnowledgePackageService all unavailable");
}else{
knowledgePackage=knowledgePackageService.buildKnowledgePackage(packageId);
}
}
return knowledgePackage;
}
public void setRemoteService(RemoteService remoteService) {
this.remoteService = remoteService;
}
public void setKnowledgeUpdateCycle(String knowledgeUpdateCycle) {
if(StringUtils.isEmpty(knowledgeUpdateCycle) || knowledgeUpdateCycle.equals("${urule.knowledgeUpdateCycle}")){
return;
}
this.knowledgeUpdateCycle = Long.valueOf(knowledgeUpdateCycle);
}
@Override
public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
boolean hasBean=applicationContext.containsBean(KnowledgePackageService.BEAN_ID);
if(hasBean){
knowledgePackageService=(KnowledgePackageService)applicationContext.getBean(KnowledgePackageService.BEAN_ID);
}
}
}