xworker.db.hibernate.HibernateContext Maven / Gradle / Ivy
/*******************************************************************************
* Copyright 2007-2013 See AUTHORS file.
*
* 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 xworker.db.hibernate;
import java.io.File;
import java.util.HashMap;
import java.util.Map;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
import org.xmeta.ActionContext;
import org.xmeta.ActionException;
import org.xmeta.Bindings;
import org.xmeta.Thing;
import org.xmeta.World;
import org.xmeta.util.UtilString;
import xworker.lang.executor.Executor;
public class HibernateContext {
private static final String TAG = HibernateContext.class.getName();
private static World world = World.getInstance();
/** Hibernate工厂实例 */
private static Map factorys = new HashMap();
/**
* 取系统默认的数据库工厂。
*
* @return 数据库工厂
*/
public static SessionFactory getDbSessionFactory(){
Thing dw = null;//UtilDefault.getDefaultWebapp();
String dbName = "xworker";
if(dw != null){
dbName = dw.getMetadata().getName();
}
return getDbSessionFactory(dbName);
}
/**
* 通过名称取hibernate SessionFactory。
*
* @param name
* @return
*/
public static SessionFactory getDbSessionFactory(String name){
if(name == null) name = "xworker";
SessionFactory f = factorys.get(name);
if(f == null){
initDbSessionFactory(name);
f = factorys.get(name);
}
return f;
}
public static void initDbSessionFactory(String name){
try{
SessionFactory f = (SessionFactory) factorys.get(name);
if(f != null){
f.close();
f = null;
factorys.remove(name);
}
File configFile = new File(world.getPath() + "/work/hibernate/" + name + "/hibernate.cfg.xml");
//URL url = World.class.getResource("../../" + name + "/hibernate.cfg.xml");
//if(url == null){
if(!configFile.exists()){
Executor.warn(TAG, "指定的资源为空,无法初始化hibenate:" + configFile.getAbsolutePath());
}else{
//Configuration c = new Configuration().configure(url);
Configuration c = new Configuration().configure(configFile);
f = c.buildSessionFactory();
factorys.put(name, f);
}
}catch(Exception e){
//log.error("get db session factory", e);
if(e instanceof RuntimeException){
throw (RuntimeException) e;
}else{
throw new ActionException(e);
}
}
}
public static void closeDBSessionFactory(String name){
SessionFactory f = (SessionFactory) factorys.get(name);
if(f != null){
f.close();
f = null;
factorys.remove(name);
}
}
/**
* 继承,通过dbName是否相同来判断继承。
*
* @param actionContext
* @return
*/
public static ActionContext inherit(ActionContext actionContext){
ActionContext acContext = (ActionContext) actionContext.get("acContext");
Thing context = (Thing) actionContext.get("self");
String dbName = UtilString.getString(context.getString("configName"), acContext);
for(int i= acContext.getScopesSize() -1; i>=0; i--){
Bindings bindings = acContext.getScope(i);
for(Thing acontext : bindings.getContexts().keySet()){
if(acontext.isThing("xworker.lang.context.HibernateContext")){
String adbName = UtilString.getString(acontext.getString("configName"), acContext);
if(dbName == adbName || (dbName != null && dbName.equals(adbName))){
ActionContext accontext = bindings.getContexts().get(acontext);
String name = context.getMetadata().getName();
acContext.peek().put(name, accontext.get("session"));
acContext.peek().put(name + "Factory", accontext.get("factory"));
}
}
}
}
return null;
}
public static void init(ActionContext actionContext){
Thing context = (Thing) actionContext.get("self");
ActionContext acContext = (ActionContext) actionContext.get("acContext");
String dbName = context.getString("configName");
if(dbName == null || "".equals(dbName)) return;
if(dbName.startsWith("self.")){
dbName = dbName.substring(5, dbName.length());
Thing acSelf = (Thing) acContext.get("self");
if(acSelf != null){
dbName = acSelf.getString(dbName);
}
}else if(dbName.startsWith("\"")){
dbName = dbName.substring(1, dbName.length() - 1);
}else{
String dName = (String) acContext.get(dbName);
if(dName != null && !"".equals(dName)){
dbName = dName;
}
}
if(dbName == null || "".equals(dbName)){
return;
}
SessionFactory factory = getDbSessionFactory(dbName);
if(factory == null){
return;
}
boolean isNeedTransaction = context.getBoolean("isNeedTransaction");
Session session = factory.openSession();
if(isNeedTransaction){
Transaction tx = session.beginTransaction();
tx.begin();
actionContext.getScope(0).put("transaction", tx);
}
actionContext.getScope(0).put("factory", factory);
actionContext.getScope(0).put("session", session);
String name = context.getMetadata().getName();
acContext.put(name + "Factory", factory);
acContext.put(name, session);
}
public static void success(ActionContext actionContext){
Thing context = (Thing) actionContext.get("self");
Session session = (Session) actionContext.get("session");
boolean isNeedTransaction = context.getBoolean("isNeedTransaction");
Transaction tx = (Transaction) actionContext.get("transaction");
try{
if(isNeedTransaction && tx != null){
tx.commit();
}
}catch(RuntimeException e){
try{
tx.rollback();
}catch(Exception ee){
}
throw e;
}finally{
if(session != null){
session.close();
}
}
//System.out.println("hibernate context success");
}
public static void exception(ActionContext actionContext){
Thing context = (Thing) actionContext.get("self");
Session session = (Session) actionContext.get("session");
boolean isNeedTransaction = context.getBoolean("isNeedTransaction");
Transaction tx = (Transaction) actionContext.get("transaction");
try{
if(isNeedTransaction && tx != null){
tx.rollback();
}
}catch(RuntimeException e){
try{
tx.rollback();
}catch(Exception ee){
}
throw e;
}finally{
if(session != null){
session.close();
}
}
}
}
© 2015 - 2025 Weber Informatics LLC | Privacy Policy