| /* |
| * Copyright (c) 2008, Rickard Öberg. All Rights Reserved. |
| * |
| * 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.qi4j.library.http; |
| |
| import java.io.IOException; |
| import javax.servlet.Filter; |
| import javax.servlet.FilterChain; |
| import javax.servlet.FilterConfig; |
| import javax.servlet.ServletException; |
| import javax.servlet.ServletRequest; |
| import javax.servlet.ServletResponse; |
| import org.qi4j.api.injection.scope.Structure; |
| import org.qi4j.api.unitofwork.UnitOfWork; |
| import org.qi4j.api.unitofwork.UnitOfWorkFactory; |
| |
| /** |
| * JAVADOC |
| */ |
| public class UnitOfWorkFilter |
| implements Filter |
| { |
| @Structure private UnitOfWorkFactory uowf; |
| |
| @Override |
| public void init( FilterConfig filterConfig ) |
| throws ServletException |
| { |
| } |
| |
| @Override |
| public void doFilter( ServletRequest request, ServletResponse response, FilterChain chain ) |
| throws IOException, ServletException |
| { |
| UnitOfWork unitOfWork = uowf.newUnitOfWork(); |
| try |
| { |
| chain.doFilter( request, response ); |
| |
| if( unitOfWork.isOpen() ) |
| { |
| unitOfWork.complete(); |
| } |
| } |
| catch( Exception e ) |
| { |
| unitOfWork.discard(); |
| } |
| |
| } |
| |
| @Override |
| public void destroy() |
| { |
| } |
| } |