| /* |
| * 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.olingo.server.sample; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| |
| import javax.servlet.ServletException; |
| import javax.servlet.http.HttpServlet; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| import javax.servlet.http.HttpSession; |
| |
| import org.apache.olingo.server.api.OData; |
| import org.apache.olingo.server.api.ODataHttpHandler; |
| import org.apache.olingo.server.api.ServiceMetadata; |
| import org.apache.olingo.server.api.edmx.EdmxReference; |
| import org.apache.olingo.server.sample.data.DataProvider; |
| import org.apache.olingo.server.sample.edmprovider.CarsEdmProvider; |
| import org.apache.olingo.server.sample.processor.CarsProcessor; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class CarsServlet extends HttpServlet { |
| |
| private static final long serialVersionUID = 1L; |
| private static final Logger LOG = LoggerFactory.getLogger(CarsServlet.class); |
| |
| @Override |
| protected void service(final HttpServletRequest req, final HttpServletResponse resp) |
| throws ServletException, IOException { |
| try { |
| HttpSession session = req.getSession(true); |
| DataProvider dataProvider = (DataProvider) session.getAttribute(DataProvider.class.getName()); |
| if (dataProvider == null) { |
| dataProvider = new DataProvider(); |
| session.setAttribute(DataProvider.class.getName(), dataProvider); |
| LOG.info("Created new data provider."); |
| } |
| |
| OData odata = OData.newInstance(); |
| ServiceMetadata edm = odata.createServiceMetadata(new CarsEdmProvider(), new ArrayList<EdmxReference>()); |
| ODataHttpHandler handler = odata.createHandler(edm); |
| handler.register(new CarsProcessor(dataProvider)); |
| handler.process(req, resp); |
| } catch (RuntimeException e) { |
| LOG.error("Server Error", e); |
| throw new ServletException(e); |
| } |
| } |
| } |