| /* |
| * 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 WARRANTIESOR 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.aries.jpa.example.tasklist.ds.impl; |
| |
| import java.io.IOException; |
| import java.io.PrintWriter; |
| import java.text.SimpleDateFormat; |
| import java.util.Collection; |
| |
| import javax.servlet.Servlet; |
| import javax.servlet.ServletException; |
| import javax.servlet.http.HttpServlet; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| |
| import org.apache.aries.jpa.example.tasklist.model.Task; |
| import org.apache.aries.jpa.example.tasklist.model.TaskService; |
| import org.osgi.service.component.annotations.Component; |
| import org.osgi.service.component.annotations.Reference; |
| |
| @Component(immediate = true, |
| service = { Servlet.class }, |
| property = { "alias:String=/tasklist" } |
| ) |
| public class TasklistServlet extends HttpServlet { |
| private static final long serialVersionUID = 34992072289535683L; |
| private transient TaskService taskService; // NOSONAR |
| |
| @Override |
| protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, |
| IOException { |
| String add = req.getParameter("add"); |
| String taskId = req.getParameter("taskId"); |
| String title = req.getParameter("title"); |
| PrintWriter writer = resp.getWriter(); // NOSONAR |
| if (add != null) { |
| addTask(taskId, title); |
| } else if (taskId != null && taskId.length() > 0) { |
| showTask(writer, taskId); |
| } else { |
| showTaskList(writer); |
| } |
| } |
| |
| private void addTask(String taskId, String title) { |
| Task task = new Task(); |
| task.setId(new Integer(taskId)); |
| task.setTitle(title); |
| taskService.addTask(task ); |
| } |
| |
| private void showTaskList(PrintWriter writer) { |
| writer.println("<h1>Tasks</h1>"); |
| Collection<Task> tasks = taskService.getTasks(); |
| for (Task task : tasks) { |
| writer.println("<a href=\"?taskId=" + task.getId() + "\">" + task.getTitle() + "</a><BR/>"); |
| } |
| } |
| |
| private void showTask(PrintWriter writer, String taskId) { |
| SimpleDateFormat sdf = new SimpleDateFormat(); |
| Task task = taskService.getTask(new Integer(taskId)); |
| if (task != null) { |
| writer.println("<h1>Task " + task.getTitle() + " </h1>"); |
| if (task.getDueDate() != null) { |
| writer.println("Due date: " + sdf.format(task.getDueDate()) + "<br/>"); |
| } |
| writer.println(task.getDescription()); |
| } else { |
| writer.println("Task with id " + taskId + " not found"); |
| } |
| |
| } |
| |
| @Reference |
| public void setTaskService(TaskService taskService) { |
| this.taskService = taskService; |
| } |
| |
| } |