@ApiMethod(name = "storeTask")
public void storeTask(TaskBean taskBean) {
DatastoreService datastoreService = DatastoreServiceFactory.getDatastoreService();
Transaction txn = datastoreService.beginTransaction();
try {
Key taskBeanParentKey = KeyFactory.createKey("TaskBeanParent", "todo.txt");
Entity taskEntity = new Entity("TaskBean", taskBean.getId(), taskBeanParentKey);
taskEntity.setProperty("data", taskBean.getData());
datastoreService.put(taskEntity);
txn.commit();
} finally {
if (txn.isActive()) {
txn.rollback();
}
}
}
@ApiMethod(name = "getTasks")
public List<TaskBean> getTasks() {
DatastoreService datastoreService = DatastoreServiceFactory.getDatastoreService();
Key taskBeanParentKey = KeyFactory.createKey("TaskBeanParent", "todo.txt");
Query query = new Query(taskBeanParentKey);
List<Entity> results =
datastoreService.prepare(query).asList(FetchOptions.Builder.withDefaults());
ArrayList<TaskBean> taskBeans = new ArrayList<TaskBean>();
for (Entity result : results) {
TaskBean taskBean = new TaskBean();
taskBean.setId(result.getKey().getId());
taskBean.setData((String) result.getProperty("data"));
taskBeans.add(taskBean);
}
return taskBeans;
}
public static void main(String[] args) {
boolean autoGoBack = false;
String str;
Scanner sc1 = new Scanner(System.in);
Scanner sc2 = new Scanner(System.in);
int ch1 = 0;
int ch2 = 0;
int ch3 = 0;
File categoryList[] = new File[100];
String driver = "org.hsqldb.jdbcDriver";
String url = "jdbc:hsqldb:hsql://localhost/";
String uid = "SA";
String pwd = "";
Connection con = null;
try {
TaskModel model = new TaskModel();
String catName;
Class.forName(driver);
con = DriverManager.getConnection(url, uid, pwd);
Statement stmt = con.createStatement();
while (ch1 < 6) {
System.out.println("");
System.out.println("Press 1 to create category");
System.out.println("Press 2 to load category");
System.out.println("Press 3 to list pending tasks");
System.out.println("Press 4 to search a category");
System.out.println("Press 5 to remove a category");
System.out.println("Press 6 to exit");
ch1 = sc1.nextInt();
switch (ch1) {
case 1:
System.out.println("Enter category name");
catName = sc1.next();
// input validations!
while (!validateString(catName)) {
System.out.println("No special characters and spaces");
catName = sc1.next();
}
if (model.isCatPresent(catName)) {
System.out.println("category already present. try loading it instead!!!");
autoGoBack = true;
}
if (autoGoBack == false) {
while (ch2 != 2) {
System.out.println("Press 1 to add a task");
System.out.println("Press 2 to go back");
ch2 = sc1.nextInt();
switch (ch2) {
case 1:
System.out.println("adding task...");
System.out.println("...");
System.out.println("...");
System.out.println("...");
System.out.println("Enter task name");
String tName = sc2.nextLine();
while (!validateString(tName)) {
System.out.println("cannot remain blank and cannot contain only spaces");
tName = sc2.nextLine();
}
System.out.println("Enter task description");
String tDesc = sc2.nextLine();
System.out.println("Enter task end date");
String endDate = sc2.nextLine();
SimpleDateFormat sf = new SimpleDateFormat("dd/MM/yyyy");
Date dt = sf.parse(endDate);
TaskBean obj = new TaskBean(tName, tDesc, dt);
model.add(obj);
String msg = model.addTask(obj, catName);
if (msg.equals("success")) {
System.out.println("Task added successfully!");
break; // not sure if this is required
} else System.out.println("Message:" + msg);
break;
// adding task ends here
default:
System.out.println("enter correct input!");
break;
case 2:
System.out.println("going back...");
break;
}
// switch ch2 ends here
}
// while loop for ch2 ends here
} // autoGoBack ends here
autoGoBack = false;
break;
case 4:
System.out.println("enter the name of category to search");
catName = sc1.next();
str = model.search(catName);
System.out.println(str);
break;
case 2:
System.out.println("list of categories already created");
categoryList = model.loadCat();
for (int i = 0; i < categoryList.length; i++) System.out.println(categoryList[i]);
System.out.println("");
System.out.println("");
System.out.println("Enter a name of the category listed above");
catName = sc1.next();
if (!model.isCatPresent(catName)) {
System.out.println("category not present");
break;
} else {
label:
while (ch3 <= 7) {
System.out.println("Press 1 to add a task");
System.out.println("Press 2 to list tasks");
System.out.println("Press 3 to search");
System.out.println("Press 4 to get details of the task");
System.out.println("Press 5 to update a task");
System.out.println("Press 6 to delete a task");
System.out.println("Press 7 to go back");
int ch4 = sc1.nextInt();
ArrayList<TaskBean> al;
int flag;
switch (ch4) {
case 1:
System.out.println("adding task...");
System.out.println("...");
System.out.println("...");
System.out.println("...");
System.out.println("Enter task name");
String tName = sc2.nextLine();
while (!validateString(tName)) {
System.out.println("cannot remain blank and cannot contain only spaces");
tName = sc2.nextLine();
}
System.out.println("Enter task description");
String tDesc = sc2.nextLine();
System.out.println("Enter task end date");
String endDate = sc2.nextLine();
SimpleDateFormat sf = new SimpleDateFormat("dd/MM/yyyy");
Date dt = sf.parse(endDate);
TaskBean obj = new TaskBean(tName, tDesc, dt);
model.add(obj);
String msg = model.addTask(obj, catName);
if (msg.equals("success")) {
System.out.println("Task added successfully!");
} else System.out.println("Message:" + msg);
break;
// adding task ends here
case 2:
System.out.println("");
System.out.println("");
System.out.println("list of tasks in the category...");
al = model.listTasks(catName);
/*for(int i=0;i<al.size();i++)
{
TaskBean t = al.get(i);
System.out.println(t.getName());
}*/
System.out.println(
"total number of tasks in the category............" + al.size());
for (TaskBean tt : al) {
System.out.println(tt.getName());
}
break;
// listing of all tasks within the category ends here
case 3:
System.out.println("");
System.out.println("");
System.out.println("");
System.out.println("enter the name of task to search");
String ch5 = sc2.nextLine();
al = model.listTasks(catName);
int flag2 = 0;
for (TaskBean tt : al) {
if (!ch5.equals(tt.getName())) continue;
else flag2 = 1;
break;
}
if (flag2 == 0) System.out.println("task not present");
else System.out.println("task present");
break;
// searching a task ends here
case 4:
System.out.println("");
System.out.println("");
System.out.println("");
System.out.println("enter the name of task");
String ch6 = sc2.nextLine();
al = model.listTasks(catName);
flag = 0;
TaskBean t = null;
for (TaskBean tt : al) {
if (!ch6.equals(tt.getName())) continue;
else flag = 1;
t = tt;
break;
}
if (flag == 0) System.out.println("task not present");
else {
System.out.println("task name");
System.out.println(t.getName());
System.out.println("");
System.out.println("");
System.out.println("");
System.out.println("task description");
System.out.println(t.getDesc());
System.out.println("");
System.out.println("");
System.out.println("");
System.out.println("end date for the task");
System.out.println(t.getEndDt());
}
break;
case 5:
System.out.println("Enter name of task to be updated");
String ch8 = sc2.nextLine();
al = model.listTasks(catName);
int flag1 = 0;
for (TaskBean tt : al) {
if (!ch8.equals(tt.getName())) continue;
else flag1 = 1;
break;
}
if (flag1 == 0) System.out.println("task not present");
else {
System.out.println("Enter new name of task");
String ch9 = sc2.nextLine();
while (!validateString(ch9)) {
System.out.println("cannot remain blank and cannot contain only spaces");
ch9 = sc2.nextLine();
}
System.out.println("Enter new description");
String ch10 = sc2.nextLine();
System.out.println("Enter End Date");
String ch11 = sc2.nextLine();
SimpleDateFormat sf1 = new SimpleDateFormat("dd/MM/yyyy");
Date dt1 = sf1.parse(ch11);
ArrayList<String> xyz = model.updateTask(catName, ch8, ch9, ch10, dt1);
model.reWrite(catName, xyz);
System.out.println("successfully updated");
System.out.println("");
System.out.println("");
System.out.println("");
}
break;
// end of getting details
case 6:
System.out.println("Enter name of task to be deleted");
String ch7 = sc2.next();
al = model.listTasks(catName);
int flag3 = 0;
for (TaskBean tt : al) {
if (!ch7.equals(tt.getName())) continue;
else flag3 = 1;
break;
}
if (flag3 == 0) System.out.println("task not present");
else {
ArrayList<String> abc = model.deleteTask(catName, ch7);
model.reWrite(catName, abc);
System.out.println("Task successfully removed");
System.out.println("");
System.out.println("");
System.out.println("");
}
break;
case 7:
System.out.println("going back...");
break label;
default:
System.out.println("option not supported yet!");
break;
}
// switch for ch4 ends here
} // while for ch3!6 ends here
}
break;
// end of loading category
default:
System.out.println("Option not supported...yet!");
break;
case 6:
System.out.println("closing task manager...");
break;
case 5:
System.out.println("enter the name of category");
String ch6 = sc2.nextLine();
str = model.search(ch6);
System.out.println(str);
if (str.equals("Not found")) System.out.println(str);
else model.deleteFile(ch6);
System.out.println("category removed!");
break;
case 3:
System.out.println("list of pending tasks");
ArrayList<TaskBean> al = model.listPendingTasks();
/*for(int i=0;i<al.size();i++)
{
TaskBean t = al.get(i);
System.out.println(t.getName());
}*/
System.out.println("total number of pending tasks............" + al.size());
for (TaskBean tt : al) {
System.out.println(tt.getName());
}
}
}
} catch (Exception e) {
System.out.println("oops! something went wrong!");
e.printStackTrace();
}
}
