@Override
public Collection<Task> loadTasks() {
Collection<Task> loadedTasks = null;
try {
String path = config.getFileName();
if (path == null) {
log.error("Cannot get path to taskFile. Will halt.");
throw new BadConfigException("Cannot get path to taskFile. Will halt.");
}
if (new File(path).exists()) {
Boolean valid = Tools.valXML(path);
if (valid) {
try {
SAXBuilder builder = new SAXBuilder();
doc = builder.build(config.getFileName());
Iterator it = doc.getRootElement().getChildren("task").iterator();
loadedTasks = new TreeSet<Task>(taskComparator);
while (it.hasNext()) {
Element element = (Element) it.next();
String id = element.getAttributeValue("id");
String name = element.getChildText("name");
String description = element.getChildText("description");
String date = element.getChildText("date");
Task task = new Task(id, name, description, sdf.parse(date));
loadedTasks.add(task);
}
} catch (JDOMException ex) {
log.error("Error in loading tasks from xml ", ex);
throw new IOException("Error in loading tasks from xml ", ex);
} catch (ParseException ex) {
log.error("Error in xml parsing.");
throw new IOException("Error in xml parsing.", ex);
}
} else {
log.info("XML File is not valid. Check it.");
throw new InvalidFileException("XML File is not valid. Check it.");
}
} else {
saveTask(null);
}
} catch (Exception ex) {
log.error("Tasks wasn't loaded, IO or XML errors occured", ex);
throw new InternalControllerException("Tasks wasn't loaded, IO or XML errors occured", ex);
}
return loadedTasks;
}
