private void delete(HttpServletRequest request, HttpServletResponse response) throws IOException {
String id = null;
Integer idIndex = 0;
final AccessLevelManager layerManager =
new AccessLevelManager(HibernateUtil.getCurrentSession());
boolean rollback = false;
while ((id = request.getParameter("ids[" + idIndex + "][id]")) != null) {
try {
layerManager.delete(id);
} catch (ObjectNotFoundException e) {
response.getWriter().print(NOTFOUND_MESSAGE);
rollback = true;
break;
} catch (RuntimeException e) {
rollback = true;
response.getWriter().print(ERROR_MESSAGE);
break;
} finally {
idIndex++;
}
}
if (rollback == true) {
HibernateUtil.getCurrentSession().getTransaction().rollback();
} else {
response.getWriter().print(OK_MESSAGE);
}
response.getWriter().flush();
}
public AccessLevel retrieveObjectFromRequest(HttpServletRequest request) {
String name = request.getParameter("name");
if (name == null || name.equals("")) {
throw new RuntimeException("No name attribute specified");
}
final AccessLevel accessLevel = AccessLevel.makeAccessLevel(name);
String layerWmsId;
int layerIndex = 0;
final LayerManager layerManager = new LayerManager(HibernateUtil.getCurrentSession());
while ((layerWmsId = request.getParameter("layers[" + layerIndex + "][wmsId]")) != null) {
if (layerWmsId.equals("")) {
throw new RuntimeException("");
}
try {
final Layer layer = layerManager.getById(layerWmsId);
accessLevel.addLayer(Layer.makeLayer(layerWmsId, layerWmsId));
} catch (HibernateException e) {
throw new RuntimeException("No layer with the specified id");
} catch (LayerRepetitionException e) {
throw new RuntimeException("Repeated layer to add");
}
layerIndex += 1;
}
return accessLevel;
}
private void update(HttpServletRequest request, HttpServletResponse response) throws IOException {
final AccessLevelManager accessLevelManager =
new AccessLevelManager(HibernateUtil.getCurrentSession());
try {
AccessLevel accessLevel = this.retrieveObjectFromRequest(request);
accessLevelManager.update(accessLevel);
response.getWriter().print(OK_MESSAGE);
} catch (ObjectNotFoundException e) {
response.getWriter().print(NOTFOUND_MESSAGE);
} catch (RuntimeException e) {
response.getWriter().print(ERROR_MESSAGE);
} finally {
response.getWriter().flush();
}
}
private void readAll(HttpServletRequest request, HttpServletResponse response)
throws IOException {
final AccessLevelManager accessLevelManager =
new AccessLevelManager(HibernateUtil.getCurrentSession());
final List<AccessLevel> accessLevels = accessLevelManager.readAll();
JSONSerializer serializer = new JSONSerializer();
final StringBuilder jsonLayersBuilder = new StringBuilder();
serializer
.rootName("objects")
.include("layers")
.exclude("*.class")
.serialize(accessLevels, jsonLayersBuilder);
response.setContentType("application/json");
response.getWriter().println(jsonLayersBuilder.toString());
response.getWriter().flush();
}
private void create(HttpServletRequest request, HttpServletResponse response) throws IOException {
final String name = request.getParameter("name");
if (name != null) {
final AccessLevelManager accessLevelManager =
new AccessLevelManager(HibernateUtil.getCurrentSession());
try {
AccessLevel accessLevel = this.retrieveObjectFromRequest(request);
accessLevelManager.create(accessLevel);
response.getWriter().print(OK_MESSAGE);
} catch (ObjectDuplicateException e) {
response.getWriter().print(DUPLICATE_MESSAGE);
} catch (RollbackException e) {
response.getWriter().print(ERROR_MESSAGE);
} finally {
response.getWriter().flush();
}
}
}