/**
* @throws Exception
* @see de.fhg.fokus.cm.service.ComplaintService#getComplaint(java.lang.String)
*/
private Complaint getComplaint(Long complaintId, boolean withoutCRP) throws Exception {
final EntityManager entityManager = createEntityManager();
final Complaint complaint = entityManager.find(Complaint.class, complaintId);
logger.info("complaint [" + complaint.getId() + "] selected"); // $NON-NLS-1$ //$NON-NLS-2$
if (withoutCRP) return refactorComplaint(complaint);
return complaint;
}
private void setAvgRating(Complaint c) {
Float avgRating = 0.0f;
for (Rating r : c.getRatings().getRatings()) {
avgRating += r.getValue();
c.setAverageRating(avgRating / c.getRatings().getRatings().size());
}
}
@Override
public Comment deleteComplaintComment(Long complaintId, Long objectId) throws Exception {
final EntityManager em = createEntityManager();
Complaint c;
Comment o = null;
try {
c = em.find(Complaint.class, complaintId);
o = em.find(Comment.class, objectId);
c.getComments().getComments().remove(o);
em.remove(o);
return o;
} finally {
// //em.close();
}
}
@Override
public Photo deleteComplaintPhoto(Long complaintId, Long objectId) throws Exception {
final EntityManager em = createEntityManager();
em.getTransaction().begin();
Complaint c;
Photo o = null;
try {
c = em.find(Complaint.class, complaintId);
o = em.find(Photo.class, objectId);
c.getPhotos().getPhotos().remove(o);
em.remove(o);
em.getTransaction().commit();
return o;
} finally {
// em.close();
}
}
/**
* @param complaintAbbr
* @return
* @throws Exception
*/
private String getOrderByClause(final String complaintAbbr, String orderBy, Boolean orderDesc)
throws Exception {
String ASC = "DESC";
if (orderDesc == null || orderDesc == false) ASC = "ASC";
if (orderBy == null || orderBy == "") orderBy = "id";
Complaint c = new Complaint();
c.getAverageRating();
if (orderBy.equals("id")
|| orderBy.equals("averageRating")
|| orderBy.equals("title")
|| orderBy.equals("description")
|| orderBy.equals("userId")
|| orderBy.equals("tags"))
return " ORDER BY " + complaintAbbr + "." + orderBy + " " + ASC; // $NON-NLS-1$ //$NON-NLS-2$
else throw new Exception("orderBy=" + orderBy + " is not allowed");
}
/**
* @throws Exception
* @see de.fhg.fokus.cm.service.ComplaintService#deleteComplaint(java.lang.String)
* @return null
*/
@Override
public Complaint deleteComplaint(Long complaintId) throws Exception {
EntityManager em = createEntityManager();
Complaint complaint;
try {
EntityTransaction tx = em.getTransaction();
tx.begin();
// TODO try to cascade the delete to comments, photos and ratings
complaint = em.find(Complaint.class, complaintId);
complaint.getComments().getComments().clear();
//
// try {
// List<Comment> list = complaint.getComments().getComments();
// for (Comment object : list)
// this.deleteComplaintComment(complaintId, object.getId());
// } catch (Exception e) {
// // no Comments, nothing to do
// }
// try {
// List<Photo> list = complaint.getPhotos().getPhotos();
// for (Photo object : list)
// this.deleteComplaintPhoto(complaintId, object.getId());
// } catch (Exception e) {
// // no Photos, nothing to do
// }
// try {
// List<Rating> list = complaint.getRatings().getRatings();
// for (Rating object : list)
// this.deleteComplaintRating(complaintId, object.getId());
// } catch (Exception e) {
// // no Ratings, nothing to do
// }
String deleteComplaint =
"DELETE " + Complaint.class.getName() + " c WHERE c.id = :complaintId";
em.createQuery(deleteComplaint).setParameter("complaintId", complaintId).executeUpdate();
logger.info("complaint [" + complaintId + "] deleted"); // $NON-NLS-1$ //$NON-NLS-2$
tx.commit();
} finally {
// em.close();
}
return null;
}
@Override
public Rating deleteComplaintRating(Long complaintId, Long objectId) throws Exception {
final EntityManager em = createEntityManager();
em.getTransaction().begin();
Complaint c;
Rating o = null;
try {
c = em.find(Complaint.class, complaintId);
o = em.find(Rating.class, objectId);
c.getRatings().getRatings().remove(o);
em.remove(o);
setAvgRating(c);
em.getTransaction().commit();
return o;
} finally {
// em.close();
}
}
@Override
public Photo addPhoto(Long complaintId, Photo photo) throws Exception {
final EntityManager em = createEntityManager();
try {
em.getTransaction().begin();
Complaint c = em.find(Complaint.class, complaintId);
photo.setId(0);
if (c.getPhotos() == null) c.setPhotos(new Complaint.Photos());
c.getPhotos().getPhotos().add(photo);
em.getTransaction().commit();
} catch (Exception e) {
// TODO
e.printStackTrace();
} finally {
// em.close();
}
return photo;
}
@Override
public Rating addRating(Long complaintId, Rating rating) throws Exception {
final EntityManager em = createEntityManager();
try {
em.getTransaction().begin();
Complaint c = em.find(Complaint.class, complaintId);
rating.setId(0);
if (c.getRatings() == null) c.setRatings(new Complaint.Ratings());
c.getRatings().getRatings().add(rating);
setAvgRating(c);
em.getTransaction().commit();
} catch (Exception e) {
// TODO
e.printStackTrace();
} finally {
// em.close();
}
return rating;
}
@Override
public Comment addComment(Long complaintId, Comment comment) throws Exception {
final EntityManager em = createEntityManager();
try {
em.getTransaction().begin();
Complaint c = em.find(Complaint.class, complaintId);
comment.setId(0);
if (c.getComments() == null) c.setComments(new Complaint.Comments());
c.getComments().getComments().add(comment);
em.getTransaction().commit();
} catch (Exception e) {
// TODO
e.printStackTrace();
} finally {
// em.close();
}
return comment;
}
@Override
public Complaint addComplaint(Complaint complaint) throws Exception {
final EntityManager em = createEntityManager();
try {
em.getTransaction().begin();
em.persist(complaint);
em.getTransaction().commit();
logger.debug("complaint [" + complaint.getId() + "] inserted"); // $NON-NLS-1$ //$NON-NLS-2$
} finally {
em.close();
}
return refactorComplaint(complaint);
}
@Override
public Ratings getRatings(Long complaintId, Integer limit, Integer offset, String userId)
throws Exception {
offset = ServiceHelper.checkOffset(offset);
Ratings ratings = new Ratings();
Complaint complaint = getComplaint(complaintId);
List<Rating> allRatings = complaint.getRatings().getRatings();
List<Rating> rl = allRatings;
if (userId != null) {
rl = new ArrayList<Rating>();
for (Rating rating : allRatings) {
if (userId.equals(rating.getUserId())) {
rl.add(rating);
}
}
}
Integer newLimit = ServiceHelper.calcLimit(offset, limit, rl.size());
ratings.setRatings(rl.subList(offset, offset + newLimit));
ratings.setOffset(offset);
ratings.setResult(newLimit);
ratings.setTotal(rl.size());
return ratings;
}
@Override
public Photos getPhotos(Long complaintId, Integer limit, Integer offset, String userId)
throws Exception {
offset = ServiceHelper.checkOffset(offset);
Photos photos = new Photos();
Complaint complaint = getComplaint(complaintId);
List<Photo> allPhotos = complaint.getPhotos().getPhotos();
List<Photo> rl = allPhotos;
if (userId != null) {
rl = new ArrayList<Photo>();
for (Photo photo : allPhotos) {
if (userId.equals(photo.getUserId())) {
rl.add(photo);
}
}
}
Integer newLimit = ServiceHelper.calcLimit(offset, limit, rl.size());
photos.setPhotos(rl.subList(offset, offset + newLimit));
photos.setOffset(offset);
photos.setResult(newLimit);
photos.setTotal(rl.size());
return photos;
}
@Override
public Comments getComments(Long complaintId, Integer limit, Integer offset, String userId)
throws Exception {
offset = ServiceHelper.checkOffset(offset);
Comments comments = new Comments();
Complaint complaint = getComplaint(complaintId);
List<Comment> allComments = complaint.getComments().getComments();
List<Comment> rl = allComments;
if (userId != null) {
rl = new ArrayList<Comment>();
for (Comment comment : allComments) {
if (userId.equals(comment.getUserId())) {
rl.add(comment);
}
}
}
Integer newLimit = ServiceHelper.calcLimit(offset, limit, rl.size());
comments.setComments(rl.subList(offset, offset + newLimit));
comments.setOffset(offset);
comments.setResult(newLimit);
comments.setTotal(rl.size());
return comments;
}
private Photo findPhoto(Complaint c, Long objectId) throws Exception {
String objectName = "object"; // $NON-NLS-1$
for (Photo o : c.getPhotos().getPhotos()) {
objectName = o.getClass().getSimpleName();
if (o.getId() == objectId) {
logger.debug(
objectName
+ " ["
+ objectId //$NON-NLS-1$
+ "] is attached to complaint ["
+ c.getId()
+ "]"); //$NON-NLS-1$ //$NON-NLS-2$
return o;
}
}
throw new Exception(
objectName
+ " ["
+ objectId //$NON-NLS-1$
+ "] is NOT attached to complaint ["
+ c.getId()
+ "]"); //$NON-NLS-1$ //$NON-NLS-2$
}
/**
* exact calculation
*
* @param c the Complaint
* @param radius radius of area
* @param latitude latitude of center of area
* @param longitude longitude of center of area
* @return true if complaint is in area
*/
@SuppressWarnings("unused")
private Boolean isComplaintInArea(Complaint c, Double radius, Double latitude, Double longitude) {
// http://www.kompf.de/gps/distcalc.html
final double EARTH_DIAMETER = 6378.388;
double lat1 = latitude.doubleValue();
double lon1 = longitude.doubleValue();
double lat2 = c.getGeolocation().getLatitude();
double lon2 = c.getGeolocation().getLongitude();
if (radius
> EARTH_DIAMETER
* Math.acos(
Math.sin(lat1) * Math.sin(lat2)
+ Math.cos(lat1) * Math.cos(lat2) * Math.cos(lon2 - lon1))) return true;
return false;
}
@Override
public Complaint updateComplaint(Complaint complaint) throws Exception {
final EntityManager em = createEntityManager();
Complaint updateComplaint;
try {
em.getTransaction().begin();
updateComplaint = em.find(Complaint.class, complaint.getId());
if (updateComplaint != null) {
// updating
updateComplaint.setAddress(complaint.getAddress());
updateComplaint.setAverageRating(complaint.getAverageRating());
updateComplaint.setCategory(complaint.getCategory());
updateComplaint.setComments(complaint.getComments());
updateComplaint.setCreationTime(complaint.getCreationTime());
updateComplaint.setDescription(complaint.getDescription());
updateComplaint.setGeolocation(complaint.getGeolocation());
updateComplaint.setPhotos(complaint.getPhotos());
updateComplaint.setRatings(complaint.getRatings());
updateComplaint.setStatus(complaint.getStatus());
updateComplaint.setTags(complaint.getTags());
updateComplaint.setTitle(complaint.getTitle());
updateComplaint.setUserId(complaint.getUserId());
em.merge(updateComplaint);
logger.debug("complaint [" + complaint.getId() + "] updated"); // $NON-NLS-1$ //$NON-NLS-2$
} else {
throw new Exception(
"complaint ["
+ complaint.getId() // $NON-NLS-1$
+ "] not found"); //$NON-NLS-1$
}
em.getTransaction().commit();
} finally {
em.close();
}
return refactorComplaint(updateComplaint);
}
/**
* sets properties comments, ratings and photos to null
*
* @param c the complete complaint
* @return the complaint without comments, ratings and photos
*/
private Complaint refactorComplaint(Complaint c) {
c.setComments(null);
c.setRatings(null);
c.setPhotos(null);
return c;
}
