/**
* Gets the activities.
*
* @param userId the user id
* @param token the token
* @param activityIds the activity ids
* @return the activities
*/
private List<Activity> getActivities(
UserId userId, Set<String> activityIds, SecurityToken token) {
StringBuilder sb = new StringBuilder();
sb.append(ActivityDb.JPQL_FINDBY_ACTIVITIES);
List<String> paramList = SPIUtils.toList(activityIds);
String uid = SPIUtils.getUserList(userId, token);
int lastPos = JPQLUtils.addInClause(sb, "a", "id", 1, paramList.size());
sb.append(" and a.userid = ?").append(lastPos);
lastPos++;
paramList.add(uid);
EntityManager entityManager = getEntityManager();
List<Activity> a = JPQLUtils.getListQuery(entityManager, sb.toString(), paramList, null);
entityManager.close();
return a;
}
/* (non-Javadoc)
* @see org.apache.shindig.social.opensocial.spi.ActivityService#getActivities(java.util.Set, org.apache.shindig.social.opensocial.spi.GroupId, java.lang.String, java.util.Set, org.apache.shindig.social.opensocial.spi.CollectionOptions, org.apache.shindig.auth.SecurityToken)
*/
public Future<RestfulCollection<Activity>> getActivities(
Set<UserId> userIds,
GroupId groupId,
String appId,
Set<String> fields,
CollectionOptions options,
SecurityToken token)
throws ProtocolException {
List<Activity> plist = null;
int lastPos = 1;
StringBuilder sb = new StringBuilder();
// sanitize the list to get the uid's and remove duplicates
List<String> paramList = SPIUtils.getUserList(userIds, token);
// select the group Id as this will drive the query
switch (groupId.getType()) {
case all:
// select all contacts activity
sb.append(ActivityDb.JPQL_FINDACTIVITY);
JPQLUtils.addInClause(sb, "a", "userId", lastPos, paramList.size());
sb.append(" or a.userId in (select m.person.id from GroupDb g join g.members m where ");
lastPos = JPQLUtils.addInClause(sb, "g.owner", "id", lastPos, paramList.size());
sb.append(")");
break;
case friends:
// select all friends (subset of contacts)
sb.append(ActivityDb.JPQL_FINDACTIVITY_BY_FRIENDS);
lastPos = JPQLUtils.addInClause(sb, "p", "id", lastPos, paramList.size());
sb.append(")) ");
// TODO Group by doesn't work in HSQLDB or Derby - causes a "Not in aggregate function or
// group by clause" jdbc exception
// sb.append(" group by p ");
break;
case groupId:
sb.append(ActivityDb.JPQL_FINDACTIVITY_BY_GROUP);
paramList.add(groupId.getGroupId());
lastPos += 2;
break;
case deleted:
// ???
break;
case self:
// select self
sb.append(ActivityDb.JPQL_FINDACTIVITY);
lastPos = JPQLUtils.addInClause(sb, "a", "userId", lastPos, paramList.size());
break;
default:
throw new ProtocolException(HttpServletResponse.SC_BAD_REQUEST, "Group ID not recognized");
}
JPQLUtils.addFilterClause(sb, ActivityDb.FILTER_CAPABILITY, options, paramList);
EntityManager entityManager = getEntityManager();
// Get total results, that is count the total number of rows for this query
Long totalResults = JPQLUtils.getTotalResults(entityManager, sb.toString(), paramList);
if (options == null) options = new CollectionOptions();
// Execute paginated query
if (totalResults > 0) {
JPQLUtils.addOrderClause(sb, options, "a");
plist = JPQLUtils.getListQuery(entityManager, sb.toString(), paramList, options);
}
entityManager.close();
if (plist == null) {
plist = new ArrayList<Activity>();
}
// all of the above could equally have been placed into a thread to overlay the
// db wait times.
RestfulCollection<Activity> restCollection =
new RestfulCollection<Activity>(
plist, options.getFirst(), totalResults.intValue(), options.getMax());
return ImmediateFuture.newInstance(restCollection);
}
