@Override
public void received(IResource resource, ChangeType change) {
Trace.debug("Watch received change in {0} state\n{1}", state, resource.toJson(false));
if (State.CONNECTED == state.get()) {
IResource newItem = null;
IResource oldItem = null;
int index = resources.indexOf(resource);
if (ChangeType.ADDED.equals(change)) {
resources.add(resource);
newItem = resource;
} else if (ChangeType.DELETED.equals(change)) {
oldItem = index > NOT_FOUND ? resources.remove(index) : resource;
} else if (ChangeType.MODIFIED.equals(change)) {
if (index > NOT_FOUND) {
oldItem = resources.remove(index);
}
resources.add(resource);
newItem = resource;
}
ConnectionsRegistrySingleton.getInstance()
.fireConnectionChanged(conn, ConnectionProperties.PROPERTY_RESOURCE, oldItem, newItem);
}
}
/**
* Get List<NCubeInfoDto> of n-cube record DTOs for the given ApplicationID (branch only). If
* using For any cube record loaded, for which there is no entry in the app's cube cache, an entry
* is added mapping the cube name to the cube record (NCubeInfoDto). This will be replaced by an
* NCube if more than the name is required. one (1) character. This is universal whether using a
* SQL perister or Mongo persister.
*/
public static List<NCubeInfoDto> getBranchChangesFromDatabase(ApplicationID appId) {
validateAppId(appId);
if (appId.getBranch().equals(ApplicationID.HEAD)) {
throw new IllegalArgumentException("Cannot get branch changes from HEAD");
}
ApplicationID headAppId = appId.asHead();
Map<String, NCubeInfoDto> headMap = new TreeMap<>();
Map<String, Object> searchChangedRecordOptions = new HashMap<>();
searchChangedRecordOptions.put(SEARCH_CHANGED_RECORDS_ONLY, true);
List<NCubeInfoDto> branchList = search(appId, null, null, searchChangedRecordOptions);
Map<String, Object> options = new HashMap<>();
options.put(SEARCH_ACTIVE_RECORDS_ONLY, false);
List<NCubeInfoDto> headList = search(headAppId, null, null, options);
List<NCubeInfoDto> list = new ArrayList<>();
// build map of head objects for reference.
for (NCubeInfoDto info : headList) {
headMap.put(info.name, info);
}
// Loop through changed (added, deleted, created, restored, updated) records
for (NCubeInfoDto info : branchList) {
long revision = (long) Converter.convert(info.revision, long.class);
NCubeInfoDto head = headMap.get(info.name);
if (head == null) {
if (revision >= 0) {
info.changeType = ChangeType.CREATED.getCode();
list.add(info);
}
} else if (info.headSha1 == null) { // we created this guy locally
// someone added this one to the head already
info.changeType = ChangeType.CONFLICT.getCode();
list.add(info);
} else {
if (StringUtilities.equalsIgnoreCase(info.headSha1, head.sha1)) {
if (StringUtilities.equalsIgnoreCase(info.sha1, info.headSha1)) {
// only net change could be revision deleted or restored. check head.
long headRev = Long.parseLong(head.revision);
if (headRev < 0 != revision < 0) {
if (revision < 0) {
info.changeType = ChangeType.DELETED.getCode();
} else {
info.changeType = ChangeType.RESTORED.getCode();
}
list.add(info);
}
} else {
info.changeType = ChangeType.UPDATED.getCode();
list.add(info);
}
} else {
info.changeType = ChangeType.CONFLICT.getCode();
list.add(info);
}
}
}
cacheCubes(appId, list);
return list;
}