private static IProblemLocation[] getHandledProblems(
IProblemLocation[] locations, ContributedProcessorDescriptor processor) {
// implementation tries to avoid creating a new array
boolean allHandled = true;
List<IProblemLocation> res = null;
for (int i = 0; i < locations.length; i++) {
IProblemLocation curr = locations[i];
if (processor.canHandleMarkerType(curr.getMarkerType())) {
if (!allHandled) { // first handled problem
if (res == null) {
res = Lists.newArrayListWithCapacity(locations.length - i);
}
res.add(curr);
}
} else if (allHandled) {
if (i > 0) { // first non handled problem
res = Lists.newArrayListWithCapacity(locations.length - i);
for (int k = 0; k < i; k++) {
res.add(locations[k]);
}
}
allHandled = false;
}
}
if (allHandled) {
return locations;
}
if (res == null) {
return null;
}
return res.toArray(new IProblemLocation[res.size()]);
}
