Use gazetteer as dictionary within JAPE rule in GATE - gate

Question

I have this scenario:
I have a list of key-value pairs in the form of (for instance)
000.000.0001.000 VALUE1
000.000.0002.000 VALUE2
...
000.010.0001.000 VALUE254
The documents presents the information using a table as follows:
SK1 | SK2 | SK3 | SK4
000 | 000 | 0001 | 000
The problem is that when processing this table, it turns to
000
000
0001
000
So a gazetteer wont match it. I figured constructing a JAPE rule to match this, and it works properly matching the 4 key parts.
Now I would need to load the gazetteer from withing my JAPE rule in a structure (for instance, a hashmap) so I can lookup the concatenation of these 4 key parts and get (for example) "VALUE1". Is it possible to load a gazetteer from within a JAPE file and use it as a dictionary?
Is there any other (better) way to do what I need to?
Thanks a lot.

Answer 1

I found the solution to my problem using GazetteerList class with the next snippet:
//Gazetteer object
GazetteerList gazList = new GazetteerList() ;
//Object to map gazetteers entries and their positions in the list
//i.e.: 000.000.0001.000 -> 1,3
//This is because, in my case, the same key
//can appear more than once in the gazetteer
HashMap<String, ArrayList<Integer>> keyMap =
new HashMap<String, ArrayList<Integer>>();
try{
gazList.setMode(GazetteerList.LIST_MODE);
gazList.setSeparator("\t");
gazList.setURL(
new URL("file:/path/to/gazetteer/gazetteer_list_file.lst"));
gazList.load();
//Here is the mapping between the keys and their position
int pos = 0;
for( GazetteerNode gazNode : gazList){
if(keyMap.get(gazNode.getEntry()) == null)
keyMap.put(gazNode.getEntry(), new ArrayList<Integer>());
keyMap.get(gazNode.getEntry()).add(pos);
pos++;
}
} catch (MalformedURLException ex){
System.out.println(ex);
} catch (ResourceInstantiationException ex){
System.out.println(ex);
}
Then, you can lookup the matched key in the map and get its features:
for(Integer index : keyMap.get(key)){
FeatureMap fmap = toFeatureMap(gazList.get(index).getFeatureMap());
fmap.put("additionalFeature", "feature");
outputAS.add(startOffset, endOffset, "Lookup", fmap);
}