/**
* Title: StanfordMaxEnt<p>
* Description: A Maximum Entropy Toolkit<p>
* Copyright: The Board of Trustees of The Leland Stanford Junior University
* Company: Stanford University<p>
*/
package edu.stanford.nlp.tagger.maxent;
import edu.stanford.nlp.ling.WordTag;
import java.util.*;
/** A simple class that maintains a list of WordTag pairs which are interned
* as they are added. This stores a tagged corpus.
*
* @author Kristina Toutanova
* @version 1.0
*/
public class PairsHolder {
// todo: In Java 5+, just make this class an ArrayList<WordTag> and be done with it?? Or actually, probably a PaddedList. Or need a WindowedList?
private final ArrayList<WordTag> arr = new ArrayList<WordTag>();
public PairsHolder() {}
// todo: This method seems crazy. Can't we either just do nothing or using ensureCapacity()?
public void setSize(int s) {
while (arr.size() < s) {
arr.add(new WordTag(null,"NN")); // todo: remove NN. NA okay?
}
}
public int getSize() {
return arr.size();
}
void clear() {
arr.clear();
}
/* -----------------
CDM May 2008. This method was unused. But it also has a bug in it
in that the equals() test can never succeed (Integer vs WordTag).
So I'm commenting it out for now....
public int[] getIndexes(Object wordtag) {
ArrayList<Integer> arr1 = new ArrayList<Integer>();
int l = wordtag.hashCode();
Integer lO = Integer.valueOf(l);
for (int i = 0; i < arrNum.size(); i++) {
if (arrNum.get(i).equals(lO)) {
arr1.add(Integer.valueOf(i));
}
}
int[] ret = new int[arr1.size()];
for (int i = 0; i < arr1.size(); i++) {
ret[i] = arr1.get(i).intValue();
}
return ret;
}
*/
void add(WordTag wordtag) {
arr.add(wordtag);
}
void setWord(int pos, String word) {
arr.get(pos).setWord(word);
}
void setTag(int pos, String tag) {
arr.get(pos).setTag(tag);
}
/* Methods unused. Commented for now:
public void save(String filename) {
try {
DataOutputStream rf = IOUtils.getDataOutputStream(filename);
int sz = arr.size();
rf.writeInt(sz);
for (int i = 0; i < sz; i++) {
//save the wordtag in the file
WordTag wT = arr.get(i);
rf.writeUTF(wT.word());
rf.writeUTF(wT.tag());
}
rf.close();
} catch (Exception e) {
e.printStackTrace();
}
}
public void read(String filename) {
try {
InDataStreamFile rf = new InDataStreamFile(filename);
int len = rf.readInt();
for (int i = 0; i < len; i++) {
WordTag wT = new WordTag();
wT.setWord(rf.readUTF());
wT.setTag(rf.readUTF());
add(wT);
}
rf.close();
} catch (Exception e) {
e.printStackTrace();
}
}
*/
String getTag(int position) {
return arr.get(position).tag();
}
String getWord(int position) {
return arr.get(position).word();
}
String getWord(History h, int position) {
if (((h.current + position) >= h.start) && (h.current + position <= h.end)) {
return arr.get(h.current + position).word();
} else {
return "NA";
}
}
String getTag(History h, int position) {
if (((h.current + position) >= h.start) && (h.current + position <= h.end)) {
return arr.get(h.current + position).tag();
} else {
return "NA";
}
}
}