CONLLReader04.java
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package is2.io;
import is2.data.Instances;
import is2.data.SentenceData09;
import is2.util.DB;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
/**
* This class reads files in the CONLL-08 and CONLL-09 format.
*
* @author Bernd Bohnet
*/
public class CONLLReader04 {
private static final String US = "_";
private static final String REGEX = "\t";
public static final String STRING = "*";
public static final String PIPE = "\\|";
public static final String NO_TYPE = "<no-type>";
public static final String ROOT_POS = "<root-POS>";
public static final String ROOT_LEMMA = "<root-LEMMA>";
public static final String ROOT = "<root>";
public static final String EMPTY_FEAT = "<ef>";
private static final String NUMBER = "[0-9]+|[0-9]+\\.[0-9]+|[0-9]+[0-9,]+";
private static final String NUM = "<num>";
private BufferedReader inputReader;
public static final int TASK08=8;
public static final int TASK09=9;
public static boolean normalizeOn =true;
private int lineNumber = 0;
public CONLLReader04(){}
public CONLLReader04(String file){
lineNumber=0;
try {
inputReader = new BufferedReader(new InputStreamReader(new FileInputStream(file),"UTF-8"),32768); //,"UTF-8"
} catch (Exception e) {
e.printStackTrace();
}
}
public CONLLReader04(String file, int task){
this(file);
}
public void startReading(String file ){
lineNumber=0;
try {
inputReader = new BufferedReader(new InputStreamReader(new FileInputStream(file),"UTF-8"),32768);
} catch (Exception e) {
e.printStackTrace();
}
}
/**i.forms[heads[l]-1]+" "+rel+" "+
* Read a instance
* @return a instance
* @throws Exception
*/
public SentenceData09 getNext() throws Exception {
try {
ArrayList<String[]> lineList = new ArrayList<String[]>();
String line = inputReader.readLine();
while(line !=null && line.length()<2) {
line = inputReader.readLine();
lineNumber++;
System.out.println("skip empty line at line "+lineNumber);
}
while (line != null && line.length()!=0 && !line.startsWith(STRING) &&!line.startsWith(REGEX)) {
lineList.add(line.split(REGEX));
line = inputReader.readLine();
lineNumber++;
}
int length = lineList.size();
if(length == 0) {
inputReader.close();
return null;
}
SentenceData09 it = new SentenceData09();
// column content
// 1 id
// 2 form
// 3 lemma
// 4 cpos-tag
// 5 pos-tog
// 6 feats
// 7 head
// 8 deprel
it.forms = new String[length+1];
it.plemmas = new String[length+1];
it.gpos = new String[length+1];
it.labels = new String[length+1];
it.heads = new int[length+1];
it.pheads = new int[length+1];
it.plabels = new String[length+1];
it.ppos = new String[length+1];
it.lemmas = new String[length+1];
it.fillp = new String[length+1];
it.feats = new String[length+1][];
it.ofeats = new String[length+1];
it.pfeats = new String[length+1];
it.forms[0] = ROOT;
it.plemmas[0] = ROOT_LEMMA;
it.fillp[0] = "N";
it.lemmas[0] = ROOT_LEMMA;
it.gpos[0] = ROOT_POS;
it.ppos[0] = ROOT_POS;
it.labels[0] = NO_TYPE;
it.heads[0] = -1;
it.plabels[0] = NO_TYPE;
it.pheads[0] = -1;
it.ofeats[0] = NO_TYPE;
// root is 0 therefore start with 1
for(int i = 1; i <= length; i++) {
String[] info = lineList.get(i-1);
it.forms[i] = info[0]; //normalize(
it.lemmas[i] = "_";
it.plemmas[i] ="_";
// 3 cpos
it.gpos[i] = info[1];
it.ppos[i] = info[1];
it.ofeats[i]="_";
it.feats[i]=null;
// it.feats[i] =info[5].split(PIPE);
it.pfeats[i] = "_";
if (info[2].equals(US)) it.heads[i]=-1;
else it.heads[i] = Integer.parseInt(info[2]);// head
it.labels[i] = info[3];
}
return it;
} catch(Exception e) {
System.out.println("\n!!! Error in input file at line : "+lineNumber+" "+e.toString());
e.printStackTrace();
throw new Exception();
// return null;
}
}
/**
* Read a instance an store it in a compressed format
* @param is
* @return
* @throws IOException
*/
final public SentenceData09 getNext(Instances is) throws Exception {
SentenceData09 it = getNext();
if (is !=null) insert(is,it);
return it;
}
final public boolean insert(Instances is, SentenceData09 it) throws IOException {
try {
if(it == null) {
inputReader.close();
return false;
}
int i= is.createInstance09(it.length());
for(int p = 0; p < it.length(); p++) {
is.setForm(i, p, normalize(it.forms[p]));
is.setGPos(i, p, it.gpos[p]);
if (it.ppos[p]==null||it.ppos[p].equals(US)) {
is.setPPoss(i, p, it.gpos[p]);
} else is.setPPoss(i, p, it.ppos[p]);
if (it.plemmas[p]==null ||it.plemmas[p].equals(US)) {
is.setLemma(i, p, normalize(it.forms[p]));
} else is.setLemma(i, p, normalize(it.plemmas[p]));
is.setFeats(i,p,it.feats[p]);
is.setFeature(i,p,it.ofeats[p]);
is.setRel(i,p,it.labels[p]);
if (it.plabels!=null) is.setPRel(i,p,it.plabels[p]);
is.setHead(i,p,it.heads[p]);
if (it.pheads!=null) is.setPHead(i,p,it.pheads[p]);
if (it.fillp!=null && it.fillp[p]!=null && it.fillp[p].startsWith("Y")) is.pfill[i].set(p);
else is.pfill[i].clear(p);
}
if (is.createSem(i,it)) {
DB.println("count "+i+" len "+it.length());
DB.println(it.printSem());
}
} catch(Exception e ){
DB.println("head "+it);
e.printStackTrace();
}
return true;
}
public static String normalize (String s) {
if (!normalizeOn) return s;
if(s.matches(NUMBER)) return NUM;
return s;
}
}