/** preprocessDataset Task 1 */
private void preprocessDataset() {
BufferedReader br = null;
FileOutputStream fos = null;
PrintStream ps = null;
try {
fos = new FileOutputStream(Constants.preprocessFile);
ps = new PrintStream(fos);
} catch (FileNotFoundException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
String line = "";
try {
br = new BufferedReader(new FileReader(Constants.bgpdata));
while ((line = br.readLine()) != null) { // && index < 5
if (line.contains("{") || line.contains("}")) {
// System.out.println(line);
} else {
String ASString = line.substring(Constants.bpgdataPrefix.length());
String[] ASes = ASString.split(" ");
if (ASes.length == 0 || ASString.equals("")) {
continue;
}
List<Integer> asKeysInpath = new ArrayList<Integer>();
for (int i = 0; i < ASes.length; i++) {
Integer asKey = Integer.parseInt(ASes[i]);
if (asKeysInpath.indexOf(asKey) < 0) {
asKeysInpath.add(asKey);
}
if (!asMap.containsKey(asKey)) {
AS newAs = new AS(asKey.intValue());
asMap.put(asKey, newAs);
originAsMap.put(asKey, newAs);
}
}
AS[] asesInpath = new AS[asKeysInpath.size()];
for (int i = 0; i < asKeysInpath.size(); i++) {
asesInpath[i] = asMap.get(asKeysInpath.get(i));
}
ASPath path = new ASPath(asesInpath);
// System.out.println("path:"+path.toString());
if (!asPathMap.containsKey(path.toString())) {
asPathMap.put(path.toString(), path);
ps.println(path.toString());
}
}
// String[] orderline = line.split(",");
}
System.out.println("Number of ASes: " + asMap.size());
ps.println("Number of ASes: " + asMap.size());
System.out.println("Number of AS paths:" + asPathMap.size());
ps.println("Number of AS paths:" + asPathMap.size());
// System.out.println("duplicated aspathes:"+index);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (br != null) {
try {
br.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (fos != null) {
try {
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
