public static Set<Integer> extract(String fileName, String word) throws IOException {
Set<Integer> ids = new HashSet<Integer>();
BufferedReader reader = new BufferedReader(new FileReader(fileName), 4 * 1024 * 1024);
String line = null;
int lineCount = 0;
System.out.println("Reading file...");
while ((line = reader.readLine()) != null) {
lineCount++;
if (lineCount % 2000 == 0) System.out.print(".");
if (lineCount % 100000 == 0) {
System.out.println(lineCount);
}
try {
if (!line.trim().startsWith("<row")) continue;
XMLInputFactory xmlInputFactory = XMLInputFactory.newInstance();
XMLEventReader xmlEventReader =
xmlInputFactory.createXMLEventReader(new StringReader(line));
while (xmlEventReader.hasNext()) {
XMLEvent xmlEvent = xmlEventReader.nextEvent();
if (xmlEvent.isStartElement()) {
StartElement startElement = xmlEvent.asStartElement();
if (startElement.getName().getLocalPart().equalsIgnoreCase("row")) {
int id = XMLUtil.getIntElement(startElement, "Id");
String title = XMLUtil.getStringElement(startElement, "Title");
if (title == null) {
title = "";
continue;
}
String tags = XMLUtil.getStringElement(startElement, "Tags");
if ((tags == null) || (tags.trim().length() == 0)) {
return null;
}
if (!SOUtil.hasJavaTag(tags)) continue;
if (title.contains(word)) {
ids.add(id);
}
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
return ids;
}
public static List<String> getAllCode(Set<Integer> ids, String filePath, int speedUp)
throws IOException, FactoryConfigurationError {
List<String> code = new ArrayList<String>();
BufferedReader reader = new BufferedReader(new FileReader(filePath), 4 * 1024 * 1024);
String line = null;
int lineCount = 0;
System.out.println("Reading file...");
int emptyPosts = 0;
int codeAdded = 0;
while ((line = reader.readLine()) != null) {
lineCount++;
if (lineCount % 2000 == 0) System.out.print(".");
if (lineCount % 100000 == 0) {
System.out.println(lineCount);
}
if ((speedUp > 0) && (lineCount % speedUp != 0)) continue;
try {
if (!line.trim().startsWith("<row")) continue;
XMLInputFactory xmlInputFactory = XMLInputFactory.newInstance();
XMLEventReader xmlEventReader =
xmlInputFactory.createXMLEventReader(new StringReader(line));
Set<String> tempSet = new HashSet<String>();
while (xmlEventReader.hasNext()) {
XMLEvent xmlEvent = xmlEventReader.nextEvent();
if (xmlEvent.isStartElement()) {
StartElement startElement = xmlEvent.asStartElement();
if (startElement.getName().getLocalPart().equalsIgnoreCase("row")) {
int id = XMLUtil.getIntElement(startElement, "Id");
int parentId = XMLUtil.getIntElement(startElement, "ParentId");
boolean add = false;
if (ids.contains(id)) add = true;
if (!add) {
if ((parentId > 0) && (ids.contains(parentId))) {
add = true;
}
}
if (add) {
String body = XMLUtil.getStringElement(startElement, "Body");
Set<String> codeSet = SOUtil.getCodeSet(body);
if (codeSet.size() == 0) {
emptyPosts++;
}
for (String codeFound : codeSet) {
String[] lines = codeFound.split("\r\n|\r|\n");
tempSet.clear();
for (String lineItem : lines) {
lineItem = lineItem.toLowerCase();
lineItem = lineItem.trim();
if (!CodeFragmentInspector.isJavaH(lineItem)) continue;
lineItem = StringUtil.cleanCode(lineItem);
if (lineItem.startsWith("//")) continue;
if (lineItem.length() <= 2) continue;
if (lineItem.startsWith("import ")) continue;
if (lineItem.startsWith("public")) continue;
if (lineItem.startsWith("private")) continue;
if (lineItem.startsWith("protected")) continue;
if (lineItem.startsWith("class")) continue;
List<String> tokens = CodeFragmentInspector.tokenizeAsList(lineItem);
for (String token : tokens) {
tempSet.add(token);
}
}
String newLineItem = "";
for (String token : tempSet) {
newLineItem = newLineItem + token + " ";
}
code.add(newLineItem.trim());
codeAdded++;
}
}
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
System.out.println(emptyPosts + " empty posts found.");
System.out.println(codeAdded + " snippets added.");
return code;
}
