/**
* Save a pattern of size 1 to the output file
*
* @param item the item
* @param bitmap its bitmap
* @throws IOException exception if error while writing to the file
*/
private void savePattern(Integer item, Bitmap bitmap) throws IOException {
// First, we check if the pattern contains the desired items (optional)
// We only do that if the user has specified some items that must appear in
// patterns.
if (mustAppearItems != null) {
// if the pattern does not contains all required items, then return
if (mustAppearItems.length > 1) {
return;
}
if (item.equals(mustAppearItems[0]) == false) {
return;
}
}
patternCount++; // increase the pattern count
StringBuilder r = new StringBuilder("");
r.append(item);
r.append(" -1 ");
r.append("#SUP: ");
r.append(bitmap.getSupport());
// if the user wants the sequence IDs, we will show them
if (outputSequenceIdentifiers) {
r.append(" #SID: ");
r.append(bitmap.getSIDs(sequencesSize));
}
writer.write(r.toString());
writer.newLine();
}
/**
* Save a pattern of size > 1 to the output file.
*
* @param prefix the prefix
* @param bitmap its bitmap
* @throws IOException exception if error while writing to the file
*/
private void savePattern(Prefix prefix, Bitmap bitmap) throws IOException {
// First, we check if the pattern contains the desired items (optional)
// We only do that if the user has specified some items that must appear in
// patterns.
if (mustAppearItems != null) {
Set<Integer> itemsFound = new HashSet<Integer>();
// for each item in the pattern
loop:
for (Itemset itemset : prefix.getItemsets()) {
for (Integer item : itemset.getItems()) {
// if the user required that this item must appear in all patterns
if (itemMustAppearInPatterns(item)) {
// we note it
itemsFound.add(item);
if (itemsFound.size() == mustAppearItems.length) {
break loop;
}
}
}
}
// if the pattern does not contains all required items, then return
if (itemsFound.size() != mustAppearItems.length) {
return;
}
}
patternCount++;
StringBuilder r = new StringBuilder("");
for (Itemset itemset : prefix.getItemsets()) {
// r.append('(');
for (Integer item : itemset.getItems()) {
String string = item.toString();
r.append(string);
r.append(' ');
}
r.append("-1 ");
}
r.append("#SUP: ");
r.append(bitmap.getSupport());
// if the user wants the sequence IDs, we will show them
if (outputSequenceIdentifiers) {
r.append(" #SID: ");
r.append(bitmap.getSIDs(sequencesSize));
}
writer.write(r.toString());
// System.out.println(r.toString());
writer.newLine();
}
