Long occurrencesCount(Document document, String searchedWord) {
long count = 0;
for (String line : document.getLines()) {
for (String word : wordsIn(line)) {
if (searchedWord.equals(word)) {
count = count + 1;
}
}
}
return count;
}
static Folder fromDirectory(File dir) throws IOException {
List<Document> documents = new LinkedList<>();
List<Folder> subFolders = new LinkedList<>();
for (File entry : dir.listFiles()) {
if (entry.isDirectory()) {
subFolders.add(Folder.fromDirectory(entry));
} else {
documents.add(Document.fromFile(entry));
}
}
return new Folder(subFolders, documents);
}