public List<String> titlesForTitlePrefix(String prefix, int limit) {
if (limit <= 0) {
return Collections.emptyList();
}
final ArrayList<String> titles = new ArrayList<String>(limit);
synchronized (myBooksByFile) {
for (Book b : myBooksByFile.values()) {
if (prefix.equals(TitleUtil.firstTitleLetter(b))) {
titles.add(b.getTitle());
if (--limit == 0) {
break;
}
}
}
}
return titles;
}
public List<String> titlesForTag(Tag tag, int limit) {
if (limit <= 0) {
return Collections.emptyList();
}
final ArrayList<String> titles = new ArrayList<String>(limit);
final boolean isNull = Tag.NULL.equals(tag);
synchronized (myBooksByFile) {
for (Book b : myBooksByFile.values()) {
if (isNull ? b.tags().isEmpty() : b.tags().contains(tag)) {
titles.add(b.getTitle());
if (--limit == 0) {
break;
}
}
}
}
return titles;
}
public List<String> titlesForSeries(String series, int limit) {
if (limit <= 0) {
return Collections.emptyList();
}
final ArrayList<String> titles = new ArrayList<String>(limit);
synchronized (myBooksByFile) {
for (Book b : myBooksByFile.values()) {
final SeriesInfo info = b.getSeriesInfo();
if (info != null && series.equals(info.Title)) {
titles.add(b.getTitle());
if (--limit == 0) {
break;
}
}
}
}
return titles;
}
public List<String> titlesForSeriesAndAuthor(String series, Author author, int limit) {
if (limit <= 0) {
return Collections.emptyList();
}
final boolean isNull = Author.NULL.equals(author);
final ArrayList<String> titles = new ArrayList<String>(limit);
synchronized (myBooksByFile) {
for (Book b : myBooksByFile.values()) {
final List<Author> bookAuthors = b.authors();
final SeriesInfo info = b.getSeriesInfo();
if (info != null
&& series.equals(info.Title)
&& (isNull && bookAuthors.isEmpty() || bookAuthors.contains(author))) {
titles.add(b.getTitle());
if (--limit == 0) {
break;
}
}
}
}
return titles;
}