private static <T> CharSequence commaSeparate(CsvValueEscaper<T> escaper, T... values) {
StringBuilder sb = new StringBuilder(values.length * VALUE_LENGTH_ESTIMATE);
if (values.length > 0) {
int end = values.length - 1;
for (int i = 0; i < end; i++) {
sb.append(escaper.escape(values[i])).append(COMMA);
}
sb.append(escaper.escape(values[end]));
}
return sb;
}
private static <T> CharSequence commaSeparate(
CsvValueEscaper<T> escaper, Iterable<? extends T> values) {
@SuppressWarnings("rawtypes")
final StringBuilder sb =
values instanceof Collection
? new StringBuilder(((Collection) values).size() * VALUE_LENGTH_ESTIMATE)
: new StringBuilder();
Iterator<? extends T> iterator = values.iterator();
if (iterator.hasNext()) {
T next = iterator.next();
while (iterator.hasNext()) {
sb.append(escaper.escape(next)).append(COMMA);
next = iterator.next();
}
sb.append(escaper.escape(next));
}
return sb;
}