private void flushLineBuffer() throws IOException {
int rest = lineBuffer.length();
int cursor = 0;
while (rest > 0) {
int chunkSize = Math.min(rest, writeBuffer.length);
lineBuffer.getChars(cursor, cursor + chunkSize, writeBuffer, 0);
writer.write(writeBuffer, 0, chunkSize);
rest -= chunkSize;
cursor += chunkSize;
}
lineBuffer.setLength(0);
}
private void emitTime(int sec) {
fill('0', HOUR_FIELD_LENGTH, sec / (60 * 60));
lineBuffer.append(TIME_FIELD_SEPARATOR);
fill('0', MINUTE_FIELD_LENGTH, sec / 60 % 60);
lineBuffer.append(TIME_FIELD_SEPARATOR);
fill('0', SECOND_FIELD_LENGTH, sec % 60);
}
private boolean emitNull(ValueOption<?> option) {
if (option.isNull()) {
lineBuffer.append(ESCAPE_CHAR);
lineBuffer.append(ESCAPE_NULL_COLUMN);
return true;
}
return false;
}
private void emitDate(int days) {
int year = DateUtil.getYearFromDay(days);
int daysInYear = days - DateUtil.getDayFromYear(year);
boolean leap = DateUtil.isLeap(year);
int month = DateUtil.getMonthOfYear(daysInYear, leap);
int day = DateUtil.getDayOfMonth(daysInYear, leap);
fill('0', YEAR_FIELD_LENGTH, year);
lineBuffer.append(DATE_FIELD_SEPARATOR);
fill('0', MONTH_FIELD_LENGTH, month);
lineBuffer.append(DATE_FIELD_SEPARATOR);
fill('0', DATE_FIELD_LENGTH, day);
}
@Override
public void emit(DoubleOption option) throws IOException {
startCell();
if (emitNull(option)) {
return;
}
lineBuffer.append(option.get());
}
@Override
public void emit(BooleanOption option) throws IOException {
startCell();
if (emitNull(option)) {
return;
}
lineBuffer.append(option.get() ? BOOLEAN_TRUE : BOOLEAN_FALSE);
}
@Override
public void emit(DecimalOption option) throws IOException {
startCell();
if (emitNull(option)) {
return;
}
// TODO BigDecimal
lineBuffer.append(option.get());
}
@Override
public void emit(DateTimeOption option) throws IOException {
startCell();
if (emitNull(option)) {
return;
}
long seconds = option.get().getElapsedSeconds();
int days = DateUtil.getDayFromSeconds(seconds);
emitDate(days);
lineBuffer.append(DATE_TIME_SEPARATOR);
int sec = DateUtil.getSecondOfDay(seconds);
emitTime(sec);
}
private void consumeDecoded() {
decodeBuffer.flip();
if (decodeBuffer.hasRemaining()) {
char[] array = decodeBuffer.array();
for (int i = decodeBuffer.position(), n = decodeBuffer.limit(); i < n; i++) {
char c = array[i];
if (c == '\t') {
lineBuffer.append(ESCAPE_CHAR);
lineBuffer.append(ESCAPE_HT);
} else if (c == '\n') {
lineBuffer.append(ESCAPE_CHAR);
lineBuffer.append(ESCAPE_LF);
} else if (c == '\\') {
lineBuffer.append(ESCAPE_CHAR);
lineBuffer.append(ESCAPE_CHAR);
} else {
lineBuffer.append(c);
}
}
}
decodeBuffer.clear();
}
private void fill(char filler, int columns, int value) {
for (int i = 0, n = countToFill(columns, value); i < n; i++) {
lineBuffer.append(filler);
}
lineBuffer.append(value);
}
private void startCell() {
if (headOfLine == false) {
lineBuffer.append(CELL_SEPARATOR);
}
headOfLine = false;
}