/**
* Convert from Timestamp to an integer. This is called for CAST(... AS INT)
*
* @param i The Timestamp value to convert
* @return IntWritable
*/
public IntWritable evaluate(TimestampWritable i) {
if (i == null) {
return null;
} else {
intWritable.set(i.getSeconds());
return intWritable;
}
}
private LongWritable getLongWritable(TimestampWritable i) {
LongWritable result = new LongWritable();
if (i == null) {
return null;
} else {
result.set(i.getSeconds());
return result;
}
}
/** @return seconds corresponding to this TimestampWritable */
public long getSeconds() {
if (!timestampEmpty) {
return millisToSeconds(timestamp.getTime());
} else if (!bytesEmpty) {
return TimestampWritable.getSeconds(currentBytes, offset);
} else {
throw new IllegalStateException("Both timestamp and bytes are empty");
}
}
public int compareTo(TimestampWritable t) {
checkBytes();
long s1 = this.getSeconds();
long s2 = t.getSeconds();
if (s1 == s2) {
int n1 = this.getNanos();
int n2 = t.getNanos();
if (n1 == n2) {
return 0;
}
return n1 - n2;
} else {
return s1 < s2 ? -1 : 1;
}
}
public static void setTimestamp(Timestamp t, byte[] bytes, int offset) {
boolean hasDecimalOrSecondVInt = hasDecimalOrSecondVInt(bytes[offset]);
long seconds = (long) TimestampWritable.getSeconds(bytes, offset);
int nanos = 0;
if (hasDecimalOrSecondVInt) {
nanos = TimestampWritable.getNanos(bytes, offset + 4);
if (hasSecondVInt(bytes[offset + 4])) {
seconds +=
LazyBinaryUtils.readVLongFromByteArray(
bytes, offset + 4 + WritableUtils.decodeVIntSize(bytes[offset + 4]));
}
}
t.setTime(seconds * 1000);
if (nanos != 0) {
t.setNanos(nanos);
}
}
