Package google.registry.rde

Class RdeUtils

java.lang.Object

google.registry.rde.RdeUtils

public final class RdeUtils
extends Object

Helper methods for RDE.

Method Summary

Modifier and Type	Method	Description
static String	findMostRecentPrefixForWatermark(org.joda.time.DateTime watermark, String bucket, String tld, GcsUtils gcsUtils)	Find the most recent folder in the given GCS bucket for the given watermark.
static org.joda.time.DateTime	peekWatermark(BufferedInputStream xmlInput)	Look at some bytes from xmlInput to ensure it appears to be a FULL XML deposit and then use a regular expression to extract the watermark timestamp which is returned.
static String	timestampToId(org.joda.time.ReadableInstant timestamp)	Generates an ID matching the regex \w{1,13} from a millisecond timestamp.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

peekWatermark

public static org.joda.time.DateTime peekWatermark(BufferedInputStream xmlInput)
                                            throws IOException,
XmlException

Look at some bytes from xmlInput to ensure it appears to be a FULL XML deposit and then use a regular expression to extract the watermark timestamp which is returned.

Throws:

IOException

XmlException

findMostRecentPrefixForWatermark

public static String findMostRecentPrefixForWatermark(org.joda.time.DateTime watermark,
 String bucket,
 String tld,
 GcsUtils gcsUtils)
                                               throws HttpException.NoContentException

Find the most recent folder in the given GCS bucket for the given watermark.

Throws:

HttpException.NoContentException

timestampToId

public static String timestampToId(org.joda.time.ReadableInstant timestamp)

Generates an ID matching the regex \w{1,13} from a millisecond timestamp.

This routine works by turning the number of UTC milliseconds from the UNIX epoch into a big-endian byte-array which is then converted to a base32 string without padding that's no longer than 13 chars because 13 = Ceiling[Log[32, 2^64]]. How lucky!