Mercurial > hg > blitz_stable

annotate src/org/dancres/blitz/entry/LeaseRecordUtils.java @ 0:3dc0c5604566

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Initial checkin of blitz 2.0 fcs - no installer yet.
author Dan Creswell <dan.creswell@gmail.com>
date Sat, 21 Mar 2009 11:00:06 +0000
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3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
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1 package org.dancres.blitz.entry;
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2
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3 import org.dancres.util.BytePacker;
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4 import org.dancres.blitz.oid.OIDFactory;
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5
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6 class LeaseRecordUtils {
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7 static boolean isKey(byte[] anEntry, byte[] aPackedOid) {
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8 for (int i = 0; i < aPackedOid.length; i++) {
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9 if (anEntry[8 + i] != aPackedOid[i])
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10 return false;
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11 }
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12
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13 return true;
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14 }
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16 static byte[] getLeaseEntry(PersistentEntry anEntry) {
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17 byte[] myEntry = new byte[8 + OIDFactory.KEY_SIZE];
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18 BytePacker myPacker = BytePacker.getMSBPacker(myEntry);
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19
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20 myPacker.putLong(anEntry.getExpiry(), 0);
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21 myPacker.putArray(anEntry.getKey(), 8);
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22
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23 // dumpHex("leaseentry", myEntry);
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24
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25 return myEntry;
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26 }
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27
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28 static byte[] getId(PersistentEntry anEntry) {
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29 // dumpHex("getSleeveKey", aSleeve.getKey());
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30
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31 return anEntry.getKey();
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32 }
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33
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34 static byte[] getBucketKey(PersistentEntry anEntry) {
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35 return getBucketKey(anEntry.getOID().getZoneId());
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36 }
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37
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38 static byte[] getBucketKey(int anId) {
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39 byte[] myKey = new byte[4];
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40 BytePacker myPacker = BytePacker.getMSBPacker(myKey);
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41 myPacker.putInt(anId, 0);
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42
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43 // dumpHex("bucketKey", myKey);
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44
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45 return myKey;
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46 }
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47
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48 static long unpackExpiry(byte[] aLeaseRecord) {
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49 BytePacker myPacker = BytePacker.getMSBPacker(aLeaseRecord);
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50
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51 // System.err.println("Unpack expiry: " + myPacker.getLong(0));
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52
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53 return myPacker.getLong(0);
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54 }
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55
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56 static byte[] unpackId(byte[] aLeaseRecord) {
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57 BytePacker myPacker = BytePacker.getMSBPacker(aLeaseRecord);
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58
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59 // System.err.println("Unpack id: " + myPacker.getLong(8));
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60
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61 return myPacker.getArray(8, OIDFactory.KEY_SIZE);
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62 }
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63
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64 private static void dumpHex(String aTitle, byte[] anArray) {
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65 System.err.println();
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66 System.err.println(aTitle);
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67 for (int i = 0; i < anArray.length; i++) {
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68 System.err.print(Integer.toHexString(anArray[i]) + " ");
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69 }
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70
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71 System.err.println();
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72 }
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73 }