Mercurial > hg > blitz_condensed
annotate src/org/dancres/blitz/notify/TxnNotifys.java @ 34:6f68e94c1fb8 default tip
Add CondensedStats monitoring utility, equivalent to vmstat
author | Dominic Cleal <dominic-cleal@cdo2.com> |
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date | Thu, 05 Aug 2010 11:07:25 +0100 |
parents | 3dc0c5604566 |
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Initial checkin of blitz 2.0 fcs - no installer yet.
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1 package org.dancres.blitz.notify; |
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2 |
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3 import java.io.IOException; |
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4 |
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5 import java.util.HashMap; |
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6 import java.util.ArrayList; |
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7 import java.util.LinkedList; |
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8 import java.util.Iterator; |
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9 import java.util.logging.Level; |
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10 |
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11 import org.dancres.blitz.txn.TxnState; |
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12 |
3dc0c5604566
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13 import org.dancres.blitz.oid.OID; |
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14 |
3dc0c5604566
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15 /** |
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16 Tracks notify registrations associated with specific transactions. |
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17 This is done so that when we receive a transaction ended event we can |
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18 cleanup any outstanding templates associated with that transaction. |
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19 |
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20 @deprecated Transactional de-reg is handled by the generator when receiving |
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21 end of transaction message. |
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22 */ |
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23 class TxnNotifys { |
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24 private HashMap theRegsByTxn = new HashMap(); |
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25 |
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26 synchronized void track(OID aOID, TxnState aTxn) { |
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27 // System.out.println("Tracking: " + aOID + ", " + aTxn.getId()); |
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28 |
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29 LinkedList myRegs = getRegs(aTxn); |
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30 |
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31 if (myRegs == null) { |
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32 myRegs = new LinkedList(); |
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33 theRegsByTxn.put(aTxn.getId(), myRegs); |
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34 } |
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35 |
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36 myRegs.add(aOID); |
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37 } |
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Dan Creswell <dan.creswell@gmail.com>
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38 |
3dc0c5604566
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Dan Creswell <dan.creswell@gmail.com>
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39 /** |
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40 Return an Iterator of OID's |
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41 */ |
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42 void unRegAll(TxnState aTxn) { |
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43 Iterator myEventGenOIDs = null; |
3dc0c5604566
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Dan Creswell <dan.creswell@gmail.com>
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44 |
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45 synchronized(this) { |
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46 LinkedList myRegs = (LinkedList) theRegsByTxn.remove(aTxn.getId()); |
3dc0c5604566
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Dan Creswell <dan.creswell@gmail.com>
parents:
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47 |
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48 if (myRegs != null) |
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49 myEventGenOIDs = myRegs.iterator(); |
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Dan Creswell <dan.creswell@gmail.com>
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50 } |
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Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
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51 |
3dc0c5604566
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Dan Creswell <dan.creswell@gmail.com>
parents:
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52 if (myEventGenOIDs != null) { |
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53 while (myEventGenOIDs.hasNext()) { |
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54 OID myOID = (OID) myEventGenOIDs.next(); |
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55 |
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56 try { |
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57 EventGeneratorFactory.get().cancel(myOID); |
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58 } catch (IOException aDbe) { |
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59 } |
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60 } |
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61 } |
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62 } |
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63 |
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Dan Creswell <dan.creswell@gmail.com>
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64 private LinkedList getRegs(TxnState aTxn) { |
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65 return (LinkedList) theRegsByTxn.get(aTxn.getId()); |
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Dan Creswell <dan.creswell@gmail.com>
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66 } |
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67 } |