Mercurial > hg > blitz_condensed
annotate src/org/dancres/blitz/remote/AdminIteratorImpl.java @ 0:3dc0c5604566
Initial checkin of blitz 2.0 fcs - no installer yet.
author | Dan Creswell <dan.creswell@gmail.com> |
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date | Sat, 21 Mar 2009 11:00:06 +0000 |
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0
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Initial checkin of blitz 2.0 fcs - no installer yet.
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1 package org.dancres.blitz.remote; |
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2 |
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3 import java.rmi.RemoteException; |
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4 |
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5 import net.jini.core.entry.Entry; |
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6 import net.jini.core.entry.UnusableEntryException; |
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7 |
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8 import com.sun.jini.outrigger.AdminIterator; |
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9 |
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10 import org.dancres.blitz.EntryChit; |
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11 |
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12 import org.dancres.blitz.mangler.EntryMangler; |
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13 |
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14 import org.dancres.blitz.remote.view.EntryViewUID; |
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15 |
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16 public class AdminIteratorImpl implements AdminIterator { |
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17 static final int CHUNK_SIZE = 50; |
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18 |
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19 private EntryViewUID theViewId; |
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20 private AdminServer theStub; |
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21 private EntryMangler theMangler; |
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22 |
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23 private boolean isDone; |
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24 |
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25 private EntryChit[] theCurrentBatch; |
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26 private int theOffset = -1; |
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27 |
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28 private int theChunkSize; |
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29 |
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30 AdminIteratorImpl(EntryMangler aMangler, EntryViewUID aViewId, |
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31 AdminServer aStub) { |
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32 this(aMangler, aViewId, CHUNK_SIZE, aStub); |
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33 } |
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34 |
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35 AdminIteratorImpl(EntryMangler aMangler, EntryViewUID aViewId, |
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36 AdminServer aStub, EntryChit[] anInitialBatch) { |
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37 this(aMangler, aViewId, CHUNK_SIZE, aStub, anInitialBatch); |
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38 } |
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39 |
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40 AdminIteratorImpl(EntryMangler aMangler, EntryViewUID aViewId, |
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41 int aChunkSize, AdminServer aStub) { |
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42 theViewId = aViewId; |
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43 theStub = aStub; |
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44 theMangler = aMangler; |
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45 theChunkSize = aChunkSize; |
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46 } |
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47 |
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48 AdminIteratorImpl(EntryMangler aMangler, EntryViewUID aViewId, |
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49 int aChunkSize, AdminServer aStub, EntryChit[] anInitialBatch) { |
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50 theViewId = aViewId; |
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51 theStub = aStub; |
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52 theMangler = aMangler; |
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53 theChunkSize = aChunkSize; |
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54 |
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55 if (anInitialBatch != null) { |
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56 theCurrentBatch = anInitialBatch; |
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57 theOffset = 0; |
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58 } |
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59 } |
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60 |
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61 public Entry next() throws UnusableEntryException, RemoteException { |
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62 if (isDone) |
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63 return null; |
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64 |
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65 if ((theOffset == -1) || (theOffset >= theCurrentBatch.length)) { |
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66 // Haven't got a batch yet |
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67 theCurrentBatch = theStub.getNext(theViewId, theChunkSize); |
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68 theOffset = 0; |
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69 } |
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70 |
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71 if (theCurrentBatch == null) { |
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72 isDone = true; |
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73 return null; |
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74 } |
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75 |
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76 return theMangler.unMangle(theCurrentBatch[theOffset++].getEntry()); |
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77 } |
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78 |
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79 public void delete() throws RemoteException { |
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80 if (theCurrentBatch != null) |
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81 theStub.delete(theCurrentBatch[theOffset - 1].getCookie()); |
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82 } |
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83 |
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84 public void close() throws RemoteException { |
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85 theStub.close(theViewId); |
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86 } |
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87 } |