Mercurial > hg > blitz_condensed
annotate src/org/dancres/blitz/remote/ConstrainableTxnParticipantProxy.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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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.io.IOException; |
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4 import java.io.ObjectInputStream; |
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5 import java.io.InvalidObjectException; |
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6 |
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7 import net.jini.id.Uuid; |
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8 |
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9 import net.jini.core.transaction.server.TransactionParticipant; |
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10 |
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11 import net.jini.core.constraint.RemoteMethodControl; |
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12 import net.jini.core.constraint.MethodConstraints; |
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13 |
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14 import net.jini.security.proxytrust.ProxyTrustIterator; |
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15 import net.jini.security.proxytrust.SingletonProxyTrustIterator; |
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16 |
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17 /** |
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18 When the remote stub generated by the exporter implements |
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19 RemoteMethodControl, Blitz exports this proxy for participant duties to |
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20 support appropriate constraints etc. |
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21 */ |
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22 public final class ConstrainableTxnParticipantProxy extends |
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23 TxnParticipantProxy implements RemoteMethodControl { |
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24 |
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25 private static TransactionParticipant constrainStub(TransactionParticipant aServer, MethodConstraints aConstraints) { |
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26 RemoteMethodControl myServer = (RemoteMethodControl) aServer; |
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27 |
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28 myServer.setConstraints(aConstraints); |
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29 return (TransactionParticipant) myServer; |
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30 } |
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31 |
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32 private final MethodConstraints theConstraints; |
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33 |
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34 ConstrainableTxnParticipantProxy(TransactionParticipant aPart, |
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35 Uuid aUuid) { |
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36 super(aPart, aUuid); |
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37 theConstraints = null; |
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Dan Creswell <dan.creswell@gmail.com>
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38 } |
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Dan Creswell <dan.creswell@gmail.com>
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39 |
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40 private ConstrainableTxnParticipantProxy(TransactionParticipant aPart, |
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41 Uuid aUuid, |
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42 MethodConstraints aConstraints) { |
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43 super(constrainStub(aPart, aConstraints), aUuid); |
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44 theConstraints = aConstraints; |
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Dan Creswell <dan.creswell@gmail.com>
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45 } |
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Dan Creswell <dan.creswell@gmail.com>
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46 |
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Dan Creswell <dan.creswell@gmail.com>
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47 private ProxyTrustIterator getProxyTrustIterator() { |
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48 return new SingletonProxyTrustIterator(theStub); |
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49 } |
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50 |
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parents:
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51 public RemoteMethodControl setConstraints(MethodConstraints aConstraints) { |
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52 return new ConstrainableTxnParticipantProxy(theStub, theUuid, |
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53 aConstraints); |
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54 |
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55 } |
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56 |
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57 public MethodConstraints getConstraints() { |
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58 return theConstraints; |
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59 } |
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60 |
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61 private void readObject(ObjectInputStream anOIS) |
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62 throws IOException, ClassNotFoundException { |
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63 |
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64 anOIS.defaultReadObject(); |
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65 |
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66 if(! (theStub instanceof RemoteMethodControl) ) { |
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67 throw new InvalidObjectException("space does not implement RemoteMethodControl"); |
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68 } |
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69 } |
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70 } |