Mercurial > hg > blitz_condensed
annotate src/org/dancres/blitz/remote/ConstrainableAdminProxy.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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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 java.lang.reflect.Method; |
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8 |
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9 import net.jini.id.Uuid; |
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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 import net.jini.core.transaction.Transaction; |
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18 |
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19 import net.jini.core.entry.Entry; |
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20 |
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21 import com.sun.jini.outrigger.JavaSpaceAdmin; |
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22 |
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23 import com.sun.jini.proxy.ConstrainableProxyUtil; |
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24 |
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25 import org.dancres.blitz.mangler.MangledEntry; |
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26 |
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27 import org.dancres.util.ReflectUtil; |
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28 |
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29 /** |
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30 When the remote stub generated by the exporter implements |
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31 RemoteMethodControl, Blitz exports this proxy for Admin duties to support |
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32 appropriate constraints etc. |
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33 */ |
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34 public final class ConstrainableAdminProxy extends |
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35 AdminProxy implements RemoteMethodControl { |
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36 |
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37 private static final Method[] theMethodMapping = { |
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38 ReflectUtil.findMethod(JavaSpaceAdmin.class, "space", |
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39 new Class[] {}), |
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40 ReflectUtil.findMethod(EntryViewAdmin.class, "getJavaSpaceProxy", |
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41 new Class[] {}), |
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42 ReflectUtil.findMethod(JavaSpaceAdmin.class, "contents", |
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43 new Class[] {Entry.class, Transaction.class}), |
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44 ReflectUtil.findMethod(EntryViewAdmin.class, "newView", |
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45 new Class[] {MangledEntry[].class, |
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46 Transaction.class, |
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47 long.class, boolean.class, |
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48 long.class, int.class}), |
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49 ReflectUtil.findMethod(JavaSpaceAdmin.class, "contents", |
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50 new Class[] {Entry.class, Transaction.class, |
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51 int.class}), |
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52 ReflectUtil.findMethod(EntryViewAdmin.class, "newView", |
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53 new Class[] {MangledEntry[].class, |
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54 Transaction.class, |
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55 long.class, boolean.class, |
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56 long.class, int.class}) |
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57 }; |
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58 |
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59 |
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60 private static AdminServer constrainStub(AdminServer aServer, |
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61 MethodConstraints aConstraints) { |
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62 RemoteMethodControl myServer = (RemoteMethodControl) aServer; |
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63 |
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64 MethodConstraints myStubConstraints = |
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65 ConstrainableProxyUtil.translateConstraints(aConstraints, |
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66 theMethodMapping); |
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67 |
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68 myServer.setConstraints(myStubConstraints); |
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69 return (AdminServer) myServer; |
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70 } |
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71 |
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72 private MethodConstraints theConstraints; |
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73 |
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74 ConstrainableAdminProxy(AdminServer aAdmin, Uuid aUuid) { |
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75 super(aAdmin, aUuid); |
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76 } |
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77 |
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78 private ConstrainableAdminProxy(AdminServer anAdmin, Uuid aUuid, |
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79 MethodConstraints aConstraints) { |
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80 super(constrainStub(anAdmin, aConstraints), aUuid); |
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81 theConstraints = aConstraints; |
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82 } |
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83 |
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84 private ProxyTrustIterator getProxyTrustIterator() { |
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85 return new SingletonProxyTrustIterator(theStub); |
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86 } |
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87 |
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88 public RemoteMethodControl setConstraints(MethodConstraints aConstraints) { |
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89 return new ConstrainableAdminProxy(theStub, theUuid, aConstraints); |
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90 } |
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91 |
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92 public MethodConstraints getConstraints() { |
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93 return theConstraints; |
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94 } |
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95 |
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96 private void readObject(ObjectInputStream anOIS) |
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97 throws IOException, ClassNotFoundException { |
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98 |
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99 anOIS.defaultReadObject(); |
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100 |
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101 if(! (theStub instanceof RemoteMethodControl) ) { |
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102 throw new InvalidObjectException("space does not implement RemoteMethodControl"); |
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103 } |
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104 } |
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105 } |