Examples of net.jini.core.constraint.RemoteMethodControl

net.jini.core.constraint.RemoteMethodControl
Defines an interface to proxies for setting constraints to control remote method calls. If a proxy implements this interface, then the semantics of this interface apply to all calls through all remote methods defined by the proxy; there is no mechanism to exempt remote methods or remote interfaces from these semantics.
Constraints for a remote call come from two sources:
- Constraints imposed by the server (including any minimum constraints imposed by the communication mechanism used between the proxy and server)
- Constraints placed on a proxy by the client
The server constraints are controlled by the proxy implementation; they are not exposed to the client, and might vary in ways unknown to the client (for example, vary by method or over time). The client should set the constraints it wants rather than assuming that the server imposes particular constraints. Client constraints placed on a proxy apply to all remote calls made through that particular proxy by any thread, and the client can specify different constraints for each remote method.
A remote call will be performed only if the combined requirements (from both sources) can be satisfied. If the combined requirements cannot be satisfied, a {@link java.rmi.ConnectIOException} will be thrown by theremote call, typically containing (but not required to contain) a nested {@link net.jini.io.UnsupportedConstraintException}. In addition to the requirements, both client and server preferences will be satisfied, to the extent possible.
Note that constraints imposed by the communication mechanism must be factored into the requirements. For example, if the only explicit requirement is Delegation.YES, but the communication mechanism always requires client authentication, then effectively a ClientAuthentication.YES requirement exists, and so the Delegation.YES requirement must also be satisfied.
The constraint mechanisms are designed such that client constraints do not weaken server constraints, and vice versa. However, it is certainly possible to specify conflicting constraints. Preferences that conflict with requirements are ignored, and if preferences conflict with each other it is arbitrary as to which (if any) are satisfied, but if there are conflicting requirements the remote call will not be made. @author Sun Microsystems, Inc. @since 2.0

    /**
     * This method performs all actions mentioned in class description.
     *
     */
    public void run() throws Exception {
        RemoteMethodControl main = new RMCTEImpl();
        ProxyTrust boot = new RMCPTTEImpl();
        ProxyTrustInvocationHandler ptih = createPTIH(main, boot);
        MarshalledObject mo = new MarshalledObject(ptih);


        try {

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     * This method performs all actions mentioned in class description.
     *
     */
    public void run() throws Exception {
        RMCTENPIImpl mImpl = new RMCTENPIImpl();
        RemoteMethodControl main = (RemoteMethodControl)
                ProxyTrustUtil.newProxyInstance(mImpl, new InvHandler(mImpl));
        ProxyTrust boot = createValidBootProxy();
        ProxyTrustInvocationHandler ptih = createPTIH(main, boot);
        Object proxy = ProxyTrustUtil.newProxyInstance(new NPIImpl(), ptih);
        Method m = NonPublicInterface.class.getDeclaredMethod("test1",

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    /**
     * This method performs all actions mentioned in class description.
     *
     */
    public void run() throws Exception {
        RemoteMethodControl main = createValidMainProxy();
        ProxyTrust boot = createValidBootProxy();
        ProxyTrustInvocationHandler ptih = createPTIH(main, boot);
        Object proxy = ProxyTrustUtil.newProxyInstance(
                new Interface12Impl(), ptih);
        Method m = Object.class.getDeclaredMethod("hashCode", new Class[0]);

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    /**
     * This method performs all actions mentioned in class description.
     *
     */
    public void run() throws Exception {
        RemoteMethodControl main = createValidMainProxy();
        ProxyTrust boot = (ProxyTrust) ProxyTrustUtil.newProxyInstance(
                new RMCPTImpl());


        try {
            createPTIH(main, boot);

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     * This method performs all actions mentioned in class description.
     *
     */
    public void run() throws Exception {
        RMCTENPIImpl mImpl = new RMCTENPIImpl();
        RemoteMethodControl main = (RemoteMethodControl)
                ProxyTrustUtil.newProxyInstance(mImpl,
                        new InvHandler(mImpl));
        ProxyTrust boot = createValidBootProxy();
        ProxyTrustInvocationHandler ptih = createPTIH(main, boot);
        Object proxy = ProxyTrustUtil.newProxyInstance(new NPIImpl(), ptih);

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      if (obj == null || ctx == null) {
    throw new NullPointerException();
      } else if (!(obj instanceof ConstrainableProxy)) {
    return false;
      }
      RemoteMethodControl otherServerProxy =
    (RemoteMethodControl) ((ConstrainableProxy) obj).serverProxy;
      MethodConstraints mc = otherServerProxy.getConstraints();
      TrustEquivalence trusted =
    (TrustEquivalence) serverProxy.setConstraints(mc);
      return trusted.checkTrustEquivalence(otherServerProxy);
  }

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        MethodConstraints constraints)
    {
  final MethodConstraints serverRefConstraints 
      = ConstrainableProxyUtil.translateConstraints(constraints,
                methodMapArray);
  final RemoteMethodControl constrainedServer = 
      ((RemoteMethodControl)server).
      setConstraints(serverRefConstraints);


  return (OutriggerAdmin)constrainedServer;
    }

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         *  applied to the given client method constraints.
         */
        private static MailboxBackEnd constrainServer( MailboxBackEnd server,
                                                MethodConstraints constraints)
        {
            RemoteMethodControl constrainedServer = 
                ((RemoteMethodControl)server).setConstraints(constraints);


            return ((MailboxBackEnd)constrainedServer);
        }//end constrainServer

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      new Object[] { obj, ctx });
  if (obj == null || ctx == null) {
      throw new NullPointerException("Arguments must not be null");
  } 


  RemoteMethodControl otherServerProxy;
  if (obj instanceof SharedGroupBackEnd) {
      otherServerProxy = (RemoteMethodControl) obj;
  } else {
      logger.log(Level.FINEST, "Object {0} is not a supported type",
    obj);
      return false;
  }


  MethodConstraints mc = otherServerProxy.getConstraints();
  TrustEquivalence trusted =
      (TrustEquivalence) serverProxy.setConstraints(mc);
  boolean result = trusted.checkTrustEquivalence(otherServerProxy);
  logger.exiting(ProxyVerifier.class.getName(), "isTrustedObject", 
      Boolean.valueOf(result));

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          new Object[] { obj, ctx });
  }
  if (obj == null || ctx == null) {
      throw new NullPointerException("Arguments must not be null");
  }
  RemoteMethodControl otherServerProxy;
  Uuid inputProxyID = null;
  if (obj instanceof Registration.ConstrainableRegistration) {
      Registration reg = (Registration) obj;
      // verify sub-components
      if (!isTrustedObject(reg.lease, ctx) ||
    !isTrustedObject(reg.listener, ctx)) {
    return false;
      }
      otherServerProxy = (RemoteMethodControl) reg.mailbox;
  } else if (obj instanceof MailboxBackEnd && 
             obj instanceof RemoteMethodControl) {
            /* Inner proxy verification case. To simplify logic, below,
       * just assume the same Uuid that we have in hand.
       */ 
      otherServerProxy = (RemoteMethodControl)obj;
      inputProxyID = proxyID;
  } else if (obj instanceof MailboxProxy.ConstrainableMailboxProxy) {
      otherServerProxy = (RemoteMethodControl) ((MailboxProxy)obj).mailbox;
      inputProxyID = ((ReferentUuid)obj).getReferentUuid();
  } else if (obj instanceof MailboxAdminProxy.ConstrainableMailboxAdminProxy) {
      otherServerProxy = (RemoteMethodControl) ((MailboxAdminProxy)obj).server;
      inputProxyID = ((ReferentUuid)obj).getReferentUuid();
  } else if (obj instanceof ListenerProxy.ConstrainableListenerProxy) {
      otherServerProxy = (RemoteMethodControl) ((ListenerProxy)obj).server;
  } else if (obj instanceof ConstrainableLandlordLease) {
      final LandlordProxyVerifier lpv =
    new LandlordProxyVerifier((Landlord)serverProxy, proxyID);
      return lpv.isTrustedObject(obj, ctx);
  } else {
      logger.log(Level.FINEST, "Object {0} is not a supported type",
    obj);
      return false;
  }
  
  // For top-level proxies, quickly verify proxy Uuid
  if ((inputProxyID != null) &&
      !(proxyID.equals(inputProxyID))) {
      return false;
  }


  MethodConstraints mc = otherServerProxy.getConstraints();
  TrustEquivalence trusted =
      (TrustEquivalence) serverProxy.setConstraints(mc);
  boolean result = trusted.checkTrustEquivalence(otherServerProxy);
  if (logger.isLoggable(Level.FINER)) {
      logger.exiting(proxyVerifierSourceClass, "isTrustedObject",

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