Examples of InvocationConstraints

net.jini.core.constraint.InvocationConstraints
An immutable aggregation of constraints into a set of requirements and a set of preferences. A requirement is a mandatory constraint that must be satisfied for the invocation. A preference is a desired constraint, to be satisfied if possible, but it will not be satisfied if it conflicts with a requirement. If two preferences conflict, it is arbitrary as to which one will be satisfied. If a constraint is not understood, due to lack of knowledge of the type of the constraint or the contents of the constraint, then the constraint cannot be satisfied.
Note that it is possible for an instance of this class to contain both requirements that conflict with each other, and preferences that conflict with each other and with requirements. @author Sun Microsystems, Inc. @since 2.0

Examples of net.jini.core.constraint.InvocationConstraints

  public boolean tryGetProxy() {
      if (proxy != null ) {
    throw new IllegalArgumentException
                                 ("LookupLocator has been discovered already");
      }
      InvocationConstraints ic = InvocationConstraints.EMPTY;
      if (l instanceof RemoteMethodControl) {
    MethodConstraints mc =
        ((RemoteMethodControl) l).getConstraints();
    if (mc != null) {
        ic = mc.getConstraints(getRegistrarMethod);

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Examples of net.jini.core.constraint.InvocationConstraints

     * processed
     */
    public ServiceRegistrar getRegistrar(int timeout)
  throws IOException, ClassNotFoundException
    {
  InvocationConstraints ic = (constraints != null) ?
      constraints.getConstraints(getRegistrarTimeoutMethod) :
      InvocationConstraints.EMPTY;
  Collection reqs = new ArrayList(ic.requirements());
  reqs.add(new UnicastSocketTimeout(timeout));
  return getRegistrar(new InvocationConstraints(reqs, ic.preferences()));
    }

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Examples of net.jini.core.constraint.InvocationConstraints

          InvocationConstraints constraints)
    {
  if (maxPacketSize < MIN_MAX_PACKET_SIZE) {
      throw new IllegalArgumentException("maxPacketSize too small");
  }
  final InvocationConstraints absc = 
      (constraints != null) ? constraints.makeAbsolute() : null;


  return new EncodeIterator() {


      private final Iterator entries =

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Examples of net.jini.core.constraint.InvocationConstraints

              InvocationConstraints constraints)
    {
  if (maxPacketSize < MIN_MAX_PACKET_SIZE) {
      throw new IllegalArgumentException("maxPacketSize too small");
  }
  final InvocationConstraints absc =
      (constraints != null) ? constraints.makeAbsolute() : null;


  return new EncodeIterator() {


      private final Iterator entries =

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Examples of net.jini.core.constraint.InvocationConstraints

  public boolean tryGetProxy() {
      if (proxy != null ) {
    throw new IllegalArgumentException
                                 ("LookupLocator has been discovered already");
      }
      InvocationConstraints ic = InvocationConstraints.EMPTY;
      if (l instanceof RemoteMethodControl) {
    MethodConstraints mc =
        ((RemoteMethodControl) l).getConstraints();
    if (mc != null) {
        ic = mc.getConstraints(getRegistrarMethod);

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Examples of net.jini.core.constraint.InvocationConstraints

     */
    private static void checkConstraints(ServerCapabilities serverCapabilities,
           InvocationConstraints constraints)
  throws UnsupportedConstraintException
    {
  InvocationConstraints unfulfilled =
      serverCapabilities.checkConstraints(constraints);
  for (Iterator i = unfulfilled.requirements().iterator(); i.hasNext();)
  {
      InvocationConstraint c = (InvocationConstraint) i.next();
      if (!(c instanceof Integrity)) {
    throw new UnsupportedConstraintException(
        "cannot satisfy unfulfilled constraint: " + c);

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Examples of net.jini.core.constraint.InvocationConstraints

      /*
       * Unmarshal method and check security constraints.
       */
      in = createMarshalInputStream(impl, request, integrity, context);
      method = unmarshalMethod(impl, in, context);
      InvocationConstraints sc =
    (serverConstraints == null ?
     InvocationConstraints.EMPTY :
     serverConstraints.getConstraints(method));
      if (integrity && !sc.requirements().contains(Integrity.YES)) {
    Collection requirements = new ArrayList(sc.requirements());
    requirements.add(Integrity.YES);
    sc = new InvocationConstraints(requirements, sc.preferences());
      }
      
      InvocationConstraints unfulfilled = request.checkConstraints(sc);
      for (Iterator i = unfulfilled.requirements().iterator();
     i.hasNext();)
      {
    InvocationConstraint c = (InvocationConstraint) i.next();
    if (!(c instanceof Integrity) ||
        (!integrity && c == Integrity.YES))

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Examples of net.jini.core.constraint.InvocationConstraints

            
            // 1
            String name = "someMethod";
            Class[] types = new Class[] {int.class, Object.class};
            InvocationConstraint ic = Delegation.YES;
            InvocationConstraints constraints = new InvocationConstraints(
                    ic, null);
            MethodDesc md = callConstructor(testCase, name, types, constraints);
            String result = md.toString();
            if (result.length() == 0) {
                throw new TestException(

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Examples of net.jini.core.constraint.InvocationConstraints

              Method method,
              Object[] args)
  throws Throwable
    {
  Util.checkProxyRemoteMethod(proxy.getClass(), method);
  InvocationConstraints constraints = getConstraints(method);


  if (logger.isLoggable(Level.FINE)) {
      logCall(method, args, constraints);
  }

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Examples of net.jini.core.constraint.InvocationConstraints

       * requirements include Integrity.YES, then we must verify
       * codebase integrity at this level.  If there are any
       * non-Integrity unfulfilled requirements, we cannot
       * satisfy them, so this request attempt must fail.
       */
      InvocationConstraints unfulfilled =
    request.getUnfulfilledConstraints();
      for (Iterator i = unfulfilled.requirements().iterator();
     i.hasNext();)
      {
    InvocationConstraint c = (InvocationConstraint) i.next();
    if (c == Integrity.YES) {
        integrity = true;
    } else if (!(c instanceof Integrity)) {
        throw new UnsupportedConstraintException(
      "cannot satisfy unfulfilled constraint: " + c);
    }
    // REMIND: support ConstraintAlternatives containing Integrity?
      }


      /*
       * Even if Integrity.YES wasn't a requirement, we will
       * satisfy a preference for it.
       */
      if (!integrity) {
    for (Iterator i = unfulfilled.preferences().iterator();
         i.hasNext();)
    {
        InvocationConstraint c = (InvocationConstraint) i.next();
        if (c == Integrity.YES) {
      integrity = true;

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