Examples of net.jini.discovery.ConstrainableLookupLocator

net.jini.discovery.ConstrainableLookupLocator
LookupLocator subclass which supports constraint operations through the {@link RemoteMethodControl} interface. The constraints of aConstrainableLookupLocator instance control how it performs unicast discovery, and apply only to its {@link LookupLocator#getRegistrar() getRegistrar()} and {@link LookupLocator#getRegistrar(int) getRegistrar(int)} methods. The constraints may also be used by otherutilities, such as {@link LookupLocatorDiscovery}, to determine how unicast discovery should be performed on behalf of a given ConstrainableLookupLocator instance. Untrusted ConstrainableLookupLocator instances can be verified using the {@link ConstrainableLookupLocatorTrustVerifier} trust verifier. @author Sun Microsystems, Inc. @since 2.0 @com.sun.jini.impl This class supports use of the following constraint types to control unicast discovery behavior:
- {@link com.sun.jini.discovery.DiscoveryProtocolVersion}: this constraint can be used to control which version of the unicast discovery protocol is used.
- {@link com.sun.jini.discovery.UnicastSocketTimeout}: this constraint can be used to control the read timeout set on sockets over which unicast discovery is performed.
- {@link net.jini.core.constraint.ConnectionRelativeTime}: this constraint can be used to control the relative connection timeout set on sockets over which unicast discovery is performed.
- {@link net.jini.core.constraint.ConnectionAbsoluteTime}: this constraint can be used to control the absolute connection timeout set on sockets over which unicast discovery is performed.
In addition, the {@link com.sun.jini.discovery.MulticastMaxPacketSize} and{@link com.sun.jini.discovery.MulticastTimeToLive} constraint types aretrivially supported, but do not have any effect on unicast discovery operations. Constraints other than those mentioned above are passed on to the underlying implementations of versions 1 and 2 of the discovery protocols.
An example of using constraints with ConstrainableLookupLocator is:
```
 new ConstrainableLookupLocator("target_host", 4160, new  {@link net.jini.constraint.BasicMethodConstraints}( new  {@link InvocationConstraints}( DiscoveryProtocolVersion.TWO, new UnicastSocketTimeout(120000)))); 
```
The resulting ConstrainableLookupLocator instance would (when used) perform unicast discovery to the host target_host on port 4160 using discovery protocol version 2, with a socket read timeout of 120000 milliseconds unless one was explicitly specified using the {@link #getRegistrar(int)} method.

  return new LookupSimulatorProxyVerifier(myRef);
    }


    public LookupLocator getConstrainedLocator(String host, int port) 
    {
  return new ConstrainableLookupLocator(host, port, locatorConstraints);
    }

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    }


    public LookupLocator getConstrainedLocator(String url) 
  throws MalformedURLException
    {
  return new ConstrainableLookupLocator(url, locatorConstraints);
    }

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      /* start the UnicastThread listening on the new port */
      unicaster = newUnicaster;
      unicaster.start();
      unicastPort = port;
      myLocator = (proxy instanceof RemoteMethodControl) ?
    new ConstrainableLookupLocator(
        myLocator.getHost(), unicaster.port, null) :
    new LookupLocator(myLocator.getHost(), unicaster.port);
      synchronized (announcer) {
    announcer.notify();
      }

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      myServiceID = newServiceID();
  }
  myRef = (Registrar) serverExporter.export(this);
  proxy = RegistrarProxy.getInstance(myRef, myServiceID);
  myLocator = (proxy instanceof RemoteMethodControl) ?
      new ConstrainableLookupLocator(
    unicastDiscoveryHost, unicaster.port, null) :
      new LookupLocator(unicastDiscoveryHost, unicaster.port);
  /* register myself */
  Item item = new Item(new ServiceItem(myServiceID,
               proxy,

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    public static LookupLocator getConstrainedLocator(String host, int port) 
    {
  if (testLocatorConstraints == null) {
      initLocatorConstraints();
  }
  return new ConstrainableLookupLocator(getFQHostName(host), 
                port, 
                testLocatorConstraints);
    }

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    return;
      String[] addrs = parseList(list, false);
      LookupLocator[] locs = new LookupLocator[addrs.length];
      for (int i = 0; i < addrs.length; i++) {
    try {
        locs[i] = new ConstrainableLookupLocator(
            "jini://" + addrs[i], locatorConstraints);
    } catch (MalformedURLException e) {
        JOptionPane.showMessageDialog(Browser.this,
              "\"" + addrs[i] + "\": " +
              e.getMessage(),

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      /* start the UnicastThread listening on the new port */
      unicaster = newUnicaster;
      unicaster.start();
      unicastPort = port;
      myLocator = (proxy instanceof RemoteMethodControl) ?
    new ConstrainableLookupLocator(
        myLocator.getHost(), unicaster.port, null) :
    new LookupLocator(myLocator.getHost(), unicaster.port);
      synchronized (announcer) {
    announcer.notify();
      }

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      myServiceID = newServiceID();
  }
  myRef = (Registrar) serverExporter.export(this);
  proxy = RegistrarProxy.getInstance(myRef, myServiceID);
  myLocator = (proxy instanceof RemoteMethodControl) ?
      new ConstrainableLookupLocator(
    unicastDiscoveryHost, unicaster.port, null) :
      new LookupLocator(unicastDiscoveryHost, unicaster.port);
  /* register myself */
  Item item = new Item(new ServiceItem(myServiceID,
               proxy,

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            String host = (locsStarted[i].getHost()).toLowerCase();
            if( host.indexOf(domain) == -1 ) {//host does not contain domain
                host = new String(host+"."+domain);//add domain
            }//endif
      if (locsStarted[i] instanceof ConstrainableLookupLocator) {
                locsToAdd[i] = new ConstrainableLookupLocator(
        host, locsStarted[i].getPort(), 
        ((ConstrainableLookupLocator)locsStarted[i]).getConstraints());
      } else {
                locsToAdd[i] = new LookupLocator(host,locsStarted[i].getPort());
      }

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            String host = (unqualifiedLocs[i].getHost()).toLowerCase();
            if( host.indexOf(domain) == -1 ) {//host does not contain domain
                host = new String(host+"."+domain);//add domain
            }//endif
            if (unqualifiedLocs[i] instanceof ConstrainableLookupLocator) {
                qualifiedLocs[i] = new ConstrainableLookupLocator(
                    host,unqualifiedLocs[i].getPort(),
                    ((ConstrainableLookupLocator)unqualifiedLocs[i]).getConstraints());
            } else {
                qualifiedLocs[i] = new LookupLocator
                                           (host,unqualifiedLocs[i].getPort());

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Related Classes of net.jini.discovery.ConstrainableLookupLocator

com.sun.jini.discovery.internal.MultiIPDiscovery

com.sun.jini.discovery.UnicastResponse

com.sun.jini.discovery.UnicastSocketTimeout

com.sun.jini.example.browser.Browser$UniFind

com.sun.jini.qa.harness.AbstractServiceAdmin

com.sun.jini.qa.harness.QAConfig

com.sun.jini.reggie.RegistrarImpl

com.sun.jini.test.services.lookupsimulator.LookupSimulatorImpl

com.sun.jini.test.spec.discoveryservice.event.AddLocatorsFullyQualified

com.sun.jini.test.spec.discoveryservice.event.RemoveLocatorsFullyQualified

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