Examples of net.jini.discovery.DiscoveryLocatorManagement

net.jini.discovery.DiscoveryLocatorManagement
This interface defines methods related to the management of the set of lookup services that are to be discovered using the unicast discovery protocol; that is, lookup services that are discovered by way of locator discovery. The methods of this interface define how an entity retrieves or modifies the set of locators associated with those lookup services. @author Sun Microsystems, Inc.

      ready.check();
      locators = prepareLocators(locators, locatorPreparer, false);
  concurrentObj.writeLock();
  try {
      ready.check();
      DiscoveryLocatorManagement dlm = 
    (DiscoveryLocatorManagement) discoer;
      dlm.setLocators(locators);
      lookupLocators = dlm.getLocators();
      addLogRecord(new LookupLocatorsChangedLogObj(lookupLocators));
      if (logger.isLoggable(Level.CONFIG)) {
    logger.log(
        Level.CONFIG,
        "set lookup locators {0}",

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      if (groups == null || groups.length > 0) {
    throw new ConfigurationException(
        "discoveryManager must be initially configured with " +
        "no groups");
      }
      DiscoveryLocatorManagement dlm =
    (DiscoveryLocatorManagement) discoer;
      if (dlm.getLocators().length > 0) {
    throw new ConfigurationException(
        "discoveryManager must be initially configured with " +
        "no locators");
      }
      dgm.setGroups(lookupGroups);
      dlm.setLocators(lookupLocators);
  } catch (ClassCastException e) {
      throw new ConfigurationException(null, e);
  }
  joiner = new JoinManager(proxy, lookupAttrs, myServiceID,
         discoer, null, config);

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            } catch(IOException e) {
                logger.warn( "Getting DiscoveryManagement", e);
                return(new LookupLocator[0]);
            }
        }
        DiscoveryLocatorManagement dlm = (DiscoveryLocatorManagement)dm;
        return(dlm.getLocators());        
    }

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    public void addLookupLocators(LookupLocator[] locators) {
        JoinManager mgr = service.getJoinManager();
        if(mgr!=null) {
            DiscoveryManagement dm = mgr.getDiscoveryManager();
            DiscoveryLocatorManagement dlm = (DiscoveryLocatorManagement)dm;
            dlm.addLocators(locators);
            if(snapshotHandler!=null) {
                try {
                    snapshotHandler.takeSnapshot();
                } catch(IOException ioe) {
                    logger.warn( "Persisting Added LookupLocators", ioe);
                }
            }
            /* Update ServiceBeanConfig */
            setLocators(dlm.getLocators());
        } else
            logger.warn("JoinManager is null");
    }

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    public void removeLookupLocators(LookupLocator[] locators) {
        JoinManager mgr = service.getJoinManager();
        if(mgr!=null) {
            DiscoveryManagement dm = mgr.getDiscoveryManager();
            DiscoveryLocatorManagement dlm = (DiscoveryLocatorManagement)dm;
            dlm.removeLocators(locators);
            if(snapshotHandler!=null) {
                try {
                    snapshotHandler.takeSnapshot();
                } catch(IOException ioe) {
                    logger.warn("Persisting removed LookupLocators", ioe);
                }
            }
            /* Update ServiceBeanConfig */
            setLocators(dlm.getLocators());
        } else
            logger.warn("JoinManager is null");
    }

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    public void setLookupLocators(LookupLocator[] locators) {
        JoinManager mgr = service.getJoinManager();
        if(mgr!=null) {
            DiscoveryManagement dm = mgr.getDiscoveryManager();
            DiscoveryLocatorManagement dlm = (DiscoveryLocatorManagement)dm;
            dlm.setLocators(locators);
            if(snapshotHandler!=null) {
                try {
                    snapshotHandler.takeSnapshot();
                } catch(IOException ioe) {
                    logger.warn("Persisting LookupLocators", ioe);
                }
            }
            /* Update ServiceBeanConfig */
            setLocators(dlm.getLocators());
        } else
            logger.warn("JoinManager is null");
    }

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                oostream.writeObject(groups);
            } else {
                oostream.writeObject(new String[0]);
            }
            if(discoMgmt instanceof DiscoveryLocatorManagement) {
                DiscoveryLocatorManagement dlm = (DiscoveryLocatorManagement)discoMgmt;
                oostream.writeObject(dlm.getLocators());
            } else {
                oostream.writeObject(new LookupLocator[0]);
            }
            oostream.flush();
        }

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