Java Entry类代码示例

import net.jini.core.entry.Entry; //导入依赖的package包/类
private TransactionManager findTransactionManager(String uri) throws IOException, ClassNotFoundException {
    if (System.getSecurityManager() == null) {
        System.setSecurityManager(new RMISecurityManager());
    }

    // Creating service template to find transaction manager service by matching fields.
    Class<?>[] classes = new Class<?>[] {net.jini.core.transaction.server.TransactionManager.class};
    // Name sn = new Name("*");
    ServiceTemplate tmpl = new ServiceTemplate(null, classes, new Entry[] {});

    // Creating a lookup locator
    LookupLocator locator = new LookupLocator(uri);
    ServiceRegistrar sr = locator.getRegistrar();

    TransactionManager tm = (TransactionManager) sr.lookup(tmpl);
    return tm;
}
 

import net.jini.core.entry.Entry; //导入依赖的package包/类
/**
 * Override initialize to perform additional initialization
 */
@Override
public void initialize(ServiceBeanContext context) throws Exception {

    /* Initialize super class */
    super.initialize(context);

    /* Get the JMX Service URL */
    Entry jmxEntry = JMXUtilities.createJMXConnectionAttribute(context.getServiceElement().getName());
    if (jmxEntry!= null)
        addAttribute(jmxEntry);

    if (quiesceDetails != null) {
        if (quiesceDetails.getStatus().equals(QuiesceState.QUIESCED)) {
            QuiesceStateChangedEvent event = new QuiesceStateChangedEvent(quiesceDetails.getStatus() , quiesceDetails.getToken(), quiesceDetails.getDescription());
            informQuiesceToListeners(event);
        }
    }

}
 

import net.jini.core.entry.Entry; //导入依赖的package包/类
private UIDescriptor getSelectedUIDescriptor() {

            if (!(new ServiceListItem(item)).isUI()) {
                return null;
            }

            Entry[] attrs = item.attributeSets;
            if ((attrs != null) && (attrs.length != 0)) {
                for (int i = 0; i < attrs.length; i++) {
                    if (attrs[i] instanceof UIDescriptor) {
                        UIDescriptor desc = (UIDescriptor) attrs[i];
                        if (!"javax.swing".equals(desc.toolkit)) {
                            continue;
                        }
                        return desc;
                    }
                }
            }
            return null;
        }
 

import net.jini.core.entry.Entry; //导入依赖的package包/类
protected Entry[] getEntryArray() {
     try{
ServiceMatches matches = registrar.lookup(new ServiceTemplate(item.serviceID,
							      new Class[] { item.service.getClass() },
							      new Entry[] {}),
					  10);
if(matches.totalMatches != 1)
  Browser.logger.log(Level.INFO, "unexpected lookup matches: {0}",
		     new Integer(matches.totalMatches));
else
  return matches.items[0].attributeSets;
     } catch (Throwable t) {
Browser.logger.log(Level.INFO, "lookup failed", t);
     }
     return null;
   }
 

import net.jini.core.entry.Entry; //导入依赖的package包/类
protected void initTree() {
   Entry[] entries = getEntryArray();
   if(entries == null)
     entries = new Entry[0];

   for(int i = 0; i < entries.length; i++){
     // check controllability
     boolean nodeControllable = false;
     if(isControllable && ! (entries[i] instanceof net.jini.lookup.entry.ServiceControlled)) {
nodeControllable = true;
     }

     ObjectNode node = new ObjectNode(entries[i], nodeControllable);
     root.add(node);
     try {
recursiveObjectTree(node);
     } catch(IllegalAccessException e){
Browser.logger.log(Level.INFO, "entry access failed", e);
     }
   }
 }
 

import net.jini.core.entry.Entry; //导入依赖的package包/类
private Entry cloneEntry(Entry attr) {
     try {
Class realClass = attr.getClass();
Entry template = (Entry) realClass.newInstance();

Field[] f = realClass.getFields();
for(int i = 0; i < f.length; i++) {
  if(! usableField(f[i]))
    continue;
  f[i].set(template, f[i].get(attr));
}

return template;
     } catch (Throwable t) {
logger.log(Level.INFO, "duplicating entry failed", t);
     }
     return null;
   }
 

import net.jini.core.entry.Entry; //导入依赖的package包/类
/**
 * Returns the list of available providers in this catalog.
 * 
 * @return
 * @throws RemoteException
 */
@Override
public String[] getProviderList() throws RemoteException {
	List<ServiceItem> items = cinfo.getAllServiceItems();

	List<String> names = new ArrayList<String>();
	for (ServiceItem si : items) {
			Entry[] attributes = si.attributeSets;
			for (Entry a : attributes) {
				if (a instanceof Name) {
					names.add(((Name) a).name);
					break;
				}
			}
		}
	return names.toArray(new String[names.size()]);
}
 

import net.jini.core.entry.Entry; //导入依赖的package包/类
public String toString() {
	StringBuilder sb = new StringBuilder();
	List<ServiceItem> sItems;
	for(Map.Entry<InterfaceList, List<ServiceItem>> entry : interfaceListMap.entrySet()){
		sItems = entry.getValue();
		sb.append("\n");
		if (sItems != null && sItems.size() > 0
				&& sItems.get(0) != null) {
			if (sItems.get(0).attributeSets[0] instanceof Name)
				sb.append(((Name) (sItems.get(0).attributeSets[0])).name);
			else
				sb.append(sItems.get(0).attributeSets[0]);

			for (int i = 1; i < sItems.size(); i++) {
				if (sItems.get(i).attributeSets[0] instanceof Name)
					sb.append(",").append(((Name) (sItems.get(i).attributeSets[0])).name);
				else
					sb.append(",").append(sItems.get(i).attributeSets[0]);
			}
			sb.append("==>\n");
			sb.append(entry.getKey());
		}
	}
	return sb.toString();
}
 

import net.jini.core.entry.Entry; //导入依赖的package包/类
private void listCommands() {
	shellOutput
			.println("You can manage the environment and interact with the service network using the following commands:");
	StringBuilder buffer = new StringBuilder();
	for (Map.Entry<String, ShellCmd> e : commandTable.entrySet()) {
		buffer.append("\n\t" + e.getKey());
		if (e.getKey().length() > 5)
			buffer.append(": \t" + e.getValue().getUsage(e.getKey()));
		else
			buffer.append(": \t\t" + e.getValue().getUsage(e.getKey()));
	}
	shellOutput.println(buffer.toString());
	shellOutput
			.println("\nFor help on any of these commands fiType 'help [<command>]'."
					+ "\nTo leave this program fiType 'quit'");
}
 

import net.jini.core.entry.Entry; //导入依赖的package包/类
static public void printLookupAttributes(Entry[] attributeSets)
		throws IOException, ClassNotFoundException {
	if (attributeSets.length > 0) {
		PrintStream out = NetworkShell.getShellOutputStream();
		out.println("Lookup attributes:");
		for (int k = 0; k < attributeSets.length; k++) {
			if (attributeSets[k] instanceof UIDescriptor) {
				out.println("  "
				// + attributeSets[k].getClass()
				// + "UIDescriptor: "
						+ ((UIDescriptor) attributeSets[k]).factory
								.get());
			} else if (attributeSets[k] instanceof SorcerServiceInfo) {
				printSorcerServiceInfo((SorcerServiceInfo) attributeSets[k]);
			} else {
				if (attributeSets[k] instanceof AbstractEntry) {
					out.println("  "
							+ toShortString((AbstractEntry) attributeSets[k]));
				} else {
					out.println("  " + attributeSets[k]);
				}
			}
		}
	}
}
 

import net.jini.core.entry.Entry; //导入依赖的package包/类
private void takeAll() {
	if (selectedSpace >= 0) {
		javaSpace = (JavaSpace05) spaces[0].service;
	} else {
		out.print("no Space selected");
		return;
	}
	ExertionEnvelop ee = new ExertionEnvelop();
	for (Entry e : instanceList) {
		ee.exertionID = ((ExertionEnvelop) e).exertionID;
		try {
			javaSpace.take(ee, null, JavaSpace.NO_WAIT);
		} catch (Exception ex) {
			ex.printStackTrace();
		}
	}
	instanceList.clear();
	selectedExertion = -1;
}
 

import net.jini.core.entry.Entry; //导入依赖的package包/类
static private void describeService(int index, String msg) throws IOException,
		ClassNotFoundException {
       out.println(ansi().render("@|blue ---------" + (msg != null ? " " + msg : "")
               + "|@ @|bold,blue SERVICE # " +index + "|@ @|blue ---------|@"));
       out.println(ansi().render("ID: @|white " + serviceItems.get(index).serviceID + "|@"));
       printServiceName(serviceItems.get(index));
	Class myCls = serviceItems.get(index).service.getClass();
	out.println("Proxy class: " + myCls);
	Class[] allIntf = myCls.getInterfaces();
	out.println("Interfaces: ");
	//Class[] allIntf = myCls.printAllInterfaces();
	for (int k = 0; k < allIntf.length; k++)
		out.println("  " + allIntf[k].getName());
	printCodebaseURL(serviceItems.get(index));
	Entry[] attributeSets = serviceItems.get(index).attributeSets;
	if (attributeSets != null && attributeSets.length > 0) {
			NetworkShell.printLookupAttributes(attributeSets);
			// for (int i = 0; i < attributeSets.length - 1; i++) {
			// out.println("  - " + attributeSets[i]);
			// }
	}
}
 

import net.jini.core.entry.Entry; //导入依赖的package包/类
/**
 * Locates a service via Unicast discovery
 * 
 * @param lusHost
 * @param serviceClass
 * @param serviceName
 * @return proxy or <code>null</code>
 * @throws java.net.MalformedURLException
 * @throws java.io.IOException
 * @throws ClassNotFoundException
 */
public static Object getService(String lusHost, Class serviceClass, Class[] matchTypes,
								String serviceName) throws
		java.io.IOException, ClassNotFoundException {

	Class[] types =  new Class[] { serviceClass };
	if (matchTypes != null && matchTypes.length > 0) {
		operator.ParTypes allTypes = new ParTypes(serviceClass, matchTypes);
		types = allTypes.parameterTypes;
	}

	Entry[] entry = null;

	if (serviceName != null) {
		entry = new Entry[] { new Name(serviceName) };
	}

	ServiceTemplate template = new ServiceTemplate(null, types, entry);
	LookupLocator loc = new LookupLocator("jini://" + lusHost);
	ServiceRegistrar reggie = loc.getRegistrar();

	return reggie.lookup(template);
}
 

import net.jini.core.entry.Entry; //导入依赖的package包/类
@Override
public <T> T getService(final String serviceName, Class<T> serviceType) {
	T proxy = null;
       String name = overrideName(serviceName, serviceType);

	int tryNo = 0;
	while (tryNo < LUS_REPEAT) {
		logger.info("trying to get service: {}: {}; attempt: {}...", serviceType, name, tryNo);
		try {
			tryNo++;
			proxy = getService(serviceType, new Entry[] { new Name(name) }, null);
			if (proxy != null)
				break;

			Thread.sleep(WAIT_FOR);
		} catch (Exception e) {
			logger.error("Failed trying to get {} {}", name, serviceType.getName(), e);
		}
	}
	logger.info("got LUS service [fiType={} name={}]: {}", serviceType.getName(), name, proxy);
	return proxy;
}
 

import net.jini.core.entry.Entry; //导入依赖的package包/类
private void checkNullName(ServiceTemplate template) {
    if (template.attributeSetTemplates == null)
        return;
    for (Entry attr : template.attributeSetTemplates) {
        if (attr instanceof Name) {
            Name name = (Name) attr;
            if (ANY.equals(name.name)) {
                name.name = null;
                logger.warn("Requested service with name '*'", new IllegalArgumentException());
            }
        } else if (attr instanceof SorcerServiceInfo) {
            SorcerServiceInfo info = (SorcerServiceInfo) attr;
            if (ANY.equals(info.providerName)) {
                info.providerName = null;
                logger.warn("Requested service with name '*'", new IllegalArgumentException());
            }
        }
    }
}