javax.naming.Context#unbind ( )源码实例Demo

/** 
 * Unbinds a name from ctx, and removes parents if they are empty
 * @param ctx the parent JNDI Context under which the name will be unbound
 * @param name The name to unbind
 * @throws NamingException for any error
 */
private static void unbind(Context ctx, Name name) throws NamingException
{
   ctx.unbind(name); //unbind the end node in the name
   int sz = name.size();
   // walk the tree backwards, stopping at the domain
   while (--sz > 0)
   {
      Name pname = name.getPrefix(sz);
      try
      {
         ctx.destroySubcontext(pname);
      }
      catch (NamingException e)
      {
         log.tracef("Unable to remove context: %s (%s)", pname, e);
         break;
      }
   }
}
 

public static void removeInstance(String uid, String name, Properties properties) {
	//TODO: theoretically non-threadsafe...

	if (name!=null) {
		log.info("Unbinding factory from JNDI name: " + name);

		try {
			Context ctx = NamingHelper.getInitialContext(properties);
			ctx.unbind(name);
			log.info("Unbound factory from JNDI name: " + name);
		}
		catch (InvalidNameException ine) {
			log.error("Invalid JNDI name: " + name, ine);
		}
		catch (NamingException ne) {
			log.warn("Could not unbind factory from JNDI", ne);
		}

		NAMED_INSTANCES.remove(name);

	}

	INSTANCES.remove(uid);

}
 

/** 
 * Unbinds a name from ctx, and removes parents if they are empty
 * @param ctx the parent JNDI Context under which the name will be unbound
 * @param name The name to unbind
 * @throws NamingException for any error
 */
private static void unbind(Context ctx, Name name) throws NamingException
{
   ctx.unbind(name); //unbind the end node in the name
   int sz = name.size();
   // walk the tree backwards, stopping at the domain
   while (--sz > 0)
   {
      Name pname = name.getPrefix(sz);
      try
      {
         ctx.destroySubcontext(pname);
      }
      catch (NamingException e)
      {
         log.tracef("Unable to remove context: %s (%s)", pname, e);
         break;
      }
   }
}
 

/**
 * Stop
 * @exception Throwable Thrown if an error occurs
 */
public void stop() throws Throwable
{
   Context context = new InitialContext();

   context.unbind(JNDI_NAME);

   context.close();
}
 

/**
 * Stop
 * @exception Throwable Thrown if an error occurs
 */
public void stop() throws Throwable
{
   Context context = new InitialContext();

   context.unbind(JNDI_NAME);

   context.close();
}
 

/**
 * Stop
 * @exception Throwable Thrown if an error occurs
 */
public void stop() throws Throwable
{
   Context context = new InitialContext();

   context.unbind(JNDI_NAME);

   context.close();
}
 

/**
 * Removes all entries from the specified context, including subcontexts.
 * 
 * @param context context ot clear
 */
private void clearContext(Context context)
throws NamingException {
  
  for (NamingEnumeration e = context.listBindings(""); e
  .hasMoreElements();) {
    Binding binding = (Binding) e.nextElement();
    if (binding.getObject() instanceof Context) {
      clearContext((Context) binding.getObject());
    }
    context.unbind(binding.getName());
  }
  
}
 

public void stop() throws Exception
{
   if (m_isRunning)
   {
      PortableRemoteObject.unexportObject(this);
      Context ctx = new InitialContext();
      ctx.unbind(IIOP_JNDI_NAME);
      m_isRunning = false;
      System.out.println("My Service Servant stopped successfully");
   }
}
 

/**
 * Removes all entries from the specified context, including subcontexts.
 * 
 * @param context context ot clear
 */
private void clearContext(Context context)
throws NamingException {
  
  for (NamingEnumeration e = context.listBindings(""); e
  .hasMoreElements();) {
    Binding binding = (Binding) e.nextElement();
    if (binding.getObject() instanceof Context) {
      clearContext((Context) binding.getObject());
    }
    context.unbind(binding.getName());
  }
  
}
 

public static void tearDownRecursively(final Context c) throws Exception {
   for (NamingEnumeration<Binding> ne = c.listBindings(""); ne.hasMore(); ) {
      Binding b = ne.next();
      String name = b.getName();
      Object object = b.getObject();
      if (object instanceof Context) {
         JNDIUtil.tearDownRecursively((Context) object);
      }
      c.unbind(name);
   }
}
 

public static void unbindSessionManager(final String jndiName) {
    LOG.info("Unbinding Hibersap SessionManager from JNDI name '" + jndiName + "'");

    try {
        Context ctx = new InitialContext();
        ctx.unbind(jndiName);
    } catch (NamingException e) {
        LOG.warn("Failed to unbind Hibersap SessionManager binding for JNDI name [" + jndiName + "]", e);
    }
}
 

@Test(expected = OperationNotSupportedException.class)
public void testContextPreventsUnbind() throws Exception {
    Hashtable<Object, Object> env = new Hashtable<Object, Object>();
    Context ctx = createInitialContext(env);

    ctx.unbind("lookupName");
}
 

/**
 * Stop
 * @exception Throwable Thrown if an error occurs
 */
public void stop() throws Throwable
{
   Context context = new InitialContext();

   context.unbind(JNDI_NAME);

   context.close();
}
 

/**
 * Stop
 * @exception Throwable Thrown if an error occurs
 */
public void stop() throws Throwable
{
   Context context = new InitialContext();

   context.unbind(JNDI_NAME);

   context.close();
}
 

/**
 * Stop
 * @exception Throwable Thrown if an error occurs
 */
public void stop() throws Throwable
{
   Context context = new InitialContext();

   context.unbind(JNDI_NAME);

   context.close();
}
 

public void unbind(String name) throws NamingException {
	if (name == null) {
	  throw new IllegalArgumentException("Name required");
	}
	if (name.length() == 0) {
	  throw new InvalidNameException("Cannot unbind object named after context");
	}

	// See if it's an aliased name
	if (aliases.containsKey(name)) {
		aliases.remove(name);
		return;
	}

	boolean unbound = false;
  for (Object context : contexts) {
	Context c = (Context) context;
	try {
	  c.unbind(name);
	  unbound = true;
	} catch (NamingException ignore) {
	}
  }
	if (!unbound) {
	  throw new InvalidNameException("Name \"" + name + "\" not compatible with any managed subcontext");
	}
}
 

private void unbind(final Context context, final String name) {
    try {
        context.unbind(name);
    } catch (final NamingException e) {
        // no-op
    }
}
 

private void assertBeanBinding(WildFlyCamelContext camelctx) throws NamingException, Exception {

        InitialContext inicxt = new InitialContext();
        String bindingName = CamelConstants.CAMEL_CONTEXT_BINDING_NAME + "/" + camelctx.getName();

        Context jndictx = camelctx.getNamingContext();
        jndictx.bind("helloBean", new HelloBean());
        try {
            camelctx.addRoutes(new RouteBuilder() {
                @Override
                public void configure() throws Exception {
                    from("direct:start").bean("helloBean");
                }
            });

            camelctx.start();
            try {

                // Assert that the context is bound into JNDI after start
                CamelContext lookup = (CamelContext) inicxt.lookup(bindingName);
                Assert.assertSame(camelctx, lookup);

                ProducerTemplate producer = camelctx.createProducerTemplate();
                String result = producer.requestBody("direct:start", "Kermit", String.class);
                Assert.assertEquals("Hello Kermit", result);
            } finally {
                camelctx.close();
            }

            // Assert that the context is unbound from JNDI after stop
            Assert.assertTrue("Expected " + bindingName + " to be unbound", awaitUnbinding(inicxt, bindingName));
        } finally {
            jndictx.unbind("helloBean");
            Assert.assertTrue("Expected java:/helloBean to be unbound", awaitUnbinding(jndictx, "helloBean"));
        }
    }
 

private void destroyLookedUpResource(final Context globalContext, final String id, final String name) throws NamingException {

        final Object object;

        try {
            object = globalContext.lookup(name);
        } catch (final NamingException e) {
            // if we catch a NamingException, check to see if the resource is a LaztObjectReference that has not been initialized correctly
            final String ctx = name.substring(0, name.lastIndexOf('/'));
            final String objName = name.substring(ctx.length() + 1);
            final NamingEnumeration<Binding> bindings = globalContext.listBindings(ctx);
            while (bindings.hasMoreElements()) {
                final Binding binding = bindings.nextElement();
                if (!binding.getName().equals(objName)) {
                    continue;
                }

                if (!LazyObjectReference.class.isInstance(binding.getObject())) {
                    continue;
                }

                final LazyObjectReference<?> ref = LazyObjectReference.class.cast(binding.getObject());
                if (! ref.isInitialized()) {
                    globalContext.unbind(name);
                    removeResourceInfo(name);
                    return;
                }
            }

            throw e;
        }

        final String clazz;
        if (object == null) { // should it be possible?
            clazz = "?";
        } else {
            clazz = object.getClass().getName();
        }
        destroyResource(id, clazz, object);
        globalContext.unbind(name);
    }