Java SendResult类代码示例

import javax.websocket.SendResult; //导入依赖的package包/类
/**
 * Make the session aware of a {@link FutureToSendHandler} that will need to
 * be forcibly closed if the session closes before the
 * {@link FutureToSendHandler} completes.
 */
protected void registerFuture(FutureToSendHandler f2sh) {
    boolean fail = false;
    synchronized (stateLock) {
        // If the session has already been closed the any registered futures
        // will have been processed so the failure result for this future
        // needs to be set here.
        if (state == State.OPEN || f2sh.isCloseMessage()) {
            // WebSocket session is open or this is the close message
            futures.put(f2sh, f2sh);
        } else if (f2sh.isDone()) {
            // NO-OP. The future completed before the session closed so no
            // need to register in case the session closes before it
            // completes.
        } else {
            // Construct the exception outside of the sync block
            fail = true;
        }
    }

    if (fail) {
        IOException ioe = new IOException(sm.getString("wsSession.messageFailed"));
        SendResult sr = new SendResult(ioe);
        f2sh.onResult(sr);
    }
}
 

import javax.websocket.SendResult; //导入依赖的package包/类
public void broadcast(@Observes @LeaderDataQualifier String leaderboard) {
    for (final Session s : CLIENTS) {
        if (s != null && s.isOpen()) {
            /**
             * Asynchronous push
             */
            s.getAsyncRemote().sendText(leaderboard, new SendHandler() {
                @Override
                public void onResult(SendResult result) {
                    if (result.isOK()) {
                        //Logger.getLogger(MeetupGroupsLiveLeaderboardEndpoint.class.getName()).log(Level.INFO, " sent to client {0}", s.getId());
                    } else {
                        Logger.getLogger(MeetupGroupsLiveLeaderboardEndpoint.class.getName()).log(Level.SEVERE, "Could not send to client " + s.getId(),
                                result.getException());
                    }
                }
            });
        }

    }

}
 

import javax.websocket.SendResult; //导入依赖的package包/类
/**
 * Make the session aware of a {@link FutureToSendHandler} that will need to
 * be forcibly closed if the session closes before the
 * {@link FutureToSendHandler} completes.
 */
protected void registerFuture(FutureToSendHandler f2sh) {
	boolean fail = false;
	synchronized (stateLock) {
		// If the session has already been closed the any registered futures
		// will have been processed so the failure result for this future
		// needs to be set here.
		if (state == State.OPEN || f2sh.isCloseMessage()) {
			// WebSocket session is open or this is the close message
			futures.put(f2sh, f2sh);
		} else if (f2sh.isDone()) {
			// NO-OP. The future completed before the session closed so no
			// need to register in case the session closes before it
			// completes.
		} else {
			// Construct the exception outside of the sync block
			fail = true;
		}
	}

	if (fail) {
		IOException ioe = new IOException(sm.getString("wsSession.messageFailed"));
		SendResult sr = new SendResult(ioe);
		f2sh.onResult(sr);
	}
}
 

import javax.websocket.SendResult; //导入依赖的package包/类
@Override
public void onResult(SendResult result) {
    if (!result.isOK()) {
        // Message could not be sent. In this case, we don't
        // set isSendingMessage to false because we must assume the connection
        // broke (and onClose will be called), so we don't try to send
        // other messages.
        // As a precaution, we close the session (e.g. if a send timeout occured).
        // TODO: session.close() blocks, while this handler shouldn't block.
        // Ideally, there should be some abort() method that cancels the
        // connection immediately...
        try {
            session.close();
        } catch (IOException ex) {
            // Ignore
        }
    }
}
 

import javax.websocket.SendResult; //导入依赖的package包/类
public void onOpen(final Session session, EndpointConfig endpointConfig) {
	session.getAsyncRemote().sendText(
			"Client Success!Your id is: " + session.getId());
	session.addMessageHandler(new MessageHandler.Whole<String>() {
		@Override
		public void onMessage(String message) {
			session.getAsyncRemote().sendObject(message, new SendHandler() {
				@Override
				public void onResult(SendResult result) {
					System.out.println(session.getId() + ":"
							+ result.isOK());
				}
			});
		}
	});
}
 

import javax.websocket.SendResult; //导入依赖的package包/类
/** 
     * sendMessage is executed snychronously to avoid tomcat nativelib crashes.  
     * @param session
     * @param message
     * @param handler 
     */
    public synchronized static void sendMessage(final Session session, final String message, final SendHandler handler) {
//        synchronized (session) {
            try {
                session.getBasicRemote().sendText(message);
                handler.onResult(new SendResult());
            } catch (IOException ex) {
                Logger.getLogger(WebSocket.class.getName()).log(Level.SEVERE, null, ex);
                handler.onResult(new SendResult(ex));
                try {
                    //close broken session
                    session.close();
                } catch (IOException ex1) {
                    Logger.getLogger(WebSocket.class.getName()).log(Level.SEVERE, null, ex1);
                }
            }
//        }
//        }
    }
 

import javax.websocket.SendResult; //导入依赖的package包/类
@OnMessage
public void onWebSocketText(String message)
{
    System.out.println("Received TEXT message: " + message);
    try {
    	if ((session != null) && (session.isOpen()))
        {
            System.out.println("Echoing back text message "+message);
            session.getAsyncRemote().sendText("Received: "+message,new SendHandler(){

	@Override
	public void onResult(SendResult arg0) {
		if (!arg0.isOK()){
			System.out.println("Error Sending Response: "+arg0.getException().getMessage());
		}
	}
            	
            });
        }
    } catch (Exception e){
    	System.out.println("Error: "+e.getMessage());
    	e.printStackTrace();
    }
}
 

import javax.websocket.SendResult; //导入依赖的package包/类
@Override
public void writeData(ByteBuffer data) {
	if (!this.isConnected()) {
		System.err.println("attempted to write before connection is open.");
		return;
	}
	new Thread(() -> 
	this.dataSession.getAsyncRemote().sendBinary(data, new SendHandler() {
		@Override
		public void onResult(SendResult arg0) {
			RemoteP2PConnection.this.executor.execute(new Runnable() {
				@Override
				public void run() {
					if (RemoteP2PConnection.this.handler != null) RemoteP2PConnection.this.handler.onDataSent(RemoteP2PConnection.this);
				}
			});
		}
	})).start();
}
 

import javax.websocket.SendResult; //导入依赖的package包/类
@Override
public void onOpen(final Session session, EndpointConfig ec) {
    session.addMessageHandler(new MessageHandler.Whole<String>() {

        @Override
        public void onMessage(String data) {
            System.out.println("Received (MyEndpointHandler) : " + data);

            session.getAsyncRemote().sendText(data, new SendHandler() {

                @Override
                public void onResult(SendResult sr) {
                    if (sr.isOK()) {
                        System.out.println("Message written to the socket (handler)");
                    } else {
                        System.out.println("Message NOT written to the socket (handler)");
                        sr.getException().printStackTrace();
                    }

                }
            });
        }
    });
}
 

import javax.websocket.SendResult; //导入依赖的package包/类
/**
 * WebSocket 1.0. Section 2.1.5.
 * Need internal close method as spec requires that the local endpoint
 * receives a 1006 on timeout.
 */
public void doClose(CloseReason closeReasonMessage,
        CloseReason closeReasonLocal) {
    // Double-checked locking. OK because state is volatile
    if (state != State.OPEN) {
        return;
    }

    synchronized (stateLock) {
        if (state != State.OPEN) {
            return;
        }

        if (log.isDebugEnabled()) {
            log.debug(sm.getString("wsSession.doClose", id));
        }
        try {
            wsRemoteEndpoint.setBatchingAllowed(false);
        } catch (IOException e) {
            log.warn(sm.getString("wsSession.flushFailOnClose"), e);
            fireEndpointOnError(e);
        }

        state = State.OUTPUT_CLOSED;

        sendCloseMessage(closeReasonMessage);
        fireEndpointOnClose(closeReasonLocal);
    }

    IOException ioe = new IOException(sm.getString("wsSession.messageFailed"));
    SendResult sr = new SendResult(ioe);
    for (FutureToSendHandler f2sh : futures.keySet()) {
        f2sh.onResult(sr);
    }
}
 

import javax.websocket.SendResult; //导入依赖的package包/类
void endMessage(SendHandler handler, SendResult result) {
    boolean doWrite = false;
    MessagePart mpNext = null;
    synchronized (messagePartLock) {

        fragmented = nextFragmented;
        text = nextText;

        mpNext = messagePartQueue.poll();
        if (mpNext == null) {
            messagePartInProgress = false;
        } else if (!closed){
            // Session may have been closed unexpectedly in the middle of
            // sending a fragmented message closing the endpoint. If this
            // happens, clearly there is no point trying to send the rest of
            // the message.
            doWrite = true;
        }
    }
    if (doWrite) {
        // Actual write has to be outside sync block to avoid possible
        // deadlock between messagePartLock and writeLock in
        // o.a.coyote.http11.upgrade.AbstractServletOutputStream
        writeMessagePart(mpNext);
    }

    wsSession.updateLastActive();

    // Some handlers, such as the IntermediateMessageHandler, do not have a
    // nested handler so handler may be null.
    if (handler != null) {
        handler.onResult(result);
    }
}
 

import javax.websocket.SendResult; //导入依赖的package包/类
@Override
public void onResult(SendResult result) {
    if (isDone) {
        endpoint.stateMachine.complete(isLast);
        handler.onResult(result);
    } else if(!result.isOK()) {
        handler.onResult(result);
    } else if (closed){
        SendResult sr = new SendResult(new IOException(
                sm.getString("wsRemoteEndpoint.closedDuringMessage")));
        handler.onResult(sr);
    } else {
        write();
    }
}
 

import javax.websocket.SendResult; //导入依赖的package包/类
/**
 *
 * @param t             The throwable associated with any error that
 *                      occurred
 * @param useDispatch   Should {@link SendHandler#onResult(SendResult)} be
 *                      called from a new thread, keeping in mind the
 *                      requirements of
 *                      {@link javax.websocket.RemoteEndpoint.Async}
 */
private void clearHandler(Throwable t, boolean useDispatch) {
    // Setting the result marks this (partial) message as
    // complete which means the next one may be sent which
    // could update the value of the handler. Therefore, keep a
    // local copy before signalling the end of the (partial)
    // message.
    SendHandler sh = handler;
    handler = null;
    buffers = null;
    if (sh != null) {
        if (useDispatch) {
            OnResultRunnable r = onResultRunnables.poll();
            if (r == null) {
                r = new OnResultRunnable(onResultRunnables);
            }
            r.init(sh, t);
            if (executorService == null || executorService.isShutdown()) {
                // Can't use the executor so call the runnable directly.
                // This may not be strictly specification compliant in all
                // cases but during shutdown only close messages are going
                // to be sent so there should not be the issue of nested
                // calls leading to stack overflow as described in bug
                // 55715. The issues with nested calls was the reason for
                // the separate thread requirement in the specification.
                r.run();
            } else {
                executorService.execute(r);
            }
        } else {
            if (t == null) {
                sh.onResult(new SendResult());
            } else {
                sh.onResult(new SendResult(t));
            }
        }
    }
}
 

import javax.websocket.SendResult; //导入依赖的package包/类
@Override
public void run() {
    if (t == null) {
        sh.onResult(new SendResult());
    } else {
        sh.onResult(new SendResult(t));
    }
    t = null;
    sh = null;
    // Return the Runnable to the queue when it has been finished with
    // Note if this method takes an age to finish there shouldn't be any
    // thread safety issues as the fields are cleared above.
    queue.add(this);
}
 

import javax.websocket.SendResult; //导入依赖的package包/类
@Override
public void onResult(SendResult result) {
    if (!result.isOK()) {
        // Message could not be sent. In this case, we don't
        // set isSendingMessage to false because we must assume the connection
        // broke (and onClose will be called), so we don't try to send
        // other messages.
        // As a precaution, we close the session (e.g. if a send timeout occured).
        // TODO: session.close() blocks, while this handler shouldn't block.
        // Ideally, there should be some abort() method that cancels the
        // connection immediately...
        try {
            session.close();
        } catch (IOException ex) {
            // Ignore
        }
    }
    synchronized (messagesToSend) {

        if (!messagesToSend.isEmpty()) {
            AbstractWebsocketMessage msg = messagesToSend.remove();
            messagesToSendLength -= calculateMessageLength(msg);

            internalSendMessageAsync(msg);

        } else {
            isSendingMessage = false;
        }

    }
}