InstJsrServerEndpointImpl.java 文件源码

@Override
public EventDriver create(Object websocket, WebSocketPolicy policy) throws Throwable {
    if (!(websocket instanceof EndpointInstance)) {
        throw new IllegalStateException(String.format("Websocket %s must be an %s", websocket.getClass().getName(), EndpointInstance.class.getName()));
    }

    EndpointInstance ei = (EndpointInstance) websocket;
    AnnotatedServerEndpointMetadata metadata = (AnnotatedServerEndpointMetadata) ei.getMetadata();
    JsrEvents<ServerEndpoint, ServerEndpointConfig> events = new JsrEvents<>(metadata);

    // Handle @OnMessage maxMessageSizes
    int maxBinaryMessage = getMaxMessageSize(policy.getMaxBinaryMessageSize(), metadata.onBinary, metadata.onBinaryStream);
    int maxTextMessage = getMaxMessageSize(policy.getMaxTextMessageSize(), metadata.onText, metadata.onTextStream);

    policy.setMaxBinaryMessageSize(maxBinaryMessage);
    policy.setMaxTextMessageSize(maxTextMessage);

    //////// instrumentation is here
    JsrAnnotatedEventDriver driver = new InstJsrAnnotatedEventDriver(policy, ei, events, metrics);
    ////////

    // Handle @PathParam values
    ServerEndpointConfig config = (ServerEndpointConfig) ei.getConfig();
    if (config instanceof PathParamServerEndpointConfig) {
        PathParamServerEndpointConfig ppconfig = (PathParamServerEndpointConfig) config;
        driver.setPathParameters(ppconfig.getPathParamMap());
    }

    return driver;
}