Java Code Examples for io.netty.util.internal.StringUtil#isNullOrEmpty()

@Override
public void beforeRequest(Channel clientChannel, HttpRequest httpRequest, HttpProxyInterceptPipeline pipeline) throws Exception {
  String acceptValue = httpRequest.headers().get(HttpHeaderNames.ACCEPT);
  if (acceptValue != null && acceptValue.contains("application/x-sniff-cookie")) {
    HttpResponse httpResponse = new DefaultHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK, new DefaultHttpHeaders());
    httpResponse.headers().set(HttpHeaderNames.CONTENT_LENGTH, 0);
    //https://developer.mozilla.org/zh-CN/docs/Web/HTTP/Headers/Access-Control-Expose-Headers
    AsciiString customHeadKey = AsciiString.cached("X-Sniff-Cookie");
    String cookie = pipeline.getHttpRequest().headers().get(HttpHeaderNames.COOKIE);
    httpResponse.headers().set(customHeadKey, cookie == null ? "" : cookie);
    httpResponse.headers().set(HttpHeaderNames.ACCESS_CONTROL_EXPOSE_HEADERS, customHeadKey);
    String origin = httpRequest.headers().get(HttpHeaderNames.ORIGIN);
    if (StringUtil.isNullOrEmpty(origin)) {
      String referer = httpRequest.headers().get(HttpHeaderNames.REFERER);
      URL url = new URL(referer);
      origin = url.getHost();
    }
    httpResponse.headers().set(HttpHeaderNames.ACCESS_CONTROL_ALLOW_ORIGIN, origin);
    httpResponse.headers().set(HttpHeaderNames.ACCESS_CONTROL_ALLOW_CREDENTIALS, true);
    clientChannel.writeAndFlush(httpResponse);
    clientChannel.writeAndFlush(new DefaultLastHttpContent());
    clientChannel.close();
  } else {
    super.beforeRequest(clientChannel, httpRequest, pipeline);
  }
}
 

@Override
public @Nullable PsiElement getDocumentationElementForLookupItem(PsiManager psiManager, Object object, PsiElement psiElement) {
    if (!(object instanceof String)) {
        return null;
    }

    String fqn = getCallToFormatFunc(psiElement);
    if (StringUtil.isNullOrEmpty(fqn)) {
        return null;
    }

    String tokenText = (String)object;

    if ("%%".equals(tokenText)) {
        tokenText = "%";
    }
    else if (!"%".equals(tokenText)) {
        tokenText = StringUtils.strip((String)object, "%");
    }
    String functionName = StringUtils.strip(fqn, "\\");
    return new FormatTokenDocElement(psiManager, psiElement.getLanguage(), tokenText, functionName);
}
 

public static void checkMessage(Message msg,DefaultMQProducer defaultMQProducer) throws MQClientException {
	if (null == msg) {
		throw new MQClientException(1,"the message is null");
	}
	if (null == msg.getBody()) {
		throw new MQClientException(2,"the message body is null");
	}
	if (0 == msg.getBody().length) {
		throw new MQClientException(3,"the message body length is zero");
	}
	if (msg.getBody().length > defaultMQProducer.getMaxMessageSize()) {
		throw new MQClientException(4,"the message body size over max value, MAX: " + defaultMQProducer.getMaxMessageSize());
	}
	if(StringUtil.isNullOrEmpty(msg.getMessageId())){
		msg.setMessageId(UUID.randomUUID().toString());
	}
}
 

Orderer(String name, String url, Properties properties) throws InvalidArgumentException {

        if (StringUtil.isNullOrEmpty(name)) {
            throw new InvalidArgumentException("Invalid name for orderer");
        }
        Exception e = checkGrpcUrl(url);
        if (e != null) {
            throw new InvalidArgumentException(e);
        }

        this.name = name;
        this.url = url;
        this.properties = properties == null ? new Properties() : (Properties) properties.clone(); //keep our own copy.
        logger.trace("Created " + toString());

    }
 

@Bean
public ConnectionFactory connectionFactory(R2DBCConfigurationProperties properties) {
    
    ConnectionFactoryOptions baseOptions = ConnectionFactoryOptions.parse(properties.getUrl());
    Builder ob = ConnectionFactoryOptions.builder().from(baseOptions);
    if ( !StringUtil.isNullOrEmpty(properties.getUser())) {
        ob = ob.option(USER, properties.getUser());
    }

    if ( !StringUtil.isNullOrEmpty(properties.getPassword())) {
        ob = ob.option(PASSWORD, properties.getPassword());
    }
    
    ConnectionFactory cf = ConnectionFactories.get(ob.build());
    return cf;
}
 

Peer(String name, String grpcURL, Properties properties) throws InvalidArgumentException {
    reconnectCount = new AtomicLong(0L);
    id = config.getNextID();

    Exception e = checkGrpcUrl(grpcURL);
    if (e != null) {
        throw new InvalidArgumentException("Bad peer url.", e);

    }

    if (StringUtil.isNullOrEmpty(name)) {
        throw new InvalidArgumentException("Invalid name for peer");
    }

    this.url = grpcURL;
    this.name = name;
    this.properties = properties == null ? new Properties() : (Properties) properties.clone(); //keep our own copy.

    logger.debug("Created " + toString());
}
 

/**
 * Encoding a string to byte buffer.
 * The first is the string byte array length ,
 * So the String byte array length should not exced 128.
 * The empty string will encoding as lenght 0.
 * @param str
 * @param byteBuf
 */
protected static void stringEncoding(String str, ByteBuffer byteBuf) {
    //All string need to encoding must be less than 128
    if (StringUtil.isNullOrEmpty(str)) {
        byteBuf.put((byte) 0);
    } else {
        byte[] bytes = str.getBytes(Charsets.toCharset("UTF-8"));
        if(bytes.length<128) {
            byteBuf.put((byte) bytes.length);
            byteBuf.put(bytes);
        }else{
            log.warn("String byte array length exced 128, can't do encoding.");
            byteBuf.put((byte)128);
            for(int i=0;i<128;i++){
                byteBuf.put(bytes[i]);
            }
        }
    }
}
 

/**
 * 从发送超时管理器中移除消息，并停止定时器
 *
 * @param msgId
 */
public void remove(String msgId) {
    if (StringUtil.isNullOrEmpty(msgId)) {
        return;
    }

    MsgTimeoutTimer timer = mMsgTimeoutMap.remove(msgId);
    MessageProtobuf.Msg msg = null;
    if (timer != null) {
        msg = timer.getMsg();
        timer.cancel();
        timer = null;
    }

    System.out.println("从发送消息管理器移除消息，message=" + msg);
}
 

/**
 * 发送消息
 * 重载
 *
 * @param msg
 * @param isJoinTimeoutManager 是否加入发送超时管理器
 */
@Override
public void sendMsg(MessageProtobuf.Msg msg, boolean isJoinTimeoutManager) {
    if (msg == null || msg.getHead() == null) {
        System.out.println("发送消息失败，消息为空\tmessage=" + msg);
        return;
    }

    if(!StringUtil.isNullOrEmpty(msg.getHead().getMsgId())) {
        if(isJoinTimeoutManager) {
            msgTimeoutTimerManager.add(msg);
        }
    }

    if (channel == null) {
        System.out.println("发送消息失败，channel为空\tmessage=" + msg);
    }

    try {
        channel.writeAndFlush(msg);
    } catch (Exception ex) {
        System.out.println("发送消息失败，reason:" + ex.getMessage() + "\tmessage=" + msg);
    }
}
 

/**
 * Create a port, and call the interfaces of each micro-service according to the
 * configuration of the port to create various required resources for the port.
 * If any exception occurs in the added process, we need to roll back
 * the resource allocated from each micro-service.
 * @param projectId Project the port belongs to
 * @param portWebJson Port configuration
 * @return PortWebJson
 * @throws Exception Various exceptions that may occur during the create process
 */
@PostMapping({"/project/{project_id}/ports", "v4/{project_id}/ports"})
@ResponseBody
@ResponseStatus(HttpStatus.CREATED)
public PortWebJson createPort(@PathVariable("project_id") String projectId,
                                     @RequestBody PortWebJson portWebJson) throws Exception {
    PortEntity portEntity = portWebJson.getPortEntity();
    if (StringUtil.isNullOrEmpty(portEntity.getVpcId())) {
        throw new NetworkIdRequired();
    }

    checkPort(portEntity);

    return portService.createPort(projectId, portWebJson);
}
 

private void checkConfig() throws MQClientException {
      if (StringUtil.isNullOrEmpty(this.defaultMQProducer.getProducerGroup())) {
          throw new MQClientException("producerGroup is null", null);
      }
      if(StringUtil.isNullOrEmpty(this.defaultMQProducer.getProducerGroup())){
      	throw new MQClientException("register center is null", null);
      }
      synchronized (this.mqProducerFactory) {
      	if(this.mqProducerFactory.getProducerMap().get(this.defaultMQProducer.getProducerGroup()) != null){
      		throw new MQClientException("Group can not be the same！", null);
      	}
      	this.mqProducerFactory.getProducerMap().put(this.defaultMQProducer.getProducerGroup(), this);
}
      
  }
 

public static String[] cutYouBianCode(String code){
	if(code==null || StringUtil.isNullOrEmpty(code)){
		return null;
	}else{
		//获取标准长度为numLength+1,截取的数量为code.length/numLength+1
		int c = code.length()/(numLength+1);
		String[] cutcode = new String[c];
		for(int i =0 ; i <c;i++){
			cutcode[i] = code.substring(0,(i+1)*(numLength+1));
		}
		return cutcode;
	}
	
}
 

@Override
public Object run() throws ZuulException {
	RequestContext requestContext = RequestContext.getCurrentContext();

	String token = requestContext.getRequest().getHeader("Authorization");
	if (StringUtil.isNullOrEmpty(token)) {
		throw new ZuulException("no token found", HttpStatus.SC_UNAUTHORIZED, "no token found");
	}

	token = token.replace("Bearer ", ""); // remove prefix

	HttpHeaders headers = new HttpHeaders();
	headers.add("Authorization", "Basic " + config.getBase64Credentials());

	MultiValueMap<String, String> map = new LinkedMultiValueMap<>();
	map.add("token", token);
	map.add("token_type_hint", "access_token");

	HttpEntity<MultiValueMap<String, String>> request = new HttpEntity<>(map, headers);

	String url = config.getTokenIntrospectEndpoint();
	@SuppressWarnings("unchecked")
	Map<String, Object> resultMap = restTemplate.postForEntity(url, request, Map.class)
			.getBody();

	Boolean active = (Boolean) resultMap.get("active");

	if (active == null || !active) {
		throw new ZuulException("token inactive", HttpStatus.SC_UNAUTHORIZED, "token inactive");
	}

	String username = (String) resultMap.get("username");
	if (StringUtil.isNullOrEmpty(username)) {
		throw new ZuulException("username empty", HttpStatus.SC_UNAUTHORIZED, "username empty");
	}

	requestContext.addZuulRequestHeader("X-S2G-USERNAME", username);

	return null;
}
 

private Map<String, String> buildSslConfig() {
    Map<String, String> sslConfig = Map$.MODULE$.empty();
    if (!StringUtil.isNullOrEmpty(sslMode)) {
        sslConfig = sslConfig.$plus(Tuple2.apply("sslmode", sslMode));
    }
    if (!StringUtil.isNullOrEmpty(sslRootCert)) {
        sslConfig = sslConfig.$plus(Tuple2.apply("sslrootcert", sslRootCert));
    }
    return sslConfig;
}
 

@Override
public void execute(ShardingContext shardingContext) {
	List<MessageEntity> findList = this.messageEntityMapper.queryTransactionNotComplete();
	log.info("查询没有完成的事务消息（查询1分钟之前的）记录数：{}",findList);
	if(findList.isEmpty()){
		return;
	}
	try {
		for(MessageEntity entity : findList){
			
			CheckTransactionStateRequestHeader requestHeader = new CheckTransactionStateRequestHeader();
			
			requestHeader.setMessageId(entity.getMessageId());
			requestHeader.setDestination(entity.getDestination());
			requestHeader.setProducerGroup(entity.getGroup());
			if(!StringUtil.isNullOrEmpty(entity.getProperties())){
				requestHeader.setProperties(entity.getProperties());
			}
			
			RemotingCommand request = RemotingCommand.buildRequestCmd(requestHeader,RequestCode.CHECK_TRANSACTION);
			request.setBody(entity.getBody());
			
			sentToClient(request);
		}
	} catch (Exception e) {
		log.error("回查发送异常：{}",e);
	}
}
 

protected void validateParameter(String contract) {
    JSONObject jsonObject = JSONObject.parseObject(contract);
    if (!jsonObject.containsKey("owner_address")
            || StringUtil.isNullOrEmpty(jsonObject.getString("owner_address"))) {
        throw new InvalidParameterException("owner_address isn't set.");
    }
    if (!jsonObject.containsKey("contract_address")
            || StringUtil.isNullOrEmpty(jsonObject.getString("contract_address"))) {
        throw new InvalidParameterException("contract_address isn't set.");
    }
    if (!jsonObject.containsKey(functionSelector)
            || StringUtil.isNullOrEmpty(jsonObject.getString(functionSelector))) {
        throw new InvalidParameterException("function_selector isn't set.");
    }
}
 

public static String[] cutYouBianCode(String code){
	if(code==null || StringUtil.isNullOrEmpty(code)){
		return null;
	}else{
		//获取标准长度为numLength+1,截取的数量为code.length/numLength+1
		int c = code.length()/(numLength+1);
		String[] cutcode = new String[c];
		for(int i =0 ; i <c;i++){
			cutcode[i] = code.substring(0,(i+1)*(numLength+1));
		}
		return cutcode;
	}
	
}
 

public Optional<String> getHost() {
    return StringUtil.isNullOrEmpty(host) ? Optional.empty() : Optional.of(host);
}
 

/**
 * 确定这个名称是否已注册
 *
 * @return 与否
 */
boolean isRegistered() {
    return !StringUtil.isNullOrEmpty(enrollmentSecret);
}
 

/**
 * Determine if this name has been registered.
 *
 * @return {@code true} if registered; otherwise {@code false}.
 */
public boolean isRegistered() {
    return !StringUtil.isNullOrEmpty(enrollmentSecret);
}