com.netflix.config.DynamicStringProperty Java Examples

/**
 * 每次序列化额外缓存，配置更新时触发回调函数 返回false即初始化规则失败： 1. 规则解析错误 2. 规则为空
 *
 * @param targetServiceName
 * @return
 */
public static boolean doInit(String targetServiceName) {
  if (!isServerContainRule(targetServiceName)) {
    return false;
  }
  if (!serviceInfoCacheMap.containsKey(targetServiceName)) {
    synchronized (servicePool.intern(targetServiceName)) {
      if (serviceInfoCacheMap.containsKey(targetServiceName)) {
        return true;
      }
      //Yaml not thread-safe
      DynamicStringProperty ruleStr = DynamicPropertyFactory.getInstance().getStringProperty(
          String.format(ROUTE_RULE, targetServiceName), null, () -> {
            refresh(targetServiceName);
            DynamicStringProperty tepRuleStr = DynamicPropertyFactory.getInstance()
                .getStringProperty(String.format(ROUTE_RULE, targetServiceName), null);
            addAllRule(targetServiceName, tepRuleStr.get());
          });
      return addAllRule(targetServiceName, ruleStr.get());
    }
  }
  return true;
}
 

@Override
public HttpRequestMessage apply(HttpRequestMessage request) {
    DynamicStringProperty routeVip = new DynamicStringProperty(ZuulConstants.ZUUL_DEBUG_VIP, null);
    DynamicStringProperty routeHost = new DynamicStringProperty(ZuulConstants.ZUUL_DEBUG_HOST, null);

    SessionContext ctx = request.getContext();

    if (routeVip.get() != null || routeHost.get() != null) {

        ctx.set("routeHost", routeHost.get());
        ctx.set("routeVIP", routeVip.get());

        request.getHeaders().set(ZuulHeaders.X_ZUUL_SURGICAL_FILTER, "true");

        HttpQueryParams queryParams = request.getQueryParams();
        queryParams.set("debugRequest", "true");

        ctx.setDebugRequest(true);
        ctx.set("zuulToZuul", true);

    }
    return request;
}
 

/**
 * cache and register callback return false when: 1. parsing error 2. rule is null
 *
 * @param targetServiceName
 * @return
 */
public static boolean doInit(String targetServiceName) {
  if (!isServerContainRule(targetServiceName)) {
    return false;
  }
  if (!serviceInfoCacheMap.containsKey(targetServiceName)) {
    synchronized (servicePool.intern(targetServiceName)) {
      if (serviceInfoCacheMap.containsKey(targetServiceName)) {
        return true;
      }
      //Yaml not thread-safe
      DynamicStringProperty ruleStr = DynamicPropertyFactory.getInstance().getStringProperty(
          String.format(ROUTE_RULE, targetServiceName), null, () -> {
            refresh(targetServiceName);
            DynamicStringProperty tepRuleStr = DynamicPropertyFactory.getInstance()
                .getStringProperty(String.format(ROUTE_RULE, targetServiceName), null);
            addAllRule(targetServiceName, tepRuleStr.get());
          });
      return addAllRule(targetServiceName, ruleStr.get());
    }
  }
  return true;
}
 

/**
 * if a server don't have rule , avoid registered too many callback , it may cause memory leak
 *
 * @param targetServiceName
 * @return
 */
public static boolean isServerContainRule(String targetServiceName) {
  DynamicStringProperty lookFor = DynamicPropertyFactory.getInstance()
      .getStringProperty(String.format(ROUTE_RULE, targetServiceName), null);
  if (StringUtils.isEmpty(lookFor.get())) {
    return false;
  }
  return true;
}
 

@PostConstruct
public void init() {
    DynamicStringProperty sinkDescription = new DynamicStringProperty(SINK_PROPERTY, initialSink) {
        @Override
        protected void propertyChanged() {
            buildSink(get(), false);
        }
    };

    buildSink(sinkDescription.get(), true);
}
 

@PostConstruct
public void init() {
    DynamicStringProperty routingMapFP = new DynamicStringProperty(ROUTING_MAP_PROPERTY, initialRoutingMap) {
        @Override
        protected void propertyChanged() {
            buildMap(get());
        }
    };

    buildMap(routingMapFP.get());
}
 

@PostConstruct
public void init() {
    DynamicStringProperty inputFP = new DynamicStringProperty(INPUT_CONFIG_PROPERTY, initialInputConfig) {
        @Override
        protected void propertyChanged() {
            buildInput(get(), false);
        }
    };

    buildInput(inputFP.get(), true);
}
 

protected void setProp(String serviceId, String suffix, String value) {
	// how to set the namespace properly?
	String key = getKey(serviceId, suffix);
	DynamicStringProperty property = getProperty(key);
	if (property.get().equals(VALUE_NOT_SET)) {
		ConfigurationManager.getConfigInstance().setProperty(key, value);
	}
}
 

protected void setProp(String serviceId, String suffix, String value) {
	// how to set the namespace properly?
	String key = getKey(serviceId, suffix);
	DynamicStringProperty property = getProperty(key);
	if (property.get().equals(VALUE_NOT_SET)) {
		ConfigurationManager.getConfigInstance().setProperty(key, value);
	}
}
 

private List<ServiceIns> mainFilter(List<ServiceIns> serverlist, Map<String, String> headermap) {
  RouterDistributor<ServiceIns, ServiceIns> testDistributer = new TestDistributer();
  DynamicPropertyFactory dpf = DynamicPropertyFactory.getInstance();
  DynamicStringProperty strp = new DynamicStringProperty("", ruleStr);
  new Expectations(dpf) {
    {
      dpf.getStringProperty(anyString, null, (Runnable) any);
      result = strp;
    }
  };
  RouterRuleCache.refresh();
  return RouterFilter
      .getFilteredListOfServers(serverlist, targetServiceName, headermap,
          testDistributer);
}
 

/**
 * if a server don't have rule , avoid registered too many callback , it may cause memory leak
 *
 * @param targetServiceName
 * @return
 */
public static boolean isServerContainRule(String targetServiceName) {
  DynamicStringProperty lookFor = DynamicPropertyFactory.getInstance()
      .getStringProperty(String.format(ROUTE_RULE, targetServiceName), null);
  if (StringUtils.isEmpty(lookFor.get())) {
    return false;
  }
  return true;
}
 

/**
 * read config and get Header
 */
private boolean loadHeaders() {
  if (!CollectionUtils.isEmpty(allHeader)) {
    return true;
  }
  DynamicStringProperty headerStr = DynamicPropertyFactory.getInstance()
      .getStringProperty(SERVICECOMB_ROUTER_HEADER, null, () -> {
        DynamicStringProperty temHeader = DynamicPropertyFactory.getInstance()
            .getStringProperty(SERVICECOMB_ROUTER_HEADER, null);
        if (!addAllHeaders(temHeader.get())) {
          allHeader = new ArrayList<>();
        }
      });
  return addAllHeaders(headerStr.get());
}
 

private List<ServiceIns> mainFilter(List<ServiceIns> serverlist, Map<String, String> headermap) {
  TestDistributer TestDistributer = new TestDistributer();
  DynamicPropertyFactory dpf = DynamicPropertyFactory.getInstance();
  DynamicStringProperty strp = new DynamicStringProperty("", ruleStr);
  new Expectations(dpf) {
    {
      dpf.getStringProperty(anyString, null, (Runnable) any);
      result = strp;
    }
  };
  RouterRuleCache.refresh();
  return RouterFilter
      .getFilteredListOfServers(serverlist, targetServiceName, headermap,
          TestDistributer);
}
 

private static boolean isHaveHeadersRule() {
  DynamicStringProperty headerStr = DynamicPropertyFactory.getInstance()
      .getStringProperty(SERVICECOMB_ROUTER_HEADER, null);
  if (StringUtils.isEmpty(headerStr)) {
    return false;
  }
  return true;
}
 

private static boolean loadHeaders() {
  if (!CollectionUtils.isEmpty(passHeader)) {
    return true;
  }
  DynamicStringProperty headerStr = DynamicPropertyFactory.getInstance()
      .getStringProperty(SERVICECOMB_ROUTER_HEADER, null, () -> {
        DynamicStringProperty temHeader = DynamicPropertyFactory.getInstance()
            .getStringProperty(SERVICECOMB_ROUTER_HEADER, null);
        if (!addAllHeaders(temHeader.get())) {
          passHeader = new ArrayList<>();
        }
      });
  return addAllHeaders(headerStr.get());
}
 

private void registerEureka() {
	DynamicBooleanProperty eurekaEnabled = DynamicPropertyFactory.getInstance().getBooleanProperty("eureka.enabled",
			true);
	if (!eurekaEnabled.get())
		return;

	EurekaInstanceConfig eurekaInstanceConfig = new PropertiesInstanceConfig() {
	};
       ConfigurationManager.getConfigInstance().setProperty("eureka.statusPageUrl","http://"+ getTurbineInstance());

	DiscoveryManager.getInstance().initComponent(eurekaInstanceConfig, new DefaultEurekaClientConfig());

	final DynamicStringProperty serverStatus = DynamicPropertyFactory.getInstance()
			.getStringProperty("server." + IPUtil.getLocalIP() + ".status", "up");
	DiscoveryManager.getInstance().getDiscoveryClient().registerHealthCheckCallback(new HealthCheckCallback() {
		@Override
		public boolean isHealthy() {
			return serverStatus.get().toLowerCase().equals("up");
		}
	});

	String version = String.valueOf(System.currentTimeMillis());
	String group = ConfigurationManager.getConfigInstance().getString("server.group", "default");
	String dataCenter = ConfigurationManager.getConfigInstance().getString("server.data-center", "default");

	Map<String, String> metadata = new HashMap<String, String>();
	metadata.put("version", version);
	metadata.put("group", group);
	metadata.put("dataCenter", dataCenter);

	String turbineInstance = getTurbineInstance();
	if (turbineInstance != null) {
		metadata.put("turbine.instance", turbineInstance);
	}

	ApplicationInfoManager.getInstance().registerAppMetadata(metadata);
}
 

/**
 * if don't have headers rule , avoid registered too many callback
 */
private boolean isHaveHeadersRule() {
  DynamicStringProperty headerStr = DynamicPropertyFactory.getInstance()
      .getStringProperty(SERVICECOMB_ROUTER_HEADER, null);
  if (StringUtils.isEmpty(headerStr)) {
    return false;
  }
  return true;
}
 

public static String getAddress() {
  DynamicStringProperty address =
      DynamicPropertyFactory.getInstance().getStringProperty("servicecomb.rest.address", null);
  return address.get();
}
 

public static String getAddress() {
  DynamicStringProperty address =
      DynamicPropertyFactory.getInstance().getStringProperty("servicecomb.highway.address", null);
  return address.get();
}
 

@Override
public String getString(String key, String defaultValue, Runnable callback) {
    final DynamicStringProperty property = DynamicPropertyFactory.getInstance().getStringProperty(key, defaultValue, callback);
    return property.get();
}
 

public HttpVersion getHttpVersion() {
  DynamicStringProperty property =
      DynamicPropertyFactory.getInstance()
          .getStringProperty("servicecomb.service.registry.client.httpVersion", "HTTP_1_1");
  return HttpVersion.valueOf(property.get());
}
 

protected DynamicStringProperty getProperty(String key) {
	return DynamicPropertyFactory.getInstance().getStringProperty(key, VALUE_NOT_SET);
}
 

@Override
public String getStringProperty(String propertyName, Consumer<String> consumer, String defaultValue) {
  DynamicStringProperty prop = propertyFactoryInstance().getStringProperty(propertyName, defaultValue);
  prop.addCallback(() -> consumer.accept(prop.get()));
  return prop.get();
}
 

protected DynamicStringProperty getProperty(String key) {
	return DynamicPropertyFactory.getInstance().getStringProperty(key, VALUE_NOT_SET);
}
 

public void setDualWriteClusterName(DynamicStringProperty stringProperty) {
    this.dualWriteClusterName = stringProperty;
}
 

public static String getServletUrlPattern() {
  DynamicStringProperty address =
      DynamicPropertyFactory.getInstance().getStringProperty(KEY_SERVLET_URL_PATTERN, null);
  return address.get();
}
 

public static String getLocalServerAddress() {
  DynamicStringProperty address =
      DynamicPropertyFactory.getInstance().getStringProperty(SERVICECOMB_REST_ADDRESS, null);
  return address.get();
}
 

public DynamicStringProperty getManualCheckProperty() {
  return manualCheckProperty;
}
 

/**
 * @param key
 *         配置项的key
 * @param defaultValue
 *         如果取回的配置项值为空, 应该返回的默认值
 *
 * @return 配置项的值
 */
@Override
public String getString(String key, String defaultValue) {
    final DynamicStringProperty property = DynamicPropertyFactory.getInstance().getStringProperty(key, defaultValue);
    return property.get();
}