com.alibaba.csp.sentinel.slots.block.flow.param.ParamFlowItem Java Examples

private static void initParamFlowRules() {
    // QPS mode, threshold is 5 for every frequent "hot spot" parameter in index 0 (the first arg).
    ParamFlowRule rule = new ParamFlowRule(RESOURCE_KEY)
        .setParamIdx(0)
        .setGrade(RuleConstant.FLOW_GRADE_QPS)
        //.setDurationInSec(3)
        //.setControlBehavior(RuleConstant.CONTROL_BEHAVIOR_RATE_LIMITER)
        //.setMaxQueueingTimeMs(600)
        .setCount(5);

    // We can set threshold count for specific parameter value individually.
    // Here we add an exception item. That means: QPS threshold of entries with parameter `PARAM_B` (type: int)
    // in index 0 will be 10, rather than the global threshold (5).
    ParamFlowItem item = new ParamFlowItem().setObject(String.valueOf(PARAM_B))
        .setClassType(int.class.getName())
        .setCount(10);
    rule.setParamFlowItemList(Collections.singletonList(item));
    ParamFlowRuleManager.loadRules(Collections.singletonList(rule));
}
 

private static void initParamFlowRules() {
    // QPS mode, threshold is 5 for every frequent "hot spot" parameter in index 0 (the first arg).
    ParamFlowRule rule = new ParamFlowRule(RESOURCE_KEY)
        .setParamIdx(0)
        .setGrade(RuleConstant.FLOW_GRADE_QPS)
        //.setDurationInSec(3)
        //.setControlBehavior(RuleConstant.CONTROL_BEHAVIOR_RATE_LIMITER)
        //.setMaxQueueingTimeMs(600)
        .setCount(5);

    // We can set threshold count for specific parameter value individually.
    // Here we add an exception item. That means: QPS threshold of entries with parameter `PARAM_B` (type: int)
    // in index 0 will be 10, rather than the global threshold (5).
    ParamFlowItem item = new ParamFlowItem().setObject(String.valueOf(PARAM_B))
        .setClassType(int.class.getName())
        .setCount(10);
    rule.setParamFlowItemList(Collections.singletonList(item));
    ParamFlowRuleManager.loadRules(Collections.singletonList(rule));
}
 

/**
 * 初始化热点限流的规则
 */
private void initHotParamFlowRules() {
    // 设置热点参数的规则，qps 模式，阈值为5
    ParamFlowRule rule = new ParamFlowRule(resourceName)
            .setParamIdx(0)
            .setGrade(RuleConstant.FLOW_GRADE_QPS)
            .setCount(5);
    // 对userId=111的参数设置例外项，可以为该用户id的值单独设置阈值
    ParamFlowItem item = new ParamFlowItem().setObject(String.valueOf(111))
            .setClassType(int.class.getName())
            .setCount(10);
    rule.setParamFlowItemList(Collections.singletonList(item));
    ParamFlowRuleManager.loadRules(Collections.singletonList(rule));
}
 

@JsonIgnore
public List<ParamFlowItem> getParamFlowItemList() {
    return rule.getParamFlowItemList();
}
 

static ParamFlowItem generateNonMatchPassParamItem() {
    return new ParamFlowItem().setClassType(String.class.getName())
        .setCount(1000_0000)
        .setObject(SentinelGatewayConstants.GATEWAY_NOT_MATCH_PARAM);
}
 

static ParamFlowItem generateNonMatchBlockParamItem() {
    return new ParamFlowItem().setClassType(String.class.getName())
        .setCount(0)
        .setObject(SentinelGatewayConstants.GATEWAY_NOT_MATCH_PARAM);
}
 

@JsonIgnore
@JSONField(serialize = false)
public List<ParamFlowItem> getParamFlowItemList() {
    return rule.getParamFlowItemList();
}
 

static ParamFlowItem generateNonMatchPassParamItem() {
    return new ParamFlowItem().setClassType(String.class.getName())
        .setCount(1000_0000)
        .setObject(SentinelGatewayConstants.GATEWAY_NOT_MATCH_PARAM);
}
 

static ParamFlowItem generateNonMatchBlockParamItem() {
    return new ParamFlowItem().setClassType(String.class.getName())
        .setCount(0)
        .setObject(SentinelGatewayConstants.GATEWAY_NOT_MATCH_PARAM);
}