Examples with TokenResult com.alibaba.csp.sentinel.cluster.TokenResult used on opensource projects

Example 11 with TokenResult

use of com.alibaba.csp.sentinel.cluster.TokenResult in project Sentinel by alibaba.

the class SentinelEnvoyRlsServiceImplTest method testShouldRateLimitPass.

@Test
public void testShouldRateLimitPass() {
    SentinelEnvoyRlsServiceImpl rlsService = mock(SentinelEnvoyRlsServiceImpl.class);
    StreamObserver<RateLimitResponse> streamObserver = mock(StreamObserver.class);
    String domain = "testShouldRateLimitPass";
    int acquireCount = 1;
    RateLimitDescriptor descriptor1 = RateLimitDescriptor.newBuilder().addEntries(RateLimitDescriptor.Entry.newBuilder().setKey("rk1").setValue("rv1").build()).build();
    RateLimitDescriptor descriptor2 = RateLimitDescriptor.newBuilder().addEntries(RateLimitDescriptor.Entry.newBuilder().setKey("rk2").setValue("rv2").build()).addEntries(RateLimitDescriptor.Entry.newBuilder().setKey("rk3").setValue("rv3").build()).build();
    ArgumentCaptor<RateLimitResponse> responseCapture = ArgumentCaptor.forClass(RateLimitResponse.class);
    doNothing().when(streamObserver).onNext(responseCapture.capture());
    doCallRealMethod().when(rlsService).shouldRateLimit(any(), any());
    when(rlsService.checkToken(eq(domain), same(descriptor1), eq(acquireCount))).thenReturn(Tuple2.of(new FlowRule(), new TokenResult(TokenResultStatus.OK)));
    when(rlsService.checkToken(eq(domain), same(descriptor2), eq(acquireCount))).thenReturn(Tuple2.of(new FlowRule(), new TokenResult(TokenResultStatus.OK)));
    RateLimitRequest rateLimitRequest = RateLimitRequest.newBuilder().addDescriptors(descriptor1).addDescriptors(descriptor2).setDomain(domain).setHitsAddend(acquireCount).build();
    rlsService.shouldRateLimit(rateLimitRequest, streamObserver);
    RateLimitResponse response = responseCapture.getValue();
    assertEquals(RateLimitResponse.Code.OK, response.getOverallCode());
    response.getStatusesList().forEach(e -> assertEquals(RateLimitResponse.Code.OK, e.getCode()));
}

Example 12 with TokenResult

use of com.alibaba.csp.sentinel.cluster.TokenResult in project Sentinel by alibaba.

the class SentinelEnvoyRlsServiceImplTest method testShouldRatePartialBlock.

@Test
public void testShouldRatePartialBlock() {
    SentinelEnvoyRlsServiceImpl rlsService = mock(SentinelEnvoyRlsServiceImpl.class);
    StreamObserver<RateLimitResponse> streamObserver = mock(StreamObserver.class);
    String domain = "testShouldRatePartialBlock";
    int acquireCount = 1;
    RateLimitDescriptor descriptor1 = RateLimitDescriptor.newBuilder().addEntries(RateLimitDescriptor.Entry.newBuilder().setKey("rk1").setValue("rv1").build()).build();
    RateLimitDescriptor descriptor2 = RateLimitDescriptor.newBuilder().addEntries(RateLimitDescriptor.Entry.newBuilder().setKey("rk2").setValue("rv2").build()).addEntries(RateLimitDescriptor.Entry.newBuilder().setKey("rk3").setValue("rv3").build()).build();
    ArgumentCaptor<RateLimitResponse> responseCapture = ArgumentCaptor.forClass(RateLimitResponse.class);
    doNothing().when(streamObserver).onNext(responseCapture.capture());
    doCallRealMethod().when(rlsService).shouldRateLimit(any(), any());
    when(rlsService.checkToken(eq(domain), same(descriptor1), eq(acquireCount))).thenReturn(Tuple2.of(new FlowRule(), new TokenResult(TokenResultStatus.BLOCKED)));
    when(rlsService.checkToken(eq(domain), same(descriptor2), eq(acquireCount))).thenReturn(Tuple2.of(new FlowRule(), new TokenResult(TokenResultStatus.OK)));
    RateLimitRequest rateLimitRequest = RateLimitRequest.newBuilder().addDescriptors(descriptor1).addDescriptors(descriptor2).setDomain(domain).setHitsAddend(acquireCount).build();
    rlsService.shouldRateLimit(rateLimitRequest, streamObserver);
    RateLimitResponse response = responseCapture.getValue();
    assertEquals(RateLimitResponse.Code.OVER_LIMIT, response.getOverallCode());
    assertEquals(2, response.getStatusesCount());
    assertTrue(response.getStatusesList().stream().anyMatch(e -> e.getCode().equals(RateLimitResponse.Code.OVER_LIMIT)));
    assertFalse(response.getStatusesList().stream().allMatch(e -> e.getCode().equals(RateLimitResponse.Code.OVER_LIMIT)));
}

Example 13 with TokenResult

use of com.alibaba.csp.sentinel.cluster.TokenResult in project Sentinel by alibaba.

the class SentinelEnvoyRlsServiceImpl method checkToken.

protected Tuple2<FlowRule, TokenResult> checkToken(String domain, RateLimitDescriptor descriptor, int acquireCount) {
    long ruleId = EnvoySentinelRuleConverter.generateFlowId(generateKey(domain, descriptor));
    FlowRule rule = ClusterFlowRuleManager.getFlowRuleById(ruleId);
    if (rule == null) {
        // Pass if the target rule is absent.
        return Tuple2.of(null, new TokenResult(TokenResultStatus.NO_RULE_EXISTS));
    }
    // If the rule is present, it should be valid.
    return Tuple2.of(rule, SimpleClusterFlowChecker.acquireClusterToken(rule, acquireCount));
}

Example 14 with TokenResult

use of com.alibaba.csp.sentinel.cluster.TokenResult in project Sentinel by alibaba.

the class SentinelEnvoyRlsServiceImpl method shouldRateLimit.

@Override
public void shouldRateLimit(RateLimitRequest request, StreamObserver<RateLimitResponse> responseObserver) {
    int acquireCount = request.getHitsAddend();
    if (acquireCount < 0) {
        responseObserver.onError(new IllegalArgumentException("acquireCount should be positive, but actual: " + acquireCount));
        return;
    }
    if (acquireCount == 0) {
        // Not present, use the default "1" by default.
        acquireCount = 1;
    }
    String domain = request.getDomain();
    boolean blocked = false;
    List<DescriptorStatus> statusList = new ArrayList<>(request.getDescriptorsCount());
    for (RateLimitDescriptor descriptor : request.getDescriptorsList()) {
        Tuple2<FlowRule, TokenResult> t = checkToken(domain, descriptor, acquireCount);
        TokenResult r = t.r2;
        printAccessLogIfNecessary(domain, descriptor, r);
        if (r.getStatus() == TokenResultStatus.NO_RULE_EXISTS) {
            // If the rule of the descriptor is absent, the request will pass directly.
            r.setStatus(TokenResultStatus.OK);
        }
        if (!blocked && r.getStatus() != TokenResultStatus.OK) {
            blocked = true;
        }
        Code statusCode = r.getStatus() == TokenResultStatus.OK ? Code.OK : Code.OVER_LIMIT;
        DescriptorStatus.Builder descriptorStatusBuilder = DescriptorStatus.newBuilder().setCode(statusCode);
        if (t.r1 != null) {
            descriptorStatusBuilder.setCurrentLimit(RateLimit.newBuilder().setUnit(Unit.SECOND).setRequestsPerUnit((int) t.r1.getCount()).build()).setLimitRemaining(r.getRemaining());
        }
        statusList.add(descriptorStatusBuilder.build());
    }
    Code overallStatus = blocked ? Code.OVER_LIMIT : Code.OK;
    RateLimitResponse response = RateLimitResponse.newBuilder().setOverallCode(overallStatus).addAllStatuses(statusList).build();
    responseObserver.onNext(response);
    responseObserver.onCompleted();
}

Example 15 with TokenResult

use of com.alibaba.csp.sentinel.cluster.TokenResult in project Sentinel by alibaba.

the class SimpleClusterFlowChecker method acquireClusterToken.

public static TokenResult acquireClusterToken(/*@Valid*/
FlowRule rule, int acquireCount) {
    Long id = rule.getClusterConfig().getFlowId();
    ClusterMetric metric = ClusterMetricStatistics.getMetric(id);
    if (metric == null) {
        return new TokenResult(TokenResultStatus.FAIL);
    }
    double latestQps = metric.getAvg(ClusterFlowEvent.PASS);
    double globalThreshold = rule.getCount() * ClusterServerConfigManager.getExceedCount();
    double nextRemaining = globalThreshold - latestQps - acquireCount;
    if (nextRemaining >= 0) {
        metric.add(ClusterFlowEvent.PASS, acquireCount);
        metric.add(ClusterFlowEvent.PASS_REQUEST, 1);
        ClusterServerStatLogUtil.log("flow|pass|" + id, acquireCount);
        ClusterServerStatLogUtil.log("flow|pass_request|" + id, 1);
        // Remaining count is cut down to a smaller integer.
        return new TokenResult(TokenResultStatus.OK).setRemaining((int) nextRemaining).setWaitInMs(0);
    } else {
        // Blocked.
        metric.add(ClusterFlowEvent.BLOCK, acquireCount);
        metric.add(ClusterFlowEvent.BLOCK_REQUEST, 1);
        ClusterServerStatLogUtil.log("flow|block|" + id, acquireCount);
        ClusterServerStatLogUtil.log("flow|block_request|" + id, 1);
        return blockedResult();
    }
}