Examples with EntryHolder com.alibaba.csp.sentinel.adapter.gateway.zuul2.filters.EntryHolder used on opensource projects

Example 1 with EntryHolder

use of com.alibaba.csp.sentinel.adapter.gateway.zuul2.filters.EntryHolder in project Sentinel by alibaba.

the class SentinelZuulInboundFilter method doSentinelEntry.

private void doSentinelEntry(String resourceName, final int resType, HttpRequestMessage input, Deque<EntryHolder> holders) throws BlockException {
    Object[] params = paramParser.parseParameterFor(resourceName, input, r -> r.getResourceMode() == resType);
    AsyncEntry entry = SphU.asyncEntry(resourceName, ResourceTypeConstants.COMMON_API_GATEWAY, EntryType.IN, params);
    holders.push(new EntryHolder(entry, params));
}

Example 2 with EntryHolder

use of com.alibaba.csp.sentinel.adapter.gateway.zuul2.filters.EntryHolder in project Sentinel by alibaba.

the class SentinelZuulInboundFilter method apply.

private Observable<HttpRequestMessage> apply(HttpRequestMessage request) {
    SessionContext context = request.getContext();
    Deque<EntryHolder> holders = new ArrayDeque<>();
    String routeId = routeExtractor.apply(request);
    String fallBackRoute = routeId;
    try {
        if (StringUtil.isNotBlank(routeId)) {
            ContextUtil.enter(GATEWAY_CONTEXT_ROUTE_PREFIX + routeId);
            doSentinelEntry(routeId, RESOURCE_MODE_ROUTE_ID, request, holders);
        }
        Set<String> matchingApis = pickMatchingApiDefinitions(request);
        if (!matchingApis.isEmpty() && ContextUtil.getContext() == null) {
            ContextUtil.enter(SentinelZuul2Constants.ZUUL_DEFAULT_CONTEXT);
        }
        for (String apiName : matchingApis) {
            fallBackRoute = apiName;
            doSentinelEntry(apiName, RESOURCE_MODE_CUSTOM_API_NAME, request, holders);
        }
        return Observable.just(request);
    } catch (BlockException t) {
        context.put(SentinelZuul2Constants.ZUUL_CTX_SENTINEL_BLOCKED_FLAG, Boolean.TRUE);
        context.put(SentinelZuul2Constants.ZUUL_CTX_SENTINEL_FALLBACK_ROUTE, fallBackRoute);
        if (fastError) {
            context.setShouldSendErrorResponse(true);
            context.setErrorEndpoint(blockedEndpointName);
        } else {
            context.setEndpoint(blockedEndpointName);
        }
        return Observable.error(t);
    } finally {
        if (!holders.isEmpty()) {
            context.put(SentinelZuul2Constants.ZUUL_CTX_SENTINEL_ENTRIES_KEY, holders);
        }
        // clear context to avoid another request use incorrect context
        ContextUtil.exit();
    }
}

Example 3 with EntryHolder

use of com.alibaba.csp.sentinel.adapter.gateway.zuul2.filters.EntryHolder in project Sentinel by alibaba.

the class SentinelZuulOutboundFilter method apply.

public HttpResponseMessage apply(HttpResponseMessage response) {
    SessionContext context = response.getContext();
    if (context.get(SentinelZuul2Constants.ZUUL_CTX_SENTINEL_ENTRIES_KEY) == null) {
        return response;
    }
    boolean previousBlocked = context.getFilterErrors().stream().anyMatch(e -> BlockException.isBlockException(e.getException()));
    Deque<EntryHolder> holders = (Deque<EntryHolder>) context.get(SentinelZuul2Constants.ZUUL_CTX_SENTINEL_ENTRIES_KEY);
    while (!holders.isEmpty()) {
        EntryHolder holder = holders.pop();
        if (!previousBlocked) {
            Tracer.traceEntry(context.getError(), holder.getEntry());
            holder.getEntry().exit(1, holder.getParams());
        }
    }
    return response;
}