Examples with ApiMediaProcessor com.bluenimble.platform.api.media.ApiMediaProcessor used on opensource projects

Example 1 with ApiMediaProcessor

use of com.bluenimble.platform.api.media.ApiMediaProcessor in project serverless by bluenimble.

the class ApiImpl method lockupMediaProcessor.

@Override
public ApiMediaProcessor lockupMediaProcessor(ApiRequest request, ApiService service) {
    String defaultContentType = Json.getString(getMedia(), Api.Spec.Media.Default, ApiContentTypes.Json);
    String requestedMedia = (String) request.get(ApiHeaders.Accept, Scope.Header);
    if (Lang.isNullOrEmpty(requestedMedia)) {
        requestedMedia = defaultContentType;
    }
    if (!Lang.isNullOrEmpty(requestedMedia)) {
        requestedMedia = requestedMedia.toLowerCase();
    }
    Map<String, ApiMediaProcessor> mediaProcessors = space.getServer().getMediaProcessors();
    // don't apply matching, check if it's in the supported list first
    if (!Json.isNullOrEmpty(service.getMedia())) {
        JsonObject oMedia = Json.getObject(service.getMedia(), requestedMedia);
        boolean anySelected = false;
        if (Json.isNullOrEmpty(oMedia)) {
            oMedia = Json.getObject(service.getMedia(), Lang.STAR);
            anySelected = oMedia != null;
        }
        if (!Json.isNullOrEmpty(oMedia)) {
            String baseMedia = Json.getString(oMedia, ApiService.Spec.Media.Base);
            request.set(ApiRequest.SelectedMedia, anySelected ? Lang.STAR : requestedMedia, ApiRequest.Scope.Parameter);
            return mediaProcessors.get(baseMedia);
        }
    } else if (mediaProcessors.containsKey(requestedMedia)) {
        request.set(ApiRequest.SelectedMedia, requestedMedia, ApiRequest.Scope.Parameter);
        return mediaProcessors.get(requestedMedia);
    }
    String[] supported = Lang.toArray(mediaProcessors.keySet(), null);
    String[] serviceMedias = null;
    if (!Json.isNullOrEmpty(service.getMedia())) {
        serviceMedias = new String[service.getMedia().size()];
        @SuppressWarnings("unchecked") Iterator<String> keys = service.getMedia().keySet().iterator();
        int counter = 0;
        while (keys.hasNext()) {
            String key = keys.next();
            String mediaType = (String) Json.find(service.getMedia(), key, ApiService.Spec.Media.Base);
            if (Lang.isNullOrEmpty(mediaType)) {
                mediaType = key;
            }
            serviceMedias[counter++] = mediaType;
        }
        supported = Lang.add(supported, serviceMedias);
    }
    requestedMedia = MediaTypeUtils.bestMatch(supported, requestedMedia);
    if (requestedMedia == null) {
        requestedMedia = defaultContentType;
    }
    request.set(ApiRequest.SelectedMedia, requestedMedia, ApiRequest.Scope.Parameter);
    return mediaProcessors.get(requestedMedia);
}

Example 2 with ApiMediaProcessor

use of com.bluenimble.platform.api.media.ApiMediaProcessor in project serverless by bluenimble.

the class DefaultApiInterceptor method intercept.

@Override
public void intercept(Api api, ApiRequest request, ApiResponse response) {
    logDebug(api, "<" + request.getId() + "> Process Request \n" + request.toString());
    ServerRequestTrack track = server.getRequestTracker(Json.getString(api.getTracking(), Api.Spec.Tracking.Tracker)).create(api, request);
    request.track(track);
    response.set(ApiHeaders.NodeID, Json.getString(request.getNode(), ApiRequest.Fields.Node.Id));
    response.set(ApiHeaders.NodeType, Json.getString(request.getNode(), ApiRequest.Fields.Node.Type));
    response.set(ApiHeaders.NodeVersion, Json.getString(request.getNode(), ApiRequest.Fields.Node.Version));
    ApiMediaProcessor mediaProcessor = null;
    ApiConsumer consumer = null;
    ApiService service = null;
    try {
        // api life cycle - onRequest
        api.getSpi().onRequest(api, request, response);
        // resolve service
        service = ((ApiImpl) api).lockup(request);
        ApiResponse.Status notFoundStatus = null;
        String notFoundMessage = null;
        if (service == null) {
            notFoundStatus = ApiResponse.NOT_FOUND;
            notFoundMessage = api.message(request.getLang(), Messages.ServiceNotFound, request.getVerb().name() + Lang.SPACE + request.getPath());
        } else if (service.status() != ApiStatus.Running) {
            notFoundStatus = ApiResponse.SERVICE_UNAVAILABLE;
            notFoundMessage = api.message(request.getLang(), Messages.ServiceNotAvailable, service.getName());
        }
        if (notFoundStatus != null) {
            if (response instanceof ContainerApiResponse) {
                ((ContainerApiResponse) response).setException(new ApiServiceExecutionException(notFoundMessage).status(notFoundStatus));
            } else {
                response.error(notFoundStatus, notFoundMessage);
                writeError(mediaProcessor, api, null, null, request, response);
            }
            track.finish((JsonObject) new JsonObject().set(ApiResponse.Error.Code, notFoundStatus.getCode()).set(ApiResponse.Error.Message, notFoundMessage));
            return;
        }
        ((AbstractApiRequest) request).setService(service);
        // Lookup media processor
        mediaProcessor = api.lockupMediaProcessor(request, service);
        track.update(service);
        logInfo(api, "<" + request.getId() + "> Using service " + service.getVerb() + Lang.SPACE + Json.getString(service.toJson(), ApiService.Spec.Endpoint) + Lang.SPACE + Lang.PARENTH_OPEN + service.getName() + Lang.PARENTH_CLOSE);
        // api life cycle - onService
        api.getSpi().onService(api, service, request, response);
        logInfo(api, "<" + request.getId() + "> Interceptor will use media.processor [" + mediaProcessor.getClass().getSimpleName() + "]");
        JsonObject apiSecMethods = Json.getObject(api.getSecurity(), Api.Spec.Security.Schemes);
        if (apiSecMethods == null) {
            apiSecMethods = JsonObject.Blank;
        }
        JsonArray serviceSecMethods = Json.getArray(service.getSecurity(), ApiService.Spec.Security.Schemes);
        ApiConsumerResolver resolver = null;
        try {
            Iterator<String> rKeys = apiSecMethods.keys();
            if (rKeys != null) {
                while (rKeys.hasNext()) {
                    String resolverName = rKeys.next();
                    if (serviceSecMethods != null && !serviceSecMethods.contains(resolverName)) {
                        continue;
                    }
                    ApiConsumerResolver r = server.getConsumerResolver(resolverName);
                    if (r == null) {
                        continue;
                    }
                    consumer = r.resolve(api, service, request);
                    if (consumer != null) {
                        resolver = r;
                        break;
                    }
                }
            }
            if (consumer == null) {
                consumer = new DefaultApiConsumer(ApiConsumer.Type.Unknown);
            }
            api.getSpi().findConsumer(api, service, request, consumer);
            if (resolver != null) {
                resolver.authorize(api, service, request, consumer);
            }
        } catch (ApiAuthenticationException e) {
            if (response instanceof ContainerApiResponse) {
                ((ContainerApiResponse) response).setException(new ApiServiceExecutionException(e.getMessage(), e).status(ApiResponse.UNAUTHORIZED));
            } else {
                response.error(ApiResponse.UNAUTHORIZED, e.getMessage());
                writeError(mediaProcessor, api, consumer, service, request, response);
            }
            track.finish((JsonObject) new JsonObject().set(ApiResponse.Error.Code, ApiResponse.UNAUTHORIZED.getCode()).set(ApiResponse.Error.Message, e.getMessage()));
            return;
        }
        try {
            server.getServiceValidator().validate(api, Json.getObject(service.toJson(), ApiService.Spec.Spec), consumer, request);
        } catch (ApiServiceValidatorException e) {
            if (response instanceof ContainerApiResponse) {
                ((ContainerApiResponse) response).setException(new ApiServiceExecutionException(e.getMessage(), e));
            } else {
                writeValidationError(api, consumer, service, request, response, mediaProcessor, e);
            }
            Object error = null;
            if (e.getFeedback() != null) {
                error = e.getFeedback();
            } else {
                error = e.getMessage();
            }
            track.finish((JsonObject) new JsonObject().set(ApiResponse.Error.Code, ApiResponse.UNPROCESSABLE_ENTITY.getCode()).set(ApiResponse.Error.Message, error));
            return;
        }
        ApiOutput output = null;
        JsonObject mock = Json.getObject(service.toJson(), ApiService.Spec.Mock);
        if (mock != null && Json.getBoolean(mock, ConfigKeys.Enabled, false)) {
            output = new JsonApiOutput(Json.getObject(mock, ApiService.Spec.Output));
            logInfo(api, "<" + request.getId() + "> Service using mock output");
        } else {
            // api life cycle - onExecute
            api.getSpi().onExecute(api, consumer, service, request, response);
            output = service.getSpi().execute(api, consumer, request, response);
            // api life cycle - afterExecute
            api.getSpi().afterExecute(api, consumer, service, request, response);
        }
        if (request instanceof ContainerApiRequest) {
            request.set(ApiRequest.Output, output);
        } else {
            response.set(ApiHeaders.ExecutionTime, (System.currentTimeMillis() - request.getTimestamp().getTime()));
            if (response.isCommitted()) {
                logInfo(api, "<" + request.getId() + "> Response already committed. No media processing required");
                long time = System.currentTimeMillis() - request.getTimestamp().getTime();
                track.finish((JsonObject) new JsonObject().set(ApiResponse.Error.Code, ApiResponse.OK.getCode()).set(ApiResponse.Error.Message, time));
                logInfo(api, " <" + request.getId() + "> ExecTime-Cancel: Service " + Json.getString(service.toJson(), ApiService.Spec.Endpoint) + " - Time " + time + " millis");
                return;
            }
            mediaProcessor.process(api, service, consumer, output, request, response);
        }
        int iStatus = ApiResponse.OK.getCode();
        ApiResponse.Status status = response.getStatus();
        if (status != null) {
            iStatus = status.getCode();
        }
        long time = System.currentTimeMillis() - request.getTimestamp().getTime();
        track.finish((JsonObject) new JsonObject().set(ApiResponse.Error.Code, iStatus).set(ApiResponse.Error.Message, time));
        logInfo(api, "<" + request.getId() + "> ExecTime-Success: Service " + Json.getString(service.toJson(), ApiService.Spec.Endpoint) + " - Time " + time + " millis");
    } catch (Throwable th) {
        if (response instanceof ContainerApiResponse) {
            if (th instanceof ApiServiceExecutionException) {
                ((ContainerApiResponse) response).setException((ApiServiceExecutionException) th);
            } else {
                ((ContainerApiResponse) response).setException(new ApiServiceExecutionException(th.getMessage(), th));
            }
            // String [] msg = Lang.toMessage (th);
            track.finish((JsonObject) Lang.toError(th).set(ApiResponse.Error.Code, ApiResponse.INTERNAL_SERVER_ERROR.getCode()));
        } else {
            ApiResponse.Status status = null;
            if (th instanceof ApiServiceExecutionException) {
                status = ((ApiServiceExecutionException) th).status();
            }
            if (status == null) {
                status = ApiResponse.INTERNAL_SERVER_ERROR;
            }
            boolean isValidationError = false;
            if (th instanceof ApiServiceExecutionException) {
                Throwable rootCause = ((ApiServiceExecutionException) th).getRootCause();
                if (rootCause instanceof ApiServiceValidatorException) {
                    ApiServiceValidatorException vex = (ApiServiceValidatorException) rootCause;
                    isValidationError = true;
                    writeValidationError(api, consumer, service, request, response, mediaProcessor, vex);
                    Object error = null;
                    if (vex.getFeedback() != null) {
                        error = vex.getFeedback();
                    } else {
                        error = vex.getMessage();
                    }
                    track.finish((JsonObject) new JsonObject().set(ApiResponse.Error.Code, ApiResponse.UNPROCESSABLE_ENTITY.getCode()).set(ApiResponse.Error.Message, error));
                }
            }
            if (!isValidationError) {
                JsonObject oError = Lang.toError(th);
                // logError (api, "<" + request.getId () + "> - Execute Service / Media Processing - caused an error\n" + oError.toString (), null);
                response.error(status, new Object[] { oError.get(ApiResponse.Error.Message), oError.get(ApiResponse.Error.Trace) });
                writeError(mediaProcessor, api, consumer, service, request, response);
                track.finish((JsonObject) oError.set(ApiResponse.Error.Code, status.getCode()));
            }
        }
    } finally {
        request.destroy();
    }
}