Example usage for com.google.gson JsonObject isJsonNull

List of usage examples for com.google.gson JsonObject isJsonNull

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Introduction

In this page you can find the example usage for com.google.gson JsonObject isJsonNull.

Prototype

public boolean isJsonNull()

Source Link

Document

provides check for verifying if this element represents a null value or not.

Usage

From source file:net.minecraftforge.common.crafting.CraftingHelper.java

License:Open Source License

public static IRecipe getRecipe(JsonObject json, JsonContext context) {
    if (json == null || json.isJsonNull())
        throw new JsonSyntaxException("Json cannot be null");
    if (context == null)
        throw new IllegalArgumentException("getRecipe Context cannot be null");

    String type = context.appendModId(JsonUtils.getString(json, "type"));
    if (type.isEmpty())
        throw new JsonSyntaxException("Recipe type can not be an empty string");

    IRecipeFactory factory = recipes.get(new ResourceLocation(type));
    if (factory == null)
        throw new JsonSyntaxException("Unknown recipe type: " + type);

    return factory.parse(context, json);
}

From source file:org.fenixedu.ulisboa.specifications.ui.teacher.PagesAdminBean.java

License:Open Source License

protected static Optional<String> asString(JsonObject jsonObject, String field) {
    if (jsonObject.has(field)) {
        if (jsonObject.get(field) != null && !jsonObject.isJsonNull() && jsonObject.get(field).isJsonPrimitive()
                && !"null".equals(jsonObject.get(field).getAsString())) {
            return Optional.ofNullable(jsonObject.get(field).getAsString());
        }//from  w w  w.  j a va2  s.  c  o m
    }
    return Optional.empty();
}

From source file:org.mitre.provenance.plusobject.json.ProvenanceCollectionDeserializer.java

License:Apache License

public ProvenanceCollection deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
        throws JsonParseException {
    if (!json.isJsonObject()) {
        log.info("Cannot deserialize this: " + json);
        throw new JsonParseException("Can only deserialize objects");
    }//w w w  .  j av a 2  s.c  o m
    JsonObject obj = json.getAsJsonObject();

    ProvenanceCollection col = new ProvenanceCollection();

    JsonElement nodes = obj.get("nodes");
    JsonElement links = obj.get("links");
    JsonElement actors = obj.get("actors");

    if (!nodes.isJsonArray())
        throw new JsonParseException("Missing top-level nodes array");
    if (!links.isJsonArray())
        throw new JsonParseException("Missing top-level links array");
    if (!actors.isJsonArray())
        throw new JsonParseException("Missing top-level actors array");

    JsonArray n = (JsonArray) nodes;
    JsonArray l = (JsonArray) links;
    JsonArray a = (JsonArray) actors;

    for (JsonElement actor : a) {
        if (!actor.isJsonObject())
            throw new JsonParseException("Actors list contains non-object " + actor.toString());

        PLUSActor convertedActor = convertActor((JsonObject) actor);
        // log.info("Adding converted actor " +convertedActor);
        col.addActor(convertedActor);
    }

    for (JsonElement e : n) {
        if (!e.isJsonObject())
            throw new JsonParseException("Node list contains non-object " + e.toString());
        JsonObject o = (JsonObject) e;

        // NPID nodes are dummy stand-ins, and not provenance objects to be added.
        if ("npid".equals(o.get("type").getAsString()))
            continue;

        PLUSObject pobj = convertObject(o, col);
        col.addNode(pobj);
    }

    for (JsonElement linkItem : l) {
        if (!linkItem.isJsonObject())
            throw new JsonParseException("Link list contains non-object " + linkItem.toString());
        JsonObject link = (JsonObject) linkItem;

        if (link == null || link.isJsonNull()) {
            log.warning("Null link; skipping");
            continue;
        } else if (link.get("label") == null) {
            log.warning("Link " + link + " MISSING type");
            continue;
        }

        if (link.get("label") == null || link.get("label").isJsonNull())
            throw new JsonParseException("Missing attribute label on link/edge " + link);
        if (link.get("type") == null || link.get("type").isJsonNull())
            throw new JsonParseException("Missing attribute type on link/edge " + link);

        String label = link.get("label").getAsString();
        String type = link.get("type").getAsString();

        if (PLUSEdge.isProvenanceEdgeType(type) && !"npe".equals(label)) {
            PLUSEdge e = convertEdge(link, col);
            if (e != null)
                col.addEdge(e);
        } else {
            NonProvenanceEdge npe = convertNPE(link);
            if (npe != null)
                col.addNonProvenanceEdge(npe);
        }
    } // End for

    return col;
}

From source file:org.opendaylight.vtn.javaapi.resources.AbstractResource.java

License:Open Source License

/**
 * Check for 400, 404, 409 and 503 errors returns from platform layer
 * components//  ww  w .  j a  va 2s  . c o  m
 * 
 * @param info
 */
protected void checkForSpecificErrors(JsonObject info) {
    if (info != null && !info.isJsonNull() && info.has(VtnServiceJsonConsts.ERROR)) {
        int errorCode = info.get(VtnServiceJsonConsts.ERROR).getAsJsonObject().get(VtnServiceJsonConsts.CODE)
                .getAsInt();
        if (errorCode == UncResultCode.UNC_INVALID_FORMAT.getValue()
                || errorCode == UncResultCode.UNC_NOT_FOUND.getValue()
                || errorCode == UncResultCode.UNC_CONFLICT_FOUND.getValue()
                || errorCode == UncResultCode.UNC_TOO_MANY_ENTITIES_FOUND.getValue()
                || errorCode == UncResultCode.UNC_SERVICE_UNAVILABLE.getValue())
            createErrorInfo(errorCode);
    }
}

From source file:org.openhab.binding.csas.internal.CSASBinding.java

License:Open Source License

private String safeGetString(JsonObject jobject, String value) {
    if (jobject == null || jobject.isJsonNull() || !jobject.has(value))
        return "null";
    return (jobject.get(value).isJsonNull() ? "N/A" : jobject.get(value).getAsString());
}

From source file:org.openhab.binding.km200.handler.KM200GatewayHandler.java

License:Open Source License

/**
 * Checks bridges configuration//from w  ww  .ja va 2 s.c  o m
 */
private boolean checkConfiguration() {
    /* Get HTTP Data from device */
    JsonObject nodeRoot = remoteDevice.getServiceNode("/gateway/DateTime");
    if (nodeRoot == null || nodeRoot.isJsonNull()) {
        logger.debug("Communication is not possible!");
        updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR,
                "No communication possible with gateway");
        return false;
    }
    logger.debug("Test of the communication to the gateway was successful..");

    /* Testing the received data, is decryption working? */
    try {
        nodeRoot.get("type").getAsString();
        nodeRoot.get("id").getAsString();
    } catch (JsonParseException e) {
        logger.debug("The data is not readable, check the key and password configuration! {}", e.getMessage());
        updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, "Wrong gateway configuration");
        return false;
    }
    return true;
}

From source file:org.openhab.binding.km200.internal.handler.KM200DataHandler.java

License:Open Source License

/**
 * This function checks the state of a service on the device
 *//*from w ww  .j ava2s  .co  m*/
public State getProvidersState(String service, String itemType, Map<String, String> itemPara) {
    synchronized (remoteDevice) {
        String type = null;
        KM200ServiceObject object = null;
        JsonObject jsonNode;

        logger.debug("Check state of: {}  item: {}", service, itemType);
        if (remoteDevice.getBlacklistMap().contains(service)) {
            logger.debug("Service on blacklist: {}", service);
            return null;
        }
        if (remoteDevice.containsService(service)) {
            object = remoteDevice.getServiceObject(service);
            if (object.getReadable() == 0) {
                logger.warn("Service is listed as protected (reading is not possible): {}", service);
                return null;
            }
            type = object.getServiceType();
        } else {
            logger.warn("Service is not in the determined device service list: {}", service);
            return null;
        }
        /* For using of virtual services only one receive on the parent service is needed */
        if (!object.getUpdated() || (object.getVirtual() == 1
                && !remoteDevice.getServiceObject(object.getParent()).getUpdated())) {
            if (object.getVirtual() == 1) {
                logger.debug("Receive data for an virtual object");
                /* If it's a virtual service then receive the data from parent service */
                jsonNode = remoteDevice.getServiceNode(object.getParent());
            } else {
                logger.debug("Receive data");
                jsonNode = remoteDevice.getServiceNode(service);
            }

            if (jsonNode == null || jsonNode.isJsonNull()) {
                logger.error("Communication is not possible!");
                return null;
            }
            if (object.getVirtual() == 1) {
                remoteDevice.getServiceObject(object.getParent()).setJSONData(jsonNode);
                remoteDevice.getServiceObject(object.getParent()).setUpdated(true);
            } else {
                object.setJSONData(jsonNode);
            }
            object.setUpdated(true);
        } else {
            /* If already updated then use the saved data */
            if (object.getVirtual() == 1) {
                logger.debug("Get data for an virtual object");
                jsonNode = remoteDevice.getServiceObject(object.getParent()).getJSONData();
            } else {
                logger.debug("Get data");
                jsonNode = object.getJSONData();
            }
        }
        /* Data is received, now parsing it */
        return parseJSONData(jsonNode, type, service, itemType, itemPara);
    }
}

From source file:org.slc.sli.util.CheckListHelper.java

License:Apache License

/**
 * whether sandbox tenant has data in their mongo Tracking
 * ingestion job doesn't seem like a good solution Possible solution: check
 * mongo for data for that tenant//from  www.j ava 2  s .c  om
 * 
 * @param mySession
 * @param token
 * @return
 */
private boolean hasUploadedData(JsonObject mySession, String token) {
    boolean result = false;
    JsonElement myTenantIdJson = mySession.get(TENANT_ID);
    if (myTenantIdJson != null && !myTenantIdJson.isJsonNull()) {
        String myTenantId = myTenantIdJson.getAsString();

        // call API
        // http(s)://xxx.xxx.xxx.xxx/api/rest/v1/tenant_metrics/<tenantId>
        String path = Constants.API_PREFIX + "/" + Constants.API_V1 + "/" + Constants.TENANT_METRIC + "/"
                + myTenantId;
        String jsonText = restClient.makeJsonRequestWHeaders(path, token, true);
        JsonObject jsonObject = (new JsonParser()).parse(jsonText).getAsJsonObject();

        if (jsonObject != null && !jsonObject.isJsonNull()) {
            JsonElement tenantMetricElement = jsonObject.get(myTenantId);

            // find element with the same tenant id if there is multiple
            // records
            if (tenantMetricElement != null && !tenantMetricElement.isJsonNull()) {

                JsonObject tenantMetricObject = tenantMetricElement.getAsJsonObject();
                if (tenantMetricObject != null && !tenantMetricObject.isJsonNull()) {

                    // get educationOrganization element
                    JsonElement educationOrganizationElement = tenantMetricObject.get(EDUCATION_ORGANIZATION);
                    if (educationOrganizationElement != null && !educationOrganizationElement.isJsonNull()) {
                        JsonObject educatinoOrganizationObject = educationOrganizationElement.getAsJsonObject();
                        if (educatinoOrganizationObject != null && !educatinoOrganizationObject.isJsonNull()) {

                            // get entityCount
                            JsonElement entityCountElement = educatinoOrganizationObject.get(ENTITY_COUNT);
                            if (entityCountElement != null && !entityCountElement.isJsonNull()) {
                                int entityCount = entityCountElement.getAsInt();
                                // if there is more than 0, then
                                // consider as data is ready
                                if (entityCount > 0) {
                                    result = true;
                                }
                            }
                        }
                    }
                }
            }
        }
    }
    return result;
}

From source file:org.slc.sli.util.CheckListHelper.java

License:Apache License

/**
 * check if ProvisionLandingZone has done Check for landingZone exists and
 * that landingZone.path is defined note: the call retrieves the entire
 * tenants collections, so we need to filter to the developer's tenant. The
 * tenant name is the developer's login email.
 * /* ww  w  .  ja v  a 2s .c o m*/
 * @param token
 * @return
 */
private boolean hasProvisionedLandingZone(JsonObject mySession, String token) {
    boolean uploadedData = false;
    JsonElement myTenantIdJson = mySession.get(TENANT_ID);
    if (myTenantIdJson != null && !myTenantIdJson.isJsonNull()) {
        String myTenantId = myTenantIdJson.getAsString();
        String path = Constants.API_PREFIX + "/" + Constants.TENANTS;
        JsonArray tenantJsonArray = getJsonArray(path, token);
        for (JsonElement tenantElement : tenantJsonArray) {
            JsonObject tenantObject = tenantElement.getAsJsonObject();
            if (tenantObject != null && !tenantObject.isJsonNull()) {
                JsonElement tenantId = tenantObject.get(TENANT_ID);
                if (tenantId != null && !tenantId.isJsonNull()) {
                    if (myTenantId.equals(tenantId.getAsString())) {
                        // matched with my tenant

                        // find landingZone.path is defined
                        JsonElement landingZoneJsonObject = tenantObject.get(LANDING_ZONE);
                        if (landingZoneJsonObject != null && !landingZoneJsonObject.isJsonNull()) {
                            JsonArray landingZoneArray = landingZoneJsonObject.getAsJsonArray();
                            if (landingZoneArray != null && !landingZoneJsonObject.isJsonNull()) {
                                for (JsonElement landingZone : landingZoneArray) {
                                    JsonObject landingZoneObject = landingZone.getAsJsonObject();
                                    JsonElement landingZonePath = landingZoneObject.get(PATH);
                                    if (landingZonePath != null && !landingZonePath.isJsonNull()) {
                                        uploadedData = true;
                                        break;
                                    }
                                }
                            }
                        }
                        break;
                    }
                }
            }
        }
    }
    return uploadedData;
}

From source file:org.slc.sli.util.CheckListHelper.java

License:Apache License

/**
 * To find users have been added or not/*from w ww . j a v  a 2s. c  om*/
 * API Call http(s)://xxx.xxx.xxx.xxx/api/rest/users
 * get external_id from session.
 * then, find himself/herself from rest users call
 * @param mySession
 * @param token
 * @return
 */
private boolean hasAddedUsers(JsonObject mySession, String token) {
    boolean result = false;
    String path = Constants.API_PREFIX + "/" + Constants.USERS;
    JsonArray jsonArray = getJsonArray(path, token);
    // check if there is an entry not equal to himself in uid field
    if (jsonArray.size() > 1) {
        // get own uid (external_id)
        JsonElement myTenantId = mySession.get(EXTERNAL_ID);
        if (myTenantId != null && myTenantId.isJsonPrimitive()) {
            for (JsonElement jsonElement : jsonArray) {
                JsonObject jsonObject = jsonElement.getAsJsonObject();
                if (jsonObject != null && !jsonObject.isJsonNull()) {
                    JsonElement uid = jsonObject.get(UID);
                    if (uid != null && uid.isJsonPrimitive()) {
                        if (uid.getAsString().equals(myTenantId.getAsString())) {
                            result = true;
                            break;
                        }
                    }
                }
            }
        }
    }

    return result;
}