Example usage for com.google.gson JsonNull INSTANCE

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In this page you can find the example usage for com.google.gson JsonNull INSTANCE.

Prototype

JsonNull INSTANCE

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singleton for JsonNull

Usage

From source file:monasca.common.middleware.FilterUtils.java

License:Apache License

private static void wrapRequestFromHttpV3Response(ServletRequest req, String data) {
    StringBuilder tenants = new StringBuilder();
    StringBuilder nonTenants = new StringBuilder();
    JsonParser jp = new JsonParser();
    JsonObject token = jp.parse(data).getAsJsonObject().get("token").getAsJsonObject();
    // Domain Scoped Token
    if (token.get("domain") != null) {
        JsonObject domain = token.get("domain").getAsJsonObject();
        req.setAttribute(AUTH_DOMAIN_ID, domain.get("id").getAsString());
        if (domain.get("name") != null) {
            req.setAttribute(AUTH_DOMAIN_NAME, domain.get("name").getAsString());
        }//from   www  .j  a  va2 s .  com
    }
    // Project Scoped Token
    if (token.get("project") != null) {
        JsonObject project = token.get("project").getAsJsonObject();
        req.setAttribute(AUTH_PROJECT_ID, project.get("id").getAsString());
        req.setAttribute(AUTH_PROJECT_NAME, project.get("name").getAsString());

        JsonObject projectDomain = project.get("domain").getAsJsonObject();
        // special case where the value of id is null and the
        // projectDomain.get("id") != null
        if (!projectDomain.get("id").equals(JsonNull.INSTANCE)) {
            req.setAttribute(AUTH_PROJECT_DOMAIN_ID, projectDomain.get("id").getAsString());
        }
        if (projectDomain.get("name") != null) {
            req.setAttribute(AUTH_PROJECT_DOMAIN_NAME, projectDomain.get("name"));
        }
    }
    // User info
    if (token.get("user") != null) {
        JsonObject user = token.get("user").getAsJsonObject();
        req.setAttribute(AUTH_USER_ID, user.get("id").getAsString());
        req.setAttribute(AUTH_USER_NAME, user.get("name").getAsString());

        JsonObject userDomain = user.get("domain").getAsJsonObject();
        if (userDomain.get("id") != null) {
            req.setAttribute(AUTH_USER_DOMAIN_ID, userDomain.get("id").getAsString());
        }
        if (userDomain.get("name") != null) {
            req.setAttribute(AUTH_USER_DOMAIN_NAME, userDomain.get("name").getAsString());
        }

    }
    // Roles
    JsonArray roles = token.getAsJsonArray("roles");
    if (roles != null) {
        Iterator<JsonElement> it = roles.iterator();
        StringBuilder roleBuilder = new StringBuilder();
        while (it.hasNext()) {

            //Changed to meet my purposes
            JsonObject role = it.next().getAsJsonObject();
            String currentRole = role.get("name").getAsString();
            roleBuilder.append(currentRole).append(",");
        }
        //My changes to meet my needs
        req.setAttribute(AUTH_ROLES, roleBuilder.toString());
    }
    String tenantRoles = (tenants.length() > 0) ? tenants.substring(1) : tenants.toString();
    String nonTenantRoles = (nonTenants.length() > 0) ? nonTenants.substring(1) : nonTenants.toString();
    if (!tenantRoles.equals("")) {
        req.setAttribute(AUTH_ROLES, tenantRoles);
    }
    if (!nonTenantRoles.equals("")) {
        req.setAttribute(AUTH_HP_IDM_ROLES, nonTenantRoles);
    }
    // Catalog
    if (token.get("catalog") != null && appConfig.isIncludeCatalog()) {
        JsonArray catalog = token.get("catalog").getAsJsonArray();
        req.setAttribute(AUTH_SERVICE_CATALOG, catalog.toString());
    }
}

From source file:net.javacrumbs.jsonunit.core.internal.GsonNodeFactory.java

License:Apache License

@Override
protected Node nullNode() {
    return newNode(JsonNull.INSTANCE);
}

From source file:net.karlmartens.platform.datatable.DataTableCell.java

License:Apache License

private static JsonElement creasteJsonElement(Object o) {
    if (o == null)
        return JsonNull.INSTANCE;

    if (o instanceof String)
        return new JsonPrimitive((String) o);

    if (o instanceof Boolean)
        return new JsonPrimitive((Boolean) o);

    if (o instanceof Number)
        return new JsonPrimitive((Number) o);

    if (o instanceof BaseLocal) {
        final BaseLocal date = (BaseLocal) o;
        final JsonObject json = new JsonObject();
        json.add("year", createJsonElement(DateTimeFieldType.year(), date));
        json.add("month", createJsonElement(DateTimeFieldType.monthOfYear(), date));
        json.add("day", createJsonElement(DateTimeFieldType.dayOfMonth(), date));
        json.add("hour", createJsonElement(DateTimeFieldType.hourOfDay(), date));
        json.add("minute", createJsonElement(DateTimeFieldType.minuteOfHour(), date));
        json.add("second", createJsonElement(DateTimeFieldType.secondOfMinute(), date));
        json.add("millis", createJsonElement(DateTimeFieldType.millisOfSecond(), date));
        return json;
    }//  www .ja  v  a 2 s.co  m

    throw new UnsupportedOperationException();
}

From source file:net.karlmartens.platform.datatable.DataTableCell.java

License:Apache License

private static JsonElement createJsonElement(DateTimeFieldType field, BaseLocal local) {
    if (!local.isSupported(field))
        return JsonNull.INSTANCE;

    return new JsonPrimitive(local.get(field));
}

From source file:net.karlmartens.platform.datatable.DataTableColumn.java

License:Apache License

public JsonElement toJson() {
    final JsonObject json = new JsonObject();
    json.addProperty("id", _id);
    json.addProperty("label", _label);
    json.addProperty("pattern", _pattern);
    json.add("role", _role == null ? JsonNull.INSTANCE : _role.toJson());
    json.add("type", _type == null ? JsonNull.INSTANCE : _type.toJson());
    return json;//  w  ww  .  j av a 2 s . c om
}

From source file:nl.talsmasoftware.enumerables.support.json.gson.EnumerableSerializer.java

License:Apache License

private static JsonElement jsonString(String object) {
    return object != null ? new JsonPrimitive(object) : JsonNull.INSTANCE;
}

From source file:nl.talsmasoftware.enumerables.support.json.gson.EnumerableSerializer.java

License:Apache License

protected JsonElement serialize(Object value) {
    if (value == null)
        return JsonNull.INSTANCE;
    else if (value instanceof CharSequence)
        return new JsonPrimitive(value.toString());
    else if (value instanceof Number)
        return new JsonPrimitive((Number) value);
    else if (value instanceof Character)
        return new JsonPrimitive((Character) value);
    else if (value instanceof Boolean)
        return new JsonPrimitive((Boolean) value);
    // Otherwise, reflect the value
    JsonObject result = new JsonObject();
    for (Map.Entry<String, Object> property : getPropertyValues(value).entrySet()) {
        if (!"class".equals(property.getKey()))
            result.add(property.getKey(), serialize(property.getValue()));
    }//  w  w w  .j  a  v  a  2  s  . c  o m
    return result;
}

From source file:org.apache.edgent.runtime.jsoncontrol.JsonControlService.java

License:Apache License

/**
 * Handle a JSON control request./*from ww  w . j a  v a2 s .com*/
 * 
 * The control action is executed directly
 * using the calling thread.
 * 
 * @param request the request
 * @return JSON response, JSON null if the request was not recognized.
 * @throws Exception on failure
 */
public JsonElement controlRequest(JsonObject request) throws Exception {
    if (request.has(OP_KEY))
        return controlOperation(request);

    return JsonNull.INSTANCE;
}

From source file:org.apache.gobblin.converter.avro.JsonRecordAvroSchemaToAvroConverter.java

License:Apache License

public static GenericRecord convertNestedRecord(Schema outputSchema, JsonObject inputRecord,
        WorkUnitState workUnit, List<String> ignoreFields) throws DataConversionException {
    GenericRecord avroRecord = new GenericData.Record(outputSchema);
    JsonElementConversionWithAvroSchemaFactory.JsonElementConverter converter;
    for (Schema.Field field : outputSchema.getFields()) {

        if (ignoreFields.contains(field.name())) {
            continue;
        }//from ww  w . j av  a 2  s .  c o m

        Schema.Type type = field.schema().getType();
        boolean nullable = false;
        Schema schema = field.schema();

        if (type.equals(Schema.Type.UNION)) {
            nullable = true;
            List<Schema> types = field.schema().getTypes();
            if (types.size() != 2) {
                throw new DataConversionException("Unions must be size 2, and contain one null");
            }
            if (field.schema().getTypes().get(0).getType().equals(Schema.Type.NULL)) {
                schema = field.schema().getTypes().get(1);
                type = schema.getType();
            } else if (field.schema().getTypes().get(1).getType().equals(Schema.Type.NULL)) {
                schema = field.schema().getTypes().get(0);
                type = schema.getType();
            } else {
                throw new DataConversionException("Unions must be size 2, and contain one null");
            }

            if (inputRecord.get(field.name()) == null) {
                inputRecord.add(field.name(), JsonNull.INSTANCE);
            }
        }

        if (inputRecord.get(field.name()) == null) {
            throw new DataConversionException("Field missing from record: " + field.name());
        }

        if (type.equals(Schema.Type.RECORD)) {
            if (nullable && inputRecord.get(field.name()).isJsonNull()) {
                avroRecord.put(field.name(), null);
            } else {
                avroRecord.put(field.name(), convertNestedRecord(schema,
                        inputRecord.get(field.name()).getAsJsonObject(), workUnit, ignoreFields));
            }
        } else {
            try {
                converter = JsonElementConversionWithAvroSchemaFactory.getConvertor(field.name(),
                        type.getName(), schema, workUnit, nullable, ignoreFields);
                avroRecord.put(field.name(), converter.convert(inputRecord.get(field.name())));
            } catch (Exception e) {
                throw new DataConversionException("Could not convert field " + field.name(), e);
            }
        }
    }
    return avroRecord;
}

From source file:org.apache.gobblin.converter.csv.CsvToJsonConverter.java

License:Apache License

/**
 * Takes in a record with format String and splits the data based on SOURCE_SCHEMA_DELIMITER
 * Uses the inputSchema and the split record to convert the record to a JsonObject
 * @return a JsonObject representing the record
 * @throws DataConversionException//from ww w .  ja v a2  s .c  om
 */
@Override
public Iterable<JsonObject> convertRecord(JsonArray outputSchema, String inputRecord, WorkUnitState workUnit)
        throws DataConversionException {
    try {
        String strDelimiter = workUnit.getProp(ConfigurationKeys.CONVERTER_CSV_TO_JSON_DELIMITER);
        if (Strings.isNullOrEmpty(strDelimiter)) {
            throw new IllegalArgumentException("Delimiter cannot be empty");
        }
        InputStreamCSVReader reader = new InputStreamCSVReader(inputRecord, strDelimiter.charAt(0),
                workUnit.getProp(ConfigurationKeys.CONVERTER_CSV_TO_JSON_ENCLOSEDCHAR,
                        ConfigurationKeys.DEFAULT_CONVERTER_CSV_TO_JSON_ENCLOSEDCHAR).charAt(0));
        List<String> recordSplit;
        recordSplit = Lists.newArrayList(reader.splitRecord());
        JsonObject outputRecord = new JsonObject();

        for (int i = 0; i < outputSchema.size(); i++) {
            if (i < recordSplit.size()) {
                if (recordSplit.get(i) == null) {
                    outputRecord.add(outputSchema.get(i).getAsJsonObject().get("columnName").getAsString(),
                            JsonNull.INSTANCE);
                } else if (recordSplit.get(i).isEmpty() || recordSplit.get(i).toLowerCase().equals(NULL)) {
                    outputRecord.add(outputSchema.get(i).getAsJsonObject().get("columnName").getAsString(),
                            JsonNull.INSTANCE);
                } else {
                    outputRecord.addProperty(
                            outputSchema.get(i).getAsJsonObject().get("columnName").getAsString(),
                            recordSplit.get(i));
                }
            } else {
                outputRecord.add(outputSchema.get(i).getAsJsonObject().get("columnName").getAsString(),
                        JsonNull.INSTANCE);
            }
        }

        return new SingleRecordIterable<>(outputRecord);
    } catch (Exception e) {
        throw new DataConversionException(e);
    }
}