# ValidatorConstants.java

    /*
     * Copyright (c) 2019, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
     *
     * WSO2 Inc. licenses this file to you under the Apache License,
     * Version 2.0 (the "License"); you may not use this file except
     * in compliance with the License.
     * You may obtain a copy of the License at
     *
     * http://www.apache.org/licenses/LICENSE-2.0
     *
     * Unless required by applicable law or agreed to in writing,
     * software distributed under the License is distributed on an
     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
     * KIND, either express or implied. See the License for the
     * specific language governing permissions and limitations
     * under the License.
     */

    package org.apache.synapse.commons.json.jsonprocessor.constants;

    import java.util.Arrays;
    import java.util.HashSet;
    import java.util.Set;

    /**
     * Constants used in JSON parser.
     */
    public class ValidatorConstants {

        private ValidatorConstants() {
        }

        public static final String TYPE_KEY = "type";
        public static final String ENUM = "enum";
        public static final String CONST = "const";

        public static final Set<String> NUMERIC_KEYS = new HashSet<>(Arrays.asList("number", "integer"));
        public static final Set<String> BOOLEAN_KEYS = new HashSet<>(Arrays.asList("boolean"));
        public static final Set<String> NOMINAL_KEYS = new HashSet<>(Arrays.asList("String", "string"));
        public static final Set<String> OBJECT_KEYS = new HashSet<>(Arrays.asList("object"));
        public static final Set<String> ARRAY_KEYS = new HashSet<>(Arrays.asList("array"));
        public static final Set<String> NULL_KEYS = new HashSet<>(Arrays.asList("null"));
    }