joynr.dispatching.subscription.util.SubscriptionUtil.js Maven / Gradle / Ivy

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JOYnr JavaScript libjoynr-js
There is a newer version: 1.4.0
/*global JSON: true */

/*
 * #%L
 * %%
 * Copyright (C) 2011 - 2015 BMW Car IT GmbH
 * %%
 * Licensed 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.
 * #L%
 */

define("joynr/dispatching/subscription/util/SubscriptionUtil", [], function() {
    /**
     * @exports SubscriptionUtil
     */
    var SubscriptionUtil = {};
    /**
     * @param {Map.} subscriptions - Map<String,
     *     SubscriptionInformation> containing the subscriptions to be serialized
     *
     * @returns {String} serialized subscriptions
     */
    SubscriptionUtil.serializeSubscriptions = function(subscriptions) {
        var result = [], subscriptionId;
        for (subscriptionId in subscriptions) {
            if (subscriptions.hasOwnProperty(subscriptionId)) {
                result[result.length] = subscriptions[subscriptionId];
            }
        }

        return JSON.stringify(result);
    };

    /**
     * @param {Map.} subscriptions - Map<String,
     *     SubscriptionInformation> containing the subscriptions to be serialized
     *
     * @returns {String} serialized subscriptionIds
     */
    SubscriptionUtil.serializeSubscriptionIds = function(subscriptions) {
        var result = [], subscriptionId;
        for (subscriptionId in subscriptions) {
            if (subscriptions.hasOwnProperty(subscriptionId)) {
                result[result.length] = subscriptionId;
            }
        }

        return JSON.stringify(result);
    };

    /**
     * @param {String} subscriptions - serialized subscriptions as String
     *
     * @returns {Map.} deserialized subscriptions
     *     as Map.<String, SubscriptionInformation>
     */
    SubscriptionUtil.deserializeSubscriptions = function(subscriptions) {
        var array, result = {}, subscription;
        if (JSON && JSON.parse) {
            try {
                array = JSON.parse(subscriptions);
            } catch (err) {
                throw new Error(err);
            }
        }

        for (subscription in array) {
            if (array.hasOwnProperty(subscription)) {
                var object = array[subscription];
                result[object.subscriptionId] = object;
            }
        }
        return result;
    };

    /**
     * @param {String} subscriptions - serialized subscriptions as String
     *
     * @returns {Array.} deserialized subscriptionIds as Array of String
     */
    SubscriptionUtil.deserializeSubscriptionIds = function(subscriptions) {
        var result = [];
        if (JSON && JSON.parse) {
            try {
                result = JSON.parse(subscriptions);
            } catch (err) {
                throw new Error(err);
            }
        }

        return result;
    };

    return SubscriptionUtil;
});