org.ednovo.gooru.json.serializer.util.JsonSerializer.java Source code

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Here is the source code for org.ednovo.gooru.json.serializer.util.JsonSerializer.java

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/////////////////////////////////////////////////////////////
// JsonSerializer.java
// gooru-api
// Created by Gooru on 2014
// Copyright (c) 2014 Gooru. All rights reserved.
// http://www.goorulearning.org/
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
/////////////////////////////////////////////////////////////
package org.ednovo.gooru.json.serializer.util;

import org.apache.commons.lang.ArrayUtils;
import org.ednovo.gooru.core.exception.MethodFailureException;
import org.json.JSONObject;
import org.springframework.validation.Errors;
import org.springframework.web.servlet.ModelAndView;

import com.thoughtworks.xstream.XStream;

import flexjson.JSONSerializer;

public class JsonSerializer {

    public static final String FORMAT_JSON = "json";

    public static ModelAndView toModelAndView(Object object) {
        ModelAndView jsonmodel = new ModelAndView("rest/model");
        jsonmodel.addObject("model", object);
        return jsonmodel;
    }

    public static ModelAndView toJsonModelAndView(Object model, boolean deepSerialize) {
        return toModelAndView(serializeToJson(model, deepSerialize));
    }

    public static ModelAndView toModelAndView(Object obj, String type) {
        return toModelAndView(serialize(obj, type));
    }

    public static ModelAndView toModelAndViewWithInFilter(Object obj, String type, String... includes) {
        return toModelAndView(serialize(obj, type, null, includes));
    }

    public static ModelAndView toModelAndViewWithIoFilter(Object obj, String type, String[] excludes,
            String... includes) {
        return toModelAndView(serialize(obj, type, excludes, includes));
    }

    // need to improve logic
    public static ModelAndView toModelAndViewWithErrorObject(Object obj, String type, String entityName,
            Errors errors, String[] excludes, String... includes) {
        return toModelAndView(serialize(obj, type, excludes, includes));
    }

    /**
     * @param model
     * @param excludes
     * @param includes
     * @return
     */
    public static String serializeToJsonWithExcludes(Object model, String[] excludes, String... includes) {
        return serialize(model, FORMAT_JSON, excludes, includes);
    }

    public static String serialize(Object model, String type) {
        return serialize(model, type, null);
    }

    public static String serializeToJson(Object model, String... includes) {
        return serialize(model, FORMAT_JSON, null, includes);
    }

    public static JSONObject serializeToJsonObjectWithExcludes(Object model, String[] excludes, String... includes)
            throws Exception {
        return new JSONObject(serialize(model, FORMAT_JSON, excludes, includes));
    }

    public static JSONObject serializeToJsonObject(Object model, String... includes) throws Exception {
        return new JSONObject(serialize(model, FORMAT_JSON, null, includes));
    }

    public static String serializeToJsonWithExcludes(Object model, String[] excludes, boolean deepSerialize,
            String... includes) {
        return serialize(model, FORMAT_JSON, excludes, deepSerialize, includes);
    }

    public static String serializeToJson(Object model, boolean deepSerialize, String... includes) {
        return serialize(model, FORMAT_JSON, null, deepSerialize, includes);
    }

    public static JSONObject serializeToJsonObjectWithExcludes(Object model, String[] excludes,
            boolean deepSerialize, String... includes) throws Exception {
        return new JSONObject(serialize(model, FORMAT_JSON, excludes, deepSerialize, includes));
    }

    public static JSONObject serializeToJsonObject(Object model, boolean deepSerialize, String... includes)
            throws Exception {
        return new JSONObject(serialize(model, FORMAT_JSON, null, deepSerialize, includes));
    }

    /**
     * @param model
     * @param type
     * @param excludes
     * @param includes
     * @return
     */
    public static String serialize(Object model, String type, String[] excludes, boolean deepSerialize,
            String... includes) {
        if (model == null) {
            return "";
        }
        String serializedData = null;
        JSONSerializer serializer = new JSONSerializer();

        if (type == null || type.equals("json")) {

            if (includes != null) {
                includes = (String[]) ArrayUtils.add(includes, "*.contentPermissions");
                serializer.include(includes);
            } else {
                serializer.include("*.contentPermissions");
            }

            if (excludes != null) {
                serializer.exclude(excludes);
            }

            try {

                serializedData = deepSerialize ? serializer.deepSerialize(model) : serializer.serialize(model);

            } catch (Exception ex) {
                throw new MethodFailureException(ex.getMessage());
            }

        } else {
            serializedData = new XStream().toXML(model);
        }
        return serializedData;
    }

    /**
     * @param model
     * @param type
     * @param excludes
     * @param includes
     * @return
     */
    public static String serialize(Object model, String type, String[] excludes, String... includes) {
        return serialize(model, type, excludes, false, includes);
    }

}