com.claresco.tinman.json.XapiContextActivitiesJson.java Source code

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Here is the source code for com.claresco.tinman.json.XapiContextActivitiesJson.java

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/**
 * ClarescoExperienceAPI
 * Copyright 
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * Please contact Claresco, www.claresco.com, if you have any questions.
 **/

package com.claresco.tinman.json;

import java.io.BufferedReader;
import java.io.FileReader;
import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.Arrays;

import com.claresco.tinman.lrs.XapiActivity;
import com.claresco.tinman.lrs.XapiContextActivities;
import com.claresco.tinman.lrs.XapiScore;
import com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParseException;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;
import com.sun.org.apache.bcel.internal.generic.NEWARRAY;

/**
 * XapiContextActivitiesJson.java
 *
 *
 *
 *
 *
 * @author rheza
 * on Mar 5, 2014
 * 
 */

public class XapiContextActivitiesJson
        implements JsonSerializer<XapiContextActivities>, JsonDeserializer<XapiContextActivities> {

    /* (non-Javadoc)
     * @see com.google.gson.JsonSerializer#serialize(java.lang.Object, java.lang.reflect.Type, com.google.gson.JsonSerializationContext)
     */
    @Override
    public JsonElement serialize(XapiContextActivities arg0, Type arg1, JsonSerializationContext arg2) {
        JsonObject result = new JsonObject();

        JsonArray theParentArray = new JsonArray();
        if (arg0.hasParent()) {
            for (XapiActivity activity : arg0.getParent()) {
                theParentArray.add(arg2.serialize(activity));
            }
            result.add("parent", theParentArray);
        }

        JsonArray theGroupingArray = new JsonArray();
        if (arg0.hasGrouping()) {
            for (XapiActivity activity : arg0.getGrouping()) {
                theGroupingArray.add(arg2.serialize(activity));
            }
            result.add("grouping", theGroupingArray);
        }

        if (arg0.hasCategory()) {
            JsonArray theCategoryArray = serialize(arg0.getCategory(), arg2);
            if (theCategoryArray != null) {
                result.add("category", theCategoryArray);
            }
        }

        if (arg0.hasOther()) {
            JsonArray theOtherArray = serialize(arg0.getOther(), arg2);
            if (theOtherArray != null) {
                result.add("other", theOtherArray);
            }
        }

        return result;
    }

    /* (non-Javadoc)
     * @see com.google.gson.JsonDeserializer#deserialize(com.google.gson.JsonElement, java.lang.reflect.Type, com.google.gson.JsonDeserializationContext)
     */
    @Override
    public XapiContextActivities deserialize(JsonElement arg0, Type arg1, JsonDeserializationContext arg2)
            throws JsonParseException {
        // TODO Auto-generated method stub
        JsonObject theContextActivities = JsonUtility.convertJsonElementToJsonObject(arg0);

        ArrayList<XapiActivity> theParent = new ArrayList<XapiActivity>();
        ArrayList<XapiActivity> theGrouping = new ArrayList<XapiActivity>();
        ArrayList<XapiActivity> theCategory = new ArrayList<XapiActivity>();
        ArrayList<XapiActivity> theOther = new ArrayList<XapiActivity>();

        theParent = JsonUtility.convertJsonArrayOfActivities(theContextActivities, "parent", theParent, arg2);

        theGrouping = JsonUtility.convertJsonArrayOfActivities(theContextActivities, "grouping", theGrouping, arg2);

        theCategory = JsonUtility.convertJsonArrayOfActivities(theContextActivities, "category", theCategory, arg2);

        theOther = JsonUtility.convertJsonArrayOfActivities(theContextActivities, "other", theOther, arg2);

        if (theParent.isEmpty()) {
            theParent = null;
        }

        if (theGrouping.isEmpty()) {
            theGrouping = null;
        }

        if (theCategory.isEmpty()) {
            theCategory = null;
        }

        if (theOther.isEmpty()) {
            theOther = null;
        }

        XapiContextActivities myContextActivities = new XapiContextActivities(theParent, theGrouping, theCategory,
                theOther);

        if (myContextActivities.isEmpty()) {
            return null;
        }

        return myContextActivities;
    }

    private JsonArray serialize(ArrayList<XapiActivity> theActivityArray,
            JsonSerializationContext theSerializationContext) {
        JsonArray theArray = new JsonArray();
        for (XapiActivity activity : theActivityArray) {
            theArray.add(theSerializationContext.serialize(activity, XapiActivity.class));
        }
        if (theArray.size() == 0) {
            return null;
        }
        return theArray;
    }

    public static void main(String[] args) {
        Gson gson = JsonUtility.createGson();

        String path = "/Users/rheza/Documents/workspace/ClarescoExperienceAPI/src/com/claresco/tinman/json/ContextActivities.json";

        try {
            BufferedReader bf = new BufferedReader(new FileReader(path));
            XapiContextActivities s = gson.fromJson(bf, XapiContextActivities.class);

            System.out.println(s);

            System.out.println(gson.toJson(s));

        } catch (Exception e) {
            e.printStackTrace();
        }

    }
}