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

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

Source

/**
 * 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.lang.reflect.Type;

import com.claresco.tinman.lrs.XapiInteractionComponent;
import com.claresco.tinman.lrs.XapiLanguageMap;
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;

/**
 * XapiInteractionComponentJson.java
 *
 *
 *
 *
 *
 * @author rheza
 * on Mar 6, 2014
 * 
 */

public class XapiInteractionComponentJson
        implements JsonDeserializer<XapiInteractionComponent>, JsonSerializer<XapiInteractionComponent> {

    /* (non-Javadoc)
     * @see com.google.gson.JsonSerializer#serialize(java.lang.Object, java.lang.reflect.Type, com.google.gson.JsonSerializationContext)
     */
    @Override
    public JsonElement serialize(XapiInteractionComponent arg0, Type arg1, JsonSerializationContext arg2) {
        if (arg0.isEmpty()) {
            return null;
        }

        JsonObject result = new JsonObject();

        result.addProperty("id", arg0.getID());

        if (arg0.hasDescription()) {
            result.add("description", arg2.serialize(arg0.getDescription()));
        }

        return result;
    }

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

        String theID = JsonUtility.getElementAsString(theComponent, "id");

        //id is required
        if (theID == null) {
            throw new XapiBadInteractionException("ID is required for interaction component");
        }

        XapiLanguageMap theDescription = JsonUtility.delegateDeserialization(arg2,
                JsonUtility.get(theComponent, "description"), XapiLanguageMap.class);
        return new XapiInteractionComponent(theID, theDescription);
    }
}