Examples of org.apache.wicket.ajax.json.JSONObject

org.apache.wicket.ajax.json.JSONObject
A JSONObject is an unordered collection of name/value pairs. Its external form is a string wrapped in curly braces with colons between the names and values, and commas between the values and names. The internal form is an object having get and opt methods for accessing the values by name, and put methods for adding or replacing values by name. The values can be any of these types: Boolean, JSONArray, JSONObject, Number, String, or the JSONObject.NULL object. A JSONObject constructor can be used to convert an external form JSON text into an internal form whose values can be retrieved with the get and opt methods, or to convert values into a JSON text using the put and toString methods. A get method returns a value if one can be found, and throws an exception if one cannot be found. An opt method returns a default value instead of throwing an exception, and so is useful for obtaining optional values.
The generic get() and opt() methods return an object, which you can cast or query for type. There are also typed get and opt methods that do type checking and type coercion for you. The opt methods differ from the get methods in that they do not throw. Instead, they return a specified value, such as null.
The put methods add or replace values in an object. For example,
```
 myString = new JSONObject().put("JSON", "Hello, World!").toString(); 
```
produces the string {"JSON": "Hello, World"}.
The texts produced by the toString methods strictly conform to the JSON syntax rules. The constructors are more forgiving in the texts they will accept:
- An extra , (comma) may appear just before the closing brace.
- Strings may be quoted with ' (single quote).
- Strings do not need to be quoted at all if they do not begin with a quote or single quote, and if they do not contain leading or trailing spaces, and if they do not contain any of these characters: { } [ ] / \ : , = ; # and if they do not look like numbers and if they are not the reserved words true, false, or null.
- Keys can be followed by = or => as well as by :.
- Values can be followed by ; (semicolon) as well as by , (comma).
@author JSON.org @version 2012-04-20

   * 
   * @return JSON object with field values added
   * @throws JSONException
   */
  public JSONObject getJSON() throws JSONException {
    JSONObject jsonObject = super.getJSON(new JSONObject());
    jsonObject.put("p", p);
    jsonObject.put("age", age);


    return jsonObject;
  }

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   * 
   * @return JSON object with field values added
   * @throws JSONException
   */
  public JSONObject getJSON() throws JSONException {
    JSONObject jsonObject = super.getJSON(new JSONObject());
    jsonObject.put("obj", obj);
    jsonObject.put("s", s);
    jsonObject.put("t", t);


    return jsonObject;
  }

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   * 
   * @return JSON object with field values added
   * @throws JSONException
   */
  public JSONObject getJSON() throws JSONException {
    JSONObject jsonObject = super.getJSON(new JSONObject());
    jsonObject.put("r", r);


    return jsonObject;


  }

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    public Geocoder()
    {
    }


    public GLatLng decode(String response) throws GeocoderException, JSONException {
        JSONObject jsonResponse = new JSONObject(response);
        GeocoderStatus status = GeocoderStatus.valueOf(jsonResponse.getString("status"));
        if (status != GeocoderStatus.OK) {
            throw new GeocoderException(status);
        }
        JSONArray results = jsonResponse.getJSONArray("results");
        JSONObject location = results.getJSONObject(0).getJSONObject("geometry").getJSONObject("location");
        return new GLatLng(location.getDouble("lat"), location.getDouble("lng"));
    }

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   * @return the attributes as string in JSON format
   */
  protected final CharSequence renderAjaxAttributes(final Component component,
    AjaxRequestAttributes attributes)
  {
    JSONObject attributesJson = new JSONObject();


    try
    {
      attributesJson.put("u", getCallbackUrl());
      Method method = attributes.getMethod();
      if (Method.POST == method)
      {
        attributesJson.put("m", method);
      }


      if (component instanceof Page == false)
      {
        String componentId = component.getMarkupId();
        attributesJson.put("c", componentId);
      }


      String formId = attributes.getFormId();
      if (Strings.isEmpty(formId) == false)
      {
        attributesJson.put("f", formId);
      }


      if (attributes.isMultipart())
      {
        attributesJson.put("mp", true);
      }


      String submittingComponentId = attributes.getSubmittingComponentName();
      if (Strings.isEmpty(submittingComponentId) == false)
      {
        attributesJson.put("sc", submittingComponentId);
      }


      String indicatorId = findIndicatorId();
      if (Strings.isEmpty(indicatorId) == false)
      {
        attributesJson.put("i", indicatorId);
      }


      for (IAjaxCallListener ajaxCallListener : attributes.getAjaxCallListeners())
      {
        if (ajaxCallListener != null)
        {
          CharSequence beforeHandler = ajaxCallListener.getBeforeHandler(component);
          if (Strings.isEmpty(beforeHandler) == false)
          {
            String func = String.format(BEFORE_HANDLER_FUNCTION_TEMPLATE, beforeHandler);
            JsonFunction function = new JsonFunction(func);
            attributesJson.append("bh", function);
          }


          CharSequence afterHandler = ajaxCallListener.getAfterHandler(component);
          if (Strings.isEmpty(afterHandler) == false)
          {
            String func = String.format(AFTER_HANDLER_FUNCTION_TEMPLATE, afterHandler);
            JsonFunction function = new JsonFunction(func);
            attributesJson.append("ah", function);
          }


          CharSequence successHandler = ajaxCallListener.getSuccessHandler(component);
          if (Strings.isEmpty(successHandler) == false)
          {
            String func = String.format(SUCCESS_HANDLER_FUNCTION_TEMPLATE, successHandler);
            JsonFunction function = new JsonFunction(func);
            attributesJson.append("sh", function);
          }


          CharSequence failureHandler = ajaxCallListener.getFailureHandler(component);
          if (Strings.isEmpty(failureHandler) == false)
          {
            String func = String.format(FAILURE_HANDLER_FUNCTION_TEMPLATE, failureHandler);
            JsonFunction function = new JsonFunction(func);
            attributesJson.append("fh", function);
          }


          CharSequence completeHandler = ajaxCallListener.getCompleteHandler(component);
          if (Strings.isEmpty(completeHandler) == false)
          {
            String func = String.format(COMPLETE_HANDLER_FUNCTION_TEMPLATE, completeHandler);
            JsonFunction function = new JsonFunction(func);
            attributesJson.append("coh", function);
          }


          CharSequence precondition = ajaxCallListener.getPrecondition(component);
          if (Strings.isEmpty(precondition) == false)
          {
            String func = String.format(PRECONDITION_FUNCTION_TEMPLATE, precondition);
            JsonFunction function = new JsonFunction(func);
            attributesJson.append("pre", function);
          }
        }
      }


      JSONObject extraParameters = new JSONObject();
      Iterator<Entry<String, Object>> itor = attributes.getExtraParameters()
        .entrySet()
        .iterator();
      while (itor.hasNext())
      {
        Entry<String, Object> entry = itor.next();
        String name = entry.getKey();
        Object value = entry.getValue();
        extraParameters.accumulate(name, value);
      }
      if (extraParameters.length() > 0)
      {
        attributesJson.put("ep", extraParameters);
      }


      List<CharSequence> dynamicExtraParameters = attributes.getDynamicExtraParameters();
      if (dynamicExtraParameters != null)
      {
        for (CharSequence dynamicExtraParameter : dynamicExtraParameters)
        {
          String func = String.format(DYNAMIC_PARAMETER_FUNCTION_TEMPLATE, dynamicExtraParameter);
          JsonFunction function = new JsonFunction(func);
          attributesJson.append("dep", function);
        }
      }


      if (attributes.isAsynchronous() == false)
      {
        attributesJson.put("async", false);
      }


      String[] eventNames = attributes.getEventNames();
      if (eventNames.length == 1)
      {
        attributesJson.put("e", eventNames[0]);
      }
      else
      {
        for (String eventName : eventNames)
        {
          attributesJson.append("e", eventName);
        }
      }


      AjaxChannel channel = attributes.getChannel();
      if (channel != null)
      {
        attributesJson.put("ch", channel);
      }


      if (attributes.isAllowDefault())
      {
        attributesJson.put("ad", true);
      }


      Duration requestTimeout = attributes.getRequestTimeout();
      if (requestTimeout != null)
      {
        attributesJson.put("rt", requestTimeout.getMilliseconds());
      }


      boolean wicketAjaxResponse = attributes.isWicketAjaxResponse();
      if (wicketAjaxResponse == false)
      {
        attributesJson.put("wr", false);
      }


      String dataType = attributes.getDataType();
      if (AjaxRequestAttributes.XML_DATA_TYPE.equals(dataType) == false)
      {
        attributesJson.put("dt", dataType);
      }


      ThrottlingSettings throttlingSettings = attributes.getThrottlingSettings();
      if (throttlingSettings != null)
      {
        JSONObject throttlingSettingsJson = new JSONObject();
        throttlingSettingsJson.put("id", throttlingSettings.getId());
        throttlingSettingsJson.put("d", throttlingSettings.getDelay().getMilliseconds());
        if (throttlingSettings.getPostponeTimerOnUpdate())
        {
          throttlingSettingsJson.put("p", true);
        }
        attributesJson.put("tr", throttlingSettingsJson);
      }


      postprocessConfiguration(attributesJson, component);

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    try
    {
      CoreLibrariesContributor.contributeAjax(component.getApplication(), response);


      response.render(JavaScriptHeaderItem.forReference(JQueryWicketAtmosphereResourceReference.get()));
      JSONObject options = new JSONObject();
      options.put("url",
        component.urlFor(this, IResourceListener.INTERFACE, new PageParameters())
          .toString());
      response.render(OnDomReadyHeaderItem.forScript("$('#" + component.getMarkupId() +
        "').wicketAtmosphere(" + options.toString() + ")"));
    }
    catch (JSONException e)
    {
      throw new WicketRuntimeException(e);
    }

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