Example usage for org.json JSONWriter object

Introduction

In this page you can find the example usage for org.json JSONWriter object.

Prototype

public JSONWriter object() throws JSONException

Source Link

Document

Begin appending a new object.

Usage

From source file:com.vaynberg.wicket.select2.AbstractSelect2Choice.java

@Override
public void onResourceRequested() {

    // this is the callback that retrieves matching choices used to populate the dropdown

    Request request = getRequestCycle().getRequest();
    IRequestParameters params = request.getRequestParameters();

    // retrieve choices matching the search term

    String term = params.getParameterValue("term").toOptionalString();

    int page = params.getParameterValue("page").toInt(1);
    // select2 uses 1-based paging, but in wicket world we are used to
    // 0-based/*  ww  w.j av  a  2  s . c  o m*/
    page -= 1;

    Response<T> response = new Response<T>();
    provider.query(term, page, response);

    // jsonize and write out the choices to the response

    WebResponse webResponse = (WebResponse) getRequestCycle().getResponse();
    webResponse.setContentType("application/json");

    OutputStreamWriter out = new OutputStreamWriter(webResponse.getOutputStream(), getRequest().getCharset());
    JSONWriter json = new JSONWriter(out);

    try {
        json.object();
        json.key("results").array();
        for (T item : response) {
            json.object();
            provider.toJson(item, json);
            json.endObject();
        }
        json.endArray();
        json.key("more").value(response.getHasMore()).endObject();
    } catch (JSONException e) {
        throw new RuntimeException("Could not write Json response", e);
    }

    try {
        out.flush();
    } catch (IOException e) {
        throw new RuntimeException("Could not write Json to servlet response", e);
    }
}