/**
* Method invoked to serialize the result of the invoked method and write this value to the
* response.
*
* @param response The current response object.
* @param result The object to write to response.
* @param restMimeFormats
*/
private void serializeObjectToResponse(WebResponse response, Object result, String mimeType) {
try {
response.setContentType(mimeType);
objSerialDeserial.objectToResponse(result, response, mimeType);
} catch (Exception e) {
throw new RuntimeException("Error writing object to response.", e);
}
}
@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
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);
}
}
@Override
public void setContentType(WebResponse response, String encoding) {
response.setContentType("text/xml; charset=" + encoding);
}