/**
* Get the response from the URL
*
* @param url
* @return
* @throws TrailerAddictException
*/
private static DigestedResponse getResponse(String url) throws TrailerAddictException {
final DigestedResponse response;
try {
HttpGet httpGet = new HttpGet(url);
httpGet.addHeader("accept", "application/xml");
response = DigestedResponseReader.requestContent(HTTP_CLIENT, httpGet, CHARSET);
if (response.getStatusCode() >= 500) {
throw new TrailerAddictException(ApiExceptionType.HTTP_503_ERROR, url);
} else if (response.getStatusCode() >= 300) {
throw new TrailerAddictException(ApiExceptionType.HTTP_404_ERROR, url);
}
} catch (IOException ex) {
throw new TrailerAddictException(
ApiExceptionType.CONNECTION_ERROR, "Unable to read URL", url, ex);
}
return response;
}
/**
* Get a DOM document from the supplied URL
*
* @param url
* @return
* @throws TrailerAddictException
*/
public static synchronized Document getEventDocFromUrl(String url) throws TrailerAddictException {
final DigestedResponse response = getResponse(url);
try (InputStream in =
new ByteArrayInputStream(response.getContent().getBytes(DEFAULT_CHARSET))) {
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc = db.parse(in);
doc.getDocumentElement().normalize();
return doc;
} catch (UnsupportedEncodingException ex) {
throw new TrailerAddictException(
ApiExceptionType.INVALID_URL, "Unable to encode URL", url, ex);
} catch (ParserConfigurationException | SAXException | IOException error) {
throw new TrailerAddictException(
ApiExceptionType.MAPPING_FAILED, UNABLE_TO_PARSE, url, error);
}
}