/**
* Makes a rest request of any type at the specified urlSuffix. The urlSuffix should be of the
* form /userService/users. If CS throws an exception it handled and transalated to a Openfire
* exception if possible. This is done using the check fault method that tries to throw the best
* maching exception.
*
* @param type Must be GET or DELETE
* @param urlSuffix The url suffix of the rest request
* @param xmlParams The xml with the request params, must be null if type is GET or DELETE only
* @return The response as a xml doc.
* @throws ConnectionException Thrown if there are issues perfoming the request.
* @throws Exception Thrown if the response from Clearspace contains an exception.
*/
public Element executeRequest(HttpType type, String urlSuffix, String xmlParams)
throws ConnectionException, Exception {
if (Log.isDebugEnabled()) {
Log.debug("Outgoing REST call [" + type + "] to " + urlSuffix + ": " + xmlParams);
}
String wsUrl = getConnectionURI() + WEBSERVICES_PATH + urlSuffix;
String secret = getSharedSecret();
HttpClient client = new HttpClient();
HttpMethod method;
// Configures the authentication
client.getParams().setAuthenticationPreemptive(true);
Credentials credentials = new UsernamePasswordCredentials(OPENFIRE_USERNAME, secret);
AuthScope scope = new AuthScope(host, port, AuthScope.ANY_REALM);
client.getState().setCredentials(scope, credentials);
// Creates the method
switch (type) {
case GET:
method = new GetMethod(wsUrl);
break;
case POST:
PostMethod pm = new PostMethod(wsUrl);
StringRequestEntity requestEntity = new StringRequestEntity(xmlParams);
pm.setRequestEntity(requestEntity);
method = pm;
break;
case PUT:
PutMethod pm1 = new PutMethod(wsUrl);
StringRequestEntity requestEntity1 = new StringRequestEntity(xmlParams);
pm1.setRequestEntity(requestEntity1);
method = pm1;
break;
case DELETE:
method = new DeleteMethod(wsUrl);
break;
default:
throw new IllegalArgumentException();
}
method.setRequestHeader("Accept", "text/xml");
method.setDoAuthentication(true);
try {
// Executes the request
client.executeMethod(method);
// Parses the result
String body = method.getResponseBodyAsString();
if (Log.isDebugEnabled()) {
Log.debug("Outgoing REST call results: " + body);
}
// Checks the http status
if (method.getStatusCode() != 200) {
if (method.getStatusCode() == 401) {
throw new ConnectionException(
"Invalid password to connect to Clearspace.",
ConnectionException.ErrorType.AUTHENTICATION);
} else if (method.getStatusCode() == 404) {
throw new ConnectionException(
"Web service not found in Clearspace.", ConnectionException.ErrorType.PAGE_NOT_FOUND);
} else if (method.getStatusCode() == 503) {
throw new ConnectionException(
"Web service not avaible in Clearspace.",
ConnectionException.ErrorType.SERVICE_NOT_AVAIBLE);
} else {
throw new ConnectionException(
"Error connecting to Clearspace, http status code: " + method.getStatusCode(),
new HTTPConnectionException(method.getStatusCode()),
ConnectionException.ErrorType.OTHER);
}
} else if (body.contains("Clearspace Upgrade Console")) {
// TODO Change CS to send a more standard error message
throw new ConnectionException(
"Clearspace is in an update state.", ConnectionException.ErrorType.UPDATE_STATE);
}
Element response = localParser.get().parseDocument(body).getRootElement();
// Check for exceptions
checkFault(response);
// Since there is no exception, returns the response
return response;
} catch (DocumentException e) {
throw new ConnectionException(
"Error parsing the response of Clearspace.", e, ConnectionException.ErrorType.OTHER);
} catch (HttpException e) {
throw new ConnectionException(
"Error performing http request to Clearspace", e, ConnectionException.ErrorType.OTHER);
} catch (UnknownHostException e) {
throw new ConnectionException(
"Unknown Host " + getConnectionURI() + " trying to connect to Clearspace",
e,
ConnectionException.ErrorType.UNKNOWN_HOST);
} catch (IOException e) {
throw new ConnectionException(
"Error peforming http request to Clearspace.", e, ConnectionException.ErrorType.OTHER);
} finally {
method.releaseConnection();
}
}
