private static synchronized void retrieveTestAccountsForAppIfNeeded() {
if (appTestAccounts != null) {
return;
}
appTestAccounts = new HashMap<String, TestAccount>();
// The data we need is split across two different FQL tables. We construct two queries, submit
// them
// together (the second one refers to the first one), then cross-reference the results.
// Get the test accounts for this app.
String testAccountQuery =
String.format(
"SELECT id,access_token FROM test_account WHERE app_id = %s", testApplicationId);
// Get the user names for those accounts.
String userQuery = "SELECT uid,name FROM user WHERE uid IN (SELECT id FROM #test_accounts)";
Bundle parameters = new Bundle();
// Build a JSON string that contains our queries and pass it as the 'q' parameter of the query.
JSONObject multiquery;
try {
multiquery = new JSONObject();
multiquery.put("test_accounts", testAccountQuery);
multiquery.put("users", userQuery);
} catch (JSONException exception) {
throw new FacebookException(exception);
}
parameters.putString("q", multiquery.toString());
// We need to authenticate as this app.
parameters.putString("access_token", getAppAccessToken());
Request request = new Request(null, "fql", parameters, null);
Response response = request.executeAndWait();
if (response.getError() != null) {
throw response.getError().getException();
}
FqlResponse fqlResponse = response.getGraphObjectAs(FqlResponse.class);
GraphObjectList<FqlResult> fqlResults = fqlResponse.getData();
if (fqlResults == null || fqlResults.size() != 2) {
throw new FacebookException("Unexpected number of results from FQL query");
}
// We get back two sets of results. The first is from the test_accounts query, the second from
// the users query.
Collection<TestAccount> testAccounts =
fqlResults.get(0).getFqlResultSet().castToListOf(TestAccount.class);
Collection<UserAccount> userAccounts =
fqlResults.get(1).getFqlResultSet().castToListOf(UserAccount.class);
// Use both sets of results to populate our static array of accounts.
populateTestAccounts(testAccounts, userAccounts);
return;
}
