public Request subscribeAccount(AccountID... accounts) {
Request request = newRequest(Command.subscribe);
JSONArray accounts_arr = new JSONArray();
for (AccountID acc : accounts) {
accounts_arr.put(acc);
}
request.json("accounts", accounts_arr);
return request;
}
void onResponse(JSONObject msg) {
Request request = requests.remove(msg.optInt("id", -1));
if (request == null) {
log(Level.WARNING, "Response without a request: {0}", msg);
return;
}
request.handleResponse(msg);
}
public Request subscribeBookOffers(Issue get, Issue pay) {
Request request = newRequest(Command.subscribe);
JSONObject book = new JSONObject();
JSONArray books = new JSONArray(new Object[] {book});
book.put("snapshot", true);
book.put("taker_gets", get.toJSON());
book.put("taker_pays", pay.toJSON());
request.json("books", books);
return request;
}
public <T> Request makeManagedRequest(
final Command cmd, final Manager<T> manager, final Request.Builder<T> builder) {
final Request request = newRequest(cmd);
final boolean[] responded = new boolean[] {false};
request.once(
Request.OnTimeout.class,
new Request.OnTimeout() {
@Override
public void called(Response args) {
if (!responded[0] && manager.retryOnUnsuccessful(null)) {
logRetry(request, "Request timed out");
request.clearAllListeners();
queueRetry(50, cmd, manager, builder);
}
}
});
final OnDisconnected cb =
new OnDisconnected() {
@Override
public void called(Client c) {
if (!responded[0] && manager.retryOnUnsuccessful(null)) {
logRetry(request, "Client disconnected");
request.clearAllListeners();
queueRetry(50, cmd, manager, builder);
}
}
};
once(OnDisconnected.class, cb);
request.once(
Request.OnResponse.class,
new Request.OnResponse() {
@Override
public void called(final Response response) {
responded[0] = true;
Client.this.removeListener(OnDisconnected.class, cb);
if (response.succeeded) {
final T t = builder.buildTypedResponse(response);
manager.cb(response, t);
} else {
if (manager.retryOnUnsuccessful(response)) {
queueRetry(50, cmd, manager, builder);
} else {
manager.cb(response, null);
}
}
}
});
builder.beforeRequest(request);
manager.beforeRequest(request);
request.request();
return request;
}
private void subscribe(JSONObject subscription) {
Request request = newRequest(Command.subscribe);
request.json(subscription);
request.on(
Request.OnSuccess.class,
new Request.OnSuccess() {
@Override
public void called(Response response) {
// TODO ... make sure this isn't just an account subscription
serverInfo.update(response.result);
emit(OnSubscribed.class, serverInfo);
}
});
request.request();
}
void manageTimedOutRequests() {
long now = System.currentTimeMillis();
ArrayList<Request> timedOut = new ArrayList<Request>();
for (Request request : requests.values()) {
if (request.sendTime != 0) {
long since = now - request.sendTime;
if (since >= Request.TIME_OUT) {
timedOut.add(request);
}
}
}
for (Request request : timedOut) {
request.emit(Request.OnTimeout.class, request.response);
requests.remove(request.id);
}
}
public void sendRequest(final Request request) {
Logger reqLog = Request.logger;
try {
requests.put(request.id, request);
request.bumpSendTime();
sendMessage(request.toJSON());
// Better safe than sorry
} catch (Exception e) {
if (reqLog.isLoggable(Level.WARNING)) {
reqLog.log(Level.WARNING, "Exception when trying to request: {0}", e);
}
nextTickOrWhenConnected(
new OnConnected() {
@Override
public void called(Client args) {
sendRequest(request);
}
});
}
}
private void logRetry(Request request, String reason) {
if (logger.isLoggable(Level.WARNING)) {
log(
Level.WARNING,
previousUri
+ ": "
+ reason
+ ", muting listeners "
+ "for "
+ request.json()
+ "and trying again");
}
}
private static void walkAccountTx(final Client c, final Object marker, final int pages) {
Request request = c.newRequest(Command.account_tx);
request.json("binary", true);
request.json("account", theAccount);
if (marker != null) {
request.json("marker", marker);
}
request.json("ledger_index_max", -1);
request.once(
Request.OnSuccess.class,
new Request.OnSuccess() {
@Override
public void called(Response response) {
JSONObject result = response.result;
try {
JSONArray transactions = result.getJSONArray("transactions");
System.out.printf("Found %d (more) transactions %n", transactions.length());
appendTo(outputFile, result.toString());
Object newMarker = result.opt("marker");
System.out.printf("Marker %s%n", newMarker);
if (marker != null
&& newMarker != null
&& marker.toString().equals(newMarker.toString())) {
// This shouldn't happen since Stef's patch but who knows how
// pervasively it's been deployed ?
// return;
newMarker = null;
}
if ((newMarker != null) && (pages - 1 > 0) && transactions.length() > 0) {
System.out.printf("Found new marker %s%n", newMarker);
walkAccountTx(c, newMarker, pages - 1);
} else {
System.out.printf("Found all transactions");
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}
});
request.request();
}
public Request requestBookOffers(Issue get, Issue pay) {
Request request = newRequest(Command.book_offers);
request.json("taker_gets", get.toJSON());
request.json("taker_pays", pay.toJSON());
return request;
}
public Request accountInfo(AccountID account) {
Request req = newRequest(Command.account_info);
req.json("account", account.address);
return req;
}
public Request accountLines(AccountID account) {
Request req = newRequest(Command.account_lines);
req.json("account", account.address);
return req;
}
public Request submit(String tx_blob, boolean fail_hard) {
Request req = newRequest(Command.submit);
req.json("tx_blob", tx_blob);
req.json("fail_hard", fail_hard);
return req;
}
@Test
public void testMockPairSubscription() throws JSONException {
MockPair pair = new MockPair().connect();
MockPair.RippledMock mock = pair.server;
Client client = pair.client;
// We can pop the latest JSON message received from the client then
// actually get the Request object (to inspect and set event handlers etc)
final Request subscribeRequest = mock.popMessage().getRequest(client);
assertEquals(
"We expect the first message sent by the client to be a subscribe request",
Command.subscribe,
subscribeRequest.cmd);
// There's a buffer for read/unread messages sent from client
assertEquals("There should be no unread messages", 0, mock.messages.size());
assertEquals("There should be one archived", 1, mock.archived.size());
int ledger_time = 434537640;
final String random_seed = "064486ACF5FEE8A9FD1A9026E0D9D763DDFC51FC2220E13E6E392F81B0CA4D25";
// We build a result to send
JSONObject subscribeResult =
JSONBuilder.build()
.fee_base(10)
.fee_ref(10)
.ledger_hash("95B5F9CA0AEAD59CBBA5D14F0F248472255F241DEF3CF881CECA3CA4B01FC178")
.ledger_index(2642686)
.ledger_time(ledger_time)
.load_base(256)
.load_factor(256)
.random(random_seed)
.reserve_base(50000000)
.reserve_inc(12500000)
.server_status("full")
.validated_ledgers("32570-2642686")
.finish();
// A ServerInfo object is where we store all the fields above
ServerInfo info = client.serverInfo;
assertEquals("Right now we don't know", 0, info.fee_base);
assertFalse(info.updated);
final boolean[] successRan = new boolean[] {false};
subscribeRequest.on(
Request.OnSuccess.class,
new Request.OnSuccess() {
public void called(Response response) {
successRan[0] = true; // yee old python 2.x trick
assertEquals(random_seed, response.result.optString("random"));
}
});
// Then we can actually respond to that Request object with a message result
// The `id` is retrieved from the Request object
assertNull(subscribeRequest.response);
mock.respondSuccess(subscribeRequest, subscribeResult);
assertTrue(successRan[0]);
// Once responded the response object will hung off the Request
assertNotNull(subscribeRequest.response);
Response response = subscribeRequest.response;
// You can retrieve the message and also the result
JSONObject rsp = response.message, result = response.result;
// The response id should match up, and result fields match those as passed
// to respondSuccess
assertEquals(subscribeRequest.id, rsp.optInt("id", -1));
assertEquals(random_seed, result.getString("random"));
assertEquals(ledger_time, result.getInt("ledger_time"));
// We should now actually have some fields available on the client
// We should be able to compute a fee
assertEquals(true, info.updated);
assertEquals(10, info.fee_base);
assertEquals(10, info.fee_ref);
assertEquals(256, info.load_base);
assertEquals(256, info.load_factor);
}