260 lines
9.4 KiB
Java
260 lines
9.4 KiB
Java
//
|
|
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2020
|
|
//
|
|
// Distributed under the Boost Software License, Version 1.0. (See accompanying
|
|
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
//
|
|
package org.drinkless.tdlib;
|
|
|
|
import java.util.concurrent.ConcurrentHashMap;
|
|
import java.util.concurrent.atomic.AtomicLong;
|
|
import java.util.concurrent.locks.Lock;
|
|
import java.util.concurrent.locks.ReadWriteLock;
|
|
import java.util.concurrent.locks.ReentrantReadWriteLock;
|
|
|
|
/**
|
|
* Main class for interaction with the TDLib.
|
|
*/
|
|
public final class Client implements Runnable {
|
|
/**
|
|
* Interface for handler for results of queries to TDLib and incoming updates from TDLib.
|
|
*/
|
|
public interface ResultHandler {
|
|
/**
|
|
* Callback called on result of query to TDLib or incoming update from TDLib.
|
|
*
|
|
* @param object Result of query or update of type TdApi.Update about new events.
|
|
*/
|
|
void onResult(TdApi.Object object);
|
|
}
|
|
|
|
/**
|
|
* Interface for handler of exceptions thrown while invoking ResultHandler.
|
|
* By default, all such exceptions are ignored.
|
|
* All exceptions thrown from ExceptionHandler are ignored.
|
|
*/
|
|
public interface ExceptionHandler {
|
|
/**
|
|
* Callback called on exceptions thrown while invoking ResultHandler.
|
|
*
|
|
* @param e Exception thrown by ResultHandler.
|
|
*/
|
|
void onException(Throwable e);
|
|
}
|
|
|
|
/**
|
|
* Sends a request to the TDLib.
|
|
*
|
|
* @param query Object representing a query to the TDLib.
|
|
* @param resultHandler Result handler with onResult method which will be called with result
|
|
* of the query or with TdApi.Error as parameter. If it is null, nothing
|
|
* will be called.
|
|
* @param exceptionHandler Exception handler with onException method which will be called on
|
|
* exception thrown from resultHandler. If it is null, then
|
|
* defaultExceptionHandler will be called.
|
|
* @throws NullPointerException if query is null.
|
|
*/
|
|
public void send(TdApi.Function query, ResultHandler resultHandler, ExceptionHandler exceptionHandler) {
|
|
if (query == null) {
|
|
throw new NullPointerException("query is null");
|
|
}
|
|
|
|
readLock.lock();
|
|
try {
|
|
if (isClientDestroyed) {
|
|
if (resultHandler != null) {
|
|
handleResult(new TdApi.Error(500, "Client is closed"), resultHandler, exceptionHandler);
|
|
}
|
|
return;
|
|
}
|
|
|
|
long queryId = currentQueryId.incrementAndGet();
|
|
handlers.put(queryId, new Handler(resultHandler, exceptionHandler));
|
|
nativeClientSend(nativeClientId, queryId, query);
|
|
} finally {
|
|
readLock.unlock();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Sends a request to the TDLib with an empty ExceptionHandler.
|
|
*
|
|
* @param query Object representing a query to the TDLib.
|
|
* @param resultHandler Result handler with onResult method which will be called with result
|
|
* of the query or with TdApi.Error as parameter. If it is null, then
|
|
* defaultExceptionHandler will be called.
|
|
* @throws NullPointerException if query is null.
|
|
*/
|
|
public void send(TdApi.Function query, ResultHandler resultHandler) {
|
|
send(query, resultHandler, null);
|
|
}
|
|
|
|
/**
|
|
* Synchronously executes a TDLib request. Only a few marked accordingly requests can be executed synchronously.
|
|
*
|
|
* @param query Object representing a query to the TDLib.
|
|
* @return request result.
|
|
* @throws NullPointerException if query is null.
|
|
*/
|
|
public static TdApi.Object execute(TdApi.Function query) {
|
|
if (query == null) {
|
|
throw new NullPointerException("query is null");
|
|
}
|
|
return nativeClientExecute(query);
|
|
}
|
|
|
|
/**
|
|
* Overridden method from Runnable, do not call it directly.
|
|
*/
|
|
@Override
|
|
public void run() {
|
|
while (!stopFlag) {
|
|
receiveQueries(300.0 /*seconds*/);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Creates new Client.
|
|
*
|
|
* @param updateHandler Handler for incoming updates.
|
|
* @param updateExceptionHandler Handler for exceptions thrown from updateHandler. If it is null, exceptions will be iggnored.
|
|
* @param defaultExceptionHandler Default handler for exceptions thrown from all ResultHandler. If it is null, exceptions will be iggnored.
|
|
* @return created Client
|
|
*/
|
|
public static Client create(ResultHandler updateHandler, ExceptionHandler updateExceptionHandler, ExceptionHandler defaultExceptionHandler) {
|
|
Client client = new Client(updateHandler, updateExceptionHandler, defaultExceptionHandler);
|
|
new Thread(client, "TDLib thread").start();
|
|
return client;
|
|
}
|
|
|
|
/**
|
|
* Closes Client.
|
|
*/
|
|
public void close() {
|
|
writeLock.lock();
|
|
try {
|
|
if (isClientDestroyed) {
|
|
return;
|
|
}
|
|
if (!stopFlag) {
|
|
send(new TdApi.Close(), null);
|
|
}
|
|
isClientDestroyed = true;
|
|
while (!stopFlag) {
|
|
Thread.yield();
|
|
}
|
|
while (!handlers.isEmpty()) {
|
|
receiveQueries(300.0);
|
|
}
|
|
updateHandlers.remove(nativeClientId);
|
|
defaultExceptionHandlers.remove(nativeClientId);
|
|
destroyNativeClient(nativeClientId);
|
|
} finally {
|
|
writeLock.unlock();
|
|
}
|
|
}
|
|
|
|
private final ReadWriteLock readWriteLock = new ReentrantReadWriteLock();
|
|
private final Lock readLock = readWriteLock.readLock();
|
|
private final Lock writeLock = readWriteLock.writeLock();
|
|
|
|
private volatile boolean stopFlag = false;
|
|
private volatile boolean isClientDestroyed = false;
|
|
private final long nativeClientId;
|
|
|
|
private static final ConcurrentHashMap<Long, ExceptionHandler> defaultExceptionHandlers = new ConcurrentHashMap<Long, ExceptionHandler>();
|
|
private static final ConcurrentHashMap<Long, Handler> updateHandlers = new ConcurrentHashMap<Long, Handler>();
|
|
|
|
private final ConcurrentHashMap<Long, Handler> handlers = new ConcurrentHashMap<Long, Handler>();
|
|
private final AtomicLong currentQueryId = new AtomicLong();
|
|
|
|
private static final int MAX_EVENTS = 1000;
|
|
private final long[] eventIds = new long[MAX_EVENTS];
|
|
private final TdApi.Object[] events = new TdApi.Object[MAX_EVENTS];
|
|
|
|
private static class Handler {
|
|
final ResultHandler resultHandler;
|
|
final ExceptionHandler exceptionHandler;
|
|
|
|
Handler(ResultHandler resultHandler, ExceptionHandler exceptionHandler) {
|
|
this.resultHandler = resultHandler;
|
|
this.exceptionHandler = exceptionHandler;
|
|
}
|
|
}
|
|
|
|
private Client(ResultHandler updateHandler, ExceptionHandler updateExceptionHandler, ExceptionHandler defaultExceptionHandler) {
|
|
nativeClientId = createNativeClient();
|
|
updateHandlers.put(nativeClientId, new Handler(updateHandler, updateExceptionHandler));
|
|
if (defaultExceptionHandler != null) {
|
|
defaultExceptionHandlers.put(nativeClientId, defaultExceptionHandler);
|
|
}
|
|
}
|
|
|
|
@Override
|
|
protected void finalize() throws Throwable {
|
|
try {
|
|
close();
|
|
} finally {
|
|
super.finalize();
|
|
}
|
|
}
|
|
|
|
private void processResult(long id, TdApi.Object object) {
|
|
if (object instanceof TdApi.UpdateAuthorizationState) {
|
|
if (((TdApi.UpdateAuthorizationState) object).authorizationState instanceof TdApi.AuthorizationStateClosed) {
|
|
stopFlag = true;
|
|
}
|
|
}
|
|
Handler handler;
|
|
if (id == 0) {
|
|
// update handler stays forever
|
|
handler = updateHandlers.get(nativeClientId);
|
|
} else {
|
|
handler = handlers.remove(id);
|
|
}
|
|
if (handler == null) {
|
|
return;
|
|
}
|
|
|
|
handleResult(object, handler.resultHandler, handler.exceptionHandler);
|
|
}
|
|
|
|
private void handleResult(TdApi.Object object, ResultHandler resultHandler, ExceptionHandler exceptionHandler) {
|
|
if (resultHandler == null) {
|
|
return;
|
|
}
|
|
|
|
try {
|
|
resultHandler.onResult(object);
|
|
} catch (Throwable cause) {
|
|
if (exceptionHandler == null) {
|
|
exceptionHandler = defaultExceptionHandlers.get(nativeClientId);
|
|
}
|
|
if (exceptionHandler != null) {
|
|
try {
|
|
exceptionHandler.onException(cause);
|
|
} catch (Throwable ignored) {
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
private void receiveQueries(double timeout) {
|
|
int resultN = nativeClientReceive(nativeClientId, eventIds, events, timeout);
|
|
for (int i = 0; i < resultN; i++) {
|
|
processResult(eventIds[i], events[i]);
|
|
events[i] = null;
|
|
}
|
|
}
|
|
|
|
private static native long createNativeClient();
|
|
|
|
private static native void nativeClientSend(long nativeClientId, long eventId, TdApi.Function function);
|
|
|
|
private static native int nativeClientReceive(long nativeClientId, long[] eventIds, TdApi.Object[] events, double timeout);
|
|
|
|
private static native TdApi.Object nativeClientExecute(TdApi.Function function);
|
|
|
|
private static native void destroyNativeClient(long nativeClientId);
|
|
}
|