/*
* Copyright (c) 2011-2013 The original author or authors
* ------------------------------------------------------
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Apache License v2.0 which accompanies this distribution.
*
* The Eclipse Public License is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* The Apache License v2.0 is available at
* http://www.opensource.org/licenses/apache2.0.php
*
* You may elect to redistribute this code under either of these licenses.
*/
package io.vertx.core.http;
import io.vertx.codegen.annotations.CacheReturn;
import io.vertx.codegen.annotations.Fluent;
import io.vertx.codegen.annotations.GenIgnore;
import io.vertx.codegen.annotations.Nullable;
import io.vertx.codegen.annotations.VertxGen;
import io.vertx.core.Handler;
import io.vertx.core.buffer.Buffer;
import io.vertx.core.net.SocketAddress;
import io.vertx.core.streams.ReadStream;
import io.vertx.core.streams.WriteStream;
import javax.net.ssl.SSLPeerUnverifiedException;
import javax.security.cert.X509Certificate;
/**
* Base WebSocket implementation.
* <p>
* It implements both {@link ReadStream} and {@link WriteStream} so it can be used with
* {@link io.vertx.core.streams.Pump} to pump data with flow control.
*
* @author <a href="http://tfox.org">Tim Fox</a>
*/
@VertxGen(concrete = false)
public interface WebSocketBase extends ReadStream<Buffer>, WriteStream<Buffer> {
@Override
WebSocketBase exceptionHandler(Handler<Throwable> handler);
@Override
WebSocketBase handler(Handler<Buffer> handler);
@Override
WebSocketBase pause();
@Override
WebSocketBase resume();
@Override
WebSocketBase endHandler(Handler<Void> endHandler);
@Override
WebSocketBase write(Buffer data);
@Override
WebSocketBase setWriteQueueMaxSize(int maxSize);
@Override
WebSocketBase drainHandler(Handler<Void> handler);
/**
* When a {@code Websocket} is created it automatically registers an event handler with the event bus - the ID of that
* handler is given by this method.
* <p>
* Given this ID, a different event loop can send a binary frame to that event handler using the event bus and
* that buffer will be received by this instance in its own event loop and written to the underlying connection. This
* allows you to write data to other WebSockets which are owned by different event loops.
*
* @return the binary handler id
*/
String binaryHandlerID();
/**
* When a {@code Websocket} is created it automatically registers an event handler with the eventbus, the ID of that
* handler is given by {@code textHandlerID}.
* <p>
* Given this ID, a different event loop can send a text frame to that event handler using the event bus and
* that buffer will be received by this instance in its own event loop and written to the underlying connection. This
* allows you to write data to other WebSockets which are owned by different event loops.
*/
String textHandlerID();
/**
* Write a WebSocket frame to the connection
*
* @param frame the frame to write
* @return a reference to this, so the API can be used fluently
*/
@Fluent
WebSocketBase writeFrame(WebSocketFrame frame);
/**
* Write a final WebSocket text frame to the connection
*
* @param text The text to write
* @return a reference to this, so the API can be used fluently
*/
@Fluent
WebSocketBase writeFinalTextFrame(String text);
/**
* Write a final WebSocket binary frame to the connection
*
* @param data The data to write
* @return a reference to this, so the API can be used fluently
*/
@Fluent
WebSocketBase writeFinalBinaryFrame(Buffer data);
/**
* Writes a (potentially large) piece of binary data to the connection. This data might be written as multiple frames
* if it exceeds the maximum WebSocket frame size.
*
* @param data the data to write
* @return a reference to this, so the API can be used fluently
*/
@Fluent
WebSocketBase writeBinaryMessage(Buffer data);
/**
* Writes a (potentially large) piece of text data to the connection. This data might be written as multiple frames
* if it exceeds the maximum WebSocket frame size.
*
* @param text the data to write
* @return a reference to this, so the API can be used fluently
*/
@Fluent
WebSocketBase writeTextMessage(String text);
/**
* Set a close handler. This will be called when the WebSocket is closed.
*
* @param handler the handler
* @return a reference to this, so the API can be used fluently
*/
@Fluent
WebSocketBase closeHandler(@Nullable Handler<Void> handler);
/**
* Set a frame handler on the connection. This handler will be called when frames are read on the connection.
*
* @param handler the handler
* @return a reference to this, so the API can be used fluently
*/
@Fluent
WebSocketBase frameHandler(@Nullable Handler<WebSocketFrame> handler);
/**
* Set a text message handler on the connection. This handler will be called similar to the
* {@link #binaryMessageHandler(Handler)}, but the buffer will be converted to a String first
*
* @param handler the handler
* @return a reference to this, so the API can be used fluently
*/
@Fluent
WebSocketBase textMessageHandler(@Nullable Handler<String> handler);
/**
* Set a binary message handler on the connection. This handler serves a similar purpose to {@link #handler(Handler)}
* except that if a message comes into the socket in multiple frames, the data from the frames will be aggregated
* into a single buffer before calling the handler (using {@link WebSocketFrame#isFinal()} to find the boundaries).
*
* @param handler the handler
* @return a reference to this, so the API can be used fluently
*/
@Fluent
WebSocketBase binaryMessageHandler(@Nullable Handler<Buffer> handler);
/**
* Calls {@link #close()}
*/
@Override
void end();
/**
* Close the WebSocket.
*/
void close();
/**
* @return the remote address for this socket
*/
@CacheReturn
SocketAddress remoteAddress();
/**
* @return the local address for this socket
*/
@CacheReturn
SocketAddress localAddress();
/**
* @return true if this {@link io.vertx.core.http.HttpConnection} is encrypted via SSL/TLS.
*/
boolean isSsl();
/**
* @return an array of the peer certificates. Returns null if connection is
* not SSL.
* @throws javax.net.ssl.SSLPeerUnverifiedException SSL peer's identity has not been verified.
*/
@GenIgnore
X509Certificate[] peerCertificateChain() throws SSLPeerUnverifiedException;
}