/*
* 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.net;
import io.vertx.codegen.annotations.GenIgnore;
import io.vertx.codegen.annotations.Nullable;
import io.vertx.core.AsyncResult;
import io.vertx.core.Handler;
import io.vertx.codegen.annotations.CacheReturn;
import io.vertx.codegen.annotations.Fluent;
import io.vertx.codegen.annotations.VertxGen;
import io.vertx.core.buffer.Buffer;
import io.vertx.core.streams.ReadStream;
import io.vertx.core.streams.WriteStream;
import javax.net.ssl.SSLPeerUnverifiedException;
import javax.security.cert.X509Certificate;
/**
* Represents a socket-like interface to a TCP connection on either the
* client or the server side.
* <p>
* Instances of this class are created on the client side by an {@link NetClient}
* when a connection to a server is made, or on the server side by a {@link NetServer}
* when a server accepts a connection.
* <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
public interface NetSocket extends ReadStream<Buffer>, WriteStream<Buffer> {
@Override
NetSocket exceptionHandler(Handler<Throwable> handler);
@Override
NetSocket handler(Handler<Buffer> handler);
@Override
NetSocket pause();
@Override
NetSocket resume();
@Override
NetSocket endHandler(Handler<Void> endHandler);
@Override
NetSocket write(Buffer data);
@Override
NetSocket setWriteQueueMaxSize(int maxSize);
@Override
NetSocket drainHandler(Handler<Void> handler);
/**
* When a {@code NetSocket} is created it automatically registers an event handler with the event bus, the ID of that
* handler is given by {@code writeHandlerID}.
* <p>
* Given this ID, a different event loop can send a buffer 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 connections which are owned by different event loops.
*
* @return the write handler ID
*/
String writeHandlerID();
/**
* Write a {@link String} to the connection, encoded in UTF-8.
*
* @param str the string to write
* @return a reference to this, so the API can be used fluently
*/
@Fluent
NetSocket write(String str);
/**
* Write a {@link String} to the connection, encoded using the encoding {@code enc}.
*
* @param str the string to write
* @param enc the encoding to use
* @return a reference to this, so the API can be used fluently
*/
@Fluent
NetSocket write(String str, String enc);
/**
* Tell the operating system to stream a file as specified by {@code filename} directly from disk to the outgoing connection,
* bypassing userspace altogether (where supported by the underlying operating system. This is a very efficient way to stream files.
*
* @param filename file name of the file to send
* @return a reference to this, so the API can be used fluently
*/
@Fluent
default NetSocket sendFile(String filename) {
return sendFile(filename, 0, Long.MAX_VALUE);
}
/**
* Tell the operating system to stream a file as specified by {@code filename} directly from disk to the outgoing connection,
* bypassing userspace altogether (where supported by the underlying operating system. This is a very efficient way to stream files.
*
* @param filename file name of the file to send
* @param offset offset
* @return a reference to this, so the API can be used fluently
*/
@Fluent
default NetSocket sendFile(String filename, long offset) {
return sendFile(filename, offset, Long.MAX_VALUE);
}
/**
* Tell the operating system to stream a file as specified by {@code filename} directly from disk to the outgoing connection,
* bypassing userspace altogether (where supported by the underlying operating system. This is a very efficient way to stream files.
*
* @param filename file name of the file to send
* @param offset offset
* @param length length
* @return a reference to this, so the API can be used fluently
*/
@Fluent
NetSocket sendFile(String filename, long offset, long length);
/**
* Same as {@link #sendFile(String)} but also takes a handler that will be called when the send has completed or
* a failure has occurred
*
* @param filename file name of the file to send
* @param resultHandler handler
* @return a reference to this, so the API can be used fluently
*/
@Fluent
default NetSocket sendFile(String filename, Handler<AsyncResult<Void>> resultHandler) {
return sendFile(filename, 0, Long.MAX_VALUE, resultHandler);
}
/**
* Same as {@link #sendFile(String, long)} but also takes a handler that will be called when the send has completed or
* a failure has occurred
*
* @param filename file name of the file to send
* @param offset offset
* @param resultHandler handler
* @return a reference to this, so the API can be used fluently
*/
@Fluent
default NetSocket sendFile(String filename, long offset, Handler<AsyncResult<Void>> resultHandler) {
return sendFile(filename, offset, Long.MAX_VALUE, resultHandler);
}
/**
* Same as {@link #sendFile(String, long, long)} but also takes a handler that will be called when the send has completed or
* a failure has occurred
*
* @param filename file name of the file to send
* @param offset offset
* @param length length
* @param resultHandler handler
* @return a reference to this, so the API can be used fluently
*/
@Fluent
NetSocket sendFile(String filename, long offset, long length, Handler<AsyncResult<Void>> resultHandler);
/**
* @return the remote address for this socket
*/
@CacheReturn
SocketAddress remoteAddress();
/**
* @return the local address for this socket
*/
@CacheReturn
SocketAddress localAddress();
/**
* Calls {@link #close()}
*/
@Override
void end();
/**
* Close the NetSocket
*/
void close();
/**
* Set a handler that will be called when the NetSocket is closed
*
* @param handler the handler
* @return a reference to this, so the API can be used fluently
*/
@Fluent
NetSocket closeHandler(@Nullable Handler<Void> handler);
/**
* Upgrade channel to use SSL/TLS. Be aware that for this to work SSL must be configured.
*
* @param handler the handler will be notified when it's upgraded
* @return a reference to this, so the API can be used fluently
*/
@Fluent
NetSocket upgradeToSsl(Handler<Void> handler);
/**
* Upgrade channel to use SSL/TLS. Be aware that for this to work SSL must be configured.
*
* @param serverName the server name
* @param handler the handler will be notified when it's upgraded
* @return a reference to this, so the API can be used fluently
*/
@Fluent
NetSocket upgradeToSsl(String serverName, Handler<Void> handler);
/**
* @return true if this {@link io.vertx.core.net.NetSocket} 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;
/**
* Returns the SNI server name presented during the SSL handshake by the client.
*
* @return the indicated server name
*/
String indicatedServerName();
}