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The Async Http Client (AHC) classes.
/*
* Copyright (c) 2017-2023 AsyncHttpClient Project. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.asynchttpclient.ws;
import io.netty.buffer.ByteBuf;
import io.netty.handler.codec.http.HttpHeaders;
import io.netty.util.concurrent.Future;
import java.net.SocketAddress;
/**
* A WebSocket client
*/
public interface WebSocket {
/**
* @return the headers received in the Upgrade response
*/
HttpHeaders getUpgradeHeaders();
/**
* Get remote address client initiated request to.
*
* @return remote address client initiated request to, may be {@code null} if asynchronous provider is unable to provide the remote address
*/
SocketAddress getRemoteAddress();
/**
* Get local address client initiated request from.
*
* @return local address client initiated request from, may be {@code null} if asynchronous provider is unable to provide the local address
*/
SocketAddress getLocalAddress();
/**
* Send a full text frame
*
* @param payload a text payload
* @return a future that will be completed once the frame will be actually written on the wire
*/
Future sendTextFrame(String payload);
/**
* Allows sending a text frame with fragmentation or extension bits. When using fragmentation, the next fragments must be sent with sendContinuationFrame.
*
* @param payload a text fragment.
* @param finalFragment flag indicating whether this is the final fragment
* @param rsv extension bits, 0 otherwise
* @return a future that will be completed once the frame will be actually written on the wire
*/
Future sendTextFrame(String payload, boolean finalFragment, int rsv);
/**
* Allows sending a text frame with fragmentation or extension bits. When using fragmentation, the next fragments must be sent with sendContinuationFrame.
*
* @param payload a ByteBuf fragment.
* @param finalFragment flag indicating whether this is the final fragment
* @param rsv extension bits, 0 otherwise
* @return a future that will be completed once the frame will be actually written on the wire
*/
Future sendTextFrame(ByteBuf payload, boolean finalFragment, int rsv);
/**
* Send a full binary frame.
*
* @param payload a binary payload
* @return a future that will be completed once the frame will be actually written on the wire
*/
Future sendBinaryFrame(byte[] payload);
/**
* Allows sending a binary frame with fragmentation or extension bits. When using fragmentation, the next fragments must be sent with sendContinuationFrame.
*
* @param payload a binary payload
* @param finalFragment flag indicating whether this is the last fragment
* @param rsv extension bits, 0 otherwise
* @return a future that will be completed once the frame will be actually written on the wire
*/
Future sendBinaryFrame(byte[] payload, boolean finalFragment, int rsv);
/**
* Allows sending a binary frame with fragmentation or extension bits. When using fragmentation, the next fragments must be sent with sendContinuationFrame.
*
* @param payload a ByteBuf payload
* @param finalFragment flag indicating whether this is the last fragment
* @param rsv extension bits, 0 otherwise
* @return a future that will be completed once the frame will be actually written on the wire
*/
Future sendBinaryFrame(ByteBuf payload, boolean finalFragment, int rsv);
/**
* Send a text continuation frame. The last fragment must have finalFragment set to true.
*
* @param payload the text fragment
* @param finalFragment flag indicating whether this is the last fragment
* @param rsv extension bits, 0 otherwise
* @return a future that will be completed once the frame will be actually written on the wire
*/
Future sendContinuationFrame(String payload, boolean finalFragment, int rsv);
/**
* Send a binary continuation frame. The last fragment must have finalFragment set to true.
*
* @param payload the binary fragment
* @param finalFragment flag indicating whether this is the last fragment
* @param rsv extension bits, 0 otherwise
* @return a future that will be completed once the frame will be actually written on the wire
*/
Future sendContinuationFrame(byte[] payload, boolean finalFragment, int rsv);
/**
* Send a continuation frame (those are actually untyped as counterpart must have memorized first fragmented frame type). The last fragment must have finalFragment set to true.
*
* @param payload a ByteBuf fragment
* @param finalFragment flag indicating whether this is the last fragment
* @param rsv extension bits, 0 otherwise
* @return a future that will be completed once the frame will be actually written on the wire
*/
Future sendContinuationFrame(ByteBuf payload, boolean finalFragment, int rsv);
/**
* Send an empty ping frame
*
* @return a future that will be completed once the frame will be actually written on the wire
*/
Future sendPingFrame();
/**
* Send a ping frame with a byte array payload (limited to 125 bytes or fewer).
*
* @param payload the payload.
* @return a future that will be completed once the frame will be actually written on the wire
*/
Future sendPingFrame(byte[] payload);
/**
* Send a ping frame with a ByteBuf payload (limited to 125 bytes or fewer).
*
* @param payload the payload.
* @return a future that will be completed once the frame will be actually written on the wire
*/
Future sendPingFrame(ByteBuf payload);
/**
* Send an empty pong frame
*
* @return a future that will be completed once the frame will be actually written on the wire
*/
Future sendPongFrame();
/**
* Send a pong frame with a byte array payload (limited to 125 bytes or fewer).
*
* @param payload the payload.
* @return a future that will be completed once the frame will be actually written on the wire
*/
Future sendPongFrame(byte[] payload);
/**
* Send a pong frame with a ByteBuf payload (limited to 125 bytes or fewer).
*
* @param payload the payload.
* @return a future that will be completed once the frame will be actually written on the wire
*/
Future sendPongFrame(ByteBuf payload);
/**
* Send an empty close frame.
*
* @return a future that will be completed once the frame will be actually written on the wire
*/
Future sendCloseFrame();
/**
* Send an empty close frame.
*
* @param statusCode a status code
* @param reasonText a reason
* @return a future that will be completed once the frame will be actually written on the wire
*/
Future sendCloseFrame(int statusCode, String reasonText);
/**
* @return {@code true} if the WebSocket is open/connected.
*/
boolean isOpen();
/**
* Add a {@link WebSocketListener}
*
* @param l a {@link WebSocketListener}
* @return this
*/
WebSocket addWebSocketListener(WebSocketListener l);
/**
* Remove a {@link WebSocketListener}
*
* @param l a {@link WebSocketListener}
* @return this
*/
WebSocket removeWebSocketListener(WebSocketListener l);
}
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