spring AbstractWebSocketHandler 源码
spring AbstractWebSocketHandler 代码
文件路径：/spring-websocket/src/main/java/org/springframework/web/socket/handler/AbstractWebSocketHandler.java
/*
* Copyright 2002-2013 the original author or authors.
*
* 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
*
* https://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.springframework.web.socket.handler;
import org.springframework.web.socket.BinaryMessage;
import org.springframework.web.socket.CloseStatus;
import org.springframework.web.socket.PongMessage;
import org.springframework.web.socket.TextMessage;
import org.springframework.web.socket.WebSocketHandler;
import org.springframework.web.socket.WebSocketMessage;
import org.springframework.web.socket.WebSocketSession;
/**
* A convenient base class for {@link WebSocketHandler} implementation with empty methods.
*
* @author Rossen Stoyanchev
* @author Phillip Webb
* @since 4.0
*/
public abstract class AbstractWebSocketHandler implements WebSocketHandler {
@Override
public void afterConnectionEstablished(WebSocketSession session) throws Exception {
}
@Override
public void handleMessage(WebSocketSession session, WebSocketMessage<?> message) throws Exception {
if (message instanceof TextMessage) {
handleTextMessage(session, (TextMessage) message);
}
else if (message instanceof BinaryMessage) {
handleBinaryMessage(session, (BinaryMessage) message);
}
else if (message instanceof PongMessage) {
handlePongMessage(session, (PongMessage) message);
}
else {
throw new IllegalStateException("Unexpected WebSocket message type: " + message);
}
}
protected void handleTextMessage(WebSocketSession session, TextMessage message) throws Exception {
}
protected void handleBinaryMessage(WebSocketSession session, BinaryMessage message) throws Exception {
}
protected void handlePongMessage(WebSocketSession session, PongMessage message) throws Exception {
}
@Override
public void handleTransportError(WebSocketSession session, Throwable exception) throws Exception {
}
@Override
public void afterConnectionClosed(WebSocketSession session, CloseStatus status) throws Exception {
}
@Override
public boolean supportsPartialMessages() {
return false;
}
}
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