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WebSocketChat.java
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WebSocketChat.java
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/*
* Copyright 2008-2022 Async-IO.org
*
* 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.atmosphere.samples.chat;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.atmosphere.config.service.WebSocketHandlerService;
import org.atmosphere.cpr.AtmosphereResourceEvent;
import org.atmosphere.util.SimpleBroadcaster;
import org.atmosphere.websocket.WebSocket;
import org.atmosphere.websocket.WebSocketEventListenerAdapter;
import org.atmosphere.websocket.WebSocketHandler;
import org.atmosphere.websocket.WebSocketStreamingHandlerAdapter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.Reader;
import java.util.Date;
/**
* Simple {@link WebSocketHandler} that implement the logic to build a Chat application.
*
* @author Jeanfrancois Arcand
*/
@WebSocketHandlerService(path = "/chat", broadcaster = SimpleBroadcaster.class,
atmosphereConfig = {"org.atmosphere.websocket.WebSocketProtocol=org.atmosphere.websocket.protocol.StreamingHttpProtocol"})
public class WebSocketChat extends WebSocketStreamingHandlerAdapter {
private final Logger logger = LoggerFactory.getLogger(WebSocketChat.class);
private final ObjectMapper mapper = new ObjectMapper();
@Override
public void onOpen(WebSocket webSocket) throws IOException {
webSocket.resource().addEventListener(new WebSocketEventListenerAdapter() {
@Override
public void onDisconnect(AtmosphereResourceEvent event) {
if (event.isCancelled()) {
logger.info("Browser {} unexpectedly disconnected", event.getResource().uuid());
} else if (event.isClosedByClient()) {
logger.info("Browser {} closed the connection", event.getResource().uuid());
}
}
});
}
public void onTextStream(WebSocket webSocket, Reader reader) throws IOException {
webSocket.broadcast(mapper.writeValueAsString(mapper.readValue(new BufferedReader(reader).readLine(), Data.class)));
}
public final static class Data {
private String message;
private String author;
private long time;
public Data() {
this("", "");
}
public Data(String author, String message) {
this.author = author;
this.message = message;
this.time = new Date().getTime();
}
public String getMessage() {
return message;
}
public String getAuthor() {
return author;
}
public void setAuthor(String author) {
this.author = author;
}
public void setMessage(String message) {
this.message = message;
}
public long getTime() {
return time;
}
public void setTime(long time) {
this.time = time;
}
}
}