/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 websocket.echo;
import java.io.IOException;
import java.nio.ByteBuffer;
import jakarta.websocket.Endpoint;
import jakarta.websocket.EndpointConfig;
import jakarta.websocket.MessageHandler;
import jakarta.websocket.RemoteEndpoint;
import jakarta.websocket.Session;
public class EchoEndpoint extends Endpoint {
@Override
public void onOpen(Session session, EndpointConfig endpointConfig) {
RemoteEndpoint.Basic remoteEndpointBasic = session.getBasicRemote();
session.addMessageHandler(new EchoMessageHandlerText(remoteEndpointBasic, session));
session.addMessageHandler(new EchoMessageHandlerBinary(remoteEndpointBasic, session));
}
private static class EchoMessageHandlerText
implements MessageHandler.Partial<String> {
private final RemoteEndpoint.Basic remoteEndpointBasic;
private final Session session;
private EchoMessageHandlerText(RemoteEndpoint.Basic remoteEndpointBasic, Session session) {
this.remoteEndpointBasic = remoteEndpointBasic;
this.session = session;
}
@Override
public void onMessage(String message, boolean last) {
try {
if (remoteEndpointBasic != null) {
remoteEndpointBasic.sendText(message, last);
}
} catch (IOException ioe) {
try {
session.close();
} catch (IOException ignore) {
// Ignore
}
}
}
}
private static class EchoMessageHandlerBinary
implements MessageHandler.Partial<ByteBuffer> {
private final RemoteEndpoint.Basic remoteEndpointBasic;
private final Session session;
private EchoMessageHandlerBinary(RemoteEndpoint.Basic remoteEndpointBasic, Session session) {
this.remoteEndpointBasic = remoteEndpointBasic;
this.session = session;
}
@Override
public void onMessage(ByteBuffer message, boolean last) {
try {
if (remoteEndpointBasic != null) {
remoteEndpointBasic.sendBinary(message, last);
}
} catch (IOException ioe) {
try {
session.close();
} catch (IOException ignore) {
// Ignore
}
}
}
}
}