| // |
| // ======================================================================== |
| // Copyright (c) 1995-2015 Mort Bay Consulting Pty. Ltd. |
| // ------------------------------------------------------------------------ |
| // 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 org.eclipse.jetty.websocket.server.examples.echo; |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| |
| import org.eclipse.jetty.util.BufferUtil; |
| import org.eclipse.jetty.websocket.api.RemoteEndpoint; |
| import org.eclipse.jetty.websocket.api.Session; |
| import org.eclipse.jetty.websocket.api.annotations.OnWebSocketFrame; |
| import org.eclipse.jetty.websocket.api.annotations.WebSocket; |
| import org.eclipse.jetty.websocket.api.extensions.Frame; |
| |
| /** |
| * Echo back the incoming text or binary as 2 frames of (roughly) equal size. |
| */ |
| @WebSocket |
| public class EchoFragmentSocket |
| { |
| @OnWebSocketFrame |
| public void onFrame(Session session, Frame frame) |
| { |
| if (!frame.getType().isData()) |
| { |
| // Don't process non-data frames |
| return; |
| } |
| |
| ByteBuffer data = frame.getPayload(); |
| |
| int half = data.remaining() / 2; |
| |
| ByteBuffer buf1 = data.slice(); |
| ByteBuffer buf2 = data.slice(); |
| |
| buf1.limit(half); |
| buf2.position(half); |
| |
| RemoteEndpoint remote = session.getRemote(); |
| try |
| { |
| switch (frame.getType()) |
| { |
| case BINARY: |
| remote.sendBytes(buf1,null); |
| remote.sendBytes(buf2,null); |
| break; |
| case TEXT: |
| // NOTE: This impl is not smart enough to split on a UTF8 boundary |
| remote.sendString(BufferUtil.toUTF8String(buf1),null); |
| remote.sendString(BufferUtil.toUTF8String(buf2),null); |
| break; |
| default: |
| throw new IOException("Unexpected frame type: " + frame.getType()); |
| } |
| } |
| catch (IOException e) |
| { |
| e.printStackTrace(System.err); |
| } |
| } |
| } |