1 //
2 // ========================================================================
3 // Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
4 // ------------------------------------------------------------------------
5 // All rights reserved. This program and the accompanying materials
6 // are made available under the terms of the Eclipse Public License v1.0
7 // and Apache License v2.0 which accompanies this distribution.
8 //
9 // The Eclipse Public License is available at
10 // http://www.eclipse.org/legal/epl-v10.html
11 //
12 // The Apache License v2.0 is available at
13 // http://www.opensource.org/licenses/apache2.0.php
14 //
15 // You may elect to redistribute this code under either of these licenses.
16 // ========================================================================
17 //
18
19 package org.eclipse.jetty.websocket.jsr356.messages;
20
21 import java.io.IOException;
22 import java.nio.ByteBuffer;
23
24 import org.eclipse.jetty.util.BufferUtil;
25 import org.eclipse.jetty.websocket.common.message.MessageAppender;
26 import org.eclipse.jetty.websocket.jsr356.endpoints.JsrAnnotatedEventDriver;
27
28 /**
29 * Partial TEXT MessageAppender for @{@link OnMessage} annotated methods
30 */
31 public class TextPartialOnMessage implements MessageAppender
32 {
33 private final JsrAnnotatedEventDriver driver;
34 private boolean finished;
35
36 public TextPartialOnMessage(JsrAnnotatedEventDriver driver)
37 {
38 this.driver = driver;
39 this.finished = false;
40 }
41
42 @Override
43 public void appendFrame(ByteBuffer payload, boolean isLast) throws IOException
44 {
45 if (finished)
46 {
47 throw new IOException("Cannot append to finished buffer");
48 }
49 if (payload == null)
50 {
51 driver.onPartialTextMessage("",isLast);
52 }
53 else
54 {
55 String text = BufferUtil.toUTF8String(payload);
56 driver.onPartialTextMessage(text,isLast);
57 }
58 }
59
60 @Override
61 public void messageComplete()
62 {
63 finished = true;
64 }
65 }