1 package com.ericsson.research.transport.ws.spi;
2
3 /*
4 * ##_BEGIN_LICENSE_##
5 * Transport Abstraction Package (trap)
6 * ----------
7 * Copyright (C) 2014 Ericsson AB
8 * ----------
9 * Redistribution and use in source and binary forms, with or without modification,
10 * are permitted provided that the following conditions are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright notice, this
13 * list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright notice,
16 * this list of conditions and the following disclaimer in the documentation
17 * and/or other materials provided with the distribution.
18 *
19 * 3. Neither the name of the Ericsson AB nor the names of its contributors
20 * may be used to endorse or promote products derived from this software without
21 * specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
25 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26 * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
28 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
30 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
31 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
32 * OF THE POSSIBILITY OF SUCH DAMAGE.
33 * ##_END_LICENSE_##
34 */
35
36 import java.io.IOException;
37 import java.io.OutputStream;
38
39 import com.ericsson.research.transport.ws.WSException;
40
41
42 public abstract class WSAbstractFrame implements WSConstants {
43
44 public static final byte CONTINUATION_FRAME = 0;
45 public static final byte TEXT_FRAME = 1;
46 public static final byte BINARY_FRAME = 2;
47 public static final byte CLOSE_FRAME = 8;
48 public static final byte PING_FRAME = 9;
49 public static final byte PONG_FRAME = 10;
50
51 protected byte type;
52 protected byte[] payload;
53
54 protected int pos = 0;
55 protected int len = -1;
56 protected byte l1 = 0;
57
58 WSAbstractFrame() {}
59
60 WSAbstractFrame(byte type) {
61 this.type = (byte)(type & 0x0F);
62 }
63
64 public byte getType() {
65 return type;
66 }
67
68 public byte[] getPayload() {
69 return payload;
70 }
71
72 public void serialize(OutputStream os) throws IOException {
73 synchronized(os) {
74 os.write(payload);
75 os.flush();
76 }
77 }
78
79 public abstract int deserialize(byte[] data, int length) throws WSException;
80
81 }