aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/OpenSim/Framework/Communications/XMPP
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--OpenSim/Framework/Communications/XMPP/XmppError.cs39
-rw-r--r--OpenSim/Framework/Communications/XMPP/XmppIqStanza.cs60
-rw-r--r--OpenSim/Framework/Communications/XMPP/XmppMessageStanza.cs93
-rw-r--r--OpenSim/Framework/Communications/XMPP/XmppPresenceStanza.cs69
-rw-r--r--OpenSim/Framework/Communications/XMPP/XmppSerializer.cs79
-rw-r--r--OpenSim/Framework/Communications/XMPP/XmppStanza.cs70
-rw-r--r--OpenSim/Framework/Communications/XMPP/XmppWriter.cs57
7 files changed, 467 insertions, 0 deletions
diff --git a/OpenSim/Framework/Communications/XMPP/XmppError.cs b/OpenSim/Framework/Communications/XMPP/XmppError.cs
new file mode 100644
index 0000000..3d36e9c
--- /dev/null
+++ b/OpenSim/Framework/Communications/XMPP/XmppError.cs
@@ -0,0 +1,39 @@
1/*
2 * Copyright (c) Contributors, http://opensimulator.org/
3 * See CONTRIBUTORS.TXT for a full list of copyright holders.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the OpenSimulator Project nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28using System.Xml.Serialization;
29
30namespace OpenSim.Framework.Communications.XMPP
31{
32 [XmlRoot("error")]
33 public class XmppErrorStanza
34 {
35 public XmppErrorStanza()
36 {
37 }
38 }
39}
diff --git a/OpenSim/Framework/Communications/XMPP/XmppIqStanza.cs b/OpenSim/Framework/Communications/XMPP/XmppIqStanza.cs
new file mode 100644
index 0000000..12263f4
--- /dev/null
+++ b/OpenSim/Framework/Communications/XMPP/XmppIqStanza.cs
@@ -0,0 +1,60 @@
1/*
2 * Copyright (c) Contributors, http://opensimulator.org/
3 * See CONTRIBUTORS.TXT for a full list of copyright holders.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the OpenSimulator Project nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28using System.Xml.Serialization;
29
30namespace OpenSim.Framework.Communications.XMPP
31{
32 /// <summary>
33 /// An IQ needs to have one of the follow types set.
34 /// </summary>
35 public enum XmppIqType
36 {
37 [XmlEnum("set")] set,
38 [XmlEnum("get")] get,
39 [XmlEnum("result")] result,
40 [XmlEnum("error")] error,
41 }
42
43 /// <summary>
44 /// XmppIqStanza needs to be subclassed as the query content is
45 /// specific to the query type.
46 /// </summary>
47 [XmlRoot("iq")]
48 public abstract class XmppIqStanza: XmppStanza
49 {
50 /// <summary>
51 /// IQ type: one of set, get, result, error
52 /// </summary>
53 [XmlAttribute("type")]
54 public XmppIqType Type;
55
56 public XmppIqStanza(): base()
57 {
58 }
59 }
60}
diff --git a/OpenSim/Framework/Communications/XMPP/XmppMessageStanza.cs b/OpenSim/Framework/Communications/XMPP/XmppMessageStanza.cs
new file mode 100644
index 0000000..1e8c33e
--- /dev/null
+++ b/OpenSim/Framework/Communications/XMPP/XmppMessageStanza.cs
@@ -0,0 +1,93 @@
1/*
2 * Copyright (c) Contributors, http://opensimulator.org/
3 * See CONTRIBUTORS.TXT for a full list of copyright holders.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the OpenSimulator Project nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28using System.Xml.Serialization;
29
30namespace OpenSim.Framework.Communications.XMPP
31{
32 /// <summary>
33 /// Message types.
34 /// </summary>
35 public enum XmppMessageType
36 {
37 [XmlEnum("chat")] chat,
38 [XmlEnum("error")] error,
39 [XmlEnum("groupchat")] groupchat,
40 [XmlEnum("headline")] headline,
41 [XmlEnum("normal")] normal,
42 }
43
44 /// <summary>
45 /// Message body.
46 /// </summary>
47 public class XmppMessageBody
48 {
49 [XmlText]
50 public string Text;
51
52 public XmppMessageBody()
53 {
54 }
55
56 public XmppMessageBody(string message)
57 {
58 Text = message;
59 }
60
61 new public string ToString()
62 {
63 return Text;
64 }
65 }
66
67 [XmlRoot("message")]
68 public class XmppMessageStanza: XmppStanza
69 {
70 /// <summary>
71 /// IQ type: one of set, get, result, error
72 /// </summary>
73 [XmlAttribute("type")]
74 public XmppMessageType MessageType;
75
76 // [XmlAttribute("error")]
77 // public XmppError Error;
78
79 [XmlElement("body")]
80 public XmppMessageBody Body;
81
82 public XmppMessageStanza() : base()
83 {
84 }
85
86 public XmppMessageStanza(string fromJid, string toJid, XmppMessageType mType, string message) :
87 base(fromJid, toJid)
88 {
89 MessageType = mType;
90 Body = new XmppMessageBody(message);
91 }
92 }
93}
diff --git a/OpenSim/Framework/Communications/XMPP/XmppPresenceStanza.cs b/OpenSim/Framework/Communications/XMPP/XmppPresenceStanza.cs
new file mode 100644
index 0000000..4d45ac0
--- /dev/null
+++ b/OpenSim/Framework/Communications/XMPP/XmppPresenceStanza.cs
@@ -0,0 +1,69 @@
1/*
2 * Copyright (c) Contributors, http://opensimulator.org/
3 * See CONTRIBUTORS.TXT for a full list of copyright holders.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the OpenSimulator Project nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28using System.Xml.Serialization;
29
30namespace OpenSim.Framework.Communications.XMPP
31{
32 /// <summary>
33 /// Message types.
34 /// </summary>
35 public enum XmppPresenceType
36 {
37 [XmlEnum("unavailable")] unavailable,
38 [XmlEnum("subscribe")] subscribe,
39 [XmlEnum("subscribed")] subscribed,
40 [XmlEnum("unsubscribe")] unsubscribe,
41 [XmlEnum("unsubscribed")] unsubscribed,
42 [XmlEnum("probe")] probe,
43 [XmlEnum("error")] error,
44 }
45
46
47 [XmlRoot("message")]
48 public class XmppPresenceStanza: XmppStanza
49 {
50 /// <summary>
51 /// IQ type: one of set, get, result, error
52 /// </summary>
53 [XmlAttribute("type")]
54 public XmppPresenceType PresenceType;
55
56 // [XmlAttribute("error")]
57 // public XmppError Error;
58
59 public XmppPresenceStanza() : base()
60 {
61 }
62
63 public XmppPresenceStanza(string fromJid, string toJid, XmppPresenceType pType) :
64 base(fromJid, toJid)
65 {
66 PresenceType = pType;
67 }
68 }
69}
diff --git a/OpenSim/Framework/Communications/XMPP/XmppSerializer.cs b/OpenSim/Framework/Communications/XMPP/XmppSerializer.cs
new file mode 100644
index 0000000..e37ef28
--- /dev/null
+++ b/OpenSim/Framework/Communications/XMPP/XmppSerializer.cs
@@ -0,0 +1,79 @@
1/*
2 * Copyright (c) Contributors, http://opensimulator.org/
3 * See CONTRIBUTORS.TXT for a full list of copyright holders.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the OpenSimulator Project nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28using System;
29using System.Collections.Generic;
30using System.Xml;
31using System.Xml.Serialization;
32
33namespace OpenSim.Framework.Communications.XMPP
34{
35 public class XmppSerializer
36 {
37 // private static readonly ILog _log =
38 // LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
39
40 // need to do it this way, as XmlSerializer(type, extratypes)
41 // does not work on mono (at least).
42 private Dictionary<Type, XmlSerializer> _serializerForType = new Dictionary<Type, XmlSerializer>();
43 private Dictionary<string, XmlSerializer> _serializerForName = new Dictionary<string, XmlSerializer>();
44 private XmlSerializerNamespaces _xmlNs;
45 private string _defaultNS;
46
47 public XmppSerializer(bool server)
48 {
49 _xmlNs = new XmlSerializerNamespaces();
50 _xmlNs.Add(String.Empty, String.Empty);
51 if (server)
52 _defaultNS = "jabber:server";
53 else
54 _defaultNS = "jabber:client";
55
56 // TODO: do this via reflection
57 _serializerForType[typeof(XmppMessageStanza)] = _serializerForName["message"] =
58 new XmlSerializer(typeof(XmppMessageStanza), _defaultNS);
59 }
60
61 public void Serialize(XmlWriter xw, object o)
62 {
63 if (!_serializerForType.ContainsKey(o.GetType()))
64 throw new ArgumentException(String.Format("no serializer available for type {0}", o.GetType()));
65
66 _serializerForType[o.GetType()].Serialize(xw, o, _xmlNs);
67 }
68
69 public object Deserialize(XmlReader xr)
70 {
71 // position on next element
72 xr.Read();
73 if (!_serializerForName.ContainsKey(xr.LocalName))
74 throw new ArgumentException(String.Format("no serializer available for name {0}", xr.LocalName));
75
76 return _serializerForName[xr.LocalName].Deserialize(xr);
77 }
78 }
79}
diff --git a/OpenSim/Framework/Communications/XMPP/XmppStanza.cs b/OpenSim/Framework/Communications/XMPP/XmppStanza.cs
new file mode 100644
index 0000000..5312a31
--- /dev/null
+++ b/OpenSim/Framework/Communications/XMPP/XmppStanza.cs
@@ -0,0 +1,70 @@
1/*
2 * Copyright (c) Contributors, http://opensimulator.org/
3 * See CONTRIBUTORS.TXT for a full list of copyright holders.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the OpenSimulator Project nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28using System;
29using System.Xml.Serialization;
30
31namespace OpenSim.Framework.Communications.XMPP
32{
33 public abstract class XmppStanza
34 {
35 /// <summary>
36 /// counter used for generating ID
37 /// </summary>
38 [XmlIgnore]
39 private static ulong _ctr = 0;
40
41 /// <summary>
42 /// recipient JID
43 /// </summary>
44 [XmlAttribute("to")]
45 public string ToJid;
46
47 /// <summary>
48 /// sender JID
49 /// </summary>
50 [XmlAttribute("from")]
51 public string FromJid;
52
53 /// <summary>
54 /// unique ID.
55 /// </summary>
56 [XmlAttribute("id")]
57 public string MessageId;
58
59 public XmppStanza()
60 {
61 }
62
63 public XmppStanza(string fromJid, string toJid)
64 {
65 ToJid = toJid;
66 FromJid = fromJid;
67 MessageId = String.Format("OpenSim_{0}{1}", DateTime.UtcNow.Ticks, _ctr++);
68 }
69 }
70}
diff --git a/OpenSim/Framework/Communications/XMPP/XmppWriter.cs b/OpenSim/Framework/Communications/XMPP/XmppWriter.cs
new file mode 100644
index 0000000..415d808
--- /dev/null
+++ b/OpenSim/Framework/Communications/XMPP/XmppWriter.cs
@@ -0,0 +1,57 @@
1/*
2 * Copyright (c) Contributors, http://opensimulator.org/
3 * See CONTRIBUTORS.TXT for a full list of copyright holders.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the OpenSimulator Project nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28using System.IO;
29using System.Text;
30using System.Xml;
31using IOStream = System.IO.Stream;
32
33namespace OpenSim.Framework.Communications.XMPP
34{
35 public class XMPPWriter: XmlTextWriter
36 {
37 public XMPPWriter(TextWriter textWriter) : base(textWriter)
38 {
39 }
40
41 public XMPPWriter(IOStream stream) : this(stream, Util.UTF8)
42 {
43 }
44
45 public XMPPWriter(IOStream stream, Encoding enc) : base(stream, enc)
46 {
47 }
48
49 public override void WriteStartDocument()
50 {
51 }
52
53 public override void WriteStartDocument(bool standalone)
54 {
55 }
56 }
57}