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<p>Smack is a library for client-to-server XMPP connections to perform real-time communications and data exchange. This includes, but is not limited to, instant messaging and group chat. More genericly speaking, it allows you to easily exchange data in various ways: For example fire-and-forget, publish-subscribe, between human and non-human endpoints. The use cases include M2M, IoT, and many more.</p>
<p>Smack is a pure Java library, open-source and highly modular. It runs on Android and Java SE. The API strives to be easy to use but yet powerful.</p>
<h2>Key Advantages</h2>
Smack is extremely simple to use. Sending a text message to a user can be accomplished in only a few lines of code.
AbstractXMPPConnection connection = new XMPPTCPConnection("mtucker", "password", "");
Message message = connection.getStanzaFactory()
.setBody("Howdy! How are you?")
<p>Smack doesn't force you to code at the protcol level of XMPP. The library provides intelligent higher level constructs, often called {@link org.jivesoftware.smack.Manager}, which let you program more efficiently. Other examples of those constructs are the Chat and Roster classes.</p>
<p>Smack comes with APIs for easy machine-to-machine communication. You can set any number of properties on each message, including properties that are Java objects.</p>
<p>Smack is open-source and most parts are under the Apache License
2.0, which means you can incorporate Smack into your commercial or
non-commercial applications. Some parts of Smack may be under a
different open-source license. Please refer to the individual
subprojects for their license statement.</p>
<p>Note that the Apache License 2.0 requires that the contents of a
NOICE text file are shown "…within a display generated by the
Derivative Works, if and wherever such third-party notices normally
appear.". Smack comes with such a NOTICE file. The content of
Smack's NOTICE file can conveniently be retrieved using
{@link org.jivesoftware.smack.Smack#getNoticeStream}.</p>
<h2>About XMPP</h2>
<p>XMPP (eXtensible Messaging and Presence Protocol) is an open protocol standardized by the <a href="">Internet Engineering Task Force (IETF)</a> and supported and extended by the <a href="">XMPP Standards Foundation (XSF)</a>.</p>