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<h1 class="nopad">Table of Contents</h1>
<div style="margin-left: 1em;" class="toc-section">
<a href="#toc0">Overview</a>
<div style="margin-left: 1em;" class="toc-entry">
<a href="#clojure.contrib.jmx/*connection*">*connection*</a>
</div><div style="margin-left: 1em;" class="toc-entry">
<a href="#clojure.contrib.jmx/as-object-name">as-object-name</a>
</div><div style="margin-left: 1em;" class="toc-entry">
<a href="#clojure.contrib.jmx/attribute-info">attribute-info</a>
</div><div style="margin-left: 1em;" class="toc-entry">
<a href="#clojure.contrib.jmx/attribute-names">attribute-names</a>
</div><div style="margin-left: 1em;" class="toc-entry">
<a href="#clojure.contrib.jmx/build-attribute-info">build-attribute-info</a>
</div><div style="margin-left: 1em;" class="toc-entry">
<a href="#clojure.contrib.jmx/guess-attribute-typename">guess-attribute-typename</a>
</div><div style="margin-left: 1em;" class="toc-entry">
<a href="#clojure.contrib.jmx/jmx->clj">jmx->clj</a>
</div><div style="margin-left: 1em;" class="toc-entry">
<a href="#clojure.contrib.jmx/jmx-url">jmx-url</a>
</div><div style="margin-left: 1em;" class="toc-entry">
<a href="#clojure.contrib.jmx/map->attribute-infos">map->attribute-infos</a>
</div><div style="margin-left: 1em;" class="toc-entry">
<a href="#clojure.contrib.jmx/maybe-atomize">maybe-atomize</a>
</div><div style="margin-left: 1em;" class="toc-entry">
<a href="#clojure.contrib.jmx/maybe-keywordize">maybe-keywordize</a>
</div><div style="margin-left: 1em;" class="toc-entry">
<a href="#clojure.contrib.jmx/mbean">mbean</a>
</div><div style="margin-left: 1em;" class="toc-entry">
<a href="#clojure.contrib.jmx/mbean-names">mbean-names</a>
</div><div style="margin-left: 1em;" class="toc-entry">
<a href="#clojure.contrib.jmx/op-param-types">op-param-types</a>
</div><div style="margin-left: 1em;" class="toc-entry">
<a href="#clojure.contrib.jmx/operation">operation</a>
</div><div style="margin-left: 1em;" class="toc-entry">
<a href="#clojure.contrib.jmx/operation-names">operation-names</a>
</div><div style="margin-left: 1em;" class="toc-entry">
<a href="#clojure.contrib.jmx/operations">operations</a>
</div><div style="margin-left: 1em;" class="toc-entry">
<a href="#clojure.contrib.jmx/raw-read">raw-read</a>
</div><div style="margin-left: 1em;" class="toc-entry">
<a href="#clojure.contrib.jmx/read">read</a>
</div><div style="margin-left: 1em;" class="toc-entry">
<a href="#clojure.contrib.jmx/read-exceptions">read-exceptions</a>
</div><div style="margin-left: 1em;" class="toc-entry">
<a href="#clojure.contrib.jmx/read-supported">read-supported</a>
</div><div style="margin-left: 1em;" class="toc-entry">
<a href="#clojure.contrib.jmx/readable?">readable?</a>
</div><div style="margin-left: 1em;" class="toc-entry">
<a href="#clojure.contrib.jmx/with-connection">with-connection</a>
</div>
<br />
</div>
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</div>
<div id="content-tag"><h1 id="overview">API for <span id="namespace-name">jmx</span>
- <span id="header-project">clojure-contrib</span> <span id="header-version">v1.1</span> (<span id="header-status">stable</span>)
</h1>
<span id="author-line">by <span id="author-name">Stuart Halloway</span><br /></span>
<br />Full namespace name: <span id="long-name">clojure.contrib.jmx</span>
<p></p>
<h2>Overview</h2>
<pre id="namespace-docstr">JMX support for Clojure
Requires post-Clojure 1.0 git edge for clojure.test, clojure.backtrace.
This is prerelease.
This API will change.
Send reports to stu@thinkrelevance.com.
Usage
(require '[clojure.contrib.jmx :as jmx])
What beans do I have?
(jmx/mbean-names "*:*")
-> #<HashSet [java.lang:type=MemoryPool,name=CMS Old Gen,
java.lang:type=Memory, ...]
What attributes does a bean have?
(jmx/attribute-names "java.lang:type=Memory")
-> (:Verbose :ObjectPendingFinalizationCount
:HeapMemoryUsage :NonHeapMemoryUsage)
What is the value of an attribute?
(jmx/read "java.lang:type=Memory" :ObjectPendingFinalizationCount)
-> 0
Can't I just have *all* the attributes in a Clojure map?
(jmx/mbean "java.lang:type=Memory")
-> {:NonHeapMemoryUsage
{:used 16674024, :max 138412032, :init 24317952, :committed 24317952},
:HeapMemoryUsage
{:used 18619064, :max 85393408, :init 0, :committed 83230720},
:ObjectPendingFinalizationCount 0,
:Verbose false}
Can I find and invoke an operation?
(jmx/operation-names "java.lang:type=Memory")
-> (:gc)
(jmx/invoke "java.lang:type=Memory" :gc)
-> nil
What about some other process? Just run *any* of the above code
inside a with-connection:
(jmx/with-connection {:host "localhost", :port 3000}
(jmx/mbean "java.lang:type=Memory"))
-> {:ObjectPendingFinalizationCount 0,
:HeapMemoryUsage ... etc.}
Can I serve my own beans? Sure, just drop a Clojure ref
into an instance of clojure.contrib.jmx.Bean, and the bean
will expose read-only attributes for every key/value pair
in the ref:
(jmx/register-mbean
(Bean.
(ref {:string-attribute "a-string"}))
"my.namespace:name=Value")</pre>
<br />
<h2>Public Variables and Functions</h2>
<div id="var-entry">
<br />
<hr />
<h2 id="clojure.contrib.jmx/*connection*">*connection*</h2>
<span id="var-type">var</span><br />
<pre id="var-usage"></pre>
<pre id="var-docstr">The connection to be used for JMX ops. Defaults to the local process.</pre>
<a href="http://github.com/clojure/clojure-contrib/blob/d596fee7fbe2f428a34ebecbaaf9451e215d5bdf/src/clojure/contrib/jmx.clj#L83" id="var-source">Source</a>
</div><div id="var-entry">
<br />
<hr />
<h2 id="clojure.contrib.jmx/as-object-name">as-object-name</h2>
<span id="var-type">multimethod</span><br />
<pre id="var-usage">Usage: (as-object-name string-or-name)
</pre>
<pre id="var-docstr">Interpret an object as a JMX ObjectName.</pre>
<a href="http://github.com/clojure/clojure-contrib/blob/d596fee7fbe2f428a34ebecbaaf9451e215d5bdf/src/clojure/contrib/jmx/data.clj#L26" id="var-source">Source</a>
</div><div id="var-entry">
<br />
<hr />
<h2 id="clojure.contrib.jmx/attribute-info">attribute-info</h2>
<span id="var-type">function</span><br />
<pre id="var-usage">Usage: (attribute-info object-name attr-name)
</pre>
<pre id="var-docstr">Get the MBeanAttributeInfo for an attribute</pre>
<a href="http://github.com/clojure/clojure-contrib/blob/f92114c9cce5e892765549cdb0df640dc3ab52a5/src/clojure/contrib/jmx/client.clj#L69" id="var-source">Source</a>
</div><div id="var-entry">
<br />
<hr />
<h2 id="clojure.contrib.jmx/attribute-names">attribute-names</h2>
<span id="var-type">function</span><br />
<pre id="var-usage">Usage: (attribute-names n)
</pre>
<pre id="var-docstr">All attribute names available on an MBean.</pre>
<a href="http://github.com/clojure/clojure-contrib/blob/d596fee7fbe2f428a34ebecbaaf9451e215d5bdf/src/clojure/contrib/jmx.clj#L95" id="var-source">Source</a>
</div><div id="var-entry">
<br />
<hr />
<h2 id="clojure.contrib.jmx/build-attribute-info">build-attribute-info</h2>
<span id="var-type">function</span><br />
<pre id="var-usage">Usage: (build-attribute-info attr-name attr-value)
(build-attribute-info name type desc readable? writable? is?)
</pre>
<pre id="var-docstr">Construct an MBeanAttributeInfo. Normally called with a key/value pair from a Clojure map.</pre>
<a href="http://github.com/clojure/clojure-contrib/blob/d596fee7fbe2f428a34ebecbaaf9451e215d5bdf/src/clojure/contrib/jmx/data.clj#L91" id="var-source">Source</a>
</div><div id="var-entry">
<br />
<hr />
<h2 id="clojure.contrib.jmx/guess-attribute-typename">guess-attribute-typename</h2>
<span id="var-type">function</span><br />
<pre id="var-usage">Usage: (guess-attribute-typename value)
</pre>
<pre id="var-docstr">Guess the attribute typename for MBeanAttributeInfo based on the attribute value.</pre>
<a href="http://github.com/clojure/clojure-contrib/blob/d596fee7fbe2f428a34ebecbaaf9451e215d5bdf/src/clojure/contrib/jmx/data.clj#L85" id="var-source">Source</a>
</div><div id="var-entry">
<br />
<hr />
<h2 id="clojure.contrib.jmx/jmx->clj">jmx->clj</h2>
<span id="var-type">multimethod</span><br />
<pre id="var-usage">No usage documentation available</pre>
<pre id="var-docstr">Coerce JMX data structures into Clojure data.
Handles CompositeData, TabularData, maps, and atoms.</pre>
<a href="http://github.com/clojure/clojure-contrib/blob/d596fee7fbe2f428a34ebecbaaf9451e215d5bdf/src/clojure/contrib/jmx/data.clj#L64" id="var-source">Source</a>
</div><div id="var-entry">
<br />
<hr />
<h2 id="clojure.contrib.jmx/jmx-url">jmx-url</h2>
<span id="var-type">function</span><br />
<pre id="var-usage">Usage: (jmx-url)
(jmx-url overrides)
</pre>
<pre id="var-docstr">Build a JMX URL from options.</pre>
<a href="http://github.com/clojure/clojure-contrib/blob/d596fee7fbe2f428a34ebecbaaf9451e215d5bdf/src/clojure/contrib/jmx/data.clj#L19" id="var-source">Source</a>
</div><div id="var-entry">
<br />
<hr />
<h2 id="clojure.contrib.jmx/map->attribute-infos">map->attribute-infos</h2>
<span id="var-type">function</span><br />
<pre id="var-usage">Usage: (map->attribute-infos attr-map)
</pre>
<pre id="var-docstr">Construct an MBeanAttributeInfo[] from a Clojure associative.</pre>
<a href="http://github.com/clojure/clojure-contrib/blob/d596fee7fbe2f428a34ebecbaaf9451e215d5bdf/src/clojure/contrib/jmx/data.clj#L100" id="var-source">Source</a>
</div><div id="var-entry">
<br />
<hr />
<h2 id="clojure.contrib.jmx/maybe-atomize">maybe-atomize</h2>
<span id="var-type">function</span><br />
<pre id="var-usage">Usage: (maybe-atomize k)
</pre>
<pre id="var-docstr">Convert a list of length 1 into its contents, leaving other things alone.
Used to simplify keys in the tabular data API.</pre>
<a href="http://github.com/clojure/clojure-contrib/blob/d596fee7fbe2f428a34ebecbaaf9451e215d5bdf/src/clojure/contrib/jmx/data.clj#L44" id="var-source">Source</a>
</div><div id="var-entry">
<br />
<hr />
<h2 id="clojure.contrib.jmx/maybe-keywordize">maybe-keywordize</h2>
<span id="var-type">function</span><br />
<pre id="var-usage">Usage: (maybe-keywordize s)
</pre>
<pre id="var-docstr">Convert a string key to a keyword, leaving other types alone. Used to
simplify keys in the tabular data API.</pre>
<a href="http://github.com/clojure/clojure-contrib/blob/d596fee7fbe2f428a34ebecbaaf9451e215d5bdf/src/clojure/contrib/jmx/data.clj#L38" id="var-source">Source</a>
</div><div id="var-entry">
<br />
<hr />
<h2 id="clojure.contrib.jmx/mbean">mbean</h2>
<span id="var-type">function</span><br />
<pre id="var-usage">Usage: (mbean n)
</pre>
<pre id="var-docstr">Like clojure.core/bean, but for JMX beans. Returns a read-only map of
a JMX bean's attributes. If an attribute it not supported, value is
set to the exception thrown.</pre>
<a href="http://github.com/clojure/clojure-contrib/blob/d596fee7fbe2f428a34ebecbaaf9451e215d5bdf/src/clojure/contrib/jmx.clj#L114" id="var-source">Source</a>
</div><div id="var-entry">
<br />
<hr />
<h2 id="clojure.contrib.jmx/mbean-names">mbean-names</h2>
<span id="var-type">function</span><br />
<pre id="var-usage">Usage: (mbean-names n)
</pre>
<pre id="var-docstr">Finds all MBeans matching a name on the current *connection*.</pre>
<a href="http://github.com/clojure/clojure-contrib/blob/d596fee7fbe2f428a34ebecbaaf9451e215d5bdf/src/clojure/contrib/jmx.clj#L90" id="var-source">Source</a>
</div><div id="var-entry">
<br />
<hr />
<h2 id="clojure.contrib.jmx/op-param-types">op-param-types</h2>
<span id="var-type">function</span><br />
<pre id="var-usage">Usage: (op-param-types n op)
</pre>
<pre id="var-docstr">The parameter types (as class name strings) for operation op on n. Used for invoke.</pre>
<a href="http://github.com/clojure/clojure-contrib/blob/f92114c9cce5e892765549cdb0df640dc3ab52a5/src/clojure/contrib/jmx/client.clj#L90" id="var-source">Source</a>
</div><div id="var-entry">
<br />
<hr />
<h2 id="clojure.contrib.jmx/operation">operation</h2>
<span id="var-type">function</span><br />
<pre id="var-usage">Usage: (operation n op)
</pre>
<pre id="var-docstr">The MBeanOperationInfo for operation op on mbean n. Used for invoke.</pre>
<a href="http://github.com/clojure/clojure-contrib/blob/f92114c9cce5e892765549cdb0df640dc3ab52a5/src/clojure/contrib/jmx/client.clj#L85" id="var-source">Source</a>
</div><div id="var-entry">
<br />
<hr />
<h2 id="clojure.contrib.jmx/operation-names">operation-names</h2>
<span id="var-type">function</span><br />
<pre id="var-usage">Usage: (operation-names n)
</pre>
<pre id="var-docstr">All operation names available on an MBean.</pre>
<a href="http://github.com/clojure/clojure-contrib/blob/d596fee7fbe2f428a34ebecbaaf9451e215d5bdf/src/clojure/contrib/jmx.clj#L101" id="var-source">Source</a>
</div><div id="var-entry">
<br />
<hr />
<h2 id="clojure.contrib.jmx/operations">operations</h2>
<span id="var-type">function</span><br />
<pre id="var-usage">Usage: (operations n)
</pre>
<pre id="var-docstr">All oeprations available on an MBean.</pre>
<a href="http://github.com/clojure/clojure-contrib/blob/f92114c9cce5e892765549cdb0df640dc3ab52a5/src/clojure/contrib/jmx/client.clj#L80" id="var-source">Source</a>
</div><div id="var-entry">
<br />
<hr />
<h2 id="clojure.contrib.jmx/raw-read">raw-read</h2>
<span id="var-type">function</span><br />
<pre id="var-usage">Usage: (raw-read n attr)
</pre>
<pre id="var-docstr">Read an mbean property. Returns low-level Java object model for composites, tabulars, etc.
Most callers should use read.</pre>
<a href="http://github.com/clojure/clojure-contrib/blob/f92114c9cce5e892765549cdb0df640dc3ab52a5/src/clojure/contrib/jmx/client.clj#L30" id="var-source">Source</a>
</div><div id="var-entry">
<br />
<hr />
<h2 id="clojure.contrib.jmx/read">read</h2>
<span id="var-type">var</span><br />
<pre id="var-usage"></pre>
<pre id="var-docstr">Read an mbean property.</pre>
<a href="http://github.com/clojure/clojure-contrib/blob/f92114c9cce5e892765549cdb0df640dc3ab52a5/src/clojure/contrib/jmx/client.clj#L36" id="var-source">Source</a>
</div><div id="var-entry">
<br />
<hr />
<h2 id="clojure.contrib.jmx/read-exceptions">read-exceptions</h2>
<span id="var-type">var</span><br />
<pre id="var-usage"></pre>
<pre id="var-docstr">Exceptions that might be thrown if you try to read an unsupported attribute.
by testing agains jconsole and Tomcat. This is dreadful and ad-hoc but I did not
want to swallow all exceptions.</pre>
<a href="http://github.com/clojure/clojure-contrib/blob/f92114c9cce5e892765549cdb0df640dc3ab52a5/src/clojure/contrib/jmx/client.clj#L40" id="var-source">Source</a>
</div><div id="var-entry">
<br />
<hr />
<h2 id="clojure.contrib.jmx/read-supported">read-supported</h2>
<span id="var-type">function</span><br />
<pre id="var-usage">Usage: (read-supported n attr)
</pre>
<pre id="var-docstr">Calls read to read an mbean property, *returning* unsupported operation exceptions instead of throwing them.
Used to keep mbean from blowing up. Note that some terribly-behaved mbeans use java.lang.InternalError to
indicate an unsupported operation!</pre>
<a href="http://github.com/clojure/clojure-contrib/blob/f92114c9cce5e892765549cdb0df640dc3ab52a5/src/clojure/contrib/jmx/client.clj#L50" id="var-source">Source</a>
</div><div id="var-entry">
<br />
<hr />
<h2 id="clojure.contrib.jmx/readable?">readable?</h2>
<span id="var-type">function</span><br />
<pre id="var-usage">Usage: (readable? n attr)
</pre>
<pre id="var-docstr">Is attribute readable?</pre>
<a href="http://github.com/clojure/clojure-contrib/blob/f92114c9cce5e892765549cdb0df640dc3ab52a5/src/clojure/contrib/jmx/client.clj#L75" id="var-source">Source</a>
</div><div id="var-entry">
<br />
<hr />
<h2 id="clojure.contrib.jmx/with-connection">with-connection</h2>
<span id="var-type">macro</span><br />
<pre id="var-usage">Usage: (with-connection opts & body)
</pre>
<pre id="var-docstr">Execute body with JMX connection specified by opts (:port).</pre>
<a href="http://github.com/clojure/clojure-contrib/blob/f92114c9cce5e892765549cdb0df640dc3ab52a5/src/clojure/contrib/jmx/client.clj#L19" id="var-source">Source</a>
</div>
</div>
</div>
</div>
</div>
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<div style="text-align: center;" id="copyright">Copyright 2007-2010 by Rich Hickey and the various contributors</div>
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