jmxutils.html

用JAVA编写的,在做实验的时候留下来的,本来想删的,但是传上来,大家分享吧

<a name="232" href="#232">232</a>     }
<a name="233" href="#233">233</a>     
<a name="234" href="#234">234</a>     <em>/**<em>*</em></em>
<a name="235" href="#235">235</a> <em>     * @param classString Java class name.</em>
<a name="236" href="#236">236</a> <em>     * @param defaultType If no equivalent found, use passed defaultType.</em>
<a name="237" href="#237">237</a> <em>     * @return Its OpenType equivalent.</em>
<a name="238" href="#238">238</a> <em>     */</em>
<a name="239" href="#239">239</a>     <strong>public</strong> <strong>static</strong> OpenType getOpenType(String classString,
<a name="240" href="#240">240</a>             <strong>final</strong> OpenType defaultType) {
<a name="241" href="#241">241</a>         <strong>if</strong> (classString.equals(<span class="string">"void"</span>)) {
<a name="242" href="#242">242</a>             <strong>return</strong> SimpleType.VOID;
<a name="243" href="#243">243</a>         }
<a name="244" href="#244">244</a>         <strong>if</strong> (!isOpenType(classString)) {
<a name="245" href="#245">245</a>             <strong>throw</strong> <strong>new</strong> InvalidOpenTypeException(classString);
<a name="246" href="#246">246</a>         }
<a name="247" href="#247">247</a>         <strong>if</strong> (<strong>class</strong>String.equals(String.<strong>class</strong>.getName())) {
<a name="248" href="#248">248</a>             <strong>return</strong> SimpleType.STRING;
<a name="249" href="#249">249</a>         } <strong>else</strong> <strong>if</strong> (<strong>class</strong>String.equals(Boolean.<strong>class</strong>.getName())) {
<a name="250" href="#250">250</a>             <strong>return</strong> SimpleType.BOOLEAN;
<a name="251" href="#251">251</a>         } <strong>else</strong> <strong>if</strong> (<strong>class</strong>String.equals(Long.<strong>class</strong>.getName())) {
<a name="252" href="#252">252</a>             <strong>return</strong> SimpleType.LONG;
<a name="253" href="#253">253</a>         } <strong>else</strong> <strong>if</strong> (<strong>class</strong>String.equals(Integer.<strong>class</strong>.getName())) {
<a name="254" href="#254">254</a>             <strong>return</strong> SimpleType.INTEGER;
<a name="255" href="#255">255</a>         } <strong>else</strong> <strong>if</strong> (<strong>class</strong>String.equals(Float.<strong>class</strong>.getName())) {
<a name="256" href="#256">256</a>             <strong>return</strong> SimpleType.FLOAT;
<a name="257" href="#257">257</a>         } <strong>else</strong> <strong>if</strong> (<strong>class</strong>String.equals(Double.<strong>class</strong>.getName())) {
<a name="258" href="#258">258</a>             <strong>return</strong> SimpleType.DOUBLE;
<a name="259" href="#259">259</a>         } <strong>else</strong> <strong>if</strong> (defaultType != <strong>null</strong>) {
<a name="260" href="#260">260</a>             <strong>return</strong> defaultType;
<a name="261" href="#261">261</a>         }
<a name="262" href="#262">262</a>         <strong>throw</strong> <strong>new</strong> RuntimeException(<span class="string">"Unsupported type: "</span> + classString);
<a name="263" href="#263">263</a>     }
<a name="264" href="#264">264</a>    
<a name="265" href="#265">265</a>     <em>/**<em>*</em></em>
<a name="266" href="#266">266</a> <em>     * @param in AttributeInfo to convert.</em>
<a name="267" href="#267">267</a> <em>     * @return OpenMBeanAttributeInfo version of &lt;code>in&lt;/code>.</em>
<a name="268" href="#268">268</a> <em>     */</em>
<a name="269" href="#269">269</a>     <strong>public</strong> <strong>static</strong> OpenMBeanAttributeInfo
<a name="270" href="#270">270</a>     convertToOpenMBeanAttribute(MBeanAttributeInfo in) {
<a name="271" href="#271">271</a>         <strong>return</strong> convertToOpenMBeanAttribute(in, <strong>null</strong>);
<a name="272" href="#272">272</a>     }
<a name="273" href="#273">273</a> 
<a name="274" href="#274">274</a>     <em>/**<em>*</em></em>
<a name="275" href="#275">275</a> <em>     * @param in AttributeInfo to convert.</em>
<a name="276" href="#276">276</a> <em>     * @param prefix Prefix to add to names of new attributes. If null, nothing</em>
<a name="277" href="#277">277</a> <em>     * is added.</em>
<a name="278" href="#278">278</a> <em>     * @return OpenMBeanAttributeInfo version of &lt;code>in&lt;/code>.</em>
<a name="279" href="#279">279</a> <em>     */</em>
<a name="280" href="#280">280</a>     <strong>public</strong> <strong>static</strong> OpenMBeanAttributeInfo
<a name="281" href="#281">281</a>             convertToOpenMBeanAttribute(<strong>final</strong> MBeanAttributeInfo in,
<a name="282" href="#282">282</a>                     <strong>final</strong> String prefix) {
<a name="283" href="#283">283</a>         <strong>return</strong> createOpenMBeanAttributeInfo(getOpenType(in.getType()), in,
<a name="284" href="#284">284</a>                 prefix);
<a name="285" href="#285">285</a>     }
<a name="286" href="#286">286</a>     
<a name="287" href="#287">287</a>     <em>/**<em>*</em></em>
<a name="288" href="#288">288</a> <em>     * @param type Type of new OpenMBeanAttributeInfo.</em>
<a name="289" href="#289">289</a> <em>     * @param in The MBeanAttributeInfo we're converting.</em>
<a name="290" href="#290">290</a> <em>     * @param prefix Prefix to add to name of new Attribute (If null, nothing</em>
<a name="291" href="#291">291</a> <em>     * is added).</em>
<a name="292" href="#292">292</a> <em>     * @return New OpenMBeanAttributeInfo based on &lt;code>in&lt;/code>.</em>
<a name="293" href="#293">293</a> <em>     */</em>
<a name="294" href="#294">294</a>     <strong>public</strong> <strong>static</strong> OpenMBeanAttributeInfo createOpenMBeanAttributeInfo(
<a name="295" href="#295">295</a>             <strong>final</strong> OpenType type, <strong>final</strong> MBeanAttributeInfo in,
<a name="296" href="#296">296</a>             <strong>final</strong> String prefix) {
<a name="297" href="#297">297</a>         <strong>return</strong> <strong>new</strong> OpenMBeanAttributeInfoSupport(
<a name="298" href="#298">298</a>                 ((prefix != <strong>null</strong>)? prefix + in.getName(): in.getName()),
<a name="299" href="#299">299</a>                 in.getDescription(), type, in.isReadable(),
<a name="300" href="#300">300</a>                 in.isWritable(), in.isIs());
<a name="301" href="#301">301</a>     }
<a name="302" href="#302">302</a>     
<a name="303" href="#303">303</a>     <em>/**<em>*</em></em>
<a name="304" href="#304">304</a> <em>     * @param m A map to make a CompositeType of (Assumption is that order does</em>
<a name="305" href="#305">305</a> <em>     * not matter. If it does, pass a map of sorted keys).</em>
<a name="306" href="#306">306</a> <em>     * @param compositeTypeName Name to give created compositeType.</em>
<a name="307" href="#307">307</a> <em>     * @param compositeTypeDescription Description.</em>
<a name="308" href="#308">308</a> <em>     * @return CompositeType made by examination of passed TreeMap.</em>
<a name="309" href="#309">309</a> <em>     * @throws OpenDataException</em>
<a name="310" href="#310">310</a> <em>     */</em>
<a name="311" href="#311">311</a>     <strong>public</strong> <strong>static</strong> CompositeType createCompositeType(<strong>final</strong> Map m,
<a name="312" href="#312">312</a>             <strong>final</strong> String compositeTypeName,
<a name="313" href="#313">313</a>             <strong>final</strong> String compositeTypeDescription)
<a name="314" href="#314">314</a>     throws OpenDataException {
<a name="315" href="#315">315</a>         String [] keys = <strong>new</strong> String[m.size()];
<a name="316" href="#316">316</a>         OpenType [] types = <strong>new</strong> OpenType[m.size()];
<a name="317" href="#317">317</a>         <strong>int</strong> index = 0;
<a name="318" href="#318">318</a>         <strong>for</strong> (<strong>final</strong> Iterator i = m.keySet().iterator(); i.hasNext();) {
<a name="319" href="#319">319</a>             String key = (String)i.next();
<a name="320" href="#320">320</a>             keys[index] = key;
<a name="321" href="#321">321</a>             types[index] = getOpenType(m.get(key).getClass().getName());
<a name="322" href="#322">322</a>             index++;
<a name="323" href="#323">323</a>         }
<a name="324" href="#324">324</a>         <strong>return</strong> <strong>new</strong> CompositeType(compositeTypeName, compositeTypeDescription,
<a name="325" href="#325">325</a>             keys, keys, types);
<a name="326" href="#326">326</a>     }
<a name="327" href="#327">327</a> 
<a name="328" href="#328">328</a>     <strong>public</strong> <strong>static</strong> InetSocketAddress extractAddress(<strong>final</strong> ObjectName name) {
<a name="329" href="#329">329</a>         <strong>return</strong> <strong>new</strong> InetSocketAddress(name.getKeyProperty(HOST),
<a name="330" href="#330">330</a>             Integer.parseInt(name.getKeyProperty(JMX_PORT)));
<a name="331" href="#331">331</a>     }
<a name="332" href="#332">332</a> 
<a name="333" href="#333">333</a>     <em>/**<em>*</em></em>
<a name="334" href="#334">334</a> <em>     * Returns the UID portion of the name key property of</em>
<a name="335" href="#335">335</a> <em>     * an object name representing a "CrawlService.Job" bean.</em>
<a name="336" href="#336">336</a> <em>     * It is assumed that the name will have the format</em>
<a name="337" href="#337">337</a> <em>     * {crawl name}-{uid}.</em>
<a name="338" href="#338">338</a> <em>     * @param on A CrawlServer.Job object name.</em>
<a name="339" href="#339">339</a> <em>     * @return Uid for a CrawlServer.Job.</em>
<a name="340" href="#340">340</a> <em>     */</em>
<a name="341" href="#341">341</a>     <strong>public</strong> <strong>static</strong> String getUid(<strong>final</strong> ObjectName on) {
<a name="342" href="#342">342</a>         String name = on.getKeyProperty(NAME);
<a name="343" href="#343">343</a>         <strong>return</strong> name.substring(name.indexOf(<span class="string">"-"</span>) + 1);
<a name="344" href="#344">344</a>     }
<a name="345" href="#345">345</a> }
</pre>
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