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="112" href="#112">112</a>     
<a name="113" href="#113">113</a>     <strong>public</strong> <strong>static</strong> String getServerDetail(<strong>final</strong> MBeanServer server) {
<a name="114" href="#114">114</a>         ObjectName delegateName = <strong>null</strong>;
<a name="115" href="#115">115</a>         <strong>try</strong> {
<a name="116" href="#116">116</a>             delegateName = <strong>new</strong> ObjectName(
<a name="117" href="#117">117</a>                     <span class="string">"JMImplementation:type=MBeanServerDelegate"</span>);
<a name="118" href="#118">118</a>         } <strong>catch</strong> (MalformedObjectNameException e) {
<a name="119" href="#119">119</a>             LOGGER.log(Level.SEVERE, <span class="string">"Failed to create ObjectName for "</span> +
<a name="120" href="#120">120</a>                     <span class="string">"JMImplementation:type=MBeanServerDelegate"</span>, e);
<a name="121" href="#121">121</a>             <strong>return</strong> <strong>null</strong>;
<a name="122" href="#122">122</a>         }
<a name="123" href="#123">123</a>         StringBuffer buffer = <strong>new</strong> StringBuffer(<span class="string">"MBeanServerId="</span>);
<a name="124" href="#124">124</a>         <strong>try</strong> {
<a name="125" href="#125">125</a>             buffer.append((String) server.getAttribute(delegateName,
<a name="126" href="#126">126</a>                     <span class="string">"MBeanServerId"</span>));
<a name="127" href="#127">127</a>             buffer.append(<span class="string">", SpecificationVersion="</span>);
<a name="128" href="#128">128</a>             buffer.append((String) server.getAttribute(delegateName,
<a name="129" href="#129">129</a>                     <span class="string">"SpecificationVersion"</span>));
<a name="130" href="#130">130</a>             buffer.append(<span class="string">", ImplementationVersion="</span>);
<a name="131" href="#131">131</a>             buffer.append((String) server.getAttribute(delegateName,
<a name="132" href="#132">132</a>                     <span class="string">"ImplementationVersion"</span>));
<a name="133" href="#133">133</a>             buffer.append(<span class="string">", SpecificationVendor="</span>);
<a name="134" href="#134">134</a>             buffer.append((String) server.getAttribute(delegateName,
<a name="135" href="#135">135</a>                     <span class="string">"SpecificationVendor"</span>));
<a name="136" href="#136">136</a>         } <strong>catch</strong> (Exception e) {
<a name="137" href="#137">137</a>             LOGGER.log(Level.SEVERE, <span class="string">"Failed gettting server detail for "</span> +
<a name="138" href="#138">138</a>                     <span class="string">"JMImplementation:type=MBeanServerDelegate"</span>, e);
<a name="139" href="#139">139</a>         }
<a name="140" href="#140">140</a>         <strong>return</strong> buffer.toString();
<a name="141" href="#141">141</a>     }
<a name="142" href="#142">142</a>     
<a name="143" href="#143">143</a>     <em>/**<em>*</em></em>
<a name="144" href="#144">144</a> <em>     * @param operationName</em>
<a name="145" href="#145">145</a> <em>     *            Name of operation we're checking params on (Used in exception</em>
<a name="146" href="#146">146</a> <em>     *            if one thrown).</em>
<a name="147" href="#147">147</a> <em>     * @param params</em>
<a name="148" href="#148">148</a> <em>     *            Amount of params passed.</em>
<a name="149" href="#149">149</a> <em>     * @param count</em>
<a name="150" href="#150">150</a> <em>     *            Count of params expected.</em>
<a name="151" href="#151">151</a> <em>     */</em>
<a name="152" href="#152">152</a>     <strong>public</strong> <strong>static</strong> <strong>void</strong> checkParamsCount(String operationName, Object[] params,
<a name="153" href="#153">153</a>             <strong>int</strong> count) {
<a name="154" href="#154">154</a>         <strong>if</strong> ((params.length != count)) {
<a name="155" href="#155">155</a>             <strong>throw</strong> <strong>new</strong> RuntimeOperationsException(
<a name="156" href="#156">156</a>                 <strong>new</strong> IllegalArgumentException(
<a name="157" href="#157">157</a>                   <span class="string">"Cannot invoke "</span> + operationName + <span class="string">": Passed "</span> +
<a name="158" href="#158">158</a>                   Integer.toString(params.length) + <span class="string">" argument(s) "</span> +
<a name="159" href="#159">159</a>                   <span class="string">"but expected "</span> + Integer.toString(count)),
<a name="160" href="#160">160</a>                   <span class="string">"Wrong number of arguments passed: unable to invoke "</span> +
<a name="161" href="#161">161</a>                   operationName + <span class="string">" method"</span>);
<a name="162" href="#162">162</a>         } 
<a name="163" href="#163">163</a>     }
<a name="164" href="#164">164</a>     
<a name="165" href="#165">165</a>     <em>/**<em>*</em></em>
<a name="166" href="#166">166</a> <em>     * @param in MBeanOperation to convert.</em>
<a name="167" href="#167">167</a> <em>     * @return An OpenMBeanOperation version of the passed MBeanOperation.</em>
<a name="168" href="#168">168</a> <em>     */</em>
<a name="169" href="#169">169</a>     <strong>public</strong> <strong>static</strong> OpenMBeanOperationInfo convertToOpenMBeanOperation(
<a name="170" href="#170">170</a>             MBeanOperationInfo in) {
<a name="171" href="#171">171</a>         <strong>return</strong> convertToOpenMBeanOperation(in, <strong>null</strong>, <strong>null</strong>);
<a name="172" href="#172">172</a>     }
<a name="173" href="#173">173</a>     
<a name="174" href="#174">174</a>     <em>/**<em>*</em></em>
<a name="175" href="#175">175</a> <em>     * @param in MBeanOperation to convert.</em>
<a name="176" href="#176">176</a> <em>     * @param prefix A prefix to add to the name of new operation.</em>
<a name="177" href="#177">177</a> <em>     * @param returnType Return type to use in new operation.  Use this</em>
<a name="178" href="#178">178</a> <em>     * parameter to override the passed &lt;code>in&lt;/code> return type.</em>
<a name="179" href="#179">179</a> <em>     * @return An OpenMBeanOperation version of the passed MBeanOperation.</em>
<a name="180" href="#180">180</a> <em>     */</em>   
<a name="181" href="#181">181</a>     <strong>public</strong> <strong>static</strong> OpenMBeanOperationInfo convertToOpenMBeanOperation(
<a name="182" href="#182">182</a>             <strong>final</strong> MBeanOperationInfo in, <strong>final</strong> String prefix,
<a name="183" href="#183">183</a>             <strong>final</strong> OpenType returnType) {
<a name="184" href="#184">184</a>         MBeanParameterInfo [] params = in.getSignature();
<a name="185" href="#185">185</a>         OpenMBeanParameterInfo [] signature =
<a name="186" href="#186">186</a>             <strong>new</strong> OpenMBeanParameterInfo[params.length];
<a name="187" href="#187">187</a>         <strong>for</strong> (<strong>int</strong> i = 0; i &lt; params.length; i++) {
<a name="188" href="#188">188</a>             signature[i] = convertToOpenMBeanOperationInfo(params[i]);
<a name="189" href="#189">189</a>         }
<a name="190" href="#190">190</a>         <strong>return</strong> <strong>new</strong> OpenMBeanOperationInfoSupport(
<a name="191" href="#191">191</a>                 ((prefix != <strong>null</strong>)? prefix + in.getName(): in.getName()),
<a name="192" href="#192">192</a>                 in.getDescription(), signature,
<a name="193" href="#193">193</a>                 (returnType != <strong>null</strong>)?
<a name="194" href="#194">194</a>                         returnType: getOpenType(in.getReturnType()),
<a name="195" href="#195">195</a>                 convertImpact(in.getImpact()));
<a name="196" href="#196">196</a>     }
<a name="197" href="#197">197</a>     
<a name="198" href="#198">198</a>     <strong>public</strong> <strong>static</strong> <strong>int</strong> convertImpact(<strong>final</strong> <strong>int</strong> impact) {
<a name="199" href="#199">199</a>         <strong>if</strong> (impact != MBeanOperationInfo.ACTION &amp;&amp;
<a name="200" href="#200">200</a>                 impact != MBeanOperationInfo.ACTION_INFO &amp;&amp;
<a name="201" href="#201">201</a>                 impact != MBeanOperationInfo.INFO) {
<a name="202" href="#202">202</a>             <em class="comment">// Don't allow back MBeanOperationInfo.UNKNOWN impact.</em>
<a name="203" href="#203">203</a>             <strong>return</strong> MBeanOperationInfo.ACTION_INFO;
<a name="204" href="#204">204</a>         }
<a name="205" href="#205">205</a>         <strong>return</strong> impact;
<a name="206" href="#206">206</a>     }
<a name="207" href="#207">207</a>     
<a name="208" href="#208">208</a>     <em>/**<em>*</em></em>
<a name="209" href="#209">209</a> <em>     * @param in MBeanParameterInfo to convert to an OpenMBeanParameterInfo.</em>
<a name="210" href="#210">210</a> <em>     * @return OpenMBeanParameterInfo version of &lt;code>in&lt;/code></em>
<a name="211" href="#211">211</a> <em>     */</em>
<a name="212" href="#212">212</a>     <strong>public</strong> <strong>static</strong> OpenMBeanParameterInfo
<a name="213" href="#213">213</a>             convertToOpenMBeanOperationInfo(MBeanParameterInfo in) {
<a name="214" href="#214">214</a>         <strong>return</strong> <strong>new</strong> OpenMBeanParameterInfoSupport(in.getName(),
<a name="215" href="#215">215</a>                 in.getDescription(), getOpenType(in.getType())); 
<a name="216" href="#216">216</a>     }
<a name="217" href="#217">217</a>     
<a name="218" href="#218">218</a>     <strong>public</strong> <strong>static</strong> <strong>boolean</strong> isOpenType(<strong>final</strong> Class c) {
<a name="219" href="#219">219</a>         <strong>return</strong> isOpenType(c.getName());
<a name="220" href="#220">220</a>     }
<a name="221" href="#221">221</a>     
<a name="222" href="#222">222</a>     <strong>public</strong> <strong>static</strong> <strong>boolean</strong> isOpenType(<strong>final</strong> String classname) {
<a name="223" href="#223">223</a>         <strong>return</strong> OPENTYPES.contains(classname);
<a name="224" href="#224">224</a>     }
<a name="225" href="#225">225</a> 
<a name="226" href="#226">226</a>     <em>/**<em>*</em></em>
<a name="227" href="#227">227</a> <em>     * @param classString Java class name.</em>
<a name="228" href="#228">228</a> <em>     * @return Its OpenType equivalent.</em>
<a name="229" href="#229">229</a> <em>     */</em>
<a name="230" href="#230">230</a>     <strong>public</strong> <strong>static</strong> OpenType getOpenType(<strong>final</strong> String classString) {
<a name="231" href="#231">231</a>         <strong>return</strong> getOpenType(classString, <strong>null</strong>);