objectmbean.html

MINA+API 关于MINA的API

<a name="126" href="#126">126</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> Map&lt;String, PropertyDescriptor&gt; propertyDescriptors =
<a name="127" href="#127">127</a>         <strong class="jxr_keyword">new</strong> HashMap&lt;String, PropertyDescriptor&gt;();
<a name="128" href="#128">128</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> TypeConverter typeConverter = <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/mina/integration/jmx/ObjectMBean.html">OgnlTypeConverter</a>();
<a name="129" href="#129">129</a> 
<a name="130" href="#130">130</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">volatile</strong> MBeanServer server;
<a name="131" href="#131">131</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">volatile</strong> ObjectName name;
<a name="132" href="#132">132</a> 
<a name="133" href="#133">133</a>     <em class="jxr_javadoccomment">/**</em>
<a name="134" href="#134">134</a> <em class="jxr_javadoccomment">     * Creates a new instance with the specified POJO.</em>
<a name="135" href="#135">135</a> <em class="jxr_javadoccomment">     */</em>
<a name="136" href="#136">136</a>     <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/mina/integration/jmx/ObjectMBean.html">ObjectMBean</a>(T source) {
<a name="137" href="#137">137</a>         <strong class="jxr_keyword">if</strong> (source == <strong class="jxr_keyword">null</strong>) {
<a name="138" href="#138">138</a>             <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> NullPointerException(<span class="jxr_string">"source"</span>);
<a name="139" href="#139">139</a>         }
<a name="140" href="#140">140</a>         
<a name="141" href="#141">141</a>         <strong class="jxr_keyword">this</strong>.source = source;
<a name="142" href="#142">142</a>         
<a name="143" href="#143">143</a>         <strong class="jxr_keyword">if</strong> (source instanceof IoService) {
<a name="144" href="#144">144</a>             transportMetadata = ((IoService) source).getTransportMetadata();
<a name="145" href="#145">145</a>         } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (source instanceof IoSession) {
<a name="146" href="#146">146</a>             transportMetadata = ((IoSession) source).getTransportMetadata();
<a name="147" href="#147">147</a>         } <strong class="jxr_keyword">else</strong> {
<a name="148" href="#148">148</a>             transportMetadata = <strong class="jxr_keyword">null</strong>;
<a name="149" href="#149">149</a>         }
<a name="150" href="#150">150</a>         
<a name="151" href="#151">151</a>         <strong class="jxr_keyword">this</strong>.info = createModelMBeanInfo(source);
<a name="152" href="#152">152</a>     }
<a name="153" href="#153">153</a>     
<a name="154" href="#154">154</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> Object getAttribute(String fqan) <strong class="jxr_keyword">throws</strong> AttributeNotFoundException,
<a name="155" href="#155">155</a>             MBeanException, ReflectionException {
<a name="156" href="#156">156</a>         <strong class="jxr_keyword">try</strong> {
<a name="157" href="#157">157</a>             <strong class="jxr_keyword">return</strong> convertValue(source.getClass(), fqan, getAttribute0(fqan), false);
<a name="158" href="#158">158</a>         } <strong class="jxr_keyword">catch</strong> (AttributeNotFoundException e) {
<a name="159" href="#159">159</a>         } <strong class="jxr_keyword">catch</strong> (Throwable e) {
<a name="160" href="#160">160</a>             throwMBeanException(e);
<a name="161" href="#161">161</a>         }
<a name="162" href="#162">162</a>         
<a name="163" href="#163">163</a>         <strong class="jxr_keyword">try</strong> {
<a name="164" href="#164">164</a>             PropertyDescriptor pdesc = propertyDescriptors.get(fqan);
<a name="165" href="#165">165</a>             Object parent = getParent(fqan);
<a name="166" href="#166">166</a>             <strong class="jxr_keyword">boolean</strong> writable = isWritable(source.getClass(), pdesc);
<a name="167" href="#167">167</a>             
<a name="168" href="#168">168</a>             <strong class="jxr_keyword">return</strong> convertValue(
<a name="169" href="#169">169</a>                     parent.getClass(), getLeafAttributeName(fqan),
<a name="170" href="#170">170</a>                     getAttribute(source, fqan, pdesc.getPropertyType()),
<a name="171" href="#171">171</a>                     writable);
<a name="172" href="#172">172</a>         } <strong class="jxr_keyword">catch</strong> (Throwable e) {
<a name="173" href="#173">173</a>             throwMBeanException(e);
<a name="174" href="#174">174</a>         }
<a name="175" href="#175">175</a>         
<a name="176" href="#176">176</a>         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalStateException();
<a name="177" href="#177">177</a>     }
<a name="178" href="#178">178</a>     
<a name="179" href="#179">179</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">void</strong> setAttribute(Attribute attribute)
<a name="180" href="#180">180</a>             <strong class="jxr_keyword">throws</strong> AttributeNotFoundException, MBeanException,
<a name="181" href="#181">181</a>             ReflectionException {
<a name="182" href="#182">182</a>         String aname = attribute.getName();
<a name="183" href="#183">183</a>         Object avalue = attribute.getValue();
<a name="184" href="#184">184</a>         
<a name="185" href="#185">185</a>         <strong class="jxr_keyword">try</strong> {
<a name="186" href="#186">186</a>             setAttribute0(aname, avalue);
<a name="187" href="#187">187</a>         } <strong class="jxr_keyword">catch</strong> (AttributeNotFoundException e) {
<a name="188" href="#188">188</a>         } <strong class="jxr_keyword">catch</strong> (Throwable e) {
<a name="189" href="#189">189</a>             throwMBeanException(e);
<a name="190" href="#190">190</a>         }
<a name="191" href="#191">191</a>         
<a name="192" href="#192">192</a>         PropertyDescriptor pdesc = propertyDescriptors.get(aname);
<a name="193" href="#193">193</a>         <strong class="jxr_keyword">if</strong> (pdesc == <strong class="jxr_keyword">null</strong>) {
<a name="194" href="#194">194</a>             throwMBeanException(<strong class="jxr_keyword">new</strong> IllegalArgumentException(
<a name="195" href="#195">195</a>                     <span class="jxr_string">"Unknown attribute: "</span> + aname));
<a name="196" href="#196">196</a>         }
<a name="197" href="#197">197</a>         
<a name="198" href="#198">198</a>         <strong class="jxr_keyword">try</strong> {
<a name="199" href="#199">199</a>             PropertyEditor e = getPropertyEditor(
<a name="200" href="#200">200</a>                     getParent(aname).getClass(),
<a name="201" href="#201">201</a>                     pdesc.getName(), pdesc.getPropertyType());
<a name="202" href="#202">202</a>             e.setAsText((String) avalue);
<a name="203" href="#203">203</a>             OgnlContext ctx = (OgnlContext) Ognl.createDefaultContext(source);
<a name="204" href="#204">204</a>             ctx.setTypeConverter(typeConverter);
<a name="205" href="#205">205</a>             Ognl.setValue(aname, ctx, source, e.getValue());
<a name="206" href="#206">206</a>         } <strong class="jxr_keyword">catch</strong> (Throwable e) {
<a name="207" href="#207">207</a>             throwMBeanException(e);
<a name="208" href="#208">208</a>         }
<a name="209" href="#209">209</a>     }
<a name="210" href="#210">210</a>     
<a name="211" href="#211">211</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> Object invoke(String name, Object params[], String signature[])
<a name="212" href="#212">212</a>             <strong class="jxr_keyword">throws</strong> MBeanException, ReflectionException {
<a name="213" href="#213">213</a>     
<a name="214" href="#214">214</a>         <em class="jxr_comment">// Handle synthetic operations first.</em>
<a name="215" href="#215">215</a>         <strong class="jxr_keyword">if</strong> (name.equals(<span class="jxr_string">"unregisterMBean"</span>)) {
<a name="216" href="#216">216</a>             <strong class="jxr_keyword">try</strong> {
<a name="217" href="#217">217</a>                 server.unregisterMBean(<strong class="jxr_keyword">this</strong>.name);
<a name="218" href="#218">218</a>                 <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>;
<a name="219" href="#219">219</a>             } <strong class="jxr_keyword">catch</strong> (InstanceNotFoundException e) {
<a name="220" href="#220">220</a>                 throwMBeanException(e);
<a name="221" href="#221">221</a>             }
<a name="222" href="#222">222</a>         }
<a name="223" href="#223">223</a>         
<a name="224" href="#224">224</a>         <strong class="jxr_keyword">try</strong> {
<a name="225" href="#225">225</a>             <strong class="jxr_keyword">return</strong> convertValue(
<a name="226" href="#226">226</a>                     <strong class="jxr_keyword">null</strong>, <strong class="jxr_keyword">null</strong>, invoke0(name, params, signature), false);
<a name="227" href="#227">227</a>         } <strong class="jxr_keyword">catch</strong> (NoSuchMethodException e) {
<a name="228" href="#228">228</a>         } <strong class="jxr_keyword">catch</strong> (Throwable e) {
<a name="229" href="#229">229</a>             throwMBeanException(e);
<a name="230" href="#230">230</a>         }
<a name="231" href="#231">231</a>         
<a name="232" href="#232">232</a>         <em class="jxr_comment">// And then try reflection.</em>
<a name="233" href="#233">233</a>         Class&lt;?&gt;[] paramTypes = <strong class="jxr_keyword">new</strong> Class[signature.length];
<a name="234" href="#234">234</a>         <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i &lt; paramTypes.length; i ++) {
<a name="235" href="#235">235</a>             <strong class="jxr_keyword">try</strong> {
<a name="236" href="#236">236</a>                 paramTypes[i] = getAttributeClass(signature[i]);
<a name="237" href="#237">237</a>             } <strong class="jxr_keyword">catch</strong> (ClassNotFoundException e) {
<a name="238" href="#238">238</a>                 throwMBeanException(e);
<a name="239" href="#239">239</a>             }
<a name="240" href="#240">240</a>             
<a name="241" href="#241">241</a>             PropertyEditor e = getPropertyEditor(
<a name="242" href="#242">242</a>                     source.getClass(), <span class="jxr_string">"p"</span> + i, paramTypes[i]);
<a name="243" href="#243">243</a>             <strong class="jxr_keyword">if</strong> (e == <strong class="jxr_keyword">null</strong>) {
<a name="244" href="#244">244</a>                 throwMBeanException(<strong class="jxr_keyword">new</strong> RuntimeException(<span class="jxr_string">"Conversion failure: "</span> + params[i]));
<a name="245" href="#245">245</a>             }
<a name="246" href="#246">246</a>             
<a name="247" href="#247">247</a>             e.setValue(params[i]);
<a name="248" href="#248">248</a>             params[i] = e.getAsText();
<a name="249" href="#249">249</a>         }
<a name="250" href="#250">250</a>         
<a name="251" href="#251">251</a>         <strong class="jxr_keyword">try</strong> {
<a name="252" href="#252">252</a>             <em class="jxr_comment">// Find the right method.</em>
<a name="253" href="#253">253</a>             <strong class="jxr_keyword">for</strong> (Method m: source.getClass().getMethods()) {
<a name="254" href="#254">254</a>                 <strong class="jxr_keyword">if</strong> (!m.getName().equalsIgnoreCase(name)) {
<a name="255" href="#255">255</a>                     <strong class="jxr_keyword">continue</strong>;
<a name="256" href="#256">256</a>                 }
<a name="257" href="#257">257</a>                 Class&lt;?&gt;[] methodParamTypes = m.getParameterTypes();
<a name="258" href="#258">258</a>                 <strong class="jxr_keyword">if</strong> (methodParamTypes.length != params.length) {
<a name="259" href="#259">259</a>                     <strong class="jxr_keyword">continue</strong>;
<a name="260" href="#260">260</a>                 }