objectmbean.html

MINA+API 关于MINA的API

<a name="396" href="#396">396</a>             <strong class="jxr_keyword">throws</strong> ListenerNotFoundException {
<a name="397" href="#397">397</a>     }
<a name="398" href="#398">398</a> 
<a name="399" href="#399">399</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> load() <strong class="jxr_keyword">throws</strong> InstanceNotFoundException, MBeanException,
<a name="400" href="#400">400</a>             RuntimeOperationsException {
<a name="401" href="#401">401</a>         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> RuntimeOperationsException(<strong class="jxr_keyword">new</strong> UnsupportedOperationException());
<a name="402" href="#402">402</a>     }
<a name="403" href="#403">403</a> 
<a name="404" href="#404">404</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> store() <strong class="jxr_keyword">throws</strong> InstanceNotFoundException, MBeanException,
<a name="405" href="#405">405</a>             RuntimeOperationsException {
<a name="406" href="#406">406</a>         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> RuntimeOperationsException(<strong class="jxr_keyword">new</strong> UnsupportedOperationException());
<a name="407" href="#407">407</a>     }
<a name="408" href="#408">408</a> 
<a name="409" href="#409">409</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> ObjectName preRegister(MBeanServer server, ObjectName name)
<a name="410" href="#410">410</a>             <strong class="jxr_keyword">throws</strong> Exception {
<a name="411" href="#411">411</a>         <strong class="jxr_keyword">this</strong>.server = server;
<a name="412" href="#412">412</a>         <strong class="jxr_keyword">this</strong>.name = name;
<a name="413" href="#413">413</a>         <strong class="jxr_keyword">return</strong> name;
<a name="414" href="#414">414</a>     }
<a name="415" href="#415">415</a> 
<a name="416" href="#416">416</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">void</strong> postRegister(Boolean registrationDone) {
<a name="417" href="#417">417</a>         <strong class="jxr_keyword">if</strong> (registrationDone) {
<a name="418" href="#418">418</a>             sources.put(name, source);
<a name="419" href="#419">419</a>         }
<a name="420" href="#420">420</a>     }
<a name="421" href="#421">421</a> 
<a name="422" href="#422">422</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">void</strong> preDeregister() <strong class="jxr_keyword">throws</strong> Exception {
<a name="423" href="#423">423</a>     }
<a name="424" href="#424">424</a> 
<a name="425" href="#425">425</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">void</strong> postDeregister() {
<a name="426" href="#426">426</a>         sources.remove(name);
<a name="427" href="#427">427</a>         <strong class="jxr_keyword">this</strong>.server = <strong class="jxr_keyword">null</strong>;
<a name="428" href="#428">428</a>         <strong class="jxr_keyword">this</strong>.name = <strong class="jxr_keyword">null</strong>;
<a name="429" href="#429">429</a>     }
<a name="430" href="#430">430</a> 
<a name="431" href="#431">431</a>     <strong class="jxr_keyword">private</strong> MBeanInfo createModelMBeanInfo(T source) {
<a name="432" href="#432">432</a>         String className = source.getClass().getName();
<a name="433" href="#433">433</a>         String description = <span class="jxr_string">""</span>;
<a name="434" href="#434">434</a>         
<a name="435" href="#435">435</a>         ModelMBeanConstructorInfo[] constructors = <strong class="jxr_keyword">new</strong> ModelMBeanConstructorInfo[0];
<a name="436" href="#436">436</a>         ModelMBeanNotificationInfo[] notifications = <strong class="jxr_keyword">new</strong> ModelMBeanNotificationInfo[0];
<a name="437" href="#437">437</a>         
<a name="438" href="#438">438</a>         List&lt;ModelMBeanAttributeInfo&gt; attributes = <strong class="jxr_keyword">new</strong> ArrayList&lt;ModelMBeanAttributeInfo&gt;();
<a name="439" href="#439">439</a>         List&lt;ModelMBeanOperationInfo&gt; operations = <strong class="jxr_keyword">new</strong> ArrayList&lt;ModelMBeanOperationInfo&gt;();
<a name="440" href="#440">440</a>         
<a name="441" href="#441">441</a>         addAttributes(attributes, source);
<a name="442" href="#442">442</a>         addExtraAttributes(attributes);
<a name="443" href="#443">443</a>         
<a name="444" href="#444">444</a>         addOperations(operations, source);
<a name="445" href="#445">445</a>         addExtraOperations(operations);
<a name="446" href="#446">446</a>         operations.add(<strong class="jxr_keyword">new</strong> ModelMBeanOperationInfo(
<a name="447" href="#447">447</a>                 <span class="jxr_string">"unregisterMBean"</span>, <span class="jxr_string">"unregisterMBean"</span>,
<a name="448" href="#448">448</a>                 <strong class="jxr_keyword">new</strong> MBeanParameterInfo[0], <strong class="jxr_keyword">void</strong>.<strong class="jxr_keyword">class</strong>.getName(), 
<a name="449" href="#449">449</a>                 ModelMBeanOperationInfo.ACTION));
<a name="450" href="#450">450</a> 
<a name="451" href="#451">451</a>         <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> ModelMBeanInfoSupport(
<a name="452" href="#452">452</a>                 className, description,
<a name="453" href="#453">453</a>                 attributes.toArray(<strong class="jxr_keyword">new</strong> ModelMBeanAttributeInfo[attributes.size()]),
<a name="454" href="#454">454</a>                 constructors,
<a name="455" href="#455">455</a>                 operations.toArray(<strong class="jxr_keyword">new</strong> ModelMBeanOperationInfo[operations.size()]),
<a name="456" href="#456">456</a>                 notifications);
<a name="457" href="#457">457</a>     }
<a name="458" href="#458">458</a>     
<a name="459" href="#459">459</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> addAttributes(
<a name="460" href="#460">460</a>             List&lt;ModelMBeanAttributeInfo&gt; attributes, Object object) {
<a name="461" href="#461">461</a>         addAttributes(attributes, object, object.getClass(), <span class="jxr_string">""</span>);
<a name="462" href="#462">462</a>     }
<a name="463" href="#463">463</a> 
<a name="464" href="#464">464</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> addAttributes(
<a name="465" href="#465">465</a>             List&lt;ModelMBeanAttributeInfo&gt; attributes,
<a name="466" href="#466">466</a>             Object object, Class&lt;?&gt; type, String prefix) {
<a name="467" href="#467">467</a>         
<a name="468" href="#468">468</a>         PropertyDescriptor[] pdescs;
<a name="469" href="#469">469</a>         <strong class="jxr_keyword">try</strong> {
<a name="470" href="#470">470</a>             pdescs = Introspector.getBeanInfo(type).getPropertyDescriptors();
<a name="471" href="#471">471</a>         } <strong class="jxr_keyword">catch</strong> (IntrospectionException e) {
<a name="472" href="#472">472</a>             <strong class="jxr_keyword">return</strong>;
<a name="473" href="#473">473</a>         }
<a name="474" href="#474">474</a> 
<a name="475" href="#475">475</a>         <strong class="jxr_keyword">for</strong> (PropertyDescriptor pdesc: pdescs) {
<a name="476" href="#476">476</a>             <em class="jxr_comment">// Ignore a write-only property.</em>
<a name="477" href="#477">477</a>             <strong class="jxr_keyword">if</strong> (pdesc.getReadMethod() == <strong class="jxr_keyword">null</strong>) {
<a name="478" href="#478">478</a>                 <strong class="jxr_keyword">continue</strong>;
<a name="479" href="#479">479</a>             }
<a name="480" href="#480">480</a>             
<a name="481" href="#481">481</a>             <em class="jxr_comment">// Ignore unmanageable property.</em>
<a name="482" href="#482">482</a>             String attrName = pdesc.getName();
<a name="483" href="#483">483</a>             Class&lt;?&gt; attrType = pdesc.getPropertyType();
<a name="484" href="#484">484</a>             <strong class="jxr_keyword">if</strong> (attrName.equals(<span class="jxr_string">"class"</span>)) {
<a name="485" href="#485">485</a>                 <strong class="jxr_keyword">continue</strong>;
<a name="486" href="#486">486</a>             }
<a name="487" href="#487">487</a>             <strong class="jxr_keyword">if</strong> (!isReadable(type, attrName)) {
<a name="488" href="#488">488</a>                 <strong class="jxr_keyword">continue</strong>;
<a name="489" href="#489">489</a>             }
<a name="490" href="#490">490</a>             
<a name="491" href="#491">491</a>             <em class="jxr_comment">// Expand if possible.</em>
<a name="492" href="#492">492</a>             <strong class="jxr_keyword">if</strong> (isExpandable(type, attrName)) {
<a name="493" href="#493">493</a>                 expandAttribute(attributes, object, prefix, pdesc);
<a name="494" href="#494">494</a>                 <strong class="jxr_keyword">continue</strong>;
<a name="495" href="#495">495</a>             }
<a name="496" href="#496">496</a>     
<a name="497" href="#497">497</a>             <em class="jxr_comment">// Ordinary property.</em>
<a name="498" href="#498">498</a>             String fqan = prefix + attrName;
<a name="499" href="#499">499</a>             <strong class="jxr_keyword">boolean</strong> writable = isWritable(type, pdesc);
<a name="500" href="#500">500</a>             attributes.add(<strong class="jxr_keyword">new</strong> ModelMBeanAttributeInfo(
<a name="501" href="#501">501</a>                     fqan, convertType(
<a name="502" href="#502">502</a>                             object.getClass(), attrName, attrType, writable).getName(),
<a name="503" href="#503">503</a>                     pdesc.getShortDescription(), <strong class="jxr_keyword">true</strong>, writable, false));
<a name="504" href="#504">504</a>             
<a name="505" href="#505">505</a>             propertyDescriptors.put(fqan, pdesc);
<a name="506" href="#506">506</a>         }
<a name="507" href="#507">507</a>     }
<a name="508" href="#508">508</a> 
<a name="509" href="#509">509</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> isWritable(Class&lt;?&gt; type, PropertyDescriptor pdesc) {
<a name="510" href="#510">510</a>         <strong class="jxr_keyword">if</strong> (type == <strong class="jxr_keyword">null</strong>) {
<a name="511" href="#511">511</a>             <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> NullPointerException(<span class="jxr_string">"type"</span>);
<a name="512" href="#512">512</a>         }
<a name="513" href="#513">513</a>         <strong class="jxr_keyword">if</strong> (pdesc == <strong class="jxr_keyword">null</strong>) {
<a name="514" href="#514">514</a>             <strong class="jxr_keyword">return</strong> false;
<a name="515" href="#515">515</a>         }
<a name="516" href="#516">516</a>         String attrName = pdesc.getName();
<a name="517" href="#517">517</a>         Class&lt;?&gt; attrType = pdesc.getPropertyType();
<a name="518" href="#518">518</a>         <strong class="jxr_keyword">boolean</strong> writable = pdesc.getWriteMethod() != <strong class="jxr_keyword">null</strong> || isWritable(type, attrName);
<a name="519" href="#519">519</a>         <strong class="jxr_keyword">if</strong> (getPropertyEditor(type, attrName, attrType) == <strong class="jxr_keyword">null</strong>) {
<a name="520" href="#520">520</a>             writable = false;
<a name="521" href="#521">521</a>         }
<a name="522" href="#522">522</a>         <strong class="jxr_keyword">return</strong> writable;
<a name="523" href="#523">523</a>     }
<a name="524" href="#524">524</a> 
<a name="525" href="#525">525</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> expandAttribute(
<a name="526" href="#526">526</a>             List&lt;ModelMBeanAttributeInfo&gt; attributes,
<a name="527" href="#527">527</a>             Object object, String prefix, PropertyDescriptor pdesc) {
<a name="528" href="#528">528</a>         Object property;
<a name="529" href="#529">529</a>         String attrName = pdesc.getName();
<a name="530" href="#530">530</a>         <strong class="jxr_keyword">try</strong> {