xmlsettingshandler.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="427" href="#427">427</a>                     &amp;&amp; isOverride(possibleSubDomains[i])) {
<a name="428" href="#428">428</a>                     <em class="comment">// Found one!</em>
<a name="429" href="#429">429</a>                     confirmedSubDomains.add(possibleSubDomains[i].getName());
<a name="430" href="#430">430</a>                 }
<a name="431" href="#431">431</a>             }
<a name="432" href="#432">432</a>         }
<a name="433" href="#433">433</a>         <strong>return</strong> confirmedSubDomains;
<a name="434" href="#434">434</a>     }
<a name="435" href="#435">435</a> 
<a name="436" href="#436">436</a>     <em>/**<em>*</em></em>
<a name="437" href="#437">437</a> <em>     * Checks if a file is a a 'per host' override or if it's a directory if it</em>
<a name="438" href="#438">438</a> <em>     * or it's subdirectories  contains a 'per host' override file.</em>
<a name="439" href="#439">439</a> <em>     * @param f The file or directory to check</em>
<a name="440" href="#440">440</a> <em>     * @return True if the file is an override or it's a directory that contains</em>
<a name="441" href="#441">441</a> <em>     *         such a file.</em>
<a name="442" href="#442">442</a> <em>     */</em>
<a name="443" href="#443">443</a>     <strong>private</strong> <strong>boolean</strong> isOverride(File f){
<a name="444" href="#444">444</a>         <strong>if</strong>(f.isDirectory()){
<a name="445" href="#445">445</a>             <em class="comment">// Have a directory, check it's contents.</em>
<a name="446" href="#446">446</a>             File[] subs = f.listFiles();
<a name="447" href="#447">447</a>             <strong>for</strong>(<strong>int</strong> i=0 ; i &lt; subs.length ; i++){
<a name="448" href="#448">448</a>                 <strong>if</strong>(isOverride(subs[i])){
<a name="449" href="#449">449</a>                     <em class="comment">// Found one. Can stop looking.</em>
<a name="450" href="#450">450</a>                     <strong>return</strong> <strong>true</strong>;
<a name="451" href="#451">451</a>                 }
<a name="452" href="#452">452</a>             }
<a name="453" href="#453">453</a>         } <strong>else</strong> <strong>if</strong> (f.getName().equals(
<a name="454" href="#454">454</a>                 settingsFilename + <span class="string">"."</span> + settingsFilenameSuffix)) {
<a name="455" href="#455">455</a>             <em class="comment">// This is an override file (or sure looks like one in any case).</em>
<a name="456" href="#456">456</a>             <strong>return</strong> <strong>true</strong>;
<a name="457" href="#457">457</a>         }
<a name="458" href="#458">458</a>         <em class="comment">// Didn't find an override.</em>
<a name="459" href="#459">459</a>         <strong>return</strong> false;
<a name="460" href="#460">460</a>     }
<a name="461" href="#461">461</a> 
<a name="462" href="#462">462</a>     <em>/**<em>* Delete a settings object from persistent storage.</em></em>
<a name="463" href="#463">463</a> <em>     *</em>
<a name="464" href="#464">464</a> <em>     * Deletes the file represented by the submitted settings object. All empty</em>
<a name="465" href="#465">465</a> <em>     * directories that are parents to the files path are also deleted.</em>
<a name="466" href="#466">466</a> <em>     *</em>
<a name="467" href="#467">467</a> <em>     * @param settings the settings object to delete.</em>
<a name="468" href="#468">468</a> <em>     */</em>
<a name="469" href="#469">469</a>     <strong>public</strong> <strong>void</strong> deleteSettingsObject(<a href="../../../../org/archive/crawler/settings/CrawlerSettings.html">CrawlerSettings</a> settings) {
<a name="470" href="#470">470</a>         <strong>super</strong>.deleteSettingsObject(settings);
<a name="471" href="#471">471</a>         File settingsDirectory = getSettingsDirectory();
<a name="472" href="#472">472</a>         File settingsFile = settingsToFilename(settings);
<a name="473" href="#473">473</a> 
<a name="474" href="#474">474</a>         settingsFile.delete();
<a name="475" href="#475">475</a>         settingsFile = settingsFile.getParentFile();
<a name="476" href="#476">476</a>         <strong>while</strong> (settingsFile.isDirectory() &amp;&amp; settingsFile.list().length == 0
<a name="477" href="#477">477</a>                 &amp;&amp; !settingsFile.equals(settingsDirectory)) {
<a name="478" href="#478">478</a>             settingsFile.delete();
<a name="479" href="#479">479</a>             settingsFile = settingsFile.getParentFile();
<a name="480" href="#480">480</a>         }
<a name="481" href="#481">481</a>     }
<a name="482" href="#482">482</a> 
<a name="483" href="#483">483</a>     <em class="comment">/*<em class="comment"> (non-Javadoc)</em></em>
<a name="484" href="#484">484</a> <em class="comment">     * @see org.archive.crawler.settings.SettingsHandler#getListOfAllFiles()</em>
<a name="485" href="#485">485</a> <em class="comment">     */</em>
<a name="486" href="#486">486</a>     <strong>public</strong> List getListOfAllFiles() {
<a name="487" href="#487">487</a>         ArrayList list = <strong>new</strong> ArrayList();
<a name="488" href="#488">488</a>         <em class="comment">// Add CrawlOrder.</em>
<a name="489" href="#489">489</a>         list.add(getOrderFile().getAbsolutePath());
<a name="490" href="#490">490</a>         <em class="comment">// Iterate through the entire override hierarchy</em>
<a name="491" href="#491">491</a>         <strong>if</strong> (getSettingsDirectory().exists()) {
<a name="492" href="#492">492</a>             recursiveFindFiles(getSettingsDirectory(),list);
<a name="493" href="#493">493</a>         }
<a name="494" href="#494">494</a>         <em class="comment">// Get files used by settings modules.</em>
<a name="495" href="#495">495</a>         recursiveFindSecondaryFiles(getOrder(),list);
<a name="496" href="#496">496</a>         <strong>return</strong> list;
<a name="497" href="#497">497</a>     }
<a name="498" href="#498">498</a> 
<a name="499" href="#499">499</a>     <em>/**<em>*</em></em>
<a name="500" href="#500">500</a> <em>     * Add any files being used by any of the Modules making up the settings to</em>
<a name="501" href="#501">501</a> <em>     * the list.</em>
<a name="502" href="#502">502</a> <em>     *</em>
<a name="503" href="#503">503</a> <em>     * @param mbean A ModuleType to interrogate for files. Any child modules</em>
<a name="504" href="#504">504</a> <em>     *           will be recursively interrogated.</em>
<a name="505" href="#505">505</a> <em>     * @param list The list to add found files to.</em>
<a name="506" href="#506">506</a> <em>     */</em>
<a name="507" href="#507">507</a>     <strong>private</strong> <strong>void</strong> recursiveFindSecondaryFiles(<a href="../../../../org/archive/crawler/settings/ComplexType.html">ComplexType</a> mbean, ArrayList list) {
<a name="508" href="#508">508</a>         MBeanInfo info = mbean.getMBeanInfo();
<a name="509" href="#509">509</a>         MBeanAttributeInfo[] a = info.getAttributes();
<a name="510" href="#510">510</a>         <em class="comment">// Interrogate the current module</em>
<a name="511" href="#511">511</a>         <strong>if</strong>(mbean instanceof <a href="../../../../org/archive/crawler/settings/ModuleType.html">ModuleType</a>){
<a name="512" href="#512">512</a>             ((<a href="../../../../org/archive/crawler/settings/ModuleType.html">ModuleType</a>)mbean).listUsedFiles(list);
<a name="513" href="#513">513</a>         }
<a name="514" href="#514">514</a> 
<a name="515" href="#515">515</a>         <em class="comment">// Recursively interrogate all sub modules that are of ModuleType</em>
<a name="516" href="#516">516</a>         <strong>for</strong>(<strong>int</strong> n=0; n&lt;a.length; n++) {
<a name="517" href="#517">517</a>             <strong>if</strong>(a[n] == <strong>null</strong>) {
<a name="518" href="#518">518</a>                 <em class="comment">// Error null attribute.</em>
<a name="519" href="#519">519</a>             } <strong>else</strong> {
<a name="520" href="#520">520</a>                 <a href="../../../../org/archive/crawler/settings/ModuleAttributeInfo.html">ModuleAttributeInfo</a> att = (ModuleAttributeInfo)a[n];
<a name="521" href="#521">521</a>                 Object currentAttribute;
<a name="522" href="#522">522</a>                 <strong>try</strong> {
<a name="523" href="#523">523</a>                     currentAttribute = mbean.getAttribute(att.getName());
<a name="524" href="#524">524</a>                     <strong>if</strong>(currentAttribute instanceof <a href="../../../../org/archive/crawler/settings/ComplexType.html">ComplexType</a>) {
<a name="525" href="#525">525</a>                         recursiveFindSecondaryFiles((ComplexType)currentAttribute,list);
<a name="526" href="#526">526</a>                     }
<a name="527" href="#527">527</a>                 } <strong>catch</strong> (AttributeNotFoundException e) {
<a name="528" href="#528">528</a>                     <em class="comment">// TODO Auto-generated catch block</em>
<a name="529" href="#529">529</a>                     e.printStackTrace();
<a name="530" href="#530">530</a>                 } <strong>catch</strong> (MBeanException e) {
<a name="531" href="#531">531</a>                     <em class="comment">// TODO Auto-generated catch block</em>
<a name="532" href="#532">532</a>                     e.printStackTrace();
<a name="533" href="#533">533</a>                 } <strong>catch</strong> (ReflectionException e) {
<a name="534" href="#534">534</a>                     <em class="comment">// TODO Auto-generated catch block</em>
<a name="535" href="#535">535</a>                     e.printStackTrace();
<a name="536" href="#536">536</a>                 }
<a name="537" href="#537">537</a>             }
<a name="538" href="#538">538</a>         }
<a name="539" href="#539">539</a>     }
<a name="540" href="#540">540</a> 
<a name="541" href="#541">541</a>     <em>/**<em>*</em></em>
<a name="542" href="#542">542</a> <em>     * Starting at the specific directory this method will iterate through all</em>
<a name="543" href="#543">543</a> <em>     * sub directories and add each file (as absolute name, with path as a</em>
<a name="544" href="#544">544</a> <em>     * string) to the provided ArrayList. Any file found under the settings</em>
<a name="545" href="#545">545</a> <em>     * directory with the proper suffix will be considered valid and added to</em>
<a name="546" href="#546">546</a> <em>     * the list.</em>
<a name="547" href="#547">547</a> <em>     * @param dir Starting directory</em>
<a name="548" href="#548">548</a> <em>     * @param list The list to add to</em>
<a name="549" href="#549">549</a> <em>     */</em>
<a name="550" href="#550">550</a>     <strong>private</strong> <strong>void</strong> recursiveFindFiles(File dir, ArrayList list){
<a name="551" href="#551">551</a>         File[] subs = dir.listFiles();
<a name="552" href="#552">552</a>         <strong>if</strong> (subs != <strong>null</strong>) {
<a name="553" href="#553">553</a>             <strong>for</strong>(<strong>int</strong> i=0 ; i &lt; subs.length ; i++){
<a name="554" href="#554">554</a>                 <strong>if</strong>(subs[i].isDirectory()){
<a name="555" href="#555">555</a>                     recursiveFindFiles(subs[i],list);
<a name="556" href="#556">556</a>                 } <strong>else</strong> {
<a name="557" href="#557">557</a>                     <strong>if</strong>(subs[i].getName().endsWith(settingsFilenameSuffix)){
<a name="558" href="#558">558</a>                         <em class="comment">// Add it to list</em>
<a name="559" href="#559">559</a>                         list.add(subs[i].getAbsolutePath());
<a name="560" href="#560">560</a>                     }
<a name="561" href="#561">561</a>                 }
<a name="562" href="#562">562</a>             }
<a name="563" href="#563">563</a>         }
<a name="564" href="#564">564</a>     }
<a name="565" href="#565">565</a> }
</pre>
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