jobconfigureutils.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="406" href="#406">406</a>                                     + <span class="string">"?message=Profile modified"</span>);
<a name="407" href="#407">407</a>                         } <strong>else</strong> {
<a name="408" href="#408">408</a>                             response.sendRedirect(redirectBasePath
<a name="409" href="#409">409</a>                                     + <span class="string">"?message=Job modified"</span>);
<a name="410" href="#410">410</a>                         }
<a name="411" href="#411">411</a>                     }
<a name="412" href="#412">412</a>                 }
<a name="413" href="#413">413</a>             } <strong>else</strong> <strong>if</strong> (action.equals(GOTO)) {
<a name="414" href="#414">414</a>                 <em class="comment">// Goto another page of the job/profile settings</em>
<a name="415" href="#415">415</a>                 String overParam = ((currDomain != <strong>null</strong> &amp;&amp; currDomain
<a name="416" href="#416">416</a>                         .length() > 0) ? <span class="string">"&amp;currDomain="</span> + currDomain : <span class="string">""</span>);
<a name="417" href="#417">417</a>                 String refParam = 
<a name="418" href="#418">418</a>                     ((reference != <strong>null</strong> &amp;&amp; reference.length() > 0) 
<a name="419" href="#419">419</a>                             ? <span class="string">"&amp;reference="</span> + reference
<a name="420" href="#420">420</a>                             : <span class="string">""</span>);
<a name="421" href="#421">421</a>                 response.sendRedirect(request.getParameter(SUBACTION) +
<a name="422" href="#422">422</a>                     overParam + refParam);
<a name="423" href="#423">423</a>             }
<a name="424" href="#424">424</a>         }
<a name="425" href="#425">425</a>         <strong>return</strong> theJob;
<a name="426" href="#426">426</a>     }
<a name="427" href="#427">427</a>     
<a name="428" href="#428">428</a>     <em>/**<em>*</em></em>
<a name="429" href="#429">429</a> <em>     * Print complete seeds list on passed in PrintWriter.</em>
<a name="430" href="#430">430</a> <em>     * @param hndlr Current handler.</em>
<a name="431" href="#431">431</a> <em>     * @param payload What to write out.</em>
<a name="432" href="#432">432</a> <em>     * @throws AttributeNotFoundException</em>
<a name="433" href="#433">433</a> <em>     * @throws MBeanException</em>
<a name="434" href="#434">434</a> <em>     * @throws ReflectionException</em>
<a name="435" href="#435">435</a> <em>     * @throws IOException</em>
<a name="436" href="#436">436</a> <em>     * @throws IOException</em>
<a name="437" href="#437">437</a> <em>     */</em>
<a name="438" href="#438">438</a>     <strong>public</strong> <strong>static</strong> <strong>void</strong> printOutSeeds(<a href="../../../../../org/archive/crawler/settings/SettingsHandler.html">SettingsHandler</a> hndlr, String payload)
<a name="439" href="#439">439</a>     throws AttributeNotFoundException, MBeanException, ReflectionException,
<a name="440" href="#440">440</a>     IOException {
<a name="441" href="#441">441</a>         File seedfile = getSeedFile(hndlr);
<a name="442" href="#442">442</a>         writeReader(<strong>new</strong> StringReader(payload),
<a name="443" href="#443">443</a>             <strong>new</strong> BufferedWriter(<strong>new</strong> FileWriter(seedfile)));
<a name="444" href="#444">444</a>     }
<a name="445" href="#445">445</a>     
<a name="446" href="#446">446</a>     <em>/**<em>*</em></em>
<a name="447" href="#447">447</a> <em>     * Print complete seeds list on passed in PrintWriter.</em>
<a name="448" href="#448">448</a> <em>     * @param hndlr Current handler.</em>
<a name="449" href="#449">449</a> <em>     * @param out Writer to write out all seeds to.</em>
<a name="450" href="#450">450</a> <em>     * @throws ReflectionException</em>
<a name="451" href="#451">451</a> <em>     * @throws MBeanException</em>
<a name="452" href="#452">452</a> <em>     * @throws AttributeNotFoundException</em>
<a name="453" href="#453">453</a> <em>     * @throws IOException</em>
<a name="454" href="#454">454</a> <em>     */</em>
<a name="455" href="#455">455</a>     <strong>public</strong> <strong>static</strong> <strong>void</strong> printOutSeeds(<a href="../../../../../org/archive/crawler/settings/SettingsHandler.html">SettingsHandler</a> hndlr, Writer out)
<a name="456" href="#456">456</a>     throws AttributeNotFoundException, MBeanException, ReflectionException,
<a name="457" href="#457">457</a>             IOException {
<a name="458" href="#458">458</a>         <em class="comment">// getSeedStream looks for seeds on disk and on classpath.</em>
<a name="459" href="#459">459</a>         InputStream is = getSeedStream(hndlr);
<a name="460" href="#460">460</a>         writeReader(<strong>new</strong> BufferedReader(<strong>new</strong> InputStreamReader(is)), out);
<a name="461" href="#461">461</a>     }
<a name="462" href="#462">462</a>     
<a name="463" href="#463">463</a>     <em>/**<em>*</em></em>
<a name="464" href="#464">464</a> <em>     * Test whether seeds file is of a size that's reasonable</em>
<a name="465" href="#465">465</a> <em>     * to edit in an HTML textarea. </em>
<a name="466" href="#466">466</a> <em>     * @param h current settingsHandler</em>
<a name="467" href="#467">467</a> <em>     * @return true if seeds size is manageable, false otherwise</em>
<a name="468" href="#468">468</a> <em>     * @throws AttributeNotFoundException </em>
<a name="469" href="#469">469</a> <em>     * @throws MBeanException </em>
<a name="470" href="#470">470</a> <em>     * @throws ReflectionException </em>
<a name="471" href="#471">471</a> <em>     * </em>
<a name="472" href="#472">472</a> <em>     */</em>
<a name="473" href="#473">473</a>     <strong>public</strong> <strong>static</strong> <strong>boolean</strong> seedsEdittableSize(<a href="../../../../../org/archive/crawler/settings/SettingsHandler.html">SettingsHandler</a> h)
<a name="474" href="#474">474</a>             throws AttributeNotFoundException, MBeanException,
<a name="475" href="#475">475</a>             ReflectionException {
<a name="476" href="#476">476</a>         <strong>return</strong> getSeedFile(h).length() &lt;= (32 * 1024); <em class="comment">// 32K</em>
<a name="477" href="#477">477</a>     }
<a name="478" href="#478">478</a>     <em>/**<em>*</em></em>
<a name="479" href="#479">479</a> <em>     * @param hndlr Settings handler.</em>
<a name="480" href="#480">480</a> <em>     * @return Seeds file.</em>
<a name="481" href="#481">481</a> <em>     * @throws ReflectionException</em>
<a name="482" href="#482">482</a> <em>     * @throws MBeanException</em>
<a name="483" href="#483">483</a> <em>     * @throws AttributeNotFoundException</em>
<a name="484" href="#484">484</a> <em>     */</em>
<a name="485" href="#485">485</a>     <strong>protected</strong> <strong>static</strong> File getSeedFile(<a href="../../../../../org/archive/crawler/settings/SettingsHandler.html">SettingsHandler</a> hndlr)
<a name="486" href="#486">486</a>     throws AttributeNotFoundException, MBeanException, ReflectionException {
<a name="487" href="#487">487</a>         String seedsFileStr = (String)((ComplexType)hndlr.getOrder().
<a name="488" href="#488">488</a>             getAttribute(<span class="string">"scope"</span>)).getAttribute(<span class="string">"seedsfile"</span>);
<a name="489" href="#489">489</a>         <strong>return</strong> hndlr.getPathRelativeToWorkingDirectory(seedsFileStr);
<a name="490" href="#490">490</a>     }
<a name="491" href="#491">491</a>     
<a name="492" href="#492">492</a>     <em>/**<em>*</em></em>
<a name="493" href="#493">493</a> <em>     * Return seeds as a stream.</em>
<a name="494" href="#494">494</a> <em>     * This method will work for case where seeds are on disk or on classpath.</em>
<a name="495" href="#495">495</a> <em>     * @param hndlr SettingsHandler.  Used to find seeds.txt file.</em>
<a name="496" href="#496">496</a> <em>     * @return InputStream on current seeds file.</em>
<a name="497" href="#497">497</a> <em>     * @throws IOException</em>
<a name="498" href="#498">498</a> <em>     * @throws ReflectionException</em>
<a name="499" href="#499">499</a> <em>     * @throws MBeanException</em>
<a name="500" href="#500">500</a> <em>     * @throws AttributeNotFoundException</em>
<a name="501" href="#501">501</a> <em>     */</em>
<a name="502" href="#502">502</a>     <strong>protected</strong> <strong>static</strong> InputStream getSeedStream(<a href="../../../../../org/archive/crawler/settings/SettingsHandler.html">SettingsHandler</a> hndlr)
<a name="503" href="#503">503</a>     throws IOException, AttributeNotFoundException, MBeanException,
<a name="504" href="#504">504</a>             ReflectionException {
<a name="505" href="#505">505</a>         InputStream is = <strong>null</strong>;
<a name="506" href="#506">506</a>         File seedFile = getSeedFile(hndlr);
<a name="507" href="#507">507</a>         <strong>if</strong> (!seedFile.exists()) {
<a name="508" href="#508">508</a>             <em class="comment">// Is the file on the CLASSPATH?</em>
<a name="509" href="#509">509</a>             is = SettingsHandler.<strong>class</strong>.
<a name="510" href="#510">510</a>                 getResourceAsStream(IoUtils.getClasspathPath(seedFile));
<a name="511" href="#511">511</a>         } <strong>else</strong> <strong>if</strong>(seedFile.canRead()) {
<a name="512" href="#512">512</a>             is = <strong>new</strong> FileInputStream(seedFile);
<a name="513" href="#513">513</a>         }
<a name="514" href="#514">514</a>         <strong>if</strong> (is == <strong>null</strong>) {
<a name="515" href="#515">515</a>             <strong>throw</strong> <strong>new</strong> IOException(seedFile + <span class="string">" does not"</span> +
<a name="516" href="#516">516</a>             <span class="string">" exist -- neither on disk nor on CLASSPATH -- or is not"</span> +
<a name="517" href="#517">517</a>             <span class="string">" readable."</span>);
<a name="518" href="#518">518</a>         }
<a name="519" href="#519">519</a>         <strong>return</strong> is;
<a name="520" href="#520">520</a>     }
<a name="521" href="#521">521</a>     
<a name="522" href="#522">522</a>     <em>/**<em>*</em></em>
<a name="523" href="#523">523</a> <em>     * Print complete seeds list on passed in PrintWriter.</em>
<a name="524" href="#524">524</a> <em>     * @param reader File to read seeds from.</em>
<a name="525" href="#525">525</a> <em>     * @param out Writer to write out all seeds to.</em>
<a name="526" href="#526">526</a> <em>     * @throws IOException</em>
<a name="527" href="#527">527</a> <em>     */</em>
<a name="528" href="#528">528</a>     <strong>protected</strong> <strong>static</strong> <strong>void</strong> writeReader(Reader reader, Writer out)
<a name="529" href="#529">529</a>     throws IOException {
<a name="530" href="#530">530</a>         <strong>final</strong> <strong>int</strong> bufferSize = 1024 * 4;
<a name="531" href="#531">531</a>         <strong>char</strong> [] buffer = <strong>new</strong> <strong>char</strong>[bufferSize];
<a name="532" href="#532">532</a>         <strong>int</strong> read = -1;
<a name="533" href="#533">533</a>         <strong>while</strong> ((read = reader.read(buffer, 0, bufferSize)) != -1) {
<a name="534" href="#534">534</a>             out.write(buffer, 0, read);
<a name="535" href="#535">535</a>         }
<a name="536" href="#536">536</a>         out.flush();
<a name="537" href="#537">537</a>     }
<a name="538" href="#538">538</a> }
</pre>
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