credentialstore.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="147" href="#147">147</a> <em>     * @param context Pass a CrawlURI, CrawlerSettings or UURI.  Used to set</em>
<a name="148" href="#148">148</a> <em>     * context.  If null, we use global context.</em>
<a name="149" href="#149">149</a> <em>     * @return An iterator or null.</em>
<a name="150" href="#150">150</a> <em>     */</em>
<a name="151" href="#151">151</a>     <strong>public</strong> Iterator iterator(Object context) {
<a name="152" href="#152">152</a> 
<a name="153" href="#153">153</a>         <a href="../../../../org/archive/crawler/settings/MapType.html">MapType</a> m = <strong>null</strong>;
<a name="154" href="#154">154</a>         <strong>try</strong> {
<a name="155" href="#155">155</a>             m = (MapType)getAttribute(context, ATTR_CREDENTIALS);
<a name="156" href="#156">156</a>         } <strong>catch</strong> (AttributeNotFoundException e) {
<a name="157" href="#157">157</a>             logger.severe(<span class="string">"Failed get credentials: "</span> + e.getMessage());
<a name="158" href="#158">158</a>         }
<a name="159" href="#159">159</a>         <strong>return</strong> (m == <strong>null</strong>)? <strong>null</strong>: m.iterator(context);
<a name="160" href="#160">160</a>     }
<a name="161" href="#161">161</a> 
<a name="162" href="#162">162</a>     <em>/**<em>*</em></em>
<a name="163" href="#163">163</a> <em>     * @param context Pass a CrawlURI, CrawlerSettings or UURI.  Used to set</em>
<a name="164" href="#164">164</a> <em>     * context.  If null, we use global context.</em>
<a name="165" href="#165">165</a> <em>     * @param name Name to give the manufactured credential.  Should be unique</em>
<a name="166" href="#166">166</a> <em>     * else the add of the credential to the list of credentials will fail.</em>
<a name="167" href="#167">167</a> <em>     * @return Returns &lt;code>name&lt;/code>'d credential.</em>
<a name="168" href="#168">168</a> <em>     * @throws AttributeNotFoundException</em>
<a name="169" href="#169">169</a> <em>     * @throws MBeanException</em>
<a name="170" href="#170">170</a> <em>     * @throws ReflectionException</em>
<a name="171" href="#171">171</a> <em>     */</em>
<a name="172" href="#172">172</a>     <strong>public</strong> <a href="../../../../org/archive/crawler/datamodel/credential/Credential.html">Credential</a> get(Object context, String name)
<a name="173" href="#173">173</a>         throws AttributeNotFoundException, MBeanException, ReflectionException {
<a name="174" href="#174">174</a> 
<a name="175" href="#175">175</a>         <strong>return</strong> (Credential)get(context).getAttribute(name);
<a name="176" href="#176">176</a>     }
<a name="177" href="#177">177</a> 
<a name="178" href="#178">178</a>     <em>/**<em>*</em></em>
<a name="179" href="#179">179</a> <em>     * Create and add to the list a credential of the passed &lt;code>type&lt;/code></em>
<a name="180" href="#180">180</a> <em>     * giving the credential the passed &lt;code>name&lt;/code>.</em>
<a name="181" href="#181">181</a> <em>     *</em>
<a name="182" href="#182">182</a> <em>     * @param context Pass a CrawlerSettings.  Used to set</em>
<a name="183" href="#183">183</a> <em>     * context.  If null, we use global context.</em>
<a name="184" href="#184">184</a> <em>     * @param name Name to give the manufactured credential.  Should be unique</em>
<a name="185" href="#185">185</a> <em>     * else the add of the credential to the list of credentials will fail.</em>
<a name="186" href="#186">186</a> <em>     * @param type Type of credentials to get.</em>
<a name="187" href="#187">187</a> <em>     * @return The credential created and added to the list of credentials.</em>
<a name="188" href="#188">188</a> <em>     * @throws IllegalArgumentException</em>
<a name="189" href="#189">189</a> <em>     * @throws AttributeNotFoundException</em>
<a name="190" href="#190">190</a> <em>     * @throws InvocationTargetException</em>
<a name="191" href="#191">191</a> <em>     * @throws InvalidAttributeValueException</em>
<a name="192" href="#192">192</a> <em>     */</em>
<a name="193" href="#193">193</a>     <strong>public</strong> <a href="../../../../org/archive/crawler/datamodel/credential/Credential.html">Credential</a> create(<a href="../../../../org/archive/crawler/settings/CrawlerSettings.html">CrawlerSettings</a> context, String name, Class type)
<a name="194" href="#194">194</a>         throws IllegalArgumentException, InvocationTargetException,
<a name="195" href="#195">195</a>         InvalidAttributeValueException, AttributeNotFoundException {
<a name="196" href="#196">196</a> 
<a name="197" href="#197">197</a>         <a href="../../../../org/archive/crawler/datamodel/credential/Credential.html">Credential</a> result = (Credential)SettingsHandler.
<a name="198" href="#198">198</a>             instantiateModuleTypeFromClassName(name, type.getName());
<a name="199" href="#199">199</a>         <em class="comment">// Now add the just-created credential to the list.</em>
<a name="200" href="#200">200</a>         get(context).addElement(context, result);
<a name="201" href="#201">201</a>         <strong>return</strong> result;
<a name="202" href="#202">202</a>     }
<a name="203" href="#203">203</a> 
<a name="204" href="#204">204</a>     <em>/**<em>*</em></em>
<a name="205" href="#205">205</a> <em>     * Delete the credential &lt;code>name&lt;/code>.</em>
<a name="206" href="#206">206</a> <em>     *</em>
<a name="207" href="#207">207</a> <em>     * @param context Pass a CrawlerSettings.  Used to set</em>
<a name="208" href="#208">208</a> <em>     * context.  If null, we use global context.</em>
<a name="209" href="#209">209</a> <em>     * @param credential Credential to delete.</em>
<a name="210" href="#210">210</a> <em>     * @throws IllegalArgumentException</em>
<a name="211" href="#211">211</a> <em>     * @throws AttributeNotFoundException</em>
<a name="212" href="#212">212</a> <em>     */</em>
<a name="213" href="#213">213</a>     <strong>public</strong> <strong>void</strong> remove(<a href="../../../../org/archive/crawler/settings/CrawlerSettings.html">CrawlerSettings</a> context, <a href="../../../../org/archive/crawler/datamodel/credential/Credential.html">Credential</a> credential)
<a name="214" href="#214">214</a>         throws AttributeNotFoundException, IllegalArgumentException {
<a name="215" href="#215">215</a> 
<a name="216" href="#216">216</a>         remove(context, credential.getName());
<a name="217" href="#217">217</a>     }
<a name="218" href="#218">218</a> 
<a name="219" href="#219">219</a>     <em>/**<em>*</em></em>
<a name="220" href="#220">220</a> <em>     * Delete the credential &lt;code>name&lt;/code>.</em>
<a name="221" href="#221">221</a> <em>     *</em>
<a name="222" href="#222">222</a> <em>     * @param context Pass a CrawlerSettings.  Used to set</em>
<a name="223" href="#223">223</a> <em>     * context.  If null, we use global context.</em>
<a name="224" href="#224">224</a> <em>     * @param name Name of credential to delete.</em>
<a name="225" href="#225">225</a> <em>     * @throws IllegalArgumentException</em>
<a name="226" href="#226">226</a> <em>     * @throws AttributeNotFoundException</em>
<a name="227" href="#227">227</a> <em>     */</em>
<a name="228" href="#228">228</a>     <strong>public</strong> <strong>void</strong> remove(<a href="../../../../org/archive/crawler/settings/CrawlerSettings.html">CrawlerSettings</a> context, String name)
<a name="229" href="#229">229</a>         throws IllegalArgumentException, AttributeNotFoundException {
<a name="230" href="#230">230</a> 
<a name="231" href="#231">231</a>         get(context).removeElement(context, name);
<a name="232" href="#232">232</a>     }
<a name="233" href="#233">233</a> 
<a name="234" href="#234">234</a>     <em>/**<em>*</em></em>
<a name="235" href="#235">235</a> <em>     * Return set made up of all credentials of the passed</em>
<a name="236" href="#236">236</a> <em>     * &lt;code>type&lt;/code>.</em>
<a name="237" href="#237">237</a> <em>     *</em>
<a name="238" href="#238">238</a> <em>     * @param context Pass a CrawlURI or a CrawlerSettings.  Used to set</em>
<a name="239" href="#239">239</a> <em>     * context.  If null, we use global context.</em>
<a name="240" href="#240">240</a> <em>     * @param type Type of the list to return.  Type is some superclass of</em>
<a name="241" href="#241">241</a> <em>     * credentials.</em>
<a name="242" href="#242">242</a> <em>     * @return Unmodifable sublist of all elements of passed type.</em>
<a name="243" href="#243">243</a> <em>     */</em>
<a name="244" href="#244">244</a>     <strong>public</strong> Set subset(<a href="../../../../org/archive/crawler/datamodel/CrawlURI.html">CrawlURI</a> context, Class type) {
<a name="245" href="#245">245</a>         <strong>return</strong> subset(context, type, <strong>null</strong>);
<a name="246" href="#246">246</a>     }
<a name="247" href="#247">247</a> 
<a name="248" href="#248">248</a>     <em>/**<em>*</em></em>
<a name="249" href="#249">249</a> <em>     * Return set made up of all credentials of the passed</em>
<a name="250" href="#250">250</a> <em>     * &lt;code>type&lt;/code>.</em>
<a name="251" href="#251">251</a> <em>     *</em>
<a name="252" href="#252">252</a> <em>     * @param context Pass a CrawlURI or a CrawlerSettings.  Used to set</em>
<a name="253" href="#253">253</a> <em>     * context.  If null, we use global context.</em>
<a name="254" href="#254">254</a> <em>     * @param type Type of the list to return.  Type is some superclass of</em>
<a name="255" href="#255">255</a> <em>     * credentials.</em>
<a name="256" href="#256">256</a> <em>     * @param rootUri RootUri to match.  May be null.  In this case we return</em>
<a name="257" href="#257">257</a> <em>     * all.  Currently we expect the CrawlServer name to equate to root Uri.</em>
<a name="258" href="#258">258</a> <em>     * Its not.  Currently it doesn't distingush between servers of same name</em>
<a name="259" href="#259">259</a> <em>     * but different ports (e.g. http and https).</em>
<a name="260" href="#260">260</a> <em>     * @return Unmodifable sublist of all elements of passed type.</em>
<a name="261" href="#261">261</a> <em>     */</em>
<a name="262" href="#262">262</a>     <strong>public</strong> Set subset(<a href="../../../../org/archive/crawler/datamodel/CrawlURI.html">CrawlURI</a> context, Class type, String rootUri) {
<a name="263" href="#263">263</a> 
<a name="264" href="#264">264</a>         Set result = <strong>null</strong>;
<a name="265" href="#265">265</a>         Iterator i = iterator(context);
<a name="266" href="#266">266</a>         <strong>if</strong> (i != <strong>null</strong>) {
<a name="267" href="#267">267</a>             <strong>while</strong>(i.hasNext()) {
<a name="268" href="#268">268</a>                 <a href="../../../../org/archive/crawler/datamodel/credential/Credential.html">Credential</a> c = (Credential)i.next();
<a name="269" href="#269">269</a>                 <strong>if</strong> (!type.isInstance(c)) {
<a name="270" href="#270">270</a>                     <strong>continue</strong>;
<a name="271" href="#271">271</a>                 }
<a name="272" href="#272">272</a>                 <strong>if</strong> (rootUri != <strong>null</strong>) {
<a name="273" href="#273">273</a>                     String cd = <strong>null</strong>;
<a name="274" href="#274">274</a>                     <strong>try</strong> {
<a name="275" href="#275">275</a>                         cd = c.getCredentialDomain(context);
<a name="276" href="#276">276</a>                     }
<a name="277" href="#277">277</a>                     <strong>catch</strong> (AttributeNotFoundException e) {
<a name="278" href="#278">278</a>                        logger.severe(<span class="string">"Failed to get cred domain: "</span> +
<a name="279" href="#279">279</a>                            context + <span class="string">": "</span> + e.getMessage());
<a name="280" href="#280">280</a>                     }
<a name="281" href="#281">281</a>                     <strong>if</strong> (cd == <strong>null</strong>) {
<a name="282" href="#282">282</a>                         <strong>continue</strong>;
<a name="283" href="#283">283</a>                     }
<a name="284" href="#284">284</a>                     <strong>if</strong> (!rootUri.equalsIgnoreCase(cd)) {
<a name="285" href="#285">285</a>                         <strong>continue</strong>;
<a name="286" href="#286">286</a>                     }
<a name="287" href="#287">287</a>                 }
<a name="288" href="#288">288</a>                 <strong>if</strong> (result == <strong>null</strong>) {
<a name="289" href="#289">289</a>                     result = <strong>new</strong> HashSet();
<a name="290" href="#290">290</a>                 }
<a name="291" href="#291">291</a>                 result.add(c);
<a name="292" href="#292">292</a>             }
<a name="293" href="#293">293</a>         }
<a name="294" href="#294">294</a>         <strong>return</strong> result;
<a name="295" href="#295">295</a>     }
<a name="296" href="#296">296</a> }
</pre>
<hr/><div id="footer">This page was automatically generated by <a href="http://maven.apache.org/">Maven</a></div></body>
</html>