<?xml version="1.0" encoding="iso-8859-1"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html> <head> <title>read (Metacat)</title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <link rel="stylesheet" href="../.././rdoc-style.css" type="text/css" media="screen" /> </head> <body class="standalone-code"> <pre><span class="ruby-comment cmt"># File lib/metacat.rb, line 199</span> <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">read</span>(<span class="ruby-identifier">docid</span>, <span class="ruby-identifier">options</span> = {}, <span class="ruby-operator">&</span><span class="ruby-identifier">block</span>) <span class="ruby-comment cmt"># :yields: xml or data_table fragment</span> <span class="ruby-identifier">data</span> = { <span class="ruby-value str">'action'</span> =<span class="ruby-operator">></span> <span class="ruby-value str">'read'</span>, <span class="ruby-value str">'qformat'</span> =<span class="ruby-operator">></span> <span class="ruby-value str">'xml'</span>, <span class="ruby-value str">'docid'</span> =<span class="ruby-operator">></span> <span class="ruby-identifier">docid</span> } <span class="ruby-identifier">metacat_get</span>(<span class="ruby-identifier">data</span>) <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">response</span><span class="ruby-operator">|</span> <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">response</span>.<span class="ruby-identifier">content_type</span> <span class="ruby-operator">==</span> <span class="ruby-value str">'text/xml'</span> <span class="ruby-identifier">doc</span> = <span class="ruby-constant">REXML</span><span class="ruby-operator">::</span><span class="ruby-constant">Document</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">response</span>.<span class="ruby-identifier">read_body</span>) <span class="ruby-keyword kw">if</span>(<span class="ruby-identifier">doc</span>.<span class="ruby-identifier">root</span>.<span class="ruby-identifier">name</span> <span class="ruby-operator">==</span> <span class="ruby-value str">'error'</span>) <span class="ruby-keyword kw">if</span>(<span class="ruby-identifier">doc</span>.<span class="ruby-identifier">root</span>.<span class="ruby-identifier">text</span>.<span class="ruby-identifier">match</span>(<span class="ruby-value str">'permission'</span>)) <span class="ruby-identifier">raise</span> <span class="ruby-constant">MetacatPermissionDenied</span>, <span class="ruby-identifier">doc</span>.<span class="ruby-identifier">root</span>.<span class="ruby-identifier">text</span> <span class="ruby-keyword kw">elsif</span>(<span class="ruby-identifier">doc</span>.<span class="ruby-identifier">root</span>.<span class="ruby-identifier">text</span>.<span class="ruby-identifier">match</span>(<span class="ruby-value str">'does not exist'</span>)) <span class="ruby-comment cmt"># Nothing found, return nil</span> <span class="ruby-keyword kw">return</span> <span class="ruby-keyword kw">nil</span> <span class="ruby-keyword kw">else</span> <span class="ruby-identifier">raise</span> <span class="ruby-value str">'Unrecognized response from metacat: '</span><span class="ruby-operator">+</span><span class="ruby-identifier">doc</span>.<span class="ruby-identifier">root</span>.<span class="ruby-identifier">text</span> <span class="ruby-keyword kw">end</span> <span class="ruby-keyword kw">else</span> <span class="ruby-comment cmt"># xml data</span> <span class="ruby-keyword kw">return</span> <span class="ruby-identifier">doc</span> <span class="ruby-keyword kw">end</span> <span class="ruby-keyword kw">else</span> <span class="ruby-comment cmt"># probably a data table</span> <span class="ruby-keyword kw">if</span> (<span class="ruby-identifier">options</span>.<span class="ruby-identifier">has_key?</span>(<span class="ruby-value str">'only_eml'</span>) <span class="ruby-operator">&&</span> <span class="ruby-identifier">options</span>[<span class="ruby-value str">'only_eml'</span>] <span class="ruby-operator">==</span> <span class="ruby-keyword kw">true</span>) <span class="ruby-keyword kw">return</span> <span class="ruby-keyword kw">nil</span> <span class="ruby-keyword kw">else</span> <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">block_given?</span> <span class="ruby-identifier">response</span>.<span class="ruby-identifier">read_body</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">buffer</span><span class="ruby-operator">|</span> <span class="ruby-keyword kw">yield</span> <span class="ruby-identifier">buffer</span> } <span class="ruby-keyword kw">else</span> <span class="ruby-identifier">response</span>.<span class="ruby-identifier">read_body</span> <span class="ruby-keyword kw">end</span> <span class="ruby-keyword kw">end</span> <span class="ruby-keyword kw">end</span> <span class="ruby-keyword kw">end</span> <span class="ruby-keyword kw">end</span></pre> </body> </html>