Revision 2311
Added by Matt Jones about 20 years ago
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and searching. |
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<P> <img alt="Structural diagram of Metacat architecture" src="metacat.gif"> |
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</p> |
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<p> |
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Metacat provides several means of access for communicating with the |
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server to access and submit metadata and data. First, users can |
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access the flexible web user interface. Second, the servlet can be |
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queried using basic HTML forms. Third, a |
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<a href="./clientapi.html">client API</a> exists for |
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writing software for accessing the server's contents. |
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</p> |
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<p> |
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When accessing the servlet interface either through 'GET' or 'POST' |
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HTTP requests, the request is directed to the appropriate handler based |
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on an 'action' parameter in the request. For example, using the |
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parameter 'action=getversion' one could construct an HTTP GET |
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request to retrive the Metacat version string:<br> |
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<code>http://some.metacat.host/context/metacat?action=getversion</code> |
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</p> |
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<p> |
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The complete list of "actions" which can be used in request to Metacat |
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along with the additional parameters associated with each action are |
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as follows. |
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</p> |
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<p> Primary actions for the most important features:<br> |
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<ul> |
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<li><code>action=login</code> |
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<ul> |
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<li><code>username</code></li> |
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<li><code>password</code></li> |
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</ul> |
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</li> |
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<li><code>action=logout</code> |
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</li> |
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<li><code>action=query</code> |
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<ul> |
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<li><code>meta_file_id</code></li> |
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<li><code>returndoctype</code></li> |
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<li><code>filterdoctype</code></li> |
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<li><code>returnfield</code></li> |
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<li><code>owner</code></li> |
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<li><code>site</code></li> |
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<li><code>operator</code></li> |
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<li><code>casesensitive</code></li> |
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<li><code>searchmode</code></li> |
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<li><code>anyfield</code></li> |
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<li><code>sessionid</code></li> |
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<li>Any other parameter passed in will be interpreted as a query |
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term unless it is listed in the 'query.ignored.params' |
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property in metacat.properties</li> |
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</ul> |
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</li> |
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<li><code>action=squery</code> |
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<ul> |
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<li><code>query</code></li> |
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<li><code>qformat</code></li> |
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</ul> |
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</li> |
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<li><code>action=read</code> |
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<ul> |
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<li><code>docid</code></li> |
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<li><code>qformat</code></li> |
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</ul> |
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</li> |
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<li><code>action=insert</code> |
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<ul> |
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<li><code>docid</code></li> |
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<li><code>doctext</code></li> |
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<li><code>dtdtext</code></li> |
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</ul> |
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</li> |
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<li><code>action=update</code> |
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<ul> |
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<li><code>docid</code></li> |
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<li><code>doctext</code></li> |
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<li><code>dtdtext</code></li> |
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</ul> |
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</li> |
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<li><code>action=delete</code> |
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<ul> |
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<li><code>docid</code></li> |
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</ul> |
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</li> |
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</ul> |
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Actions for less important features:<br> |
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<ul> |
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<li><code>action=export</code> |
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<ul> |
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<li><code>docid</code></li> |
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</ul> |
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</li> |
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<li><code>action=readinlinedata</code> |
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<ul> |
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<li><code>inlinedataid</code></li> |
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</ul> |
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</li> |
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<li><code>action=validate</code> |
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<ul> |
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<li><code>valtext</code></li> |
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<li><code>docid</code></li> |
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</ul> |
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</li> |
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<li><code>action=setaccess</code> |
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<ul> |
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<li><code>docid</code></li> |
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<li><code>principal</code></li> |
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<li><code>permission</code></li> |
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<li><code>permType</code></li> |
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<li><code>permOrder</code></li> |
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<li><code>principal</code></li> |
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</ul> |
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</li> |
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<li><code>action=getaccesscontrol</code> |
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<ul> |
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<li><code>docid</code></li> |
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</ul> |
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</li> |
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<li><code>action=getprincipals</code> |
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</li> |
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<li><code>action=getdoctypes</code> |
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</li> |
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<li><code>action=getdtdschema</code> |
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<ul> |
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<li><code>doctype</code></li> |
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</ul> |
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</li> |
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<li><code>action=getlastdocid</code> |
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<ul> |
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<li><code>scope</code></li> |
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<li><code>username</code></li> |
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</ul> |
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</li> |
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<li><code>action=getrevisionanddoctype</code> |
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<ul> |
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<li><code>docid</code></li> |
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</ul> |
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</li> |
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<li><code>action=getversion</code> |
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</li> |
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<li><code>action=getlog</code> |
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<ul> |
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<li><code>ipaddress</code></li> |
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<li><code>principal</code></li> |
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<li><code>docid</code></li> |
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<li><code>event</code></li> |
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<li><code>start</code></li> |
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<li><code>end</code></li> |
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</ul> |
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</li> |
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<li><code>action=buildIndex</code> |
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<ul> |
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<li><code>docid</code></li> |
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</ul> |
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</li> |
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<li><code>action=shrink</code> |
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</li> |
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</ul> |
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</p> |
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<br> |
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<a href="./domapi.html">Back</a> | <a href="./metacattour.html">Home</a> | |
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<a href="./metacatdb.html">Next</a> |
Also available in: Unified diff
Created a list of all of the servlet actions in the documentation and listed
all reuired and optional parameters for each action. These need to be
documented but at least the list is all in one place now.