Creating Indices at the VO Level

Indexing Procedure

The Indexing procedure refers to the creation of indices for the collections imported in a Virtual Organization. It consists of three steps:

• Creation of the Rowset XSLT generic resources, that transform collection data into data that can be fed to an Index.
• Creation of the Index type generic resources, that define the Index configuration.
• Definition of an IRBootstrapper job that will perform the steps required to create the Indices.

In the first two steps we create generic resources for the Rowset XSLTs and Index Types through the Resource Management portlet . You can find detailed descriptions for the Rowset data (the output of the Rowset XSLT transformation) in the following sections:

• Full Text Index Rowset
• Geo-Spatial Index Rowset
• Forward Index Rowset

You can find detailed descriptions for the Index Type definition here:

• Full Text Index Type
• Geo-Spatial Index Type
• Forward Index key-value pairs

For the third step, a definition of an IRBootstrapper job is required. You can find the details for defining such a job in the IR Bootstrapper section. The two examples that follow will clarify the three steps.

Creating a Full Text and a Forward Index for a collection with two views

In this example we will create a Full Text and a Forward Index for collection that has one view for the data in ES schema and one view for the data in DC schema. First of all let's create a generic resource for the Rowset XSLT for the collection data in ES schema

<job jobtype="IndexCollection" name="IndexEsDcCollection">
 
                  <initialization>
 
                     <assign to="%IndexCollection.input.ColName" value="European Environment Agency: Topic Reports" />
 
                     <assign to="%Create_MC_ft_index.FullTextIndexGenerationTask.IndexTypeID" value="ft_es_dc_2.0" />
 
                     <assign to="%Create_MC_ft_index.FullTextIndexGenerationTask.TransformationXSLTID" value="$BrokerXSLT_wrapperFT" />
 
                     <assign to="%Create_MC_ft_index.FullTextIndexGenerationTask.Views" value="[ 5ec68209-41f1-4c1c-9359-ff055a38d981, 55404922-12ee-4808-9cc7-ac1ab38c4a2e ]" />
 
                     <assign to="%Create_MC_ft_index.FullTextIndexGenerationTask.ViewsXSLTSIDs" value="[ $BrokerXSLT_es_anylanguage_to_ftRowset_anylanguage, $BrokerXSLT_dc_anylanguage_to_ftRowset_anylanguage ]" />
 
                     <assign to="%Create_MC_ft_index.FullTextIndexGenerationTask.IdOfIndexManagerToAppend" userInputLabel="ID of FT index management resource to append" value="%userInput" />
 
                     <assign to="%Create_MC_fwd_index.ForwardIndexGenerationTask.TransformationXSLTID" value="$BrokerXSLT_wrapperFWD" />
 
                     <assign to="%Create_MC_fwd_index.ForwardIndexGenerationTask.IndexedKeyNames" value="[ ObjectID, gDocCollectionID, gDocCollectionLang, title, creator ]" />
 
                     <assign to="%Create_MC_fwd_index.ForwardIndexGenerationTask.IndexedKeyTypes" value="[ fwd_string_string, fwd_string_string, fwd_string_string, fwd_string_string, fwd_string_string ]" />
 
                     <assign to="%Create_MC_fwd_index.ForwardIndexGenerationTask.Views" value="[ 5ec68209-41f1-4c1c-9359-ff055a38d981 ]" />
 
                     <assign to="%Create_MC_fwd_index.ForwardIndexGenerationTask.ViewsXSLTSIDs" value="[ $BrokerXSLT_es_anylanguage_to_fwRowset_anylanguage_title_creator ]" />
 
                     <assign to="%Create_MC_fwd_index.ForwardIndexGenerationTask.IdOfIndexManagerToAppend" userInputLabel="ID of FWD index management resource to append" value="%userInput" />
 
                  </initialization>
 
               </job>