El 11/11/16 a las 10:37, Róbert Bodnár escribió:
Hi all!
May I ask if it is possible to exclude communities and collections from
being harvested by the OAI?
More exactly I want to find a way to exclude some collection when
transmitting data through OAI to other parties.
Any ideas are welcome!
Thank you very much!
B. Róbert
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Hi Róbert!
You are lucky, I implemented it some time ago. Just for one collection,
though. It's implemented as an XOAI filter (attached).
- Put RecercatFilter.java in
dspace-oai/src/main/java/org/dspace/xoai/filter/RecercatFilter.java
- Define the filter in the Filters section of xoai.xml:
<Filter id="recercatFilter">
<Class>org.dspace.xoai.filter.RecercatFilter</Class>
<Parameter key="excludeSet">
<Value>col_10459.1_371</Value>
</Parameter>
</Filter>
- Add the filter to your context:
<Context baseurl="request">
[...]
<Filter refid="recercatFilter" />
</Context>
Cheers,
Àlex
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package org.dspace.xoai.filter;
import org.apache.log4j.LogManager;
import org.apache.log4j.Logger;
import org.dspace.core.Context;
import org.dspace.xoai.data.DSpaceItem;
/**
* Excludes records from the set specified in the <code>excludeSet</code>
* parameter.
*
* IMPORTANT: it only works with the Solr backend.
*
* @author Ãlex Magaz Graça
*/
public class RecercatFilter extends DSpaceFilter {
private static Logger log = LogManager.getLogger(RecercatFilter.class);
private String _excludeSet;
private String getExcludeSet()
{
// TODO: get the exclude collection (just one for now)
if (this._excludeSet == null)
this._excludeSet = super.getParameter("excludeSet");
return _excludeSet;
}
@Override
public DatabaseFilterResult getWhere(Context context)
{
throw new UnsupportedOperationException("This method have not been "
+ "implemented, we only support the Solr backend.");
}
@Override
public boolean isShown(DSpaceItem item)
{
if ( item.getSets().contains(getExcludeSet()) )
return false;
return true;
}
@Override
public SolrFilterResult getQuery()
{
/* NOTE: look at this same method in DSpaceMetadataExistsFilter
if we ever need to filter out more than one set. */
StringBuilder cond = new StringBuilder("*:* NOT item.collections:");
cond.append( getExcludeSet() );
return new SolrFilterResult( cond.toString() );
}
}
