38 lines
1.3 KiB
Java
38 lines
1.3 KiB
Java
package org.gcube.dataanalysis.databases.access;
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import static org.gcube.resources.discovery.icclient.ICFactory.clientFor;
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import static org.gcube.resources.discovery.icclient.ICFactory.queryFor;
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import java.util.List;
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import org.gcube.common.resources.gcore.ServiceEndpoint;
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import org.gcube.dataanalysis.databases.resources.DBResource;
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import org.gcube.resources.discovery.client.api.DiscoveryClient;
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import org.gcube.resources.discovery.client.api.DiscoveryException;
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import org.gcube.resources.discovery.client.api.InvalidResultException;
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import org.gcube.resources.discovery.client.queries.impl.XQuery;
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/** Class that allows to discover databases submitting a query to the IS.
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* It retrieves a list of DBResource object */
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public class DatabasesDiscoverer extends ResourceDiscoverer{
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public DatabasesDiscoverer(){
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}
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/** Method that performs the discovery process of database resources */
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public List<DBResource> discover() throws IllegalStateException, DiscoveryException, InvalidResultException{
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XQuery query = queryFor(ServiceEndpoint.class);
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query.addCondition("$resource/Profile/Category/text() eq 'Database'");
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DiscoveryClient<DBResource> discovery = clientFor(DBResource.class);
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List<DBResource> resources = discovery.submit(query);
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return resources;
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}
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}
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