90 lines
3.3 KiB
Java
90 lines
3.3 KiB
Java
/**
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*
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*/
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package org.gcube.portlets.gcubeckan.gcubeckandatacatalog.server;
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import static org.gcube.resources.discovery.icclient.ICFactory.client;
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import static org.gcube.resources.discovery.icclient.ICFactory.queryFor;
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import java.io.Serializable;
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import java.util.List;
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import org.gcube.common.resources.gcore.GCoreEndpoint;
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import org.gcube.common.scope.api.ScopeProvider;
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import org.gcube.resources.discovery.client.api.DiscoveryClient;
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import org.gcube.resources.discovery.client.queries.api.SimpleQuery;
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import com.liferay.portal.kernel.log.Log;
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import com.liferay.portal.kernel.log.LogFactoryUtil;
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/**
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*
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* @author Francesco Mangiacrapa francesco.mangiacrapa@isti.cnr.it
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* Jun 10, 2016
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*/
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public class GcoreEndpointReader implements Serializable{
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private static final long serialVersionUID = 7631710353375893823L;
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private static final String ckanResource = "org.gcube.data.access.ckanconnector.CkanConnector";
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private static final String serviceName = "CkanConnector";
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private static final String serviceClass = "DataAccess";
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private static final Log logger = LogFactoryUtil.getLog(GcoreEndpointReader.class);
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private String ckanResourceEntyName;
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/**
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* Instantiates a new gcore endpoint reader.
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*
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* @param scope the scope
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* @throws Exception the exception
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*/
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public GcoreEndpointReader(String scope) throws Exception {
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String currentScope = ScopeProvider.instance.get();
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try{
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logger.info("set scope "+scope);
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ScopeProvider.instance.set(scope);
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SimpleQuery query = queryFor(GCoreEndpoint.class);
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query.addCondition(String.format("$resource/Profile/ServiceClass/text() eq '%s'",serviceClass));
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query.addCondition("$resource/Profile/DeploymentData/Status/text() eq 'ready'");
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query.addCondition(String.format("$resource/Profile/ServiceName/text() eq '%s'",serviceName));
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query.addCondition(String.format("$resource/Scopes/Scope/text()[.='%s']", scope)); // i.e. check the resource contains among the scopes this one
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query.setResult("$resource/Profile/AccessPoint/RunningInstanceInterfaces//Endpoint[@EntryName/string() eq \""+ckanResource+"\"]/text()");
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logger.debug("submitting quey "+query.toString());
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DiscoveryClient<String> client = client();
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List<String> endpoints = client.submit(query);
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if (endpoints == null || endpoints.isEmpty())
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throw new Exception("Cannot retrieve the GCoreEndpoint serviceName: "+serviceName +", serviceClass: " +serviceClass +", in scope: "+scope);
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logger.debug("Found " + endpoints.size() + " matching resources");
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this.ckanResourceEntyName = endpoints.get(0);
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if(ckanResourceEntyName==null)
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throw new Exception("Endpoint:"+ckanResource+", is null for serviceName: "+serviceName +", serviceClass: " +serviceClass +", in scope: "+scope);
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logger.info("found entyname "+ckanResourceEntyName+" for ckanResource: "+ckanResource);
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}catch(Exception e){
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String error = "An error occurred during GCoreEndpoint discovery, serviceName: "+serviceName +", serviceClass: " +serviceClass +", in scope: "+scope +".";
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logger.error(error, e);
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throw new Exception(error);
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}finally{
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logger.info("scope provider reset");
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ScopeProvider.instance.set(currentScope);
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}
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}
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/**
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* @return the ckanResourceEntyName
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*/
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public String getCkanResourceEntyName() {
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return ckanResourceEntyName;
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}
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}
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