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catalogue-ws/src/main/java/org/gcube/datacatalogue/catalogue/utils/GcoreEndpointReaderSNL.java

69 lines
2.5 KiB
Java

/**
*
*/
package org.gcube.datacatalogue.catalogue.utils;
import static org.gcube.resources.discovery.icclient.ICFactory.client;
import static org.gcube.resources.discovery.icclient.ICFactory.queryFor;
import java.util.List;
import org.gcube.common.resources.gcore.GCoreEndpoint;
import org.gcube.common.scope.api.ScopeProvider;
import org.gcube.resources.discovery.client.api.DiscoveryClient;
import org.gcube.resources.discovery.client.queries.api.SimpleQuery;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class GcoreEndpointReaderSNL {
private static final String resource = "jersey-servlet";
private static final String serviceName = "SocialNetworking";
private static final String serviceClass = "Portal";
private static Logger logger = LoggerFactory.getLogger(GcoreEndpointReaderSNL.class);
private String serviceBasePath;
/**
* Discover the gcore endpoint for the social networking service.
* @param scope the scope
* @throws Exception the exception
*/
public GcoreEndpointReaderSNL() throws Exception {
String currentScope = ScopeProvider.instance.get();
try{
SimpleQuery query = queryFor(GCoreEndpoint.class);
query.addCondition(String.format("$resource/Profile/ServiceClass/text() eq '%s'",serviceClass));
query.addCondition("$resource/Profile/DeploymentData/Status/text() eq 'ready'");
query.addCondition(String.format("$resource/Profile/ServiceName/text() eq '%s'",serviceName));
query.setResult("$resource/Profile/AccessPoint/RunningInstanceInterfaces//Endpoint[@EntryName/string() eq \""+resource+"\"]/text()");
DiscoveryClient<String> client = client();
List<String> endpoints = client.submit(query);
if (endpoints == null || endpoints.isEmpty())
throw new Exception("Cannot retrieve the GCoreEndpoint serviceName: "+serviceName +", serviceClass: " +serviceClass +", in scope: "+currentScope);
this.serviceBasePath = endpoints.get(0);
if(serviceBasePath==null)
throw new Exception("Endpoint:"+resource+", is null for serviceName: "+serviceName +", serviceClass: " +serviceClass +", in scope: "+currentScope);
serviceBasePath = serviceBasePath.endsWith("/") ? serviceBasePath : serviceBasePath + "/";
}catch(Exception e){
String error = "An error occurred during GCoreEndpoint discovery, serviceName: "+serviceName +", serviceClass: " +serviceClass +", in scope: "+currentScope +".";
logger.error(error, e);
throw new Exception(error);
}
}
/**
* @return the ResourceEntyName
*/
public String getServiceBasePath() {
return serviceBasePath;
}
}