113 lines
4.4 KiB
Java
113 lines
4.4 KiB
Java
/**
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*
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*/
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package org.gcube.datatransfer.resolver.services;
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import java.net.URI;
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import java.util.concurrent.ExecutionException;
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import javax.servlet.http.HttpServletRequest;
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import javax.ws.rs.GET;
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import javax.ws.rs.Path;
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import javax.ws.rs.PathParam;
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import javax.ws.rs.WebApplicationException;
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import javax.ws.rs.core.Context;
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import javax.ws.rs.core.Response;
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import org.gcube.common.scope.impl.ScopeBean;
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import org.gcube.datatransfer.resolver.applicationprofile.ApplicationProfileReader;
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import org.gcube.datatransfer.resolver.caches.LoadingMapOfScopeCache;
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import org.gcube.datatransfer.resolver.services.error.ExceptionManager;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import com.google.common.cache.CacheLoader.InvalidCacheLoadException;
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/**
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* The KnimeGetResolver provides a method to get the Knime URLs (that are simply
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* URLs) by which is possible to invoke the KNIME Model Simulation Application.
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*
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* See more at
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* https://gcube.wiki.gcube-system.org/gcube/URI_Resolver#KNIME_Resolver
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*
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* @author Francesco Mangiacrapa francesco.mangiacrapa@isti.cnr.it Dec 13, 2018
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*/
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@Path("knime")
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public class KnimeGetResolver {
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private static Logger logger = LoggerFactory.getLogger(KnimeGetResolver.class);
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private static String helpURI = "https://gcube.wiki.gcube-system.org/gcube/URI_Resolver#KNIME_Resolver";
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private static final String ORG_GCUBE_PORTLETS_USER_KNIMEMODELSIMULATION_MANAGER_SERVICE_IMPL = "org.gcube.portlets.user.model-simulation-configuration.server.KnimeModelSimulationManagerServiceImpl";
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private static final String APPLICATION_PROFILE = "ApplicationProfile";
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private static final String KNIME_EXECUTOR_APPLICATION = null;
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/**
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* Resolve knime url.
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*
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* @param req the req
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* @param vreName the vre name
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* @return the response
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*/
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@GET
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@Path("/get/{vreName}")
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public Response resolveKnimeURL(@Context HttpServletRequest req, @PathParam("vreName") String vreName) {
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logger.info(this.getClass().getSimpleName() + " GET starts...");
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try {
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if (vreName == null || vreName.isEmpty()) {
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logger.error("The path parameter 'vreName' not found or empty in the path");
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throw ExceptionManager.badRequestException(req, "Mandatory path parameter 'vreName' not found or empty",
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this.getClass(), helpURI);
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}
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ScopeBean scopeBean = null;
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try {
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scopeBean = LoadingMapOfScopeCache.get(vreName);
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} catch (ExecutionException | InvalidCacheLoadException e) {
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logger.error("Error on getting the fullscope from cache for vreName " + vreName, e);
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throw ExceptionManager.wrongParameterException(req,
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"Error on getting full scope for the VRE name " + vreName
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+ ". Is it registered as VRE in the D4Science Infrastructure System?",
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this.getClass(), helpURI);
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}
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ApplicationProfileReader reader = null;
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String fullScope = scopeBean.toString();
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try {
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reader = new ApplicationProfileReader(fullScope, APPLICATION_PROFILE,
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ORG_GCUBE_PORTLETS_USER_KNIMEMODELSIMULATION_MANAGER_SERVICE_IMPL, false);
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} catch (Exception e) {
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logger.error("Error on reading the " + APPLICATION_PROFILE + " with APPID: "
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+ ORG_GCUBE_PORTLETS_USER_KNIMEMODELSIMULATION_MANAGER_SERVICE_IMPL, e);
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throw ExceptionManager.internalErrorException(req, "Error on reading the Application Profile for the "
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+ KNIME_EXECUTOR_APPLICATION + ". Please contact the support", this.getClass(), helpURI);
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}
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// READ THE KNIME URL PORTLET FROM APPLICATION PROFRILE IN THE SCOPE fullScope
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String knimeExecutorEndPoint = reader.getApplicationProfile().getUrl();
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// CHECKING THE QUERY STRING
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String queryString = req.getQueryString() != null ? req.getQueryString() : "";
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String knimeExecutorURL = String.format("%s?%s", knimeExecutorEndPoint, queryString);
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logger.info("Resolving the Knime URL with: " + knimeExecutorURL);
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return Response.seeOther(new URI(knimeExecutorURL)).build();
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} catch (Exception e) {
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if (!(e instanceof WebApplicationException)) {
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// UNEXPECTED EXCEPTION managing it as WebApplicationException
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String error = "Sorry, an error occurred on resolving the Knime URL. Please, contact the support!";
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if (e.getCause() != null)
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error += "\n\nCaused: " + e.getCause().getMessage();
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throw ExceptionManager.internalErrorException(req, error, this.getClass(), helpURI);
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}
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// ALREADY MANAGED AS WebApplicationException
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logger.error("Exception:", e);
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throw (WebApplicationException) e;
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}
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}
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}
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