95 lines
3.4 KiB
Java
95 lines
3.4 KiB
Java
package org.gcube.datatransfer.resolver.services;
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import javax.enterprise.context.RequestScoped;
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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.core.Context;
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import javax.ws.rs.core.Response;
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import org.gcube.common.storagehub.client.StreamDescriptor;
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import org.gcube.common.storagehub.client.dsl.StorageHubClient;
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import org.gcube.datatransfer.resolver.services.error.ExceptionManager;
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import org.gcube.smartgears.utils.InnerMethodName;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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@Path("shub/{id}")
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public class StorageHubResolver {
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/**
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*
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*/
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public static final String STORAGE_HUB_ID = "id";
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private static Logger logger = LoggerFactory.getLogger(StorageHubResolver.class);
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private String help = "https://wiki.gcube-system.org/gcube/URI_Resolver#STORAGE-HUB_Resolver";
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@RequestScoped
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@PathParam(STORAGE_HUB_ID)
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String id;
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@GET
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@Path("")
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public Response download(@Context HttpServletRequest httpRequest) {
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InnerMethodName.instance.set("resolveStorageHubPublicLink");
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logger.info(this.getClass().getSimpleName()+" GET starts...");
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StorageHubClient shc = new StorageHubClient();
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//Checking mandatory parameter id
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if(id==null || id.isEmpty()){
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logger.error("Path Parameter "+STORAGE_HUB_ID+" not found");
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ExceptionManager.throwBadRequestException(httpRequest, "Missing mandatory path parameter "+STORAGE_HUB_ID, StorageHubResolver.class, help);
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}
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try{
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StreamDescriptor descriptor = shc.open(id).asFile().download();
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return Response
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.ok(descriptor.getStream())
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.header("content-disposition","attachment; filename = \""+descriptor.getFileName()+"\"").build();
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}catch(Exception e){
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logger.error("Error on getting file with "+id, e);
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String errorMsg = "Error on getting file with hub id '"+id+"'. "+e.getMessage();
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ExceptionManager.throwInternalErrorException(httpRequest, errorMsg, StorageHubResolver.class, help);
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return null;
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}
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}
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@GET
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@Path("{version}")
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public Response downloadVersion(@Context HttpServletRequest httpRequest, @PathParam("version") String version) {
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InnerMethodName.instance.set("resolveStorageHubPublicLinkWithVersion");
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logger.info(this.getClass().getSimpleName() +" downloadVersion called");
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StorageHubClient shc = new StorageHubClient();
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//Checking mandatory parameter id
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if(id==null || id.isEmpty()){
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logger.error("Path Parameter "+STORAGE_HUB_ID+" not found");
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ExceptionManager.throwBadRequestException(httpRequest, "Missing mandatory path parameter "+STORAGE_HUB_ID, StorageHubResolver.class, help);
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}
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//Checking mandatory parameter id
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if(version==null || version.isEmpty()){
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logger.error("Parameter 'version' not found");
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ExceptionManager.throwBadRequestException(httpRequest, "Missing mandatory parameter 'version'", StorageHubResolver.class, help);
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}
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try{
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StreamDescriptor descriptor = shc.open(id).asFile().downloadSpecificVersion(version);
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return Response
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.ok(descriptor.getStream())
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.header("content-disposition","attachment; filename = \""+descriptor.getFileName()+"\"").build();
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}catch(Exception e){
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String errorMsg = "Error on getting versioned file with hub id '"+id+ "' and version '"+version+"'";
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logger.error(errorMsg, e);
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ExceptionManager.throwInternalErrorException(httpRequest, errorMsg, StorageHubResolver.class, help);
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return null;
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}
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}
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}
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