289 lines
9.7 KiB
Java
289 lines
9.7 KiB
Java
package org.gcube.datatransfer.resolver.services;
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import java.io.InputStream;
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import javax.annotation.Nullable;
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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.QueryParam;
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import javax.ws.rs.WebApplicationException;
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import javax.ws.rs.core.Response;
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import javax.ws.rs.core.Response.ResponseBuilder;
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import javax.ws.rs.core.Response.Status;
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import javax.ws.rs.core.StreamingOutput;
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import org.gcube.contentmanagement.blobstorage.resource.MyFile;
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import org.gcube.contentmanagement.blobstorage.service.IClient;
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import org.gcube.contentmanager.storageclient.wrapper.AccessType;
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import org.gcube.contentmanager.storageclient.wrapper.MemoryType;
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import org.gcube.contentmanager.storageclient.wrapper.StorageClient;
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import org.gcube.datatransfer.resolver.SingleFileStreamingOutput;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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/**
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* The Class StorageManager.
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*
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* @author Francesco Mangiacrapa at ISTI-CNR (francesco.mangiacrapa@isti.cnr.it)
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* @author Lucio Lelii
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*
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* Oct 19, 2018
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*/
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@Path("/")
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public class StorageManager {
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/**
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*
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*/
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protected static final String STORAGEID_RESOLVER = "storageid-resolver";
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private static final String HPROXYCHECK = "hproxycheck";
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private static final String CONTENT_TYPE = "contentType";
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private static final String FILE_NAME = "fileName";
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private static final String SMP_ID = "smp-id";
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private static final String SMP_URI = "smp-uri";
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private static final String STORAGE_ID = "storage-id";
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protected static final String VALIDATION = "validation";
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private static Logger logger = LoggerFactory.getLogger(StorageManager.class);
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/**
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* Gets the smpid.
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*
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* @param smpURI the smp id
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* @param fileName the file name
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* @param contentType the content type
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* @param validation the validation
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* @return the smpid
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*/
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/*@GET
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@Path("smp")
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public Response getSMPURI(@QueryParam(SMP_URI) @Nullable String smpURI, @QueryParam(FILE_NAME) String fileName, @QueryParam(CONTENT_TYPE) String contentType, @QueryParam(VALIDATION) Boolean validation){
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logger.info("resolve smp-id called");
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//Checking mandatory parameter smpId
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if(smpURI==null || smpURI.isEmpty()){
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logger.error(SMP_URI+" not found");
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return Response.status(Status.BAD_REQUEST).entity(Entity.text("Missing mandatory parameter "+SMP_URI)).build();
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}
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logger.warn("Sono qui getSMPURI");
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return getStorageId(smpURI, fileName, contentType, validation);
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}*/
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/**
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* Gets the smpid.
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*
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* @param smpId the smp id
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* @param fileName the file name
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* @param contentType the content type
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* @param validation the validation
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* @return the smpid
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*/
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@GET
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@Path("id")
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public Response getSMPID(@QueryParam(SMP_ID) @Nullable String smpId, @QueryParam(FILE_NAME) String fileName, @QueryParam(CONTENT_TYPE) String contentType, @QueryParam(VALIDATION) Boolean validation){
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logger.info("resolve smp-id called");
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//Checking mandatory parameter smpId
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if(smpId==null || smpId.isEmpty()){
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logger.error(SMP_ID+" not found");
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//return Response.status(400).entity(Entity.text("Missing mandatory parameter "+SMP_ID)).build();
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throw new WebApplicationException("Missing mandatory parameter "+SMP_ID, Status.BAD_REQUEST);
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}
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return getStorageId(smpId, fileName, contentType, validation);
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}
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/**
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* Gets the storage id.
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*
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* @param storageId the storage id
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* @param fileName the file name
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* @param contentType the content type
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* @param validation the validation
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* @return the storage id
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*/
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@GET
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@Path("{storage-id:(?!id)[^/?$]*}")
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public Response getStorageId(@PathParam(STORAGE_ID) String storageId, @QueryParam(FILE_NAME) String fileName, @QueryParam(CONTENT_TYPE) String contentType, @QueryParam(VALIDATION) Boolean validation) {
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logger.info("resolve Storage Id called");
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logger.info("storage-id: "+storageId+", fileName: "+fileName+", contentType: "+contentType+", validation: "+validation);
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//Checking to STORAGE-ID Resolver
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if (storageId == null || storageId.isEmpty()) {
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logger.warn("storageId not found");
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throw new WebApplicationException("Missing mandatory parameter "+STORAGE_ID, Status.BAD_REQUEST);
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}
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/*
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if(validation!=null && validation)
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return validationPayload(storageId);
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*/
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StorageClient client = getStorageClientInstance(storageId);
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String toSEID = null;
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IClient iClient = null;
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try{
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iClient = client.getClient();
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toSEID = iClient.getId(storageId); //to Storage Encrypted ID
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logger.debug("Decoded ID"+" = "+ toSEID);
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}catch(Exception e){
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logger.error("Storage Client Exception when getting file from storage: ", e);
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throw new WebApplicationException("Storage Client Exception when getting file from storage with id: "+storageId, Status.INTERNAL_SERVER_ERROR);
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}
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if(toSEID==null){
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String error = "Decrypted id is null, thrown exception!";
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throw new WebApplicationException(error, Status.BAD_REQUEST);
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}
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long size = iClient.getSize().RFileById(toSEID);
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try{
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MyFile file = iClient.getMetaFile().RFile(toSEID);
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logger.debug("MetaFile retrieved from storage? "+ (file!=null));
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//Reading the fileName from Storage Metadata only if the passed fileName is null
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if(fileName==null || fileName.isEmpty())
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fileName= file.getName();
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//Reading the contentType from Storage Metadata only if the passed contentType is null
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if(contentType==null || contentType.isEmpty())
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contentType = file.getMimeType();
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}catch (Exception e) {
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logger.warn("Error when getting file metadata from storage, printing this warning and trying to continue..", e);
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}
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fileName = fileName==null || fileName.isEmpty()?ConstantsResolver.DEFAULT_FILENAME_FROM_STORAGE_MANAGER:fileName;
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logger.info("filename retrieved is {}",fileName);
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contentType = contentType==null || contentType.isEmpty()?ConstantsResolver.DEFAULT_CONTENTTYPE_UNKNOWN_UNKNOWN:contentType;
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logger.info("contentType used is {}",contentType);
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//Building the response
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InputStream streamToWrite=iClient.get().RFileAsInputStream(toSEID); //input stream
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StreamingOutput so = new SingleFileStreamingOutput(streamToWrite);
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ResponseBuilder response = Response
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.ok(so)
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.header(ConstantsResolver.CONTENT_DISPOSITION,"attachment; filename = \""+fileName+"\"")
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.header(ConstantsResolver.CONTENT_LENGTH, size);
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if (contentType!= null) response.header("Content-Type",contentType);
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return response.build();
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}
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/**
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* Http do head.
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*
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* @param storageId the storage id
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* @param hproxycheck the hproxycheck
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* @return the response
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* @throws ServletException the servlet exception
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* @throws IOException Signals that an I/O exception has occurred.
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*/
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/*@HEAD
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@Path("{storage-id}")
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public Response httpDoHead(@PathParam(STORAGE_ID) String storageId, @QueryParam(HPROXYCHECK) Boolean hproxycheck) throws ServletException, IOException {
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logger.info("doHead working..");
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//THIS IS FOR HPROXY CHECK
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if(hproxycheck==null || hproxycheck){
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logger.trace("returning status 200 for Hproxy check");
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ResponseBuilder response = Response.status(HttpStatus.SC_OK);
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return response.build();
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}
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return validationPayload(storageId);
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}*/
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/**
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* Validation payload.
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*
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* @param storageId the storage id
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* @return the response
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*/
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/*protected Response validationPayload(String storageId){
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//Checking to STORAGE-ID Resolver
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if (storageId == null || storageId.isEmpty()) {
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logger.warn("storageId not found");
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throw new WebApplicationException("Missing mandatory parameter "+STORAGE_ID, Status.BAD_REQUEST);
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}
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StorageClient client = getStorageClientInstance(storageId);
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String toSEID = null;
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IClient iClient = null;
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try{
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iClient = client.getClient();
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toSEID = iClient.getId(storageId); //to Storage Encrypted ID
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logger.debug("Decoded ID"+" = "+ toSEID);
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}catch(Exception e){
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logger.error("Storage Client Exception when getting file from storage: ", e);
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throw new WebApplicationException("Storage Client Exception when getting file from storage with id: "+storageId, Status.INTERNAL_SERVER_ERROR);
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}
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if(toSEID==null){
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String error = "Decrypted storageId is null, thrown exception!";
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throw new WebApplicationException(error, Status.BAD_REQUEST);
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}
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//Building the response
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InputStream streamToWrite=iClient.get().RFileAsInputStream(toSEID); //input stream
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byte[] bytes = new byte[1]; //1B
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int c;
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try {
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c = streamToWrite.read(bytes);
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logger.info(c+" byte read from InputStream");
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if(c>0){
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logger.info("at least 1 byte read, returning status 200");
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IOUtils.closeQuietly(streamToWrite);
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ResponseBuilder response = Response.status(HttpStatus.SC_OK);
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return response.build();
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}else
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throw new WebApplicationException("The file with id: "+storageId+" is missing in the storage", Status.NOT_FOUND);
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}
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catch (IOException e) {
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logger.error("Error on validating the file: ",e);
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throw new WebApplicationException("Error on validating the file with id: "+storageId, Status.INTERNAL_SERVER_ERROR);
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}
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}*/
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/**
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* Gets the storage client instance.
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*
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* @param storageId the storage id
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* @return the storage client instance
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*/
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protected StorageClient getStorageClientInstance(String storageId){
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MemoryType memory=null;
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if(storageId.endsWith(org.gcube.contentmanagement.blobstorage.transport.backend.util.Costants.VOLATILE_URL_IDENTIFICATOR)){
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memory=MemoryType.VOLATILE;
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storageId=storageId.replace(org.gcube.contentmanagement.blobstorage.transport.backend.util.Costants.VOLATILE_URL_IDENTIFICATOR, "");
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}
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StorageClient client;
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if(memory==null)
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client=new StorageClient(StorageManager.class.getName(), StorageManager.class.getSimpleName(), STORAGEID_RESOLVER, AccessType.PUBLIC);
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else
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client=new StorageClient(StorageManager.class.getName(), StorageManager.class.getSimpleName(), STORAGEID_RESOLVER, AccessType.PUBLIC, memory);
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return client;
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}
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}
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