gerrit.onap Code Review - vfc/nfvo/wfengine.git/blob

   1 /*******************************************************************************
   2  * Copyright (c) 2012-2013,2015 University of Stuttgart.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * and the Apache License 2.0 which both accompany this distribution,
   6  * and are available at http://www.eclipse.org/legal/epl-v10.html
   7  * and http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Contributors:
  10  *     Oliver Kopp - initial API and implementation
  11  *******************************************************************************/
  12 package org.eclipse.winery.repository.resources.entitytemplates.artifacttemplates;
  13
  14 import java.io.BufferedInputStream;
  15 import java.io.IOException;
  16 import java.io.InputStream;
  17 import java.util.ArrayList;
  18 import java.util.List;
  19 import java.util.SortedSet;
  20
  21 import javax.ws.rs.Consumes;
  22 import javax.ws.rs.DELETE;
  23 import javax.ws.rs.GET;
  24 import javax.ws.rs.HeaderParam;
  25 import javax.ws.rs.POST;
  26 import javax.ws.rs.Path;
  27 import javax.ws.rs.PathParam;
  28 import javax.ws.rs.Produces;
  29 import javax.ws.rs.core.Context;
  30 import javax.ws.rs.core.MediaType;
  31 import javax.ws.rs.core.Response;
  32 import javax.ws.rs.core.Response.Status;
  33 import javax.ws.rs.core.UriInfo;
  34
  35 import org.apache.commons.io.FilenameUtils;
  36 import org.apache.commons.lang3.StringUtils;
  37 import org.eclipse.winery.common.RepositoryFileReference;
  38 import org.eclipse.winery.common.Util;
  39 import org.eclipse.winery.repository.Constants;
  40 import org.eclipse.winery.repository.Utils;
  41 import org.eclipse.winery.repository.backend.BackendUtils;
  42 import org.eclipse.winery.repository.backend.Repository;
  43 import org.eclipse.winery.repository.datatypes.FileMeta;
  44 import org.eclipse.winery.repository.datatypes.ids.elements.ArtifactTemplateDirectoryId;
  45 import org.slf4j.Logger;
  46 import org.slf4j.LoggerFactory;
  47
  48 import com.sun.jersey.api.view.Viewable;
  49 import com.sun.jersey.core.header.FormDataContentDisposition;
  50 import com.sun.jersey.multipart.FormDataBodyPart;
  51 import com.sun.jersey.multipart.FormDataParam;
  52
  53 public class FilesResource {
  54
  55         private static final Logger logger = LoggerFactory.getLogger(FilesResource.class);
  56         private final ArtifactTemplateDirectoryId fileDir;
  57
  58
  59         public FilesResource(ArtifactTemplateDirectoryId fileDir) {
  60                 this.fileDir = fileDir;
  61         }
  62
  63         private String getData4jqueryFileUpload(List<FileMeta> metas) {
  64                 String data4jqueryFileUpload = Utils.Object2JSON(metas);
  65                 data4jqueryFileUpload = "{\"files\":" + data4jqueryFileUpload + "}";
  66                 return data4jqueryFileUpload;
  67         }
  68
  69         /**
  70          * Handles the upload of a <em>single</em> file. Adds the given file to the
  71          * current artifact template.
  72          *
  73          * If the file already exists, is it <em>overridden</em>
  74          *
  75          * @return JSON with data required by JQuery-File-Upload (see
  76          *         https://github.com/blueimp/jQuery-File-Upload/wiki/Setup)
  77          */
  78         @POST
  79         @Produces(MediaType.APPLICATION_JSON)
  80         @Consumes(MediaType.MULTIPART_FORM_DATA)
  81         public Response onPost(@FormDataParam("files[]") InputStream uploadedInputStream, @FormDataParam("files[]") FormDataContentDisposition fileDetail, @FormDataParam("files[]") FormDataBodyPart body, @Context UriInfo uriInfo) {
  82                 // existence check not required as instantiation of the resource ensures that the object only exists if the resource exists
  83                 FilesResource.logger.debug("Beginning with file upload");
  84
  85                 String fileName = fileDetail.getFileName();
  86                 if (StringUtils.isEmpty(fileName)) {
  87                         return Response.status(Status.BAD_REQUEST).build();
  88                 }
  89                 RepositoryFileReference ref = this.fileName2fileRef(fileName, false);
  90
  91                 // TODO: instead of fixing the media type, we could overwrite the browser's mediatype by using some user configuration
  92                 BufferedInputStream bis = new BufferedInputStream(uploadedInputStream);
  93                 MediaType mediaType = Utils.getFixedMimeType(bis, fileName, body.getMediaType());
  94
  95                 Response response = BackendUtils.putContentToFile(ref, bis, mediaType);
  96                 if (response.getStatus() == Status.INTERNAL_SERVER_ERROR.getStatusCode()) {
  97                         return response;
  98                 }
  99
 100                 // create FileMeta object
 101                 String URL = Utils.getAbsoluteURL(this.fileDir) + Util.URLencode(fileName);
 102                 String thumbnailURL = uriInfo.getBaseUriBuilder().path(Constants.PATH_MIMETYPEIMAGES).path(FilenameUtils.getExtension(fileName) + Constants.SUFFIX_MIMETYPEIMAGES).build().toString();
 103                 long size;
 104                 try {
 105                         size = Repository.INSTANCE.getSize(ref);
 106                 } catch (IOException e) {
 107                         FilesResource.logger.error(e.getMessage(), e);
 108                         return Response.serverError().entity(e.getMessage()).build();
 109                 }
 110                 FileMeta fileMeta = new FileMeta(fileName, size, URL, thumbnailURL);
 111
 112                 List<FileMeta> metas = new ArrayList<FileMeta>();
 113                 metas.add(fileMeta);
 114                 return Response.created(Utils.createURI(URL)).entity(this.getData4jqueryFileUpload(metas)).build();
 115         }
 116
 117         /**
 118          * Returns a list of file meta object
 119          */
 120         @GET
 121         @Produces(MediaType.APPLICATION_JSON)
 122         public String getJSON() {
 123                 return this.getData4jqueryFileUpload(this.getAllFileMetas());
 124         }
 125
 126         private List<FileMeta> getAllFileMetas() {
 127                 List<FileMeta> res = new ArrayList<FileMeta>();
 128                 SortedSet<RepositoryFileReference> fileRefs = Repository.INSTANCE.getContainedFiles(this.fileDir);
 129                 for (RepositoryFileReference ref : fileRefs) {
 130                         res.add(new FileMeta(ref));
 131                 }
 132                 return res;
 133         }
 134
 135         private RepositoryFileReference fileName2fileRef(String fileName, boolean encoded) {
 136                 if (encoded) {
 137                         fileName = Util.URLdecode(fileName);
 138                 }
 139                 RepositoryFileReference ref = new RepositoryFileReference(this.fileDir, fileName);
 140                 return ref;
 141         }
 142
 143         @GET
 144         @Produces(MediaType.TEXT_HTML)
 145         public Viewable getHTML() {
 146                 return new Viewable("/jsp/entitytemplates/artifacttemplates/files.jsp");
 147         }
 148
 149         @GET
 150         @Path("/{fileName}")
 151         public Response getFile(@PathParam("fileName") String fileName, @HeaderParam("If-Modified-Since") String modified) {
 152                 RepositoryFileReference ref = this.fileName2fileRef(fileName, true);
 153                 return BackendUtils.returnRepoPath(ref, modified);
 154         }
 155
 156         @DELETE
 157         @Path("/{fileName}")
 158         public Response deleteFile(@PathParam("fileName") String fileName) {
 159                 RepositoryFileReference ref = this.fileName2fileRef(fileName, true);
 160                 return BackendUtils.delete(ref);
 161         }
 162
 163 }