winery/org.eclipse.winery.repository/src/main/java/org/eclipse/winery/repository/resources/GenericVisualAppearanceResource.java

   1 /*******************************************************************************
   2  * Copyright (c) 2012-2013 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;
  13
  14 import java.io.InputStream;
  15 import java.net.URI;
  16 import java.util.Map;
  17
  18 import javax.ws.rs.Consumes;
  19 import javax.ws.rs.DELETE;
  20 import javax.ws.rs.GET;
  21 import javax.ws.rs.HeaderParam;
  22 import javax.ws.rs.PUT;
  23 import javax.ws.rs.Path;
  24 import javax.ws.rs.core.MediaType;
  25 import javax.ws.rs.core.Response;
  26 import javax.xml.namespace.QName;
  27
  28 import org.eclipse.winery.common.RepositoryFileReference;
  29 import org.eclipse.winery.common.ids.elements.TOSCAElementId;
  30 import org.eclipse.winery.repository.Prefs;
  31 import org.eclipse.winery.repository.Utils;
  32 import org.eclipse.winery.repository.backend.BackendUtils;
  33 import org.eclipse.winery.repository.backend.constants.Filename;
  34 import org.eclipse.winery.repository.datatypes.ids.elements.VisualAppearanceId;
  35 import org.eclipse.winery.repository.resources.entitytypes.TopologyGraphElementEntityTypeResource;
  36
  37 //import com.fasterxml.jackson.annotation.JsonIgnore; // currently not required
  38 import com.sun.jersey.multipart.FormDataBodyPart;
  39 import com.sun.jersey.multipart.FormDataParam;
  40
  41 /**
  42  * Contains methods for both visual appearance for
  43  * <ul>
  44  * <li>node types</li>
  45  * <li>relationship types</li>
  46  * </ul>
  47  */
  48 public abstract class GenericVisualAppearanceResource {
  49
  50         protected final Map<QName, String> otherAttributes;
  51         protected final TopologyGraphElementEntityTypeResource res;
  52         protected final TOSCAElementId id;
  53
  54
  55         @DELETE
  56         public Response onDelete() {
  57                 return BackendUtils.delete(this.id);
  58         }
  59
  60         /**
  61          * Used for GUI when accessing the resource as data E.g., for topology
  62          * template
  63          */
  64         //@JsonIgnore
  65         public URI getAbsoluteURL() {
  66                 String URI = Prefs.INSTANCE.getResourcePath();
  67                 URI = URI + "/" + Utils.getURLforPathInsideRepo(BackendUtils.getPathInsideRepo(this.id));
  68                 return Utils.createURI(URI);
  69         }
  70
  71         //@JsonIgnore
  72         public TOSCAElementId getId() {
  73                 return this.id;
  74         }
  75
  76         /**
  77          * @param res
  78          * @param otherAttributes the other attributes of the node/relationship type
  79          * @param id the id of this subresource required for storing the images
  80          */
  81         public GenericVisualAppearanceResource(TopologyGraphElementEntityTypeResource res, Map<QName, String> otherAttributes, VisualAppearanceId id) {
  82                 this.id = id;
  83                 this.res = res;
  84                 this.otherAttributes = otherAttributes;
  85         }
  86
  87         /**
  88          * Determines repository reference to file in repo
  89          */
  90         protected RepositoryFileReference getRepoFileRef(String name) {
  91                 return new RepositoryFileReference(this.id, name);
  92         }
  93
  94         protected Response getImage(String name, String modified) {
  95                 RepositoryFileReference target = this.getRepoFileRef(name);
  96                 return BackendUtils.returnRepoPath(target, modified);
  97         }
  98
  99         /**
 100          * Arbitrary images are supported. There currently is no check for valid
 101          * image media types
 102          */
 103         protected Response putImage(String name, InputStream uploadedInputStream, MediaType mediaType) {
 104                 RepositoryFileReference target = this.getRepoFileRef(name);
 105                 return BackendUtils.putContentToFile(target, uploadedInputStream, mediaType);
 106         }
 107
 108         @GET
 109         @Path("16x16")
 110         public Response get16x16Image(@HeaderParam("If-Modified-Since") String modified) {
 111                 // Even if the extension is "png", it might contain a jpg, too
 112                 // We keep the file extension as the windows explorer can display previews even if the content is not a png
 113                 return this.getImage(Filename.FILENAME_SMALL_ICON, modified);
 114         }
 115
 116         @PUT
 117         @Path("16x16")
 118         @Consumes(MediaType.MULTIPART_FORM_DATA)
 119         public Response post16x16Image(@FormDataParam("file") InputStream uploadedInputStream, @FormDataParam("file") FormDataBodyPart body) {
 120                 return this.putImage(Filename.FILENAME_SMALL_ICON, uploadedInputStream, body.getMediaType());
 121         }
 122
 123 }