bundles/org.simantics.debug.browser/src/org/simantics/debug/browser/utils/ResourceInfo.java

   1 /*******************************************************************************
   2  * Copyright (c) 2016 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     THTH ry - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.debug.browser.utils;
  13
  14 import org.simantics.databoard.Bindings;
  15 import org.simantics.databoard.binding.Binding;
  16 import org.simantics.databoard.binding.error.BindingException;
  17 import org.simantics.databoard.type.Datatype;
  18 import org.simantics.db.ReadGraph;
  19 import org.simantics.db.Resource;
  20 import org.simantics.db.exception.DatabaseException;
  21 import org.simantics.layer0.Layer0;
  22 import org.simantics.utils.strings.AlphanumComparator;
  23
  24 public class ResourceInfo implements Comparable<ResourceInfo> {
  25     public final String label;
  26     public final String uri;
  27     public final long resourceId;
  28     public final Resource resource;
  29
  30     public ResourceInfo(ReadGraph graph, Resource resource) throws DatabaseException {
  31         this.label = getLabel(graph, resource);
  32         this.uri = graph.getPossibleURI(resource);
  33         this.resourceId = resource.getResourceId();
  34         this.resource = resource;
  35     }
  36
  37     @Override
  38     public String toString() {
  39         StringBuilder sb = new StringBuilder(80);
  40         sb.append("<a href=\"")
  41           .append(resourceId)
  42           .append("\"");
  43
  44         if (uri != null)
  45             sb.append(" title=\"").append(uri).append("\"");
  46
  47         sb.append(">")
  48           .append(Escapes.html(label))
  49           .append("</a>");
  50
  51         return sb.toString();
  52     }
  53
  54     public static String getLabel(ReadGraph graph, Resource resource) throws DatabaseException {
  55         Layer0 L0 = Layer0.getInstance(graph);
  56         String name = graph.getPossibleRelatedValue(resource, L0.HasName);
  57         if(name != null) {
  58             if(name.equals("Inverse")) {
  59                 Resource inverse = graph.getPossibleInverse(resource);
  60                 Resource parent = graph.getPossibleObject(resource, L0.PartOf);
  61                 if(inverse != null && inverse.equals(parent)) {
  62                     String parentName = graph.getPossibleRelatedValue(parent, L0.HasName);
  63                     if(parentName != null)
  64                         return parentName + "/Inverse";
  65                 }
  66             }
  67             return name;
  68         }
  69
  70         if(graph.hasValue(resource)) {
  71             Datatype datatype = graph.getDataType(resource);
  72             Binding binding = Bindings.getBinding(datatype);
  73             Object value = graph.getValue(resource, binding);
  74             try {
  75                 String valueString = binding.toString(value, true);
  76                 if(valueString.length() < 100)
  77                     return valueString;
  78                 else
  79                     return valueString.substring(0, 100) + "...";
  80             } catch (BindingException e) {
  81                 e.printStackTrace();
  82             }
  83         }
  84
  85         return "$" + resource.getResourceId();
  86     }
  87
  88     @Override
  89     public int compareTo(ResourceInfo o) {
  90         return AlphanumComparator.CASE_INSENSITIVE_COMPARATOR.compare(label, o.label);
  91     }
  92 }