bundles/org.simantics.db.impl/src/org/simantics/db/impl/DatabaseUtils.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 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  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.db.impl;
  13
  14 import java.util.ArrayList;
  15 import java.util.Arrays;
  16 import java.util.List;
  17
  18 import org.simantics.db.ReadGraph;
  19 import org.simantics.db.Resource;
  20 import org.simantics.db.common.utils.Literals;
  21 import org.simantics.db.exception.ServiceException;
  22 import org.simantics.db.exception.ValidationException;
  23 import org.simantics.layer0.Layer0;
  24
  25 public class DatabaseUtils {
  26
  27     public static String getReadableName(ReadGraph graph, Resource resource) throws ValidationException, ServiceException {
  28         Layer0 b = Layer0.getInstance(graph);
  29
  30         String uri = graph.getPossibleURI(resource);
  31         if(uri != null) return uri;
  32
  33         List<String> names = new ArrayList<String>(1);
  34         for(Resource nameResource : graph.getObjects(resource, b.HasName)) {
  35             Object value = graph.getPossibleValue(nameResource);
  36             if(value != null) {
  37                 names.add(Literals.shortString(Literals.literalToString(value)));
  38             }
  39         }
  40         if(!names.isEmpty()) {
  41             if(names.size() == 1)
  42                 return names.get(0);
  43             else {
  44                 StringBuilder bb = new StringBuilder();
  45                 bb.append('[');
  46                 for(int i=0;i<names.size();++i) {
  47                     if(i>0)
  48                         bb.append(", ");
  49                     bb.append(names.get(i));
  50                 }
  51                 bb.append(']');
  52                 return bb.toString();
  53             }
  54         }
  55         StringBuilder bb = new StringBuilder();
  56         Object val = graph.getPossibleValue(resource);
  57         if(val != null) {
  58             if(val instanceof double[])
  59                 bb.append(Literals.shortString(Arrays.toString((double[])val)));
  60             else if(val instanceof float[])
  61                 bb.append(Literals.shortString(Arrays.toString((float[])val)));
  62             else if(val instanceof int[])
  63                 bb.append(Literals.shortString(Arrays.toString((int[])val)));
  64             else if(val instanceof boolean[])
  65                 bb.append(Literals.shortString(Arrays.toString((boolean[])val)));
  66             else if(val instanceof long[])
  67                 bb.append(Literals.shortString(Arrays.toString((long[])val)));
  68             else if(val instanceof byte[])
  69                 bb.append(Literals.shortString(Arrays.toString((byte[])val)));
  70             else if(val instanceof String[])
  71                 bb.append(Literals.shortString(Arrays.toString((String[])val)));
  72             else
  73                 bb.append(Literals.shortString(val));
  74         }
  75         else
  76             bb.append(resource.getResourceId());
  77         boolean ok = false;
  78         for(Resource r : graph.getObjects(resource, b.InstanceOf)) {
  79             bb.append(" : (" + getReadableName(graph, r) + ")");
  80             ok = true;
  81         }
  82         if(!ok) {
  83             for(Resource r : graph.getObjects(resource, b.Inherits)) {
  84                 bb.append(" <T (" + getReadableName(graph, r) + ")");
  85                 ok = true;
  86             }
  87             if(!ok) {
  88                 for(Resource r : graph.getObjects(resource, b.SubrelationOf)) {
  89                     bb.append(" <R (" + getReadableName(graph, r) + ")");
  90                     ok = true;
  91                 }
  92             }
  93         }
  94         return bb.toString();
  95     }
  96
  97 }