bundles/org.simantics.graph/src/org/simantics/graph/representation/TransferableGraphUtils.java

   1 package org.simantics.graph.representation;
   2
   3 import java.util.ArrayList;
   4 import java.util.Collection;
   5 import java.util.HashMap;
   6 import java.util.Map;
   7 import java.util.TreeMap;
   8
   9 import org.simantics.databoard.Bindings;
  10 import org.simantics.databoard.adapter.AdaptException;
  11 import org.simantics.databoard.util.URIStringUtils;
  12
  13 import gnu.trove.list.array.TIntArrayList;
  14 import gnu.trove.map.TIntObjectMap;
  15 import gnu.trove.map.hash.TIntObjectHashMap;
  16
  17 public class TransferableGraphUtils {
  18
  19         public static Collection<Identity> getRoots(TransferableGraph1 tg) {
  20
  21                 ArrayList<Identity> result = new ArrayList<Identity>();
  22                 for(Identity id : tg.identities) {
  23                         if(id.definition instanceof Root) result.add(id);
  24                 }
  25                 return result;
  26
  27         }
  28
  29         public static Identity findRootWithName(TransferableGraph1 tg, String name) {
  30
  31                 for(Identity id : tg.identities) {
  32                         if(id.definition instanceof Root) {
  33                                 Root ext = (Root)id.definition;
  34                                 if(ext.name.equals(name)) return id;
  35                         }
  36                 }
  37                 return null;
  38
  39         }
  40
  41         public static Identity findExternalWithName(TransferableGraph1 tg, String name) {
  42
  43                 for(Identity id : tg.identities) {
  44                         if(id.definition instanceof External) {
  45                                 External ext = (External)id.definition;
  46                                 if(ext.name.equals(name)) return id;
  47                         }
  48                 }
  49                 return null;
  50
  51         }
  52
  53         public static Identity findExternalWithNameAndParent(TransferableGraph1 tg, int parent, String name) {
  54
  55                 for(Identity id : tg.identities) {
  56                         if(id.definition instanceof External) {
  57                                 External ext = (External)id.definition;
  58                                 if(ext.name.equals(name) && ext.parent == parent) return id;
  59                         }
  60                 }
  61                 return null;
  62
  63         }
  64
  65         public static Identity findExternal(TransferableGraph1 tg, String uri) {
  66
  67                 Identity identity = findExternalWithName(tg, "http:/");
  68                 if(identity == null) identity = findExternalWithName(tg, "");
  69                 if(identity == null) identity = findRootWithName(tg, "");
  70                 if("http:/".equals(uri)) return identity;
  71                 String[] tokens = uri.substring("http://".length()).split("/");
  72                 for(String token : tokens) {
  73                         identity = findExternalWithNameAndParent(tg, identity.resource, token);
  74                 }
  75                 return identity;
  76
  77         }
  78
  79         public static Identity getIdentity(TransferableGraph1 tg, int resource) {
  80                 for(Identity id : tg.identities) {
  81                         if(id.resource == resource) return id;
  82                 }
  83                 return null;
  84         }
  85
  86         public static TIntArrayList getStatements(TransferableGraph1 tg, int resource) {
  87                 TIntArrayList result = new TIntArrayList();
  88                 for(int i=0;i<tg.statements.length;i+=4) {
  89                         if(tg.statements[i] == resource) {
  90                                 result.add(tg.statements[i+1]);
  91                                 result.add(tg.statements[i+3]);
  92                         }
  93                 }
  94                 return result;
  95         }
  96
  97         public static Collection<Identity> getChildren(TransferableGraph1 tg, Identity parent) {
  98                 TreeMap<String,Identity> result = new TreeMap<>();
  99                 for(Identity id : tg.identities) {
 100                         if(id.definition instanceof Internal) {
 101                                 Internal internal = (Internal)id.definition;
 102                                 if(internal.parent == parent.resource) result.put(internal.name, id);
 103                         }
 104                 }
 105                 Identity consistsOf = findExternal(tg, "http://www.simantics.org/Layer0-1.1/ConsistsOf");
 106                 Identity hasName = findExternal(tg, "http://www.simantics.org/Layer0-1.1/HasName");
 107                 for(int i=0;i<tg.statements.length;i+=4) {
 108                         if(tg.statements[i] == parent.resource) {
 109                                 if(tg.statements[i+1] == consistsOf.resource) {
 110                                         Identity identity = getIdentity(tg, tg.statements[i+3]);
 111                                         if(identity != null) {
 112                                                 if(identity.definition instanceof Internal) {
 113                                                         Internal internal = (Internal)identity.definition;
 114                                                         result.put(internal.name, identity);
 115                                                 }
 116                                         } else {
 117                                                 int possibleNameResource = getPossibleObject(tg, tg.statements[i+3], hasName);
 118                                                 if(possibleNameResource != 0) {
 119                                                         Value value = findValue(tg, possibleNameResource);
 120                                                         if(value != null) {
 121                                                                 try {
 122                                                                         String name = (String)value.value.getValue(Bindings.STRING);
 123                                                                         result.put(name, new Identity(tg.statements[i+3], new Internal(tg.statements[i], name)));
 124                                                                 } catch (AdaptException e) {
 125                                                                         e.printStackTrace();
 126                                                                 }
 127                                                         }
 128                                                 }
 129                                         }
 130                                 }
 131                         }
 132                 }
 133                 return result.values();
 134         }
 135
 136         public static TIntArrayList getObjects(TransferableGraph1 tg, int subject, Identity predicate) {
 137                 TIntArrayList result = new TIntArrayList();
 138                 for(int i=0;i<tg.statements.length;i+=4) {
 139                         if(tg.statements[i] == subject && tg.statements[i+1] == predicate.resource) {
 140                                 result.add(tg.statements[i+3]);
 141                         }
 142                 }
 143                 return result;
 144         }
 145
 146         public static int getPossibleObject(TransferableGraph1 tg, int subject, Identity predicate) {
 147                 int result = 0;
 148                 for(int i=0;i<tg.statements.length;i+=4) {
 149                         if(tg.statements[i] == subject && tg.statements[i+1] == predicate.resource) {
 150                                 if(result != 0) return 0;
 151                                 result = tg.statements[i+3];
 152                         }
 153                 }
 154                 return result;
 155         }
 156
 157         public static int getPossibleObject(TransferableGraph1 tg, Identity subject, String predicate) {
 158                 Identity p = findExternal(tg, predicate);
 159                 if(p == null) return 0;
 160                 return getPossibleObject(tg, subject.resource, p);
 161         }
 162
 163         public static Map<Identity, String> getNames(TransferableGraph1 tg, Collection<Identity> ids) {
 164                 Map<Identity, String> result = new HashMap<Identity, String>();
 165                 for(Identity id : ids) {
 166                         if(id.definition instanceof Internal) {
 167                                 Internal internal = (Internal)id.definition;
 168                                 result.put(id, internal.name);
 169                         }
 170                 }
 171                 return result;
 172         }
 173
 174         public static String getName(TransferableGraph1 tg, Identity id) {
 175                 return getName(id);
 176         }
 177
 178         public static String getName(Identity id) {
 179                 if(id.definition instanceof Internal) {
 180                         Internal internal = (Internal)id.definition;
 181                         return internal.name;
 182                 } else if(id.definition instanceof External) {
 183                         External external = (External)id.definition;
 184                         return external.name;
 185                 } else if(id.definition instanceof Root) {
 186                         Root root = (Root)id.definition;
 187                         return root.name;
 188                 } else  {
 189                         Optional optional = (Optional)id.definition;
 190                         return optional.name;
 191                 }
 192         }
 193
 194         public static String getRootType(Identity id) {
 195                 if(id.definition instanceof Root) {
 196                         Root root = (Root)id.definition;
 197                         return root.type;
 198                 } else  {
 199                         throw new IllegalArgumentException("Expected root, got " + id);
 200                 }
 201         }
 202
 203         public static Value findValue(TransferableGraph1 tg, int subject) {
 204                 for(Value v : tg.values) {
 205                         if(v.resource == subject) return v;
 206                 }
 207                 return null;
 208         }
 209
 210         public static String getURI(TransferableGraph1 tg, int id) {
 211             return getURI(tg.resourceCount, tg.identities, id);
 212         }
 213
 214         public static String getURI(int resourceCount, Identity[] identities, int id) {
 215             for(Identity identity : identities) {
 216                 if(identity.resource == id) {
 217                     IdentityDefinition definition = identity.definition;
 218                     if(definition instanceof External) {
 219                         External def = (External)definition;
 220                         if(def.parent == -1) return "http:/";
 221                         else return getURI(resourceCount, identities, def.parent) + "/" + def.name;
 222                     } else if(definition instanceof Root) {
 223                         Root def = (Root)definition;
 224                         if(def.name.isEmpty()) return "http:/";
 225                         return def.name;
 226                     } else if (definition instanceof Internal) {
 227                         Internal def = (Internal)definition;
 228                         return getURI(resourceCount, identities, def.parent) + "/" + def.name;
 229                     } else {
 230                         return "";
 231                     }
 232                 }
 233             }
 234             return "<internal reference " + id + ">:";
 235         }
 236
 237         public static TIntObjectMap<Identity> mapIdentities(TransferableGraph1 tg) {
 238                 return mapIdentities(tg.identities);
 239         }
 240
 241         public static TIntObjectMap<Identity> mapIdentities(Identity[] identities) {
 242                 // Integer.MIN_VALUE cannot be the value of Identity.resource
 243                 TIntObjectMap<Identity> map = new TIntObjectHashMap<>(identities.length, 0.5f, Integer.MIN_VALUE);
 244                 for (Identity id : identities)
 245                         map.put(id.resource, id);
 246                 return map;
 247         }
 248
 249         public static String getURI(int resourceCount, TIntObjectMap<Identity> identities, int id) {
 250                 Identity identity = identities.get(id);
 251                 if(identity != null) {
 252                         IdentityDefinition definition = identity.definition;
 253                         if(definition instanceof External) {
 254                                 External def = (External)definition;
 255                                 if(def.parent == -1) return "http:/";
 256                                 else return getURI(resourceCount, identities, def.parent) + "/" + def.name;
 257                         } else if(definition instanceof Root) {
 258                                 Root def = (Root)definition;
 259                                 if(def.name.isEmpty()) return "http:/";
 260                                 return def.name;
 261                         } else if (definition instanceof Internal) {
 262                                 Internal def = (Internal)definition;
 263                                 return getURI(resourceCount, identities, def.parent) + "/" + def.name;
 264                         } else {
 265                                 return "";
 266                         }
 267                 }
 268                 return "<internal reference " + id + ">:";
 269         }
 270
 271         public static String getTrueURI(int resourceCount, TIntObjectMap<Identity> identities, int id) {
 272                 Identity identity = identities.get(id);
 273                 if(identity != null) {
 274                         IdentityDefinition definition = identity.definition;
 275                         if(definition instanceof External) {
 276                                 External def = (External)definition;
 277                                 if(def.parent == -1) return "http:/";
 278                                 else return getTrueURI(resourceCount, identities, def.parent) + "/" + URIStringUtils.escape(def.name);
 279                         } else if(definition instanceof Root) {
 280                                 Root def = (Root)definition;
 281                                 if(def.name.isEmpty()) return "http:/";
 282                                 return def.name;
 283                         } else if (definition instanceof Internal) {
 284                                 Internal def = (Internal)definition;
 285                                 return getTrueURI(resourceCount, identities, def.parent) + "/" + URIStringUtils.escape(def.name);
 286                         } else {
 287                                 return "";
 288                         }
 289                 }
 290                 return "<internal reference " + id + ">:";
 291         }
 292
 293 }