bundles/org.simantics.db.common/src/org/simantics/db/common/utils/VersionMapRequest.java

   1 package org.simantics.db.common.utils;\r
   2 \r
   3 import java.util.Map;\r
   4 \r
   5 import org.simantics.db.ReadGraph;\r
   6 import org.simantics.db.Resource;\r
   7 import org.simantics.db.common.NamedResource;\r
   8 import org.simantics.db.common.request.ResourceRead;\r
   9 import org.simantics.db.common.uri.UnescapedChildMapOfResource;\r
  10 import org.simantics.db.exception.DatabaseException;\r
  11 \r
  12 public class VersionMapRequest extends ResourceRead<VersionMap> {\r
  13 \r
  14         public VersionMapRequest(Resource resource) {\r
  15                 super(resource);\r
  16         }\r
  17 \r
  18         @Override\r
  19         public VersionMap perform(ReadGraph graph) throws DatabaseException {\r
  20                 VersionMap result = new VersionMap();\r
  21                 Map<String,Resource> childMap = graph.syncRequest(new UnescapedChildMapOfResource(resource));\r
  22                 for(Map.Entry<String,Resource> entry : childMap.entrySet()) {\r
  23                         String s = entry.getKey();\r
  24                         Resource r = entry.getValue();\r
  25                         int pos = s.lastIndexOf('@');\r
  26                         if(pos == -1)  {\r
  27                                 result.add(s, new NamedResource("", r));\r
  28                         } else {\r
  29                                 String base = s.substring(0, pos);\r
  30                                 String version = s.substring(pos+1);\r
  31                                 result.add(base, new NamedResource(version, r));\r
  32                         }\r
  33                 }\r
  34                 return result;\r
  35         }\r
  36 \r
  37 }\r