bundles/org.simantics.document.server/src/org/simantics/document/server/request/DocumentRequest.java

   1 package org.simantics.document.server.request;\r
   2 \r
   3 import java.util.ArrayList;\r
   4 import java.util.Collections;\r
   5 import java.util.Comparator;\r
   6 import java.util.HashSet;\r
   7 import java.util.List;\r
   8 import java.util.Set;\r
   9 \r
  10 import org.simantics.db.ReadGraph;\r
  11 import org.simantics.db.common.procedure.adapter.TransientCacheAsyncListener;\r
  12 import org.simantics.db.exception.DatabaseException;\r
  13 import org.simantics.db.layer0.request.VariableRead;\r
  14 import org.simantics.db.layer0.variable.Variable;\r
  15 import org.simantics.document.server.JSONObject;\r
  16 \r
  17 public class DocumentRequest extends VariableRead<List<JSONObject>> {\r
  18         \r
  19         public static boolean PROFILE = false;\r
  20 \r
  21     public DocumentRequest(Variable var) {\r
  22         super(var);\r
  23         }\r
  24 \r
  25         @Override\r
  26         public List<JSONObject> perform(ReadGraph graph) throws DatabaseException {\r
  27                 \r
  28                 long s = System.nanoTime();\r
  29                 \r
  30         Set<Variable> nodes = graph.syncRequest(new NodesRequest(variable), TransientCacheAsyncListener.<Set<Variable>>instance());\r
  31         HashSet<JSONObject> rs = new HashSet<JSONObject>(); // result\r
  32         if(nodes.isEmpty()) {\r
  33             return Collections.emptyList();\r
  34         }\r
  35         \r
  36         \r
  37         /*TreeMap<String, Variable> nodeMap = new TreeMap<String, Variable>();\r
  38         \r
  39         for (Variable node : nodes) {\r
  40                 nodeMap.put(node.getURI(graph), node);\r
  41         }\r
  42         System.out.println("*************************************************************************");\r
  43         for (Variable node : nodeMap.values()) {\r
  44                 System.out.println("               " + node.getURI(graph));\r
  45         }*/\r
  46         \r
  47         for(Variable node : nodes) {\r
  48             rs.add(graph.syncRequest(new NodeRequest(node), TransientCacheAsyncListener.<JSONObject>instance()));\r
  49         }\r
  50 \r
  51                 ArrayList<JSONObject> result = new ArrayList<JSONObject>(rs);\r
  52                 Collections.sort(result, new Comparator<JSONObject>() {\r
  53 \r
  54                         @Override\r
  55                         public int compare(JSONObject o1, JSONObject o2) {\r
  56                                 return o1.id.compareTo(o2.id);\r
  57                         }\r
  58                         \r
  59                 });\r
  60         \r
  61         if(PROFILE) {\r
  62                 long dura = System.nanoTime()-s;\r
  63                 System.err.println("DocumentRequest " + System.identityHashCode(this) + " " + variable.getURI(graph) + " in " + 1e-6*dura + "ms.");\r
  64         }\r
  65 \r
  66                 return result;\r
  67 \r
  68         }\r
  69 }