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

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