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

   1 package org.simantics.document.server.request;
   2
   3 import java.util.ArrayList;
   4 import java.util.List;
   5 import java.util.Map;
   6
   7 import org.simantics.db.ReadGraph;
   8 import org.simantics.db.exception.DatabaseException;
   9 import org.simantics.db.layer0.request.VariableRead;
  10 import org.simantics.db.layer0.variable.Variable;
  11 import org.simantics.document.server.JSONObject;
  12
  13 public class NodeRequest extends VariableRead<JSONObject> {
  14
  15     public static String ERRORS = "Errors";
  16
  17         public NodeRequest(Variable node) {
  18                 super(node);
  19         }
  20
  21         @SuppressWarnings("unchecked")
  22     @Override
  23         public JSONObject perform(ReadGraph graph) throws DatabaseException {
  24
  25                 long s = System.nanoTime();
  26
  27             JSONObject staticContent = graph.syncRequest(new NodeRequestStatic(variable));
  28             Map<String,Object> dynamicContent = graph.syncRequest(new NodeRequestDynamic(variable));
  29
  30             if(dynamicContent.isEmpty()) {
  31                 return staticContent;
  32             }
  33
  34         JSONObject result = staticContent.clone();
  35         result.add(dynamicContent);
  36
  37         if(dynamicContent.containsKey(ERRORS) || staticContent.getJSONField(ERRORS) != null) {
  38             ArrayList<String> errorList = new ArrayList<String>();
  39
  40             if(dynamicContent.containsKey(ERRORS))
  41                 errorList.addAll((List<String>)dynamicContent.get(ERRORS));
  42
  43             if(staticContent.getJSONField(ERRORS) != null)
  44                 errorList.addAll((List<String>)staticContent.getJSONField(ERRORS));
  45
  46             result.addJSONField(ERRORS, errorList);
  47         }
  48
  49         if(DocumentRequest.PROFILE) {
  50                 long dura = System.nanoTime()-s;
  51                 System.err.println("NodeRequest " + System.identityHashCode(this) + " " + variable.getURI(graph) + " in " + 1e-6*dura + "ms." + result);
  52         }
  53
  54             return result;
  55
  56         }
  57
  58 }