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

   1 package org.simantics.document.server.request;
   2
   3 import org.simantics.db.ReadGraph;
   4 import org.simantics.db.exception.DatabaseException;
   5 import org.simantics.db.layer0.request.VariableRead;
   6 import org.simantics.db.layer0.variable.Variable;
   7 import org.simantics.document.server.DocumentServerUtils.AttributesRequest;
   8 import org.simantics.document.server.JSONObject;
   9 import org.simantics.threadlog.Task;
  10 import org.simantics.threadlog.ThreadLog;
  11
  12 public class NodeRequest extends VariableRead<JSONObject> {
  13
  14     public static final String ERRORS = "Errors";
  15     public static final String PROPERTY_VALUE_EXCEPTIONS = "_PropertyValueExceptions";
  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                 Task task = ThreadLog.BEGIN("NodeRequest " + variable.getURI(graph));
  28
  29                 try {
  30
  31                         JSONObject staticContent = graph.syncRequest(new AttributesRequest(variable));
  32
  33                         if(DocumentRequest.PROFILE) {
  34                                 long dura = System.nanoTime()-s;
  35                                 if(dura > DocumentRequest.PROFILE_THRESHOLD_NODEREQUEST * 1e3) {
  36                                         System.err.println("NodeRequest " + System.identityHashCode(this) + " in " + 1e-6*dura + "ms. " + variable.getURI(graph));
  37                                 }
  38                         }
  39
  40
  41                 return staticContent;
  42
  43         } finally {
  44
  45                 task.end();
  46
  47         }
  48
  49     }
  50
  51 }