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.Collection;
   5 import java.util.List;
   6 import java.util.Map;
   7
   8 import org.simantics.db.ReadGraph;
   9 import org.simantics.db.exception.DatabaseException;
  10 import org.simantics.db.layer0.request.VariableRead;
  11 import org.simantics.db.layer0.variable.Variable;
  12 import org.simantics.document.server.DocumentServerUtils.AttributesRequest;
  13 import org.simantics.document.server.JSONObject;
  14 import org.simantics.utils.datastructures.Pair;
  15
  16 public class NodeRequest extends VariableRead<JSONObject> {
  17
  18     public static final String ERRORS = "Errors";
  19
  20         public NodeRequest(Variable node) {
  21                 super(node);
  22         }
  23
  24         @SuppressWarnings("unchecked")
  25     @Override
  26         public JSONObject perform(ReadGraph graph) throws DatabaseException {
  27
  28                 long s = System.nanoTime();
  29
  30                 Pair<JSONObject, Collection<Variable>> attribs = graph.syncRequest(new AttributesRequest(variable));
  31
  32             JSONObject staticContent = attribs.first;
  33             if(attribs.second.isEmpty()) {
  34
  35                 if(DocumentRequest.PROFILE) {
  36                         long dura = System.nanoTime()-s;
  37                     if(dura > DocumentRequest.PROFILE_THRESHOLD_NODEREQUEST * 1e3) {
  38                         System.err.println("NodeRequest " + System.identityHashCode(this) + " in " + 1e-6*dura + "ms. " + variable.getURI(graph));
  39                     }
  40                 }
  41
  42                 return staticContent;
  43             }
  44
  45             Map<String,Object> dynamicContent = graph.syncRequest(new NodeRequestDynamic(variable));
  46             if(dynamicContent.isEmpty()) {
  47                 return staticContent;
  48             }
  49
  50         JSONObject result = staticContent.clone();
  51         result.add(dynamicContent);
  52
  53         if(dynamicContent.containsKey(ERRORS) || staticContent.getJSONField(ERRORS) != null) {
  54             ArrayList<String> errorList = new ArrayList<>();
  55
  56             if(dynamicContent.containsKey(ERRORS))
  57                 errorList.addAll((List<String>)dynamicContent.get(ERRORS));
  58
  59             if(staticContent.getJSONField(ERRORS) != null)
  60                 errorList.addAll((List<String>)staticContent.getJSONField(ERRORS));
  61
  62             result.addJSONField(ERRORS, errorList);
  63         }
  64
  65         if(DocumentRequest.PROFILE) {
  66             long dura = System.nanoTime()-s;
  67             if(dura > DocumentRequest.PROFILE_THRESHOLD_NODEREQUEST * 1e3) {
  68                 System.err.println("NodeRequest " + System.identityHashCode(this) + " in " + 1e-6*dura + "ms. " + variable.getURI(graph));
  69             }
  70         }
  71
  72         return result;
  73
  74     }
  75
  76 }