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     public static final String PROPERTY_VALUE_EXCEPTIONS = "_PropertyValueExceptions";
  20
  21         public NodeRequest(Variable node) {
  22                 super(node);
  23         }
  24
  25         @SuppressWarnings("unchecked")
  26     @Override
  27         public JSONObject perform(ReadGraph graph) throws DatabaseException {
  28
  29                 long s = System.nanoTime();
  30
  31                 Pair<JSONObject, Collection<Variable>> attribs = graph.syncRequest(new AttributesRequest(variable));
  32
  33             JSONObject staticContent = attribs.first;
  34             if(attribs.second.isEmpty()) {
  35
  36                 if(DocumentRequest.PROFILE) {
  37                         long dura = System.nanoTime()-s;
  38                     if(dura > DocumentRequest.PROFILE_THRESHOLD_NODEREQUEST * 1e3) {
  39                         System.err.println("NodeRequest " + System.identityHashCode(this) + " in " + 1e-6*dura + "ms. " + variable.getURI(graph));
  40                     }
  41                 }
  42
  43                 return staticContent;
  44             }
  45
  46             Map<String,Object> dynamicContent = graph.syncRequest(new NodeRequestDynamic(variable));
  47             if(dynamicContent.isEmpty()) {
  48                 return staticContent;
  49             }
  50
  51         JSONObject result = staticContent.clone();
  52         result.add(dynamicContent);
  53
  54         if(dynamicContent.containsKey(ERRORS) || staticContent.getJSONField(ERRORS) != null) {
  55             ArrayList<String> errorList = new ArrayList<>();
  56
  57             if(dynamicContent.containsKey(ERRORS))
  58                 errorList.addAll((List<String>)dynamicContent.get(ERRORS));
  59
  60             if(staticContent.getJSONField(ERRORS) != null)
  61                 errorList.addAll((List<String>)staticContent.getJSONField(ERRORS));
  62
  63             result.addJSONField(ERRORS, errorList);
  64         }
  65
  66         if(DocumentRequest.PROFILE) {
  67             long dura = System.nanoTime()-s;
  68             if(dura > DocumentRequest.PROFILE_THRESHOLD_NODEREQUEST * 1e3) {
  69                 System.err.println("NodeRequest " + System.identityHashCode(this) + " in " + 1e-6*dura + "ms. " + variable.getURI(graph));
  70             }
  71         }
  72
  73         return result;
  74
  75     }
  76
  77 }