bundles/org.simantics.document.server/src/org/simantics/document/server/request/URIDocumentRequest.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.List;
   7
   8 import org.simantics.Simantics;
   9 import org.simantics.db.ReadGraph;
  10 import org.simantics.db.common.request.UnaryRead;
  11 import org.simantics.db.exception.DatabaseException;
  12 import org.simantics.db.layer0.variable.ProxyVariables;
  13 import org.simantics.db.layer0.variable.Variable;
  14 import org.simantics.db.layer0.variable.Variables;
  15 import org.simantics.document.server.ConsoleSCLReportingHandler;
  16 import org.simantics.document.server.JSONObject;
  17 import org.simantics.document.server.io.IConsole;
  18 import org.simantics.document.server.io.IConsoleSupport;
  19 import org.simantics.scl.runtime.SCLContext;
  20 import org.simantics.scl.runtime.reporting.SCLReportingHandler;
  21
  22 public class URIDocumentRequest extends UnaryRead<String, List<JSONObject>> {
  23
  24     public URIDocumentRequest(String var) {
  25         super(var);
  26         }
  27
  28         @Override
  29         public List<JSONObject> perform(ReadGraph graph) throws DatabaseException {
  30
  31                 Variable var = Variables.getPossibleVariable(graph, parameter);
  32                 if(var == null) {
  33                         Variables.getPossibleVariable(graph, parameter);
  34                         return Collections.emptyList();
  35                 }
  36
  37                 IConsole console = null;
  38                 IConsoleSupport cs = Simantics.getSession().peekService(IConsoleSupport.class);
  39                 if (cs != null) {
  40                         Variable root = ProxyVariables.proxyVariableRoot(graph, var);
  41                         if (root == null)
  42                                 return Collections.emptyList();
  43                         Variable session = root.getParent(graph);
  44                         String guid = session.getName(graph);
  45                         console = cs.getConsole(guid);
  46                 }
  47
  48                 SCLContext sclContext = SCLContext.getCurrent();
  49                 SCLReportingHandler printer = (console != null) ? new ConsoleSCLReportingHandler(console)
  50                                 : (SCLReportingHandler) sclContext.get(SCLReportingHandler.REPORTING_HANDLER);
  51                 Object oldPrinter = sclContext.put(SCLReportingHandler.REPORTING_HANDLER, printer);
  52
  53                 try {
  54                         List<JSONObject> result = new ArrayList<>(graph.syncRequest(new DocumentRequest(var)));
  55                         Collections.sort(result, COMPARATOR);
  56                         return result;
  57                 } finally {
  58                         sclContext.put(SCLReportingHandler.REPORTING_HANDLER, oldPrinter);
  59                 }
  60
  61         }
  62
  63         private static final Comparator<JSONObject> COMPARATOR = (o1, o2) -> o1.id.compareTo(o2.id);
  64
  65 }