gerrit.simantics Code Review - simantics/platform.git/blob

   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         IConsoleSupport cs = Simantics.getSession().getService(IConsoleSupport.class);
  38         Variable root = ProxyVariables.proxyVariableRoot(graph, var);
  39         if(root == null) return Collections.emptyList();
  40         Variable session = root.getParent(graph);
  41         String guid = session.getName(graph);
  42         IConsole console = cs.getConsole(guid);
  43                 SCLReportingHandler printer = (console != null) ? new ConsoleSCLReportingHandler(console)
  44                                 : (SCLReportingHandler) SCLContext.getCurrent().get(SCLReportingHandler.REPORTING_HANDLER);
  45         SCLContext sclContext = SCLContext.getCurrent();
  46                 Object oldPrinter = sclContext.put(SCLReportingHandler.REPORTING_HANDLER, printer);
  47
  48                 try {
  49
  50                         ArrayList<JSONObject> result = new ArrayList<JSONObject>(graph.syncRequest(new DocumentRequest(var)));
  51                         Collections.sort(result, new Comparator<JSONObject>() {
  52
  53                                 @Override
  54                                 public int compare(JSONObject o1, JSONObject o2) {
  55                                         return o1.id.compareTo(o2.id);
  56                                 }
  57
  58                         });
  59
  60                         return result;
  61
  62                 } finally {
  63                         sclContext.put(SCLReportingHandler.REPORTING_HANDLER, oldPrinter);
  64                 }
  65
  66         }
  67
  68 }