bundles/org.simantics.issues.common/src/org/simantics/issues/common/ChildMaxIssueSeverity.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2011 Association for Decentralized Information Management in\r
   3  * Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.issues.common;\r
  13 \r
  14 import java.util.Collections;\r
  15 import java.util.Set;\r
  16 import java.util.concurrent.atomic.AtomicReference;\r
  17 \r
  18 import org.simantics.db.AsyncReadGraph;\r
  19 import org.simantics.db.Resource;\r
  20 import org.simantics.db.common.request.TernaryAsyncRead;\r
  21 import org.simantics.db.procedure.AsyncMultiProcedure;\r
  22 import org.simantics.db.procedure.AsyncProcedure;\r
  23 import org.simantics.issues.Severity;\r
  24 \r
  25 /**\r
  26  * @author Tuukka Lehtonen\r
  27  */\r
  28 public class ChildMaxIssueSeverity extends TernaryAsyncRead<Resource, Resource, Set<Resource>, Severity>{\r
  29 \r
  30     public ChildMaxIssueSeverity(Resource resource, Resource childRelation, Set<Resource> typesToRecurse) {\r
  31         super(resource, childRelation, typesToRecurse);\r
  32     }\r
  33 \r
  34 //    @Override\r
  35 //    public Severity perform(ReadGraph graph) throws DatabaseException {\r
  36 //        Severity maxSeverity = null;\r
  37 //        //System.out.println("severityForChildren: " + NameUtils.getSafeName(graph, resource));\r
  38 //        for (Resource child : graph.getObjects(resource, resource2)) {\r
  39 //            Severity s = graph.syncRequest(new MaxIssueSeverityRecursive(child));\r
  40 //            maxSeverity = Severity.moreSevere(maxSeverity, s);\r
  41 //        }\r
  42 //        //System.out.println("severityForChildren: " + NameUtils.getSafeName(graph, resource) + " : " + maxSeverity);\r
  43 //        return maxSeverity;\r
  44 //    }\r
  45 \r
  46     @Override\r
  47     public void perform(AsyncReadGraph graph, final AsyncProcedure<Severity> procedure) {\r
  48         //System.out.println(getClass().getSimpleName() + ": " + parameter);\r
  49         \r
  50         graph.forTypes(parameter, new AsyncProcedure<Set<Resource>>() {\r
  51             @Override\r
  52             public void execute(AsyncReadGraph graph, Set<Resource> result) {\r
  53                 if (!Collections.disjoint(parameter3, result)) {\r
  54                     checkChildren(graph, procedure);\r
  55                 } else {\r
  56                     procedure.execute(graph, null);\r
  57                 }\r
  58             }\r
  59             @Override\r
  60             public void exception(AsyncReadGraph graph, Throwable throwable) {\r
  61                 procedure.exception(graph, throwable);\r
  62             }\r
  63         });\r
  64     }\r
  65 \r
  66     protected void checkChildren(AsyncReadGraph graph, final AsyncProcedure<Severity> procedure) {\r
  67         graph.forEachObject(parameter, parameter2, new AsyncMultiProcedure<Resource>() {\r
  68             AtomicReference<Severity> maxSeverity = new AtomicReference<Severity>();\r
  69             @Override\r
  70             public void execute(AsyncReadGraph graph, Resource child) {\r
  71                 graph.asyncRequest(new MaxIssueSeverityRecursive(child, parameter2, parameter3), new AsyncProcedure<Severity>() {\r
  72                     @Override\r
  73                     public void execute(AsyncReadGraph graph, Severity severity) {\r
  74                         if (severity != null) {\r
  75                             synchronized (maxSeverity) {\r
  76                                 maxSeverity.set(Severity.moreSevere(maxSeverity.get(), severity));\r
  77                             }\r
  78                         }\r
  79                     }\r
  80                     @Override\r
  81                     public void exception(AsyncReadGraph graph, Throwable throwable) {\r
  82                         procedure.exception(graph, throwable);\r
  83                     }\r
  84                 });\r
  85             }\r
  86             @Override\r
  87             public void finished(AsyncReadGraph graph) {\r
  88                 procedure.execute(graph, maxSeverity.get());\r
  89             }\r
  90             @Override\r
  91             public void exception(AsyncReadGraph graph, Throwable throwable) {\r
  92                 procedure.exception(graph, throwable);\r
  93             }\r
  94         });\r
  95     }\r
  96 \r
  97 }\r