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

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2011 Association for Decentralized Information Management in
   3  * Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.issues.common;
  13
  14 import java.util.Set;
  15 import java.util.concurrent.atomic.AtomicBoolean;
  16 import java.util.concurrent.atomic.AtomicInteger;
  17
  18 import org.simantics.db.AsyncReadGraph;
  19 import org.simantics.db.Resource;
  20 import org.simantics.db.common.request.TernaryAsyncRead;
  21 import org.simantics.db.procedure.AsyncMultiProcedure;
  22 import org.simantics.db.procedure.AsyncProcedure;
  23 import org.simantics.issues.Severity;
  24 import org.simantics.issues.ontology.IssueResource;
  25
  26 /**
  27  * @author Tuukka Lehtonen
  28  */
  29 public class MaxIssueSeverityRecursive extends TernaryAsyncRead<Resource, Resource, Set<Resource>, Severity> {
  30
  31     public MaxIssueSeverityRecursive(Resource resource, Resource childRelation, Set<Resource> typesToRecurse) {
  32         super(resource, childRelation, typesToRecurse);
  33     }
  34
  35     @Override
  36     public void perform(AsyncReadGraph graph, final AsyncProcedure<Severity> procedure) {
  37
  38         IssueResource ISSUE = graph.getService(IssueResource.class);
  39
  40         AtomicInteger issues = new AtomicInteger();
  41         AtomicBoolean excepted = new AtomicBoolean(false);
  42
  43         graph.forEachObject(parameter, ISSUE.Issue_HasContext_Inverse, new AsyncMultiProcedure<Resource>() {
  44             @Override
  45             public void execute(AsyncReadGraph graph, Resource result) {
  46                 issues.incrementAndGet();
  47             }
  48             @Override
  49             public void finished(AsyncReadGraph graph) {
  50
  51             }
  52             @Override
  53             public void exception(AsyncReadGraph graph, Throwable throwable) {
  54                 if(excepted.compareAndSet(false, true))
  55                     procedure.exception(graph, throwable);
  56             }
  57         });
  58
  59         graph.forEachObject(parameter, ISSUE.Issue_ContextList_Element_Inverse, new AsyncMultiProcedure<Resource>() {
  60             @Override
  61             public void execute(AsyncReadGraph graph, Resource result) {
  62                 issues.incrementAndGet();
  63             }
  64             @Override
  65             public void finished(AsyncReadGraph graph) {
  66
  67             }
  68             @Override
  69             public void exception(AsyncReadGraph graph, Throwable throwable) {
  70                 if(excepted.compareAndSet(false, true))
  71                   procedure.exception(graph, throwable);
  72             }
  73         });
  74
  75         if(excepted.get()) return;
  76
  77         if (issues.get() == 0) {
  78             // This content does not have directly attached issues, try to look
  79             // for some in the child components.
  80             graph.asyncRequest(new ChildMaxIssueSeverity(parameter, parameter2, parameter3), procedure);
  81         } else {
  82             // Try local issues first
  83             graph.asyncRequest(new MaxIssueSeveritySingle(parameter), new AsyncProcedure<Severity>() {
  84                 @Override
  85                 public void execute(AsyncReadGraph graph, Severity maxSeverity) {
  86                     if (maxSeverity == null)
  87                         // No severity for local issues, try children next.
  88                         graph.asyncRequest(new ChildMaxIssueSeverity(parameter, parameter2, parameter3), procedure);
  89                     else
  90                         procedure.execute(graph, maxSeverity);
  91                 }
  92                 @Override
  93                 public void exception(AsyncReadGraph graph, Throwable throwable) {
  94                     if(excepted.compareAndSet(false, true))
  95                       procedure.exception(graph, throwable);
  96                 }
  97             });
  98         }
  99     }
 100
 101 }