bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/componentTypeEditor/PGraphEditorDocumentProvider.java

   1 package org.simantics.modeling.ui.componentTypeEditor;\r
   2 \r
   3 import java.io.PrintWriter;\r
   4 import java.io.StringWriter;\r
   5 import java.util.Arrays;\r
   6 import java.util.Collections;\r
   7 import java.util.List;\r
   8 \r
   9 import org.eclipse.core.runtime.CoreException;\r
  10 import org.eclipse.core.runtime.IProgressMonitor;\r
  11 import org.eclipse.jface.operation.IRunnableContext;\r
  12 import org.eclipse.jface.text.Document;\r
  13 import org.eclipse.jface.text.IDocument;\r
  14 import org.eclipse.jface.text.Position;\r
  15 import org.eclipse.jface.text.source.Annotation;\r
  16 import org.eclipse.jface.text.source.AnnotationModel;\r
  17 import org.eclipse.jface.text.source.IAnnotationModel;\r
  18 import org.eclipse.ui.texteditor.AbstractDocumentProvider;\r
  19 import org.simantics.Simantics;\r
  20 import org.simantics.databoard.Bindings;\r
  21 import org.simantics.db.ReadGraph;\r
  22 import org.simantics.db.Resource;\r
  23 import org.simantics.db.WriteGraph;\r
  24 import org.simantics.db.common.request.ReadRequest;\r
  25 import org.simantics.db.common.request.UniqueRead;\r
  26 import org.simantics.db.common.request.WriteRequest;\r
  27 import org.simantics.db.exception.DatabaseException;\r
  28 import org.simantics.db.layer0.util.Layer0Utils;\r
  29 import org.simantics.layer0.Layer0;\r
  30 import org.simantics.scl.compiler.errors.CompilationError;\r
  31 import org.simantics.scl.compiler.errors.Failable;\r
  32 import org.simantics.scl.compiler.errors.Failure;\r
  33 import org.simantics.scl.compiler.errors.Locations;\r
  34 import org.simantics.scl.compiler.module.Module;\r
  35 import org.simantics.scl.compiler.module.repository.UpdateListener;\r
  36 import org.simantics.scl.osgi.SCLOsgi;\r
  37 import org.simantics.scl.runtime.SCLContext;\r
  38 import org.simantics.ui.workbench.ResourceEditorInput;\r
  39 import org.simantics.utils.logging.TimeLogger;\r
  40 \r
  41 public class PGraphEditorDocumentProvider extends AbstractDocumentProvider {\r
  42 \r
  43     protected Resource resource;\r
  44     protected String currentText;\r
  45     protected boolean errorHappened;\r
  46 \r
  47     protected AnnotationModel annotationModel = new AnnotationModel();\r
  48 \r
  49     @Override\r
  50     protected IDocument createDocument(Object element) throws CoreException {\r
  51         ResourceEditorInput input = (ResourceEditorInput)element;\r
  52         resource = input.getResource();\r
  53         try {\r
  54             return Simantics.getSession().syncRequest(new UniqueRead<Document>() {\r
  55                 @Override\r
  56                 public Document perform(ReadGraph graph) throws DatabaseException {\r
  57                     Layer0 L0 = Layer0.getInstance(graph);\r
  58                     currentText = graph.getRelatedValue(resource, L0.PGraph_definition, Bindings.STRING);\r
  59                     errorHappened = false;\r
  60                     return new Document(currentText != null ? currentText : "");\r
  61                 }\r
  62             });\r
  63         } catch (DatabaseException e) {\r
  64             StringWriter sw = new StringWriter();\r
  65             PrintWriter pw = new PrintWriter(sw);\r
  66             e.printStackTrace(pw);\r
  67             errorHappened = true;\r
  68             return new Document(sw.toString());\r
  69         }\r
  70     }\r
  71 \r
  72     // While this editor is active we do not want that this listener gets collected\r
  73     private UpdateListener listener = new UpdateListener() {\r
  74         @Override\r
  75         public void notifyAboutUpdate() {\r
  76             updateAnnotations();\r
  77         }\r
  78     };\r
  79 \r
  80     protected void updateAnnotations() {\r
  81         Simantics.getSession().asyncRequest(new ReadRequest() {\r
  82             @Override\r
  83             public void run(ReadGraph graph) throws DatabaseException {\r
  84 //                String moduleName = graph.getURI(resource);\r
  85 //                SCLContext context = SCLContext.getCurrent();\r
  86 //                context.put("graph", graph);\r
  87 //                Failable<Module> result = SCLOsgi.MODULE_REPOSITORY.getModule(moduleName, listener);\r
  88 //                \r
  89 //                if(result instanceof Failure) {\r
  90 //                    Failure failure = (Failure)result;\r
  91 //                    setAnnotations(Arrays.asList(failure.errors));\r
  92 //                }\r
  93 //                else {\r
  94 //                    setAnnotations(Collections.<CompilationError>emptyList());\r
  95 //                }\r
  96                 setAnnotations(Collections.<CompilationError>emptyList());\r
  97             }\r
  98         });\r
  99     }\r
 100 \r
 101     protected void setAnnotations(List<CompilationError> errors) {\r
 102         synchronized(annotationModel.getLockObject()) {\r
 103             annotationModel.removeAllAnnotations();\r
 104             for(CompilationError error : errors) {\r
 105                 Annotation annotation = new Annotation("org.eclipse.ui.workbench.texteditor.error", true,\r
 106                         error.description);\r
 107                 int begin = Locations.beginOf(error.location);\r
 108                 int end = Locations.endOf(error.location);\r
 109                 Position position = new Position(begin, end - begin);\r
 110                 annotationModel.addAnnotation(annotation, position);\r
 111             }\r
 112         }\r
 113     }\r
 114 \r
 115     boolean annotationsInitialized = false;\r
 116 \r
 117     @Override\r
 118     protected IAnnotationModel createAnnotationModel(Object element)\r
 119             throws CoreException {\r
 120         if(!annotationsInitialized) {\r
 121             updateAnnotations();\r
 122             annotationsInitialized = true;\r
 123         }\r
 124         return annotationModel;\r
 125     }\r
 126 \r
 127     @Override\r
 128     protected void doSaveDocument(IProgressMonitor monitor, Object element,\r
 129             IDocument document, boolean overwrite) throws CoreException {\r
 130         TimeLogger.resetTimeAndLog("PGraphEditorDocumentProvider.doSaveDocument");\r
 131         currentText = document.get();\r
 132         Simantics.getSession().asyncRequest(new WriteRequest() {\r
 133             @Override\r
 134             public void perform(WriteGraph graph) throws DatabaseException {\r
 135                 graph.markUndoPoint();\r
 136                 Layer0 L0 = Layer0.getInstance(graph);\r
 137                 graph.claimLiteral(resource, L0.PGraph_definition, currentText, Bindings.STRING);\r
 138                 Layer0Utils.addCommentMetadata(graph, "Saved Ontology Definition File " + graph.getRelatedValue2(resource, Layer0.getInstance(graph).HasName, Bindings.STRING));\r
 139             }\r
 140         });\r
 141     }\r
 142 \r
 143     @Override\r
 144     protected IRunnableContext getOperationRunner(IProgressMonitor monitor) {\r
 145         return null;\r
 146     }\r
 147 \r
 148     @Override\r
 149     public boolean isModifiable(Object element) {\r
 150         return !errorHappened;\r
 151     }\r
 152 \r
 153     @Override\r
 154     public boolean isReadOnly(Object element) {\r
 155         return errorHappened;\r
 156     }\r
 157 \r
 158     @Override\r
 159     public boolean canSaveDocument(Object element) {\r
 160         return !errorHappened && !getDocument(element).get().equals(currentText);\r
 161     }\r
 162 \r
 163 }\r