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

   1 package org.simantics.modeling.ui.componentTypeEditor;
   2
   3 import java.io.PrintWriter;
   4 import java.io.StringWriter;
   5 import java.util.Collections;
   6 import java.util.List;
   7
   8 import org.eclipse.core.runtime.CoreException;
   9 import org.eclipse.core.runtime.IProgressMonitor;
  10 import org.eclipse.jface.operation.IRunnableContext;
  11 import org.eclipse.jface.text.Document;
  12 import org.eclipse.jface.text.IDocument;
  13 import org.eclipse.jface.text.Position;
  14 import org.eclipse.jface.text.source.Annotation;
  15 import org.eclipse.jface.text.source.AnnotationModel;
  16 import org.eclipse.jface.text.source.IAnnotationModel;
  17 import org.eclipse.ui.texteditor.AbstractDocumentProvider;
  18 import org.simantics.Simantics;
  19 import org.simantics.databoard.Bindings;
  20 import org.simantics.db.ReadGraph;
  21 import org.simantics.db.Resource;
  22 import org.simantics.db.WriteGraph;
  23 import org.simantics.db.common.request.ReadRequest;
  24 import org.simantics.db.common.request.UniqueRead;
  25 import org.simantics.db.common.request.WriteRequest;
  26 import org.simantics.db.exception.DatabaseException;
  27 import org.simantics.db.layer0.util.Layer0Utils;
  28 import org.simantics.layer0.Layer0;
  29 import org.simantics.scl.compiler.errors.CompilationError;
  30 import org.simantics.scl.compiler.errors.Locations;
  31 import org.simantics.ui.workbench.ResourceEditorInput;
  32 import org.simantics.utils.logging.TimeLogger;
  33
  34 public class PGraphEditorDocumentProvider extends AbstractDocumentProvider {
  35
  36     protected Resource resource;
  37     protected String currentText;
  38     protected boolean errorHappened;
  39
  40     protected AnnotationModel annotationModel = new AnnotationModel();
  41
  42     @Override
  43     protected IDocument createDocument(Object element) throws CoreException {
  44         ResourceEditorInput input = (ResourceEditorInput)element;
  45         resource = input.getResource();
  46         try {
  47             return Simantics.getSession().syncRequest(new UniqueRead<Document>() {
  48                 @Override
  49                 public Document perform(ReadGraph graph) throws DatabaseException {
  50                     Layer0 L0 = Layer0.getInstance(graph);
  51                     currentText = graph.getRelatedValue(resource, L0.PGraph_definition, Bindings.STRING);
  52                     errorHappened = false;
  53                     return new Document(currentText != null ? currentText : "");
  54                 }
  55             });
  56         } catch (DatabaseException e) {
  57             StringWriter sw = new StringWriter();
  58             PrintWriter pw = new PrintWriter(sw);
  59             e.printStackTrace(pw);
  60             errorHappened = true;
  61             return new Document(sw.toString());
  62         }
  63     }
  64
  65     protected void updateAnnotations() {
  66         Simantics.getSession().asyncRequest(new ReadRequest() {
  67             @Override
  68             public void run(ReadGraph graph) throws DatabaseException {
  69                 setAnnotations(Collections.emptyList());
  70             }
  71         });
  72     }
  73
  74     protected void setAnnotations(List<CompilationError> errors) {
  75         synchronized(annotationModel.getLockObject()) {
  76             annotationModel.removeAllAnnotations();
  77             for(CompilationError error : errors) {
  78                 Annotation annotation = new Annotation("org.eclipse.ui.workbench.texteditor.error", true,
  79                         error.description);
  80                 int begin = Locations.beginOf(error.location);
  81                 int end = Locations.endOf(error.location);
  82                 Position position = new Position(begin, end - begin);
  83                 annotationModel.addAnnotation(annotation, position);
  84             }
  85         }
  86     }
  87
  88     boolean annotationsInitialized = false;
  89
  90     @Override
  91     protected IAnnotationModel createAnnotationModel(Object element)
  92             throws CoreException {
  93         if(!annotationsInitialized) {
  94             updateAnnotations();
  95             annotationsInitialized = true;
  96         }
  97         return annotationModel;
  98     }
  99
 100     @Override
 101     protected void doSaveDocument(IProgressMonitor monitor, Object element,
 102             IDocument document, boolean overwrite) throws CoreException {
 103         TimeLogger.resetTimeAndLog("PGraphEditorDocumentProvider.doSaveDocument");
 104         currentText = document.get();
 105         Simantics.getSession().asyncRequest(new WriteRequest() {
 106             @Override
 107             public void perform(WriteGraph graph) throws DatabaseException {
 108                 graph.markUndoPoint();
 109                 Layer0 L0 = Layer0.getInstance(graph);
 110                 graph.claimLiteral(resource, L0.PGraph_definition, currentText, Bindings.STRING);
 111                 Layer0Utils.addCommentMetadata(graph, "Saved Ontology Definition File " + graph.getRelatedValue2(resource, Layer0.getInstance(graph).HasName, Bindings.STRING));
 112             }
 113         });
 114     }
 115
 116     @Override
 117     protected IRunnableContext getOperationRunner(IProgressMonitor monitor) {
 118         return null;
 119     }
 120
 121     @Override
 122     public boolean isModifiable(Object element) {
 123         return !errorHappened;
 124     }
 125
 126     @Override
 127     public boolean isReadOnly(Object element) {
 128         return errorHappened;
 129     }
 130
 131 }