bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/scl/scriptEditor/SCLScriptAnnotationModel.java

   1 /*******************************************************************************
   2  * Copyright (c) 2017 Association for Decentralized Information Management
   3  * in 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  *     Semantum Oy - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.modeling.ui.scl.scriptEditor;
  13
  14 import java.util.Arrays;
  15 import java.util.List;
  16
  17 import org.eclipse.jface.text.IDocument;
  18 import org.eclipse.jface.text.Position;
  19 import org.eclipse.jface.text.source.Annotation;
  20 import org.eclipse.jface.text.source.AnnotationModel;
  21 import org.simantics.Simantics;
  22 import org.simantics.db.procedure.Listener;
  23 import org.simantics.scl.compiler.commands.CommandSession;
  24 import org.simantics.scl.compiler.errors.CompilationError;
  25 import org.simantics.scl.compiler.errors.ErrorSeverity;
  26 import org.simantics.scl.compiler.errors.Locations;
  27 import org.simantics.scl.compiler.module.repository.ModuleRepository;
  28 import org.simantics.scl.runtime.reporting.AbstractSCLReportingHandler;
  29 import org.simantics.scl.runtime.reporting.SCLReportingHandler;
  30 import org.slf4j.Logger;
  31 import org.slf4j.LoggerFactory;
  32
  33 /**
  34  * @author Tuukka Lehtonen
  35  * @since 1.31.0
  36  */
  37 public class SCLScriptAnnotationModel extends AnnotationModel {
  38
  39     private static final Logger LOGGER = LoggerFactory.getLogger(SCLScriptAnnotationModel.class);
  40
  41     private final SCLScriptEditorInput input;
  42     private final ModuleRepository repository;
  43     private volatile boolean connected = false;
  44
  45     public SCLScriptAnnotationModel(SCLScriptEditorInput input, ModuleRepository repository) {
  46         this.input = input;
  47         this.repository = repository;
  48     }
  49
  50     private Listener<String> sourceListener = new Listener<String>() {
  51         @Override
  52         public void execute(String result) {
  53             if (connected && result != null)
  54                 updateAnnotations(result);
  55         }
  56         @Override
  57         public void exception(Throwable t) {
  58             LOGGER.error("Failed to read SCL script source from " + input.getScriptURI(), t);
  59         }
  60         @Override
  61         public boolean isDisposed() {
  62             return !connected;
  63         }
  64     };
  65
  66     private void listenToSource() {
  67         Simantics.getSession().asyncRequest(new ReadSCLScriptDefinition(input.getScriptURI()), sourceListener);
  68     }
  69
  70     private static final SCLReportingHandler NOP = new AbstractSCLReportingHandler() {
  71         @Override
  72         public void print(String text) {}
  73     };
  74
  75     private void updateAnnotations(String sourceText) {
  76         //LOGGER.debug("updateAnnotations:\n" + sourceText);
  77         CompilationError[] errors = new CommandSession(repository, NOP).validate(sourceText);
  78         setAnnotations(Arrays.asList(errors));
  79     }
  80
  81     protected void setAnnotations(List<CompilationError> errors) {
  82         synchronized (getLockObject()) {
  83             removeAllAnnotations();
  84             for (CompilationError error : errors) {
  85                 Annotation annotation = new Annotation(
  86                         error.severity == ErrorSeverity.ERROR || error.severity == ErrorSeverity.IMPORT_ERROR ?
  87                                 "org.eclipse.ui.workbench.texteditor.error" :
  88                                     "org.eclipse.ui.workbench.texteditor.warning",
  89                                     true, error.description);
  90                 int begin = Locations.beginOf(error.location);
  91                 int end = Locations.endOf(error.location);
  92                 if (begin < 0 || end < begin) {
  93                     begin = 0;
  94                     end = 1;
  95                 }
  96                 addAnnotation(annotation, new Position(begin, end - begin));
  97             }
  98         }
  99     }
 100
 101     @Override
 102     public void connect(IDocument document) {
 103         //LOGGER.debug("connect(" + document + ")");
 104         super.connect(document);
 105         connected = true;
 106         listenToSource();
 107     }
 108
 109     @Override
 110     public void disconnect(IDocument document) {
 111         //LOGGER.debug("disconnect(" + document + ")");
 112         connected = false;
 113         super.disconnect(document);
 114     }
 115
 116 }