| /******************************************************************************* |
| * Copyright (c) 2000, 2015 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ui.texteditor; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.eclipse.core.runtime.IConfigurationElement; |
| import org.eclipse.core.runtime.IExtensionPoint; |
| import org.eclipse.core.runtime.Platform; |
| |
| import org.eclipse.core.resources.IMarker; |
| |
| import org.eclipse.jface.resource.StringConverter; |
| |
| import org.eclipse.ui.editors.text.EditorsUI; |
| |
| |
| /** |
| * Provides the strategy for determining annotation types for given markers. |
| * |
| * @since 3.0 |
| */ |
| public final class AnnotationTypeLookup { |
| |
| /** |
| * Record representing an annotation type mapping. |
| */ |
| private static class AnnotationTypeMapping { |
| |
| final static int UNDEFINED= -1; |
| |
| String fAnnotationType; |
| String fMarkerType; |
| int fMarkerSeverity= UNDEFINED; |
| |
| boolean isMarkerSeverityDefined() { |
| return fMarkerSeverity != UNDEFINED; |
| } |
| } |
| |
| /** |
| * The lookup table for marker to annotation type mappings. The value type is a {@link String} |
| * or a {@code Map<Integer, String>}. |
| */ |
| private Map<String, Object> fMapping; |
| |
| /** |
| * Creates a new annotation lookup object. |
| */ |
| public AnnotationTypeLookup() { |
| } |
| |
| /** |
| * Computes the annotation type that corresponds to the state of |
| * the given marker. |
| * |
| * @param marker the marker |
| * @return the annotation type or <code>null</code> |
| */ |
| public String getAnnotationType(IMarker marker) { |
| String markerType= MarkerUtilities.getMarkerType(marker); |
| if (markerType != null) { |
| int severity= MarkerUtilities.getSeverity(marker); |
| return getAnnotationType(markerType, severity); |
| } |
| return null; |
| } |
| |
| /** |
| * Computes the annotation type that corresponds to the given marker type and |
| * the given marker severity. |
| * |
| * @param markerType the marker type |
| * @param markerSeverity the marker severity |
| * @return the annotation type or <code>null</code> |
| */ |
| public String getAnnotationType(String markerType, int markerSeverity) { |
| String annotationType= lookupAnnotationType(markerType, markerSeverity); |
| if (annotationType != null) |
| return annotationType; |
| String[] superTypes= MarkerUtilities.getSuperTypes(markerType); |
| for (int i= 0; i < superTypes.length; i++) { |
| annotationType= lookupAnnotationType(superTypes[i], markerSeverity); |
| if (annotationType != null) |
| return annotationType; |
| } |
| return null; |
| } |
| |
| /** |
| * Returns the annotation type for the given marker type and the given |
| * marker severity. |
| * |
| * @param markerType the marker type |
| * @param severity the marker severity |
| * @return the annotation type |
| */ |
| private String lookupAnnotationType(String markerType, int severity) { |
| if (fMapping == null) |
| initializeMapping(); |
| |
| Object value= fMapping.get(markerType); |
| |
| if (value instanceof String) |
| return (String) value; |
| |
| if (value instanceof Map) { |
| @SuppressWarnings("unchecked") |
| Map<Integer, String> severityMap= (Map<Integer, String>) value; |
| return severityMap.get(Integer.valueOf(severity)); |
| } |
| |
| return null; |
| } |
| |
| /** |
| * Initializes the mapping between markers and their property values and |
| * annotation types. |
| */ |
| private void initializeMapping() { |
| fMapping= new HashMap<>(); |
| List<AnnotationTypeMapping> mappings= getAnnotationTypeMappings(); |
| for (int i= 0, l= mappings.size(); i < l; i++) { |
| AnnotationTypeMapping atm= mappings.get(i); |
| if (atm.isMarkerSeverityDefined()) { |
| Object severityMap= fMapping.get(atm.fMarkerType); |
| if (!(severityMap instanceof Map)) { |
| severityMap= new HashMap<>(); |
| fMapping.put(atm.fMarkerType, severityMap); |
| } |
| @SuppressWarnings("unchecked") |
| Map<Integer, String> map= (Map<Integer, String>) severityMap; |
| map.put(Integer.valueOf(atm.fMarkerSeverity), atm.fAnnotationType); |
| } else { |
| fMapping.put(atm.fMarkerType, atm.fAnnotationType); |
| } |
| } |
| } |
| |
| /** |
| * Returns the list of annotation type mappings generated from the |
| * extensions provided for the annotation type extension point. |
| * |
| * @return a list of annotation type mappings |
| */ |
| private List<AnnotationTypeMapping> getAnnotationTypeMappings() { |
| List<AnnotationTypeMapping> annotationTypeMappings= new ArrayList<>(); |
| // read compatibility mode |
| readExtensionPoint(annotationTypeMappings, "markerAnnotationSpecification", "annotationType"); //$NON-NLS-1$ //$NON-NLS-2$ |
| // read new extension point |
| readExtensionPoint(annotationTypeMappings, "annotationTypes", "name"); //$NON-NLS-1$ //$NON-NLS-2$ |
| return annotationTypeMappings; |
| } |
| |
| /** |
| * Reads the extensions provided for the given extension point name. Uses |
| * the given type attribute name to create annotation type mappings that |
| * are appended to the given list. |
| * |
| * @param annotationTypeMappings the list to be populated |
| * @param extensionPointName the name of the extension point to read |
| * @param typeAttributeName the name of attribute specifying the annotation |
| * type |
| */ |
| private void readExtensionPoint(List<AnnotationTypeMapping> annotationTypeMappings, String extensionPointName, String typeAttributeName) { |
| IExtensionPoint extensionPoint= Platform.getExtensionRegistry().getExtensionPoint(EditorsUI.PLUGIN_ID, extensionPointName); |
| if (extensionPoint != null) { |
| IConfigurationElement[] elements= extensionPoint.getConfigurationElements(); |
| for (int i= 0; i < elements.length; i++) { |
| AnnotationTypeMapping mapping= createMapping(elements[i], typeAttributeName); |
| if (mapping != null) |
| annotationTypeMappings.add(mapping); |
| } |
| } |
| } |
| |
| /** |
| * Creates an annotation type mapping from the given configuration element. |
| * |
| * @param element the configuration element |
| * @param typeAttributeName the name of the attribute specifying the |
| * annotation type |
| * @return the annotation type mapping or <code>null</code> |
| */ |
| private AnnotationTypeMapping createMapping(IConfigurationElement element, String typeAttributeName) { |
| |
| AnnotationTypeMapping mapping= new AnnotationTypeMapping(); |
| |
| String s= element.getAttribute(typeAttributeName); |
| if (s == null || s.trim().length() == 0) return null; |
| mapping.fAnnotationType= s; |
| |
| s= element.getAttribute("markerType"); //$NON-NLS-1$ |
| if (s == null || s.trim().length() == 0) return null; |
| mapping.fMarkerType= s; |
| |
| s= element.getAttribute("markerSeverity"); //$NON-NLS-1$ |
| if (s != null && s.trim().length() > 0) |
| mapping.fMarkerSeverity= StringConverter.asInt(s, AnnotationTypeMapping.UNDEFINED); |
| |
| return mapping; |
| } |
| } |