| /******************************************************************************* |
| * Copyright (c) 2007, 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 |
| * Andrey Loskutov <loskutov@gmx.de> - generified interface, bug 461762 |
| *******************************************************************************/ |
| |
| package org.eclipse.ui.internal.views.markers; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.eclipse.core.resources.IMarker; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IAdaptable; |
| import org.eclipse.core.runtime.IAdapterFactory; |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.core.runtime.Platform; |
| import org.eclipse.osgi.util.NLS; |
| import org.eclipse.ui.internal.ide.Policy; |
| import org.eclipse.ui.views.markers.MarkerViewUtil; |
| import org.eclipse.ui.views.markers.internal.MarkerMessages; |
| import org.eclipse.ui.views.markers.internal.MarkerTypesModel; |
| |
| import com.ibm.icu.text.CollationKey; |
| import com.ibm.icu.text.Collator; |
| |
| /** |
| * The MarkerEntry is the class that wrappers an {@link IMarker} for display in |
| * an {@link ExtendedMarkersView}. |
| * |
| * @since 3.4 |
| * |
| */ |
| class MarkerEntry extends MarkerSupportItem implements IAdaptable { |
| |
| static { |
| Platform.getAdapterManager().registerAdapters(new IAdapterFactory() { |
| |
| @Override |
| public <T> T getAdapter(Object adaptableObject, Class<T> adapterType) { |
| if (adapterType == IMarker.class && adaptableObject instanceof MarkerEntry) { |
| return adapterType.cast(((MarkerEntry) adaptableObject).getMarker()); |
| } |
| return null; |
| } |
| |
| @Override |
| public Class<?>[] getAdapterList() { |
| return new Class[] { IMarker.class }; |
| } |
| }, MarkerEntry.class); |
| } |
| |
| // The key for the string we built for display |
| private static final String LOCATION_STRING = "LOCATION_STRING"; //$NON-NLS-1$ |
| private MarkerCategory category; |
| private Map<String, Object> cache; |
| |
| /** |
| * Set the MarkerEntry to be stale, if discovered at any point of time |
| * of its use.This will greatly speed up a lot of parts of the view. |
| * @since 3.6 |
| */ |
| private boolean stale; |
| /** |
| * Important: |
| * access to these fields must be via methods, they must be in sync and their |
| * values should reflect correctly the state of the other |
| */ |
| private IMarker marker; |
| |
| /** |
| * Create a new instance of the receiver. |
| * |
| * @param marker |
| */ |
| public MarkerEntry(IMarker marker) { |
| this.marker = marker; |
| stale = false; |
| } |
| |
| @Override |
| public <T> T getAdapter(Class<T> adapter) { |
| if (adapter.equals(IMarker.class)) { |
| return adapter.cast(marker); |
| } |
| return null; |
| } |
| |
| @Override |
| public boolean getAttributeValue(String attribute, boolean defaultValue) { |
| Object value = getAttributeValue(attribute); |
| if (value == null) { |
| return defaultValue; |
| } |
| return ((Boolean) value).booleanValue(); |
| } |
| |
| @Override |
| public int getAttributeValue(String attribute, int defaultValue) { |
| Object value = getAttributeValue(attribute); |
| if (value == null) { |
| return defaultValue; |
| } |
| return ((Integer) value).intValue(); |
| } |
| |
| /** |
| * Return the Object that is the marker value for attribute. Return null if |
| * it is not found. |
| * |
| * @param attribute |
| * @return Object or <code>null</code> |
| */ |
| Object getAttributeValue(String attribute) { |
| Object value = getCache().get(attribute); |
| if(value == null) { |
| if(stale){ |
| return value; |
| } |
| try { |
| value = marker.getAttribute(attribute); |
| } catch (CoreException e) { |
| checkIfMarkerStale() ; |
| value = null; |
| } |
| if(value != null) { |
| getCache().put(attribute, value); |
| } |
| } |
| if (value instanceof CollationKey) { |
| return ((CollationKey) value).getSourceString(); |
| } |
| return value; |
| } |
| |
| @Override |
| public String getAttributeValue(String attribute, String defaultValue) { |
| Object value = getAttributeValue(attribute); |
| if (value == null) { |
| return defaultValue; |
| } |
| // The following toString() is a no-op for string attribute |
| // values (which we expect!), but safeguards against clients |
| // who used non-String objects (e.g. Integer) as attribute values, |
| // see bug 218249. |
| return value.toString(); |
| } |
| |
| /** |
| * Get the category of the receiver. |
| * |
| * @return {@link MarkerCategory} |
| */ |
| MarkerCategory getCategory() { |
| return category; |
| } |
| |
| @Override |
| MarkerSupportItem[] getChildren() { |
| return MarkerSupportInternalUtilities.EMPTY_MARKER_ITEM_ARRAY; |
| } |
| |
| /** |
| * Get the CollationKey for the string attribute. |
| * |
| * @param attribute |
| * @param defaultValue |
| * the defaultValue if the value is not set |
| * @return CollationKey |
| */ |
| CollationKey getCollationKey(String attribute, String defaultValue) { |
| String attributeValue; |
| Object value = getCache().get(attribute); |
| if (value != null) { |
| // Only return a collation key otherwise |
| //use the value to generate it |
| if (value instanceof CollationKey) { |
| return (CollationKey) value; |
| } |
| attributeValue = value.toString(); |
| } else { |
| attributeValue = getAttributeValue(attribute, defaultValue); |
| } |
| |
| if (attributeValue.length() == 0) { |
| return MarkerSupportInternalUtilities.EMPTY_COLLATION_KEY; |
| } |
| CollationKey key = Collator.getInstance().getCollationKey(attributeValue); |
| getCache().put(attribute, key); |
| return key; |
| } |
| |
| @Override |
| long getCreationTime() { |
| if(stale){ |
| return -1; |
| } |
| try { |
| return marker.getCreationTime(); |
| } catch (CoreException e) { |
| checkIfMarkerStale(); |
| Policy.handle(e); |
| return -1; |
| } |
| } |
| |
| @Override |
| String getDescription() { |
| return getAttributeValue(IMarker.MESSAGE, MarkerSupportInternalUtilities.UNKNOWN_ATRRIBTE_VALUE_STRING); |
| } |
| |
| @Override |
| long getID() { |
| return marker.getId(); |
| } |
| |
| @Override |
| public String getLocation() { |
| if(stale||checkIfMarkerStale()){ |
| return MarkerSupportInternalUtilities.UNKNOWN_ATRRIBTE_VALUE_STRING; |
| } |
| if (getCache().containsKey(LOCATION_STRING)) { |
| Object value = getCache().get(LOCATION_STRING); |
| if (value instanceof CollationKey) { |
| return ((CollationKey) value).getSourceString(); |
| } |
| return (String) value; |
| } |
| |
| |
| // Is the location override set? |
| String locationString = getAttributeValue(IMarker.LOCATION, MarkerSupportInternalUtilities.EMPTY_STRING); |
| if (locationString.length() > 0) { |
| getCache().put(LOCATION_STRING, locationString); |
| return locationString; |
| } |
| |
| // No override so use line number |
| int lineNumber = getAttributeValue(IMarker.LINE_NUMBER, -1); |
| String lineNumberString; |
| if (lineNumber < 0) { |
| lineNumberString = MarkerMessages.Unknown; |
| } else { |
| lineNumberString = NLS.bind(MarkerMessages.label_lineNumber, Integer.toString(lineNumber)); |
| } |
| |
| getCache().put(LOCATION_STRING, lineNumberString); |
| return lineNumberString; |
| |
| } |
| |
| @Override |
| public IMarker getMarker() { |
| return marker; |
| } |
| |
| @Override |
| String getMarkerTypeName() { |
| if(stale){ |
| return NLS.bind(MarkerMessages.FieldMessage_WrongType, marker.toString()); |
| } |
| try { |
| return MarkerTypesModel.getInstance().getType(marker.getType()).getLabel(); |
| } catch (CoreException e) { |
| checkIfMarkerStale() ; |
| Policy.handle(e); |
| return NLS.bind(MarkerMessages.FieldMessage_WrongType, marker.toString()); |
| } |
| } |
| |
| String getMarkerTypeId() { |
| if(stale){ |
| return NLS.bind(MarkerMessages.FieldMessage_WrongType, marker.toString()); |
| } |
| try { |
| return marker.getType(); |
| } catch (CoreException e) { |
| checkIfMarkerStale(); |
| Policy.handle(e); |
| return NLS.bind(MarkerMessages.FieldMessage_WrongType, marker.toString()); |
| } |
| } |
| |
| @Override |
| MarkerSupportItem getParent() { |
| return category; |
| } |
| |
| @Override |
| public String getPath() { |
| String folder = getAttributeValue(MarkerViewUtil.PATH_ATTRIBUTE, null); |
| if (folder != null) { |
| return folder; |
| } |
| if (stale||checkIfMarkerStale()) { |
| return MarkerSupportInternalUtilities.UNKNOWN_ATRRIBTE_VALUE_STRING; |
| } |
| IPath path = marker.getResource().getFullPath(); |
| int n = path.segmentCount() - 1; // n is the number of segments |
| // in container, not path |
| if (n <= 0) { |
| return super.getPath(); |
| } |
| folder = path.removeLastSegments(1).removeTrailingSeparator().toString(); |
| getCache().put(MarkerViewUtil.PATH_ATTRIBUTE, folder); |
| return folder; |
| } |
| |
| @Override |
| boolean isConcrete() { |
| return true; |
| } |
| |
| /** |
| * Set the category to markerCategory. |
| * |
| * @param markerCategory |
| */ |
| void setCategory(MarkerCategory markerCategory) { |
| category = markerCategory; |
| } |
| |
| /** |
| * Set the marker for the receiver. |
| * |
| * @param marker |
| * The marker to set. |
| */ |
| void setMarker(IMarker marker) { |
| this.marker = marker; |
| // reset stale |
| stale = false; |
| clearCache(); |
| } |
| |
| /** |
| * Get the cache for the receiver. Create if neccessary. |
| * |
| * @return {@link HashMap} |
| */ |
| Map<String, Object> getCache() { |
| if (cache == null) { |
| cache = new HashMap<>(2); |
| } |
| return cache; |
| } |
| |
| /** |
| * Clear the cached values for performance reasons. |
| */ |
| @Override |
| void clearCache() { |
| cache = null; |
| } |
| |
| /** |
| * @return true if the marker does not exist |
| * else false |
| */ |
| boolean checkIfMarkerStale() { |
| if (stale) { |
| return true; |
| } |
| if (marker == null || !marker.exists()) { |
| stale = true; |
| } |
| return stale; |
| } |
| |
| /** |
| * |
| * @return true if the {@link MarkerEntry} is stale,i.e. the marker does not |
| * exist. A false value can mean that marker's state of existence was |
| * never captured or that it exists.#checkIfMarkerExists() will |
| * accurately indicate its state. |
| */ |
| boolean getStaleState() { |
| return stale; |
| } |
| |
| @Override |
| public int hashCode() { |
| final int prime = 31; |
| int result = 1; |
| result = prime * result + ((marker == null) ? 0 : marker.hashCode()); |
| return result; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (!(obj instanceof MarkerEntry)) { |
| return false; |
| } |
| MarkerEntry other = (MarkerEntry) obj; |
| if (marker == null) { |
| if (other.marker != null) { |
| return false; |
| } |
| } else if (!marker.equals(other.marker)) { |
| return false; |
| } |
| return true; |
| } |
| } |