org.eclipse.tracecompass.tmf.ui/src/org/eclipse/tracecompass/tmf/ui/project/model/TmfTraceElement.java

   1 /*******************************************************************************
   2  * Copyright (c) 2010, 2015 Ericsson, École Polytechnique de Montréal
   3  *
   4  * All rights reserved. This program and the accompanying materials are
   5  * made available under the terms of the Eclipse Public License v1.0 which
   6  * accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *   Francois Chouinard - Initial API and implementation
  11  *   Bernd Hufmann - Added supplementary files handling
  12  *   Geneviève Bastien - Moved supplementary files handling to parent class,
  13  *                       added code to copy trace
  14  *   Patrick Tasse - Close editors to release resources
  15  *   Jean-Christian Kouame - added trace properties to be shown into
  16  *                           the properties view
  17  *   Geneviève Bastien - Moved trace type related methods to parent class
  18  *******************************************************************************/
  19
  20 package org.eclipse.tracecompass.tmf.ui.project.model;
  21
  22 import java.util.Arrays;
  23 import java.util.Date;
  24 import java.util.HashMap;
  25 import java.util.LinkedList;
  26 import java.util.List;
  27 import java.util.Map;
  28
  29 import org.eclipse.core.filesystem.EFS;
  30 import org.eclipse.core.filesystem.IFileInfo;
  31 import org.eclipse.core.resources.IFile;
  32 import org.eclipse.core.resources.IFolder;
  33 import org.eclipse.core.resources.IResource;
  34 import org.eclipse.core.runtime.CoreException;
  35 import org.eclipse.core.runtime.IConfigurationElement;
  36 import org.eclipse.core.runtime.IPath;
  37 import org.eclipse.core.runtime.IProgressMonitor;
  38 import org.eclipse.core.runtime.Platform;
  39 import org.eclipse.core.runtime.URIUtil;
  40 import org.eclipse.osgi.util.NLS;
  41 import org.eclipse.swt.widgets.Display;
  42 import org.eclipse.tracecompass.internal.tmf.ui.Activator;
  43 import org.eclipse.tracecompass.internal.tmf.ui.editors.ITmfEventsEditorConstants;
  44 import org.eclipse.tracecompass.tmf.core.TmfCommonConstants;
  45 import org.eclipse.tracecompass.tmf.core.event.ITmfEvent;
  46 import org.eclipse.tracecompass.tmf.core.parsers.custom.CustomTxtEvent;
  47 import org.eclipse.tracecompass.tmf.core.parsers.custom.CustomTxtTrace;
  48 import org.eclipse.tracecompass.tmf.core.parsers.custom.CustomTxtTraceDefinition;
  49 import org.eclipse.tracecompass.tmf.core.parsers.custom.CustomXmlEvent;
  50 import org.eclipse.tracecompass.tmf.core.parsers.custom.CustomXmlTrace;
  51 import org.eclipse.tracecompass.tmf.core.parsers.custom.CustomXmlTraceDefinition;
  52 import org.eclipse.tracecompass.tmf.core.project.model.TmfTraceType;
  53 import org.eclipse.tracecompass.tmf.core.project.model.TraceTypeHelper;
  54 import org.eclipse.tracecompass.tmf.core.synchronization.TimestampTransformFactory;
  55 import org.eclipse.tracecompass.tmf.core.timestamp.TmfTimestampFormat;
  56 import org.eclipse.tracecompass.tmf.core.trace.ITmfTrace;
  57 import org.eclipse.tracecompass.tmf.core.trace.ITmfTraceProperties;
  58 import org.eclipse.tracecompass.tmf.core.trace.TmfTraceManager;
  59 import org.eclipse.tracecompass.tmf.ui.editors.TmfEventsEditor;
  60 import org.eclipse.tracecompass.tmf.ui.properties.ReadOnlyTextPropertyDescriptor;
  61 import org.eclipse.ui.IActionFilter;
  62 import org.eclipse.ui.views.properties.IPropertyDescriptor;
  63 import org.eclipse.ui.views.properties.IPropertySource2;
  64
  65 import com.ibm.icu.text.DateFormat;
  66 import com.ibm.icu.text.NumberFormat;
  67
  68 /**
  69  * Implementation of trace model element representing a trace. It provides
  70  * methods to instantiate <code>ITmfTrace</code> and <code>ITmfEvent</code> as
  71  * well as editor ID from the trace type extension definition.
  72  *
  73  * @version 1.0
  74  * @author Francois Chouinard
  75  */
  76 public class TmfTraceElement extends TmfCommonProjectElement implements IActionFilter, IPropertySource2 {
  77
  78     // ------------------------------------------------------------------------
  79     // Constants
  80     // ------------------------------------------------------------------------
  81
  82     // Other attributes
  83     /**
  84      * Bundle attribute name
  85      */
  86     public static final String BUNDLE = "bundle"; //$NON-NLS-1$
  87     /**
  88      * IsLinked attribute name.
  89      */
  90     public static final String IS_LINKED = "isLinked"; //$NON-NLS-1$
  91
  92     // Property View stuff
  93     private static final String sfResourcePropertiesCategory = Messages.TmfTraceElement_ResourceProperties;
  94     private static final String sfName = Messages.TmfTraceElement_Name;
  95     private static final String sfPath = Messages.TmfTraceElement_Path;
  96     private static final String sfLocation = Messages.TmfTraceElement_Location;
  97     private static final String sfTraceType = Messages.TmfTraceElement_EventType;
  98     private static final String sfIsLinked = Messages.TmfTraceElement_IsLinked;
  99     private static final String sfSourceLocation = Messages.TmfTraceElement_SourceLocation;
 100     private static final String sfTimeOffset = Messages.TmfTraceElement_TimeOffset;
 101     private static final String sfLastModified = Messages.TmfTraceElement_LastModified;
 102     private static final String sfSize = Messages.TmfTraceElement_Size;
 103     private static final String sfTracePropertiesCategory = Messages.TmfTraceElement_TraceProperties;
 104
 105     private static final ReadOnlyTextPropertyDescriptor sfNameDescriptor = new ReadOnlyTextPropertyDescriptor(sfName, sfName);
 106     private static final ReadOnlyTextPropertyDescriptor sfPathDescriptor = new ReadOnlyTextPropertyDescriptor(sfPath, sfPath);
 107     private static final ReadOnlyTextPropertyDescriptor sfLocationDescriptor = new ReadOnlyTextPropertyDescriptor(sfLocation, sfLocation);
 108     private static final ReadOnlyTextPropertyDescriptor sfTypeDescriptor = new ReadOnlyTextPropertyDescriptor(sfTraceType, sfTraceType);
 109     private static final ReadOnlyTextPropertyDescriptor sfIsLinkedDescriptor = new ReadOnlyTextPropertyDescriptor(sfIsLinked, sfIsLinked);
 110     private static final ReadOnlyTextPropertyDescriptor sfSourceLocationDescriptor = new ReadOnlyTextPropertyDescriptor(sfSourceLocation, sfSourceLocation);
 111     private static final ReadOnlyTextPropertyDescriptor sfTimeOffsetDescriptor = new ReadOnlyTextPropertyDescriptor(sfTimeOffset, sfTimeOffset);
 112     private static final ReadOnlyTextPropertyDescriptor sfLastModifiedDescriptor = new ReadOnlyTextPropertyDescriptor(sfLastModified, sfLastModified);
 113     private static final ReadOnlyTextPropertyDescriptor sfSizeDescriptor = new ReadOnlyTextPropertyDescriptor(sfSize, sfSize);
 114
 115     private static final IPropertyDescriptor[] sfDescriptors = { sfNameDescriptor, sfPathDescriptor, sfLocationDescriptor,
 116             sfTypeDescriptor, sfIsLinkedDescriptor, sfSourceLocationDescriptor,
 117             sfTimeOffsetDescriptor, sfLastModifiedDescriptor, sfSizeDescriptor };
 118
 119     static {
 120         sfNameDescriptor.setCategory(sfResourcePropertiesCategory);
 121         sfPathDescriptor.setCategory(sfResourcePropertiesCategory);
 122         sfLocationDescriptor.setCategory(sfResourcePropertiesCategory);
 123         sfTypeDescriptor.setCategory(sfResourcePropertiesCategory);
 124         sfIsLinkedDescriptor.setCategory(sfResourcePropertiesCategory);
 125         sfSourceLocationDescriptor.setCategory(sfResourcePropertiesCategory);
 126         sfTimeOffsetDescriptor.setCategory(sfResourcePropertiesCategory);
 127         sfLastModifiedDescriptor.setCategory(sfResourcePropertiesCategory);
 128         sfSizeDescriptor.setCategory(sfResourcePropertiesCategory);
 129     }
 130
 131     private static final TmfTimestampFormat OFFSET_FORMAT = new TmfTimestampFormat("T.SSS SSS SSS s"); //$NON-NLS-1$
 132
 133     private static final int FOLDER_MAX_COUNT = 1024;
 134
 135     // ------------------------------------------------------------------------
 136     // Static initialization
 137     // ------------------------------------------------------------------------
 138
 139     // The mapping of available trace type IDs to their corresponding
 140     // configuration element
 141     private static final Map<String, IConfigurationElement> sfTraceTypeAttributes = new HashMap<>();
 142     private static final Map<String, IConfigurationElement> sfTraceTypeUIAttributes = new HashMap<>();
 143     private static final Map<String, IConfigurationElement> sfTraceCategories = new HashMap<>();
 144
 145     /**
 146      * Initialize statically at startup by getting extensions from the platform
 147      * extension registry.
 148      */
 149     public static void init() {
 150         /* Read the tmf.core "tracetype" extension point */
 151         IConfigurationElement[] config = Platform.getExtensionRegistry().getConfigurationElementsFor(TmfTraceType.TMF_TRACE_TYPE_ID);
 152         for (IConfigurationElement ce : config) {
 153             switch (ce.getName()) {
 154             case TmfTraceType.TYPE_ELEM:
 155                 String traceTypeId = ce.getAttribute(TmfTraceType.ID_ATTR);
 156                 sfTraceTypeAttributes.put(traceTypeId, ce);
 157                 break;
 158             case TmfTraceType.CATEGORY_ELEM:
 159                 String categoryId = ce.getAttribute(TmfTraceType.ID_ATTR);
 160                 sfTraceCategories.put(categoryId, ce);
 161                 break;
 162             default:
 163             }
 164         }
 165
 166         /*
 167          * Read the corresponding tmf.ui "tracetypeui" extension point for this
 168          * trace type, if it exists.
 169          */
 170         config = Platform.getExtensionRegistry().getConfigurationElementsFor(TmfTraceTypeUIUtils.TMF_TRACE_TYPE_UI_ID);
 171         for (IConfigurationElement ce : config) {
 172             String elemName = ce.getName();
 173             if (TmfTraceTypeUIUtils.TYPE_ELEM.equals(elemName)) {
 174                 String traceType = ce.getAttribute(TmfTraceTypeUIUtils.TRACETYPE_ATTR);
 175                 sfTraceTypeUIAttributes.put(traceType, ce);
 176             }
 177         }
 178     }
 179
 180     // ------------------------------------------------------------------------
 181     // Classes
 182     // ------------------------------------------------------------------------
 183
 184     private class FileInfo {
 185         long lastModified;
 186         long size;
 187         int count;
 188     }
 189
 190     // ------------------------------------------------------------------------
 191     // Attributes
 192     // ------------------------------------------------------------------------
 193
 194     private FileInfo fFileInfo;
 195
 196     // ------------------------------------------------------------------------
 197     // Constructors
 198     // ------------------------------------------------------------------------
 199     /**
 200      * Constructor. Creates trace model element under the trace folder.
 201      *
 202      * @param name
 203      *            The name of trace
 204      * @param trace
 205      *            The trace resource.
 206      * @param parent
 207      *            The parent element (trace folder)
 208      */
 209     public TmfTraceElement(String name, IResource trace, TmfTraceFolder parent) {
 210         super(name, trace, parent);
 211     }
 212
 213     /**
 214      * Constructor. Creates trace model element under the experiment folder.
 215      *
 216      * @param name
 217      *            The name of trace
 218      * @param trace
 219      *            The trace resource.
 220      * @param parent
 221      *            The parent element (experiment folder)
 222      */
 223     public TmfTraceElement(String name, IResource trace, TmfExperimentElement parent) {
 224         super(name, trace, parent);
 225     }
 226
 227     // ------------------------------------------------------------------------
 228     // Operations
 229     // ------------------------------------------------------------------------
 230
 231     /**
 232      * Instantiate a <code>ITmfTrace</code> object based on the trace type and
 233      * the corresponding extension.
 234      *
 235      * @return the <code>ITmfTrace</code> or <code>null</code> for an error
 236      */
 237     @Override
 238     public ITmfTrace instantiateTrace() {
 239         try {
 240
 241             // make sure that supplementary folder exists
 242             refreshSupplementaryFolder();
 243
 244             String traceTypeId = getTraceType();
 245             if (traceTypeId != null) {
 246                 if (CustomTxtTrace.isCustomTraceTypeId(traceTypeId)) {
 247                     for (CustomTxtTraceDefinition def : CustomTxtTraceDefinition.loadAll()) {
 248                         String id = CustomTxtTrace.buildTraceTypeId(def.categoryName, def.definitionName);
 249                         if (traceTypeId.equals(id)) {
 250                             return new CustomTxtTrace(def);
 251                         }
 252                     }
 253                 }
 254                 if (CustomXmlTrace.isCustomTraceTypeId(traceTypeId)) {
 255                     for (CustomXmlTraceDefinition def : CustomXmlTraceDefinition.loadAll()) {
 256                         String id = CustomXmlTrace.buildTraceTypeId(def.categoryName, def.definitionName);
 257                         if (traceTypeId.equals(id)) {
 258                             return new CustomXmlTrace(def);
 259                         }
 260                     }
 261                 }
 262                 IConfigurationElement ce = sfTraceTypeAttributes.get(traceTypeId);
 263                 if (ce == null) {
 264                     return null;
 265                 }
 266                 ITmfTrace trace = (ITmfTrace) ce.createExecutableExtension(TmfTraceType.TRACE_TYPE_ATTR);
 267                 return trace;
 268             }
 269         } catch (CoreException e) {
 270             Activator.getDefault().logError("Error instantiating ITmfTrace object for trace " + getName(), e); //$NON-NLS-1$
 271         }
 272         return null;
 273     }
 274
 275     /**
 276      * Instantiate a <code>ITmfEvent</code> object based on the trace type and
 277      * the corresponding extension.
 278      *
 279      * @return the <code>ITmfEvent</code> or <code>null</code> for an error
 280      */
 281     public ITmfEvent instantiateEvent() {
 282         try {
 283             String traceTypeId = getTraceType();
 284             if (traceTypeId != null) {
 285                 if (CustomTxtTrace.isCustomTraceTypeId(traceTypeId)) {
 286                     for (CustomTxtTraceDefinition def : CustomTxtTraceDefinition.loadAll()) {
 287                         String id = CustomTxtTrace.buildTraceTypeId(def.categoryName, def.definitionName);
 288                         if (traceTypeId.equals(id)) {
 289                             return new CustomTxtEvent(def);
 290                         }
 291                     }
 292                 }
 293                 if (CustomXmlTrace.isCustomTraceTypeId(traceTypeId)) {
 294                     for (CustomXmlTraceDefinition def : CustomXmlTraceDefinition.loadAll()) {
 295                         String id = CustomXmlTrace.buildTraceTypeId(def.categoryName, def.definitionName);
 296                         if (traceTypeId.equals(id)) {
 297                             return new CustomXmlEvent(def);
 298                         }
 299                     }
 300                 }
 301                 IConfigurationElement ce = sfTraceTypeAttributes.get(traceTypeId);
 302                 if (ce == null) {
 303                     return null;
 304                 }
 305                 ITmfEvent event = (ITmfEvent) ce.createExecutableExtension(TmfTraceType.EVENT_TYPE_ATTR);
 306                 return event;
 307             }
 308         } catch (CoreException e) {
 309             Activator.getDefault().logError("Error instantiating ITmfEvent object for trace " + getName(), e); //$NON-NLS-1$
 310         }
 311         return null;
 312     }
 313
 314     @Override
 315     public String getEditorId() {
 316         String traceTypeId = getTraceType();
 317         if (traceTypeId != null) {
 318             if (CustomTxtTrace.isCustomTraceTypeId(traceTypeId) || CustomXmlTrace.isCustomTraceTypeId(traceTypeId)) {
 319                 return TmfEventsEditor.ID;
 320             }
 321
 322             IConfigurationElement ce = sfTraceTypeUIAttributes.get(getTraceType());
 323             if (ce == null) {
 324                 /* This trace type does not define UI attributes */
 325                 return null;
 326             }
 327             IConfigurationElement[] defaultEditorCE = ce.getChildren(TmfTraceTypeUIUtils.DEFAULT_EDITOR_ELEM);
 328             if (defaultEditorCE.length == 1) {
 329                 return defaultEditorCE[0].getAttribute(TmfTraceType.ID_ATTR);
 330             }
 331         }
 332         return null;
 333     }
 334
 335     /**
 336      * Returns the file resource used to store bookmarks after creating it if
 337      * necessary. If the trace resource is a file, it is returned directly. If
 338      * the trace resource is a folder, a linked file is returned. The file will
 339      * be created if it does not exist.
 340      *
 341      * @return the bookmarks file
 342      * @throws CoreException
 343      *             if the bookmarks file cannot be created
 344      * @since 2.0
 345      */
 346     @Override
 347     public IFile createBookmarksFile() throws CoreException {
 348         IFile file = getBookmarksFile();
 349         if (fResource instanceof IFolder) {
 350             return createBookmarksFile(getProject().getTracesFolder().getResource(), ITmfEventsEditorConstants.TRACE_EDITOR_INPUT_TYPE);
 351         }
 352         return file;
 353     }
 354
 355     /**
 356      * Returns the file resource used to store bookmarks. The file may not
 357      * exist.
 358      *
 359      * @return the bookmarks file
 360      * @since 2.0
 361      */
 362     @Override
 363     public IFile getBookmarksFile() {
 364         IFile file = null;
 365         if (fResource instanceof IFile) {
 366             file = (IFile) fResource;
 367         } else if (fResource instanceof IFolder) {
 368             final IFolder folder = (IFolder) fResource;
 369             file = folder.getFile(getName() + '_');
 370         }
 371         return file;
 372     }
 373
 374     /**
 375      * Returns the <code>TmfTraceElement</code> located under the
 376      * <code>TmfTracesFolder</code>.
 377      *
 378      * @return <code>this</code> if this element is under the
 379      *         <code>TmfTracesFolder</code> else the corresponding
 380      *         <code>TmfTraceElement</code> if this element is under
 381      *         <code>TmfExperimentElement</code>.
 382      */
 383     public TmfTraceElement getElementUnderTraceFolder() {
 384
 385         // If trace is under an experiment, return original trace from the
 386         // traces folder
 387         if (getParent() instanceof TmfExperimentElement) {
 388             for (TmfTraceElement aTrace : getProject().getTracesFolder().getTraces()) {
 389                 if (aTrace.getElementPath().equals(getElementPath())) {
 390                     return aTrace;
 391                 }
 392             }
 393         }
 394         return this;
 395     }
 396
 397     @Override
 398     public String getTypeName() {
 399         return Messages.TmfTraceElement_TypeName;
 400     }
 401
 402     // ------------------------------------------------------------------------
 403     // IActionFilter
 404     // ------------------------------------------------------------------------
 405
 406     @Override
 407     public boolean testAttribute(Object target, String name, String value) {
 408         if (name.equals(IS_LINKED)) {
 409             boolean isLinked = getResource().isLinked();
 410             return Boolean.toString(isLinked).equals(value);
 411         }
 412         return false;
 413     }
 414
 415     // ------------------------------------------------------------------------
 416     // IPropertySource2
 417     // ------------------------------------------------------------------------
 418
 419     @Override
 420     public Object getEditableValue() {
 421         return null;
 422     }
 423
 424     /**
 425      * Get the trace properties of this traceElement if the corresponding trace
 426      * is opened in an editor
 427      *
 428      * @return a map with the names and values of the trace properties
 429      *         respectively as keys and values
 430      */
 431     private Map<String, String> getTraceProperties() {
 432         for (ITmfTrace openedTrace : TmfTraceManager.getInstance().getOpenedTraces()) {
 433             for (ITmfTrace singleTrace : TmfTraceManager.getTraceSet(openedTrace)) {
 434                 if (getElementUnderTraceFolder().getResource().equals(singleTrace.getResource())) {
 435                     if (singleTrace instanceof ITmfTraceProperties) {
 436                         ITmfTraceProperties traceProperties = (ITmfTraceProperties) singleTrace;
 437                         return traceProperties.getTraceProperties();
 438                     }
 439                 }
 440             }
 441         }
 442         return new HashMap<>();
 443     }
 444
 445     @Override
 446     public IPropertyDescriptor[] getPropertyDescriptors() {
 447         Map<String, String> traceProperties = getTraceProperties();
 448         if (!traceProperties.isEmpty()) {
 449             IPropertyDescriptor[] propertyDescriptorArray = new IPropertyDescriptor[traceProperties.size() + sfDescriptors.length];
 450             int index = 0;
 451             for (Map.Entry<String, String> varName : traceProperties.entrySet()) {
 452                 ReadOnlyTextPropertyDescriptor descriptor = new ReadOnlyTextPropertyDescriptor(this.getName() + "_" + varName.getKey(), varName.getKey()); //$NON-NLS-1$
 453                 descriptor.setCategory(sfTracePropertiesCategory);
 454                 propertyDescriptorArray[index] = descriptor;
 455                 index++;
 456             }
 457             for (int i = 0; i < sfDescriptors.length; i++) {
 458                 propertyDescriptorArray[index] = sfDescriptors[i];
 459                 index++;
 460             }
 461             return propertyDescriptorArray;
 462         }
 463         return Arrays.copyOf(sfDescriptors, sfDescriptors.length);
 464     }
 465
 466     @Override
 467     public Object getPropertyValue(Object id) {
 468
 469         if (sfName.equals(id)) {
 470             return getName();
 471         }
 472
 473         if (sfPath.equals(id)) {
 474             return getPath().toString();
 475         }
 476
 477         if (sfLocation.equals(id)) {
 478             return URIUtil.toUnencodedString(getLocation());
 479         }
 480
 481         if (sfIsLinked.equals(id)) {
 482             return Boolean.valueOf(getResource().isLinked()).toString();
 483         }
 484
 485         if (sfSourceLocation.equals(id)) {
 486             try {
 487                 String sourceLocation = getElementUnderTraceFolder().getResource().getPersistentProperty(TmfCommonConstants.SOURCE_LOCATION);
 488                 if (sourceLocation != null) {
 489                     return sourceLocation;
 490                 }
 491             } catch (CoreException e) {
 492             }
 493             return ""; //$NON-NLS-1$
 494         }
 495
 496         if (sfLastModified.equals(id)) {
 497             FileInfo fileInfo = getFileInfo();
 498             if (fileInfo == null) {
 499                 return ""; //$NON-NLS-1$
 500             }
 501             long date = fileInfo.lastModified;
 502             DateFormat format = DateFormat.getDateTimeInstance(DateFormat.LONG, DateFormat.MEDIUM);
 503             return format.format(new Date(date));
 504         }
 505
 506         if (sfSize.equals(id)) {
 507             FileInfo fileInfo = getFileInfo();
 508             if (fileInfo == null) {
 509                 return ""; //$NON-NLS-1$
 510             }
 511             if (getResource() instanceof IFolder) {
 512                 if (fileInfo.count <= FOLDER_MAX_COUNT) {
 513                     return NLS.bind(Messages.TmfTraceElement_FolderSizeString,
 514                             NumberFormat.getInstance().format(fileInfo.size), fileInfo.count);
 515                 }
 516                 return NLS.bind(Messages.TmfTraceElement_FolderSizeOverflowString,
 517                         NumberFormat.getInstance().format(fileInfo.size), FOLDER_MAX_COUNT);
 518             }
 519             return NLS.bind(Messages.TmfTraceElement_FileSizeString, NumberFormat.getInstance().format(fileInfo.size));
 520         }
 521
 522         if (sfTraceType.equals(id)) {
 523             if (getTraceType() != null) {
 524                 TraceTypeHelper helper = TmfTraceType.getTraceType(getTraceType());
 525                 if (helper != null) {
 526                     return helper.getLabel();
 527                 }
 528             }
 529             return ""; //$NON-NLS-1$
 530         }
 531
 532         if (sfTimeOffset.equals(id)) {
 533             long offset = TimestampTransformFactory.getTimestampTransform(getElementUnderTraceFolder().getResource()).transform(0);
 534             if (offset != 0) {
 535                 return OFFSET_FORMAT.format(offset);
 536             }
 537             return ""; //$NON-NLS-1$
 538         }
 539
 540         Map<String, String> traceProperties = getTraceProperties();
 541         if (id != null && !traceProperties.isEmpty()) {
 542             String key = (String) id;
 543             key = key.substring(this.getName().length() + 1); // remove name_
 544             String value = traceProperties.get(key);
 545             return value;
 546         }
 547
 548         return null;
 549     }
 550
 551     private FileInfo getFileInfo() {
 552         /* FileInfo is needed for both 'last modified' and 'size' properties.
 553          * It is freshly computed for one, and reused for the other, then
 554          * cleared so that the information can be refreshed the next time.
 555          */
 556         FileInfo fileInfo;
 557         if (fFileInfo == null) {
 558             try {
 559                 fileInfo = computeFileInfo(new FileInfo(), getResource());
 560             } catch (CoreException e) {
 561                 return null;
 562             }
 563             fFileInfo = fileInfo;
 564         } else {
 565             fileInfo = fFileInfo;
 566             fFileInfo = null;
 567         }
 568         return fileInfo;
 569     }
 570
 571     private FileInfo computeFileInfo(FileInfo fileInfo, IResource resource) throws CoreException {
 572         if (fileInfo == null || fileInfo.count > FOLDER_MAX_COUNT) {
 573             return fileInfo;
 574         }
 575         if (resource instanceof IFolder) {
 576             IFolder folder = (IFolder) resource;
 577             for (IResource member : folder.members()) {
 578                 computeFileInfo(fileInfo, member);
 579             }
 580             return fileInfo;
 581         }
 582         IFileInfo info = EFS.getStore(resource.getLocationURI()).fetchInfo();
 583         fileInfo.lastModified = Math.max(fileInfo.lastModified, info.getLastModified());
 584         fileInfo.size += info.getLength();
 585         fileInfo.count++;
 586         return fileInfo;
 587     }
 588
 589     @Override
 590     public void resetPropertyValue(Object id) {
 591     }
 592
 593     @Override
 594     public void setPropertyValue(Object id, Object value) {
 595     }
 596
 597     @Override
 598     public boolean isPropertyResettable(Object id) {
 599         return false;
 600     }
 601
 602     @Override
 603     public boolean isPropertySet(Object id) {
 604         return false;
 605     }
 606
 607     /**
 608      * Copy this trace in the trace folder. No other parameters are mentioned so
 609      * the trace is copied in this element's project trace folder
 610      *
 611      * @param newName
 612      *            The new trace name
 613      * @return the new Resource object
 614      * @since 2.0
 615      */
 616     public TmfTraceElement copy(String newName) {
 617         TmfTraceFolder folder = (TmfTraceFolder) getParent();
 618         IResource res = super.copy(newName, false);
 619         for (TmfTraceElement trace : folder.getTraces()) {
 620             if (trace.getResource().equals(res)) {
 621                 return trace;
 622             }
 623         }
 624         return null;
 625     }
 626
 627     /**
 628      * Close opened editors associated with this trace.
 629      *
 630      * @since 2.0
 631      */
 632     @Override
 633     public void closeEditors() {
 634         super.closeEditors();
 635
 636         // Close experiments that contain the trace if open
 637         if (getParent() instanceof TmfTraceFolder) {
 638             TmfExperimentFolder experimentsFolder = getProject().getExperimentsFolder();
 639             for (TmfExperimentElement experiment : experimentsFolder.getExperiments()) {
 640                 for (TmfTraceElement trace : experiment.getTraces()) {
 641                     if (trace.getElementPath().equals(getElementPath())) {
 642                         experiment.closeEditors();
 643                         break;
 644                     }
 645                 }
 646             }
 647         } else if (getParent() instanceof TmfExperimentElement) {
 648             TmfExperimentElement experiment = (TmfExperimentElement) getParent();
 649             experiment.closeEditors();
 650         }
 651     }
 652
 653     /**
 654      * Delete the trace resource, remove it from experiments and delete its
 655      * supplementary files
 656      *
 657      * @param progressMonitor
 658      *            a progress monitor, or null if progress reporting is not
 659      *            desired
 660      *
 661      * @throws CoreException
 662      *             thrown when IResource.delete fails
 663      * @since 2.2
 664      */
 665     public void delete(IProgressMonitor progressMonitor) throws CoreException {
 666         // Close editors in UI Thread
 667         Display.getDefault().syncExec(new Runnable() {
 668             @Override
 669             public void run() {
 670                 closeEditors();
 671             }
 672         });
 673
 674         IPath path = fResource.getLocation();
 675         if (path != null) {
 676             if (getParent() instanceof TmfTraceFolder) {
 677                 TmfExperimentFolder experimentFolder = getProject().getExperimentsFolder();
 678
 679                 // Propagate the removal to traces
 680                 for (TmfExperimentElement experiment : experimentFolder.getExperiments()) {
 681                     List<TmfTraceElement> toRemove = new LinkedList<>();
 682                     for (TmfTraceElement trace : experiment.getTraces()) {
 683                         if (trace.getElementPath().equals(getElementPath())) {
 684                             toRemove.add(trace);
 685                         }
 686                     }
 687                     for (TmfTraceElement child : toRemove) {
 688                         experiment.removeTrace(child);
 689                     }
 690                 }
 691
 692                 // Delete supplementary files
 693                 deleteSupplementaryFolder();
 694
 695             } else if (getParent() instanceof TmfExperimentElement) {
 696                 TmfExperimentElement experimentElement = (TmfExperimentElement) getParent();
 697                 experimentElement.removeTrace(this);
 698             }
 699         }
 700
 701         // Finally, delete the trace
 702         fResource.delete(true, progressMonitor);
 703     }
 704
 705 }