tmf/org.eclipse.tracecompass.tmf.ui/src/org/eclipse/tracecompass/internal/tmf/ui/project/wizards/importtrace/TarFileSystemObject.java

   1 /*******************************************************************************
   2  * Copyright (c) 2015 Ericsson
   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  *     Marc-Andre Laperle - Initial API and implementation
  11  *******************************************************************************/
  12
  13 package org.eclipse.tracecompass.internal.tmf.ui.project.wizards.importtrace;
  14
  15 import java.io.File;
  16 import java.io.IOException;
  17 import java.net.URI;
  18
  19 import org.apache.commons.compress.archivers.tar.TarArchiveEntry;
  20 import org.eclipse.core.runtime.IPath;
  21 import org.eclipse.core.runtime.Path;
  22 import org.eclipse.core.runtime.URIUtil;
  23
  24 /**
  25  * The "Tar" implementation of an IFileSystemObject, entries can also be Gzipped
  26  * and are uncompressed transparently.
  27  */
  28 class TarFileSystemObject implements IFileSystemObject {
  29
  30     private TarArchiveEntry fFileSystemObject;
  31     private String fArchivePath;
  32
  33     TarFileSystemObject(TarArchiveEntry fileSystemObject, String archivePath) {
  34         fFileSystemObject = fileSystemObject;
  35         fArchivePath = archivePath;
  36     }
  37
  38     @Override
  39     public String getName() {
  40         return new Path(fFileSystemObject.getName()).lastSegment();
  41     }
  42
  43     @Override
  44     public String getAbsolutePath() {
  45         throw new UnsupportedOperationException();
  46     }
  47
  48     @Override
  49     public boolean exists() {
  50         return true;
  51     }
  52
  53     @Override
  54     public String getSourceLocation() {
  55         File file = new File(fArchivePath);
  56         try {
  57             file = file.getCanonicalFile();
  58         } catch (IOException e) {
  59             // Will still work but might have extra ../ in the path
  60         }
  61         URI uri = file.toURI();
  62         IPath entryPath = new Path(fFileSystemObject.getName());
  63
  64         URI jarURI = entryPath.isRoot() ? URIUtil.toJarURI(uri, Path.EMPTY) : URIUtil.toJarURI(uri, entryPath);
  65         return URIUtil.toUnencodedString(jarURI);
  66     }
  67
  68     @Override
  69     public Object getRawFileSystemObject() {
  70         return fFileSystemObject;
  71     }
  72
  73     @Override
  74     public boolean isDirectory() {
  75         return fFileSystemObject.isDirectory();
  76     }
  77 }