Package org.apache.commons.vfs2

Examples of org.apache.commons.vfs2.FileSystem

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        final FileObject baseFile = createScratchFolder();

        FileObject child = baseFile.resolveFile("newfile.txt");
        assertTrue(!child.exists());

        FileSystem fs = baseFile.getFileSystem();
        TestListener listener = new TestListener(child);
        fs.addListener(child, listener);

        // Create as a folder
        listener.addCreateEvent();
        child.createFolder();
        listener.assertFinished();

        // Create the folder again.  Should not get an event.
        child.createFolder();

        // Delete
        listener.addDeleteEvent();
        child.delete();
        listener.assertFinished();

        // Delete again.  Should not get an event
        child.delete();

        // Create as a file
        listener.addCreateEvent();
        child.createFile();
        listener.assertFinished();

        // Create the file again.  Should not get an event
        child.createFile();

        listener.addDeleteEvent();
        child.delete();

        // Create as a file, by writing to it.
        listener.addCreateEvent();
        child.getContent().getOutputStream().close();
        listener.assertFinished();

        // Recreate the file by writing to it
        child.getContent().getOutputStream().close();

        // Copy another file over the top
        final FileObject otherChild = baseFile.resolveFile("folder1");
        otherChild.createFolder();
        listener.addDeleteEvent();
        listener.addCreateEvent();
        child.copyFrom(otherChild, Selectors.SELECT_SELF);
        listener.assertFinished();

        fs.removeListener(child, listener);
    }
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    /**
     * Tests the contents of root of file system can be listed.
     */
    public void testRoot() throws FileSystemException
    {
        FileSystem fs = getReadFolder().getFileSystem();
        String uri = fs.getRootURI();
        final FileObject file = getManager().resolveFile(uri);
        file.getChildren();
    }
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    /**
     * Tests root of file system exists.
     */
    public void testRoot() throws FileSystemException
    {
        FileSystem fs = getReadFolder().getFileSystem();
        String uri = fs.getRootURI();
        final FileObject file = getManager().resolveFile(uri);
        //final FileObject file = getReadFolder().getFileSystem().getRoot();
        assertTrue(file.exists());
        assertTrue(file.getType() != FileType.IMAGINARY);
    }
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        assertTrue("child does not exist", !child.exists());
        assertSame(folder, child.getParent());

        // Test the parent of the root of the file system
        // TODO - refactor out test cases for layered vs originating fs
        final FileSystem fileSystem = getReadFolder().getFileSystem();
        FileObject root = fileSystem.getRoot();
        if (fileSystem.getParentLayer() == null)
        {
            // No parent layer, so parent should be null
            assertNull("root has null parent", root.getParent());
        }
        else
        {
            // Parent should be parent of parent layer.
            assertSame(fileSystem.getParentLayer().getParent(), root.getParent());
        }
    }
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    public FileObject getBaseTestFolder(final FileSystemManager manager) throws Exception
    {
        final FileObject baseFolder = config.getBaseTestFolder(manager);

        // Create an empty file system, then link in the base folder
        final FileSystem newFs = manager.createVirtualFileSystem("vfs:").getFileSystem();
        final String junctionPoint = "/some/dir";
        newFs.addJunction(junctionPoint, baseFolder);

        return newFs.resolveFile(junctionPoint);
    }
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    /**
     * Checks nested junctions are not supported.
     */
    public void testNestedJunction() throws Exception
    {
        final FileSystem fs = getManager().createVirtualFileSystem("vfs:").getFileSystem();
        final FileObject baseDir = getBaseDir();
        fs.addJunction("/a", baseDir);

        // Nested
        try
        {
            fs.addJunction("/a/b", baseDir);
            fail();
        }
        catch (final Exception e)
        {
            assertSameMessage("vfs.impl/nested-junction.error", "vfs:/a/b", e);
        }

        // At same point
        try
        {
            fs.addJunction("/a", baseDir);
            fail();
        }
        catch (final Exception e)
        {
            assertSameMessage("vfs.impl/nested-junction.error", "vfs:/a", e);
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    /**
     * Checks ancestors are created when a junction is created.
     */
    public void testAncestors() throws Exception
    {
        final FileSystem fs = getManager().createVirtualFileSystem("vfs://").getFileSystem();
        final FileObject baseDir = getBaseDir();

        // Make sure the file at the junction point and its ancestors do not exist
        FileObject file = fs.resolveFile("/a/b");
        assertFalse(file.exists());
        file = file.getParent();
        assertFalse(file.exists());
        file = file.getParent();
        assertFalse(file.exists());

        // Add the junction
        fs.addJunction("/a/b", baseDir);

        // Make sure the file at the junction point and its ancestors exist
        file = fs.resolveFile("/a/b");
        assertTrue("Does not exist", file.exists());
        file = file.getParent();
        assertTrue("Does not exist", file.exists());
        file = file.getParent();
        assertTrue("Does not exist", file.exists());
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    FileType fileType = UriParser.normalisePath(buffer);
    final String path = buffer.toString();

    // Create the temp file system if it does not exist
    // FileSystem filesystem = findFileSystem( this, (Properties) null);
    FileSystem filesystem = findFileSystem(this, properties);
    if (filesystem == null)
    {
      final FileName rootName =
          getContext().parseURI(scheme + ":" + FileName.ROOT_PATH);

      filesystem = new AppEngineLocalFileSystem(rootName, rootFile.getAbsolutePath(), properties);
      addFileSystem(this, filesystem);
    }

    // Find the file
    return filesystem.resolveFile(path);
  }
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        throws FileSystemException
    {
        // Check in the cache for the file system
        final FileName rootName = getContext().getFileSystemManager().resolveName(name, FileName.ROOT_PATH);

        FileSystem fs = getFileSystem(rootName, fileSystemOptions);

        // Locate the file
        // return fs.resolveFile(name.getPath());
        return fs.resolveFile(name);
    }
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     * @since 2.0
     */
    protected synchronized FileSystem getFileSystem(FileName rootName, final FileSystemOptions fileSystemOptions)
        throws FileSystemException
    {
        FileSystem fs = findFileSystem(rootName, fileSystemOptions);
        if (fs == null)
        {
            // Need to create the file system, and cache it
            fs = doCreateFileSystem(rootName, fileSystemOptions);
            addFileSystem(rootName, fs);
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