Example usage for org.apache.commons.vfs FileObject exists

Introduction

In this page you can find the example usage for org.apache.commons.vfs FileObject exists.

Prototype

public boolean exists() throws FileSystemException;

Source Link

Document

Determines if this file exists.

Usage

From source file:pt.webdetails.di.baserver.utils.repositoryPlugin.ui.ToolbarController.java

private boolean saveXMLFileToVfs(EngineMetaInterface meta) {
    Spoon spoon = this.getSpoon();
    LogChannelInterface spoonLog = spoon.getLog();
    Shell spoonShell = spoon.getShell();

    if (spoonLog.isBasic()) {
        spoonLog.logBasic("Save file as...");
    }//from  w ww.  j  a  va 2s .c o m

    VfsDialogFileInfo fileInfo = this.getLastOpenedFile();
    FileObject rootFile = fileInfo.getRootFile();
    FileObject initialFile = fileInfo.getInitialFile();
    if (rootFile == null || initialFile == null) {
        return false;
    }

    String filename = null;
    FileObject selectedFile = spoon.getVfsFileChooserDialog(rootFile, initialFile).open(spoonShell, null,
            this.getConstants().getVfsScheme(), true, "Untitled", Const.STRING_TRANS_AND_JOB_FILTER_EXT,
            Const.getTransformationAndJobFilterNames(), VfsFileChooserDialog.VFS_DIALOG_SAVEAS);

    if (selectedFile != null) {
        filename = selectedFile.getName().getFriendlyURI();
    }

    if (filename != null) {
        Collection<String> extensionMasks = new ArrayList<String>();
        for (String composedExtension : meta.getFilterExtensions()) {
            // extension given by meta.getFilterExtensions may contain elements
            // with more than one extension mask separated by ';'.  E.g. "*.ktr;*.kjb"
            String[] extensions = composedExtension.split(";");
            for (String simpleExtension : extensions) {
                extensionMasks.add(simpleExtension);
            }
        }

        filename = this.addDefaultExtensionIfMissing(filename, extensionMasks, meta.getDefaultExtension());
        // See if the file already exists...
        boolean overrideFile = true;
        try {
            FileObject f = KettleVFS.getFileObject(filename);
            if (f.exists()) {
                overrideFile = this.promptShouldOverrideFile();
            }
        } catch (Exception e) {
            // TODO do we want to show an error dialog here? My first guess
            // is not, but we might.
        }
        if (overrideFile) {
            spoon.save(meta, filename, false);
        }
    }
    return false;
}

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From source file:r.base.Files.java

/**
 * Utility function to extract information about files on the user's file systems.
 *
 * @param context  current call Context/*from  w  w  w  .j av  a2  s  .c o m*/
 * @param paths the list of files for which to return information
 * @return list column-oriented table of file information
 * @throws FileSystemException
 */
@Primitive("file.info")
public static ListVector fileInfo(@Current Context context, StringVector paths) throws FileSystemException {

    DoubleVector.Builder size = new DoubleVector.Builder();
    LogicalVector.Builder isdir = new LogicalVector.Builder();
    IntVector.Builder mode = (IntVector.Builder) new IntVector.Builder().setAttribute(Symbols.CLASS,
            new StringVector("octmode"));
    DoubleVector.Builder mtime = new DoubleVector.Builder();
    StringVector.Builder exe = new StringVector.Builder();

    for (String path : paths) {
        FileObject file = context.resolveFile(path);
        if (file.exists()) {
            if (file.getType() == FileType.FILE) {
                size.add((int) file.getContent().getSize());
            } else {
                size.add(0);
            }
            isdir.add(file.getType() == FileType.FOLDER);
            mode.add(mode(file));
            try {
                mtime.add(file.getContent().getLastModifiedTime());
            } catch (Exception e) {
                mtime.add(0);
            }
            exe.add(file.getName().getBaseName().endsWith(".exe") ? "yes" : "no");
        } else {
            size.add(IntVector.NA);
            isdir.add(IntVector.NA);
            mode.add(IntVector.NA);
            mtime.add(DoubleVector.NA);
            exe.add(StringVector.NA);
        }
    }

    return ListVector.newNamedBuilder().add("size", size).add("isdir", isdir).add("mode", mode)
            .add("mtime", mtime).add("ctime", mtime).add("atime", mtime).add("exe", exe).build();
}

---

From source file:r.base.Files.java

private static void delete(FileObject file, boolean recursive) throws FileSystemException {
    if (file.exists()) {
        if (file.getType() == FileType.FILE) {
            file.delete();//from ww w . j a va 2s . c  o m
        } else if (file.getType() == FileType.FOLDER) {
            if (file.getChildren().length == 0) {
                file.delete();
            } else if (recursive) {
                file.delete();
            }
        }
    }
}

---

From source file:r.base.Files.java

/**
 * Helper function to extract a zip entry to the given folder.
 *///w  w w.  j  a  v  a2 s  .  co m
private static void unzipExtract(ZipInputStream zin, ZipEntry entry, FileObject exdir, boolean junkpaths,
        boolean overwrite) throws IOException {
    if (junkpaths) {
        throw new EvalException("unzip(junpaths=false) not yet implemented");
    }

    FileObject exfile = exdir.resolveFile(entry.getName());
    if (exfile.exists() && !overwrite) {
        throw new EvalException("file to be extracted '%s' already exists", exfile.getName().getURI());
    }
    OutputStream out = exfile.getContent().getOutputStream();
    try {

        byte buffer[] = new byte[64 * 1024];
        int bytesRead;
        while ((bytesRead = zin.read(buffer)) != -1) {
            out.write(buffer, 0, bytesRead);
        }
    } finally {
        out.close();
    }
}

---

From source file:unitTests.dataspaces.AbstractLimitingFileObjectTest.java

private void createRealFileChild() throws FileSystemException {
    realFile.createFolder();/*w  w  w  .  ja v  a2s. c o m*/
    final FileObject childFile = realFile.resolveFile(CHILD_NAME);
    childFile.createFile();
    assertTrue(childFile.exists());
}

---

From source file:unitTests.dataspaces.VFSApplicationScratchSpaceImplTest.java

private void assertIsExistingEmptyDirectory(final String path) throws FileSystemException {
    final FileObject fPartialDS = fileSystemManager.resolveFile(path);

    assertTrue(fPartialDS.exists());
    assertEquals(FileType.FOLDER, fPartialDS.getType());
    assertEquals(0, fPartialDS.getChildren().length);
}

---

From source file:unitTests.dataspaces.VFSFactoryTest.java

@Test
public void testLocalFileProvider() throws Exception {
    FileObject fo = null;
    try {/*from  w  w w. j a va  2 s.c o  m*/
        fo = manager.resolveFile(testFile.getCanonicalPath());
        assertTrue(fo.exists());

        final InputStream ios = fo.getContent().getInputStream();
        final BufferedReader reader = new BufferedReader(new InputStreamReader(ios));
        assertEquals("test", reader.readLine());
    } finally {
        if (fo != null)
            fo.close();
    }
}

---

From source file:unitTests.dataspaces.VFSMountManagerHelperTest.java

/**
 * Tests mounting only one valid FileSystem
 * @throws Exception//from   w  w w.ja v a2  s  . co m
 */
@Test
public void testMountOk() throws Exception {
    logger.info("*************** testMountOk");
    String[] validUrls = server.getVFSRootURLs();
    for (String validUrl : validUrls) {
        FileObject mounted = VFSMountManagerHelper.mount(validUrl);
        Assert.assertTrue(mounted.exists());
    }
}

---

From source file:unitTests.dataspaces.VFSMountManagerHelperTest.java

/**
 * Tests closing all FileSystems//from   w  w  w  .jav  a  2 s  . c o m
 * @throws Exception
 */
@Ignore("vfs close file system doesn't seem to work properly")
@Test
public void testCloseFileSystems() throws Exception {
    logger.info("*************** testCloseFileSystems");
    String[] validUrls = server.getVFSRootURLs();
    ArrayList<FileObject> fos = new ArrayList<FileObject>();
    for (String validUrl : validUrls) {
        FileObject mounted = VFSMountManagerHelper.mount(validUrl);
        Assert.assertTrue(mounted.exists());
        fos.add(mounted);
    }

    VFSMountManagerHelper.closeFileSystems(Arrays.asList(validUrls));

    boolean onlyExceptions = true;
    for (FileObject closedFo : fos) {
        try {
            FileObject toto = closedFo.resolveFile("toto");
            toto.createFile();
            onlyExceptions = false;
            logger.error(toto.getURL() + " exists : " + toto.exists());
        } catch (FileSystemException e) {
            // this should occur
        }
    }
    Assert.assertTrue("Only Exceptions received", onlyExceptions);
}

---

From source file:unitTests.dataspaces.VFSNodeScratchSpaceImplTest.java

private void assertIsExistingEmptyDirectory(String path) throws FileSystemException {
    FileObject fPartialDS = fileSystemManager.resolveFile(path);

    assertTrue(fPartialDS.exists());
    assertEquals(FileType.FOLDER, fPartialDS.getType());
    assertEquals(0, fPartialDS.getChildren().length);
}

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