Example usage for org.apache.commons.vfs2 FileSystemManager resolveFile

Introduction

In this page you can find the example usage for org.apache.commons.vfs2 FileSystemManager resolveFile.

Prototype

FileObject resolveFile(URL url) throws FileSystemException;

Source Link

Document

Resolves a URL into a FileObject .

Usage

From source file:ShowProperties.java

public static void main(String[] args) throws FileSystemException {
    if (args.length == 0) {
        System.err.println("Please pass the name of a file as parameter.");
        System.err.println("e.g. java org.apache.commons.vfs2.example.ShowProperties LICENSE.txt");
        return;/*from   w w  w  . ja  v a2  s  .c  om*/
    }
    for (int i = 0; i < args.length; i++) {
        try {
            FileSystemManager mgr = VFS.getManager();
            System.out.println();
            System.out.println("Parsing: " + args[i]);
            FileObject file = mgr.resolveFile(args[i]);
            System.out.println("URL: " + file.getURL());
            System.out.println("getName(): " + file.getName());
            System.out.println("BaseName: " + file.getName().getBaseName());
            System.out.println("Extension: " + file.getName().getExtension());
            System.out.println("Path: " + file.getName().getPath());
            System.out.println("Scheme: " + file.getName().getScheme());
            System.out.println("URI: " + file.getName().getURI());
            System.out.println("Root URI: " + file.getName().getRootURI());
            System.out.println("Parent: " + file.getName().getParent());
            System.out.println("Type: " + file.getType());
            System.out.println("Exists: " + file.exists());
            System.out.println("Readable: " + file.isReadable());
            System.out.println("Writeable: " + file.isWriteable());
            System.out.println("Root path: " + file.getFileSystem().getRoot().getName().getPath());
            if (file.exists()) {
                if (file.getType().equals(FileType.FILE)) {
                    System.out.println("Size: " + file.getContent().getSize() + " bytes");
                } else if (file.getType().equals(FileType.FOLDER) && file.isReadable()) {
                    FileObject[] children = file.getChildren();
                    System.out.println("Directory with " + children.length + " files");
                    for (int iterChildren = 0; iterChildren < children.length; iterChildren++) {
                        System.out.println("#" + iterChildren + ": " + children[iterChildren].getName());
                        if (iterChildren > 5) {
                            break;
                        }
                    }
                }
                System.out.println("Last modified: "
                        + DateFormat.getInstance().format(new Date(file.getContent().getLastModifiedTime())));
            } else {
                System.out.println("The file does not exist");
            }
            file.close();
        } catch (FileSystemException ex) {
            ex.printStackTrace();
        }
    }
}

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From source file:maspack.fileutil.ZipUtility.java

public static void unzip(URIx src, final File dest) throws IOException {
    dest.mkdirs();//from  ww w  .  j a  v a2s. com

    final FileSystemManager fileSystemManager = VFS.getManager();
    final FileObject zipFileObject = fileSystemManager.resolveFile(src.toString());

    try {
        final FileObject fileSystem = fileSystemManager.createFileSystem(zipFileObject);
        try {
            fileSystemManager.toFileObject(dest).copyFrom(fileSystem, new AllFileSelector());
        } finally {
            fileSystem.close();
        }
    } finally {
        zipFileObject.close();
    }
}

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From source file:fulcrum.xml.ParserTest.java

private static InputStream getInputStream(String location) {
    InputStream is = null;/*from   w  w w.  j a  v  a  2  s  . c om*/
    try {
        FileSystemManager fsManager = VFS.getManager();
        FileObject fileObj = fsManager.resolveFile(location);
        if (fileObj != null && fileObj.exists() && fileObj.isReadable()) {
            FileContent content = fileObj.getContent();
            is = content.getInputStream();
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return is;
}

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From source file:fi.mystes.synapse.mediator.vfs.VFSTestHelper.java

public static void assertFilesExists(String directory, int expectedCount) throws FileSystemException {
    FileSystemManager fsManager = VFS.getManager();
    FileObject file = fsManager.resolveFile(directory);
    FileObject[] children = file.getChildren();
    assertEquals("File count doesn't match", expectedCount, children.length);
}

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From source file:fi.mystes.synapse.mediator.vfs.VFSTestHelper.java

public static TestFile createFile(String path, String content) throws IOException {
    FileSystemManager fsManager = VFS.getManager();
    FileObject file = fsManager.resolveFile(path);
    file.getContent().getOutputStream().write(content.getBytes());
    file.getContent().close();//from  w ww  .j av  a 2  s  .  c  o m
    return new TestFileImpl(path, content, file.getContent().getSize());
}

---

From source file:gridool.sqlet.catalog.PartitioningConf.java

private static void loadSettingsFromCsv(String uri, List<Partition> list) throws SqletException {
    final InputStream is;
    try {//from  w w  w. j  av  a2  s  . c o m
        FileSystemManager fsManager = VFS.getManager();
        FileObject fileObj = fsManager.resolveFile(uri);
        FileContent fileContent = fileObj.getContent();
        is = fileContent.getInputStream();
    } catch (FileSystemException e) {
        throw new SqletException(SqletErrorType.configFailed, "failed to load a file: " + uri, e);
    }
    InputStreamReader reader = new InputStreamReader(new FastBufferedInputStream(is));
    HeaderAwareCsvReader csvReader = new HeaderAwareCsvReader(reader, ',', '"');

    final Map<String, Integer> headerMap;
    try {
        headerMap = csvReader.parseHeader();
    } catch (IOException e) {
        throw new SqletException(SqletErrorType.configFailed, "failed to parse a header: " + uri, e);
    }

    final int[] fieldIndexes = toFieldIndexes(headerMap);
    final Map<GridNode, Partition> masterSlave = new HashMap<GridNode, Partition>(128);
    while (csvReader.next()) {
        String nodeStr = csvReader.get(fieldIndexes[0]);
        String masterStr = csvReader.get(fieldIndexes[1]);
        String dbUrl = csvReader.get(fieldIndexes[2]);
        String user = csvReader.get(fieldIndexes[3]);
        String password = csvReader.get(fieldIndexes[4]);
        String mapOutput = csvReader.get(fieldIndexes[5]);

        Preconditions.checkNotNull(nodeStr, dbUrl);

        GridNode node = GridUtils.getNode(nodeStr);
        Partition p = new Partition(node, dbUrl, user, password, mapOutput);
        if (masterStr == null || masterStr.length() == 0) {
            masterSlave.put(node, p);
            list.add(p);
        } else {
            GridNode master = GridUtils.getNode(masterStr);
            Partition masterPartition = masterSlave.get(master);
            if (masterPartition == null) {
                LOG.error("Master partition is not found for slave: " + p);
            } else {
                masterPartition.addSlave(p);
            }
        }
    }
}

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From source file:com.yenlo.synapse.transport.vfs.VFSUtils.java

/**
 * Release a file item lock acquired either by the VFS listener or a sender
 *
 * @param fsManager which is used to resolve the processed file
 * @param fo representing the processed file
 *///  w  w w.  j a  va  2  s.co  m
public static void releaseLock(FileSystemManager fsManager, FileObject fo) {
    try {
        String fullPath = fo.getName().getURI();
        int pos = fullPath.indexOf("?");
        if (pos > -1) {
            fullPath = fullPath.substring(0, pos);
        }
        FileObject lockObject = fsManager.resolveFile(fullPath + ".lock");
        if (lockObject.exists()) {
            lockObject.delete();
        }
    } catch (FileSystemException e) {
        log.error("Couldn't release the lock for the file : " + fo.getName() + " after processing");
    }
}

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From source file:net.simon04.guavavfs.VirtualFiles.java

/**
 * Returns true if the files contains the same bytes.
 *
 * @throws IOException if an I/O error occurs
 *///w w w . j a v a2 s .  co  m
public static boolean equal(String file1, String file2) throws IOException {
    checkNotNull(file1);
    checkNotNull(file2);
    final FileSystemManager vfs = VFS.getManager();
    if (Objects.equals(file1, file2) || vfs.resolveFile(file1).equals(vfs.resolveFile(file2))) {
        return true;
    }

    /*
     * Some operating systems may return zero as the length for files
     * denoting system-dependent entities such as devices or pipes, in
     * which case we must fall back on comparing the bytes directly.
     */
    long len1 = length(file1);
    long len2 = length(file2);
    if (len1 != 0 && len2 != 0 && len1 != len2) {
        return false;
    }
    return asByteSource(file1).contentEquals(asByteSource(file2));
}

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From source file:com.yenlo.synapse.transport.vfs.VFSUtils.java

/**
 * Acquires a file item lock before processing the item, guaranteing that the file is not
 * processed while it is being uploaded and/or the item is not processed by two listeners
 *
 * @param fsManager used to resolve the processing file
 * @param fo representing the processing file item
 * @return boolean true if the lock has been acquired or false if not
 *///from  w ww .  jav  a  2 s.c om
public synchronized static boolean acquireLock(FileSystemManager fsManager, FileObject fo) {

    // generate a random lock value to ensure that there are no two parties
    // processing the same file
    Random random = new Random();
    byte[] lockValue = String.valueOf(random.nextLong()).getBytes();

    try {
        // check whether there is an existing lock for this item, if so it is assumed
        // to be processed by an another listener (downloading) or a sender (uploading)
        // lock file is derived by attaching the ".lock" second extension to the file name
        String fullPath = fo.getName().getURI();
        int pos = fullPath.indexOf("?");
        if (pos != -1) {
            fullPath = fullPath.substring(0, pos);
        }
        FileObject lockObject = fsManager.resolveFile(fullPath + ".lock");
        if (lockObject.exists()) {
            log.debug("There seems to be an external lock, aborting the processing of the file " + fo.getName()
                    + ". This could possibly be due to some other party already "
                    + "processing this file or the file is still being uploaded");
        } else {

            // write a lock file before starting of the processing, to ensure that the
            // item is not processed by any other parties
            lockObject.createFile();
            OutputStream stream = lockObject.getContent().getOutputStream();
            try {
                stream.write(lockValue);
                stream.flush();
                stream.close();
            } catch (IOException e) {
                lockObject.delete();
                log.error("Couldn't create the lock file before processing the file " + fullPath, e);
                return false;
            } finally {
                lockObject.close();
            }

            // check whether the lock is in place and is it me who holds the lock. This is
            // required because it is possible to write the lock file simultaneously by
            // two processing parties. It checks whether the lock file content is the same
            // as the written random lock value.
            // NOTE: this may not be optimal but is sub optimal
            FileObject verifyingLockObject = fsManager.resolveFile(fullPath + ".lock");
            if (verifyingLockObject.exists() && verifyLock(lockValue, verifyingLockObject)) {
                return true;
            }
        }
    } catch (FileSystemException fse) {
        log.error("Cannot get the lock for the file : " + maskURLPassword(fo.getName().getURI())
                + " before processing");
    }
    return false;
}

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From source file:cz.lbenda.rcp.config.TildaFileProvider.java

@Override
public FileObject findFile(FileObject fileObject, String uri, FileSystemOptions fileSystemOptions)
        throws FileSystemException {
    String userHome = System.getProperty("user.home");
    if (uri.startsWith("~")) {
        uri = uri.replace("~://", "file://" + userHome + "/");
        uri = uri.replace("~", "file://" + userHome);
    } else {//from   w  w  w . j a v  a2  s . c om
        uri = "file://" + userHome + "/" + uri.replace("home://", "");
    }
    FileSystemManager fsManager = VFS.getManager();
    return fsManager.resolveFile(uri);
}

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