Examples with FileNotFoundException org.apache.commons.vfs2.FileNotFoundException used on opensource projects

Example 6 with FileNotFoundException

use of org.apache.commons.vfs2.FileNotFoundException in project artisynth_core by artisynth.

the class FileCacher method cache.

public File cache(URIx uri, File cacheFile, FileTransferMonitor monitor) throws FileSystemException {
    // For atomic operation, first download to temporary directory
    File tmpCacheFile = new File(cacheFile.getAbsolutePath() + TMP_EXTENSION);
    URIx cacheURI = new URIx(cacheFile.getAbsoluteFile());
    URIx tmpCacheURI = new URIx(tmpCacheFile.getAbsoluteFile());
    FileObject localTempFile = manager.resolveFile(tmpCacheURI.toString(true));
    FileObject localCacheFile = manager.resolveFile(cacheURI.toString(true));
    // will resolve next
    FileObject remoteFile = null;
    // loop through authenticators until we either succeed or cancel
    boolean cancel = false;
    while (remoteFile == null && cancel == false) {
        remoteFile = resolveRemote(uri);
    }
    if (remoteFile == null || !remoteFile.exists()) {
        throw new FileSystemException("Cannot find remote file <" + uri.toString() + ">", new FileNotFoundException("<" + uri.toString() + ">"));
    }
    // monitor the file transfer progress
    if (monitor != null) {
        monitor.monitor(localTempFile, remoteFile, -1, cacheFile.getName());
        monitor.start();
        monitor.fireStartEvent(localTempFile);
    }
    // transfer content
    try {
        if (remoteFile.isFile()) {
            localTempFile.copyFrom(remoteFile, Selectors.SELECT_SELF);
        } else if (remoteFile.isFolder()) {
            // final FileObject fileSystem = manager.createFileSystem(remoteFile);
            localTempFile.copyFrom(remoteFile, new AllFileSelector());
        // fileSystem.close();
        }
        if (monitor != null) {
            monitor.fireCompleteEvent(localTempFile);
        }
    } catch (Exception e) {
        // try to delete local file
        localTempFile.delete();
        throw new RuntimeException("Failed to complete transfer of " + remoteFile.getURL() + " to " + localTempFile.getURL(), e);
    } finally {
        // close files if we need to
        localTempFile.close();
        remoteFile.close();
        if (monitor != null) {
            monitor.release(localTempFile);
            monitor.stop();
        }
    }
    // now that the copy is complete, do a rename operation
    try {
        if (tmpCacheFile.isDirectory()) {
            SafeFileUtils.moveDirectory(tmpCacheFile, cacheFile);
        } else {
            SafeFileUtils.moveFile(tmpCacheFile, cacheFile);
        }
    } catch (Exception e) {
        // delete if possible
        localCacheFile.delete();
        throw new RuntimeException("Failed to atomically move " + "to " + localCacheFile.getURL(), e);
    }
    return cacheFile;
}