org.apache.commons.vfs2.FileNotFoundException Java Examples

@Override
protected InputStream doGetInputStream(final int bufferSize) throws Exception {
    final HttpGet getRequest = new HttpGet(getInternalURI());
    final ClassicHttpResponse httpResponse = executeHttpUriRequest(getRequest);
    final int status = httpResponse.getCode();

    if (status == HttpStatus.SC_NOT_FOUND) {
        throw new FileNotFoundException(getName());
    }

    if (status != HttpStatus.SC_OK) {
        throw new FileSystemException("vfs.provider.http/get.error", getName(), Integer.valueOf(status));
    }

    return new MonitoredHttpResponseContentInputStream(httpResponse, bufferSize);
}
 

@Override
protected InputStream doGetInputStream(final int bufferSize) throws Exception {
    final HttpGet getRequest = new HttpGet(getInternalURI());
    final HttpResponse httpResponse = executeHttpUriRequest(getRequest);
    final int status = httpResponse.getStatusLine().getStatusCode();

    if (status == HttpStatus.SC_NOT_FOUND) {
        throw new FileNotFoundException(getName());
    }

    if (status != HttpStatus.SC_OK) {
        throw new FileSystemException("vfs.provider.http/get.error", getName(), Integer.valueOf(status));
    }

    return new MonitoredHttpResponseContentInputStream(httpResponse, bufferSize);
}
 

@Override
public boolean isReadable() throws IOException {
  try (InputStream ignored = createInputStream()){
    LOG.trace("File is readable");
    return true;
  } catch (IOException e) {
    LOG.error("Error reading file", e);
    if (e instanceof FileNotFoundException) {
      // File is not found because its either deleted or don't have permissions
      return false;
    }
   throw e;
  }
}
 

private boolean isDirectory(final URLFileName name) throws IOException {
    try {
        final DavProperty property = getProperty(name, DavConstants.PROPERTY_RESOURCETYPE);
        Node node;
        if (property != null && (node = (Node) property.getValue()) != null) {
            return node.getLocalName().equals(DavConstants.XML_COLLECTION);
        }
        return false;
    } catch (final FileNotFoundException fse) {
        throw new FileNotFolderException(name);
    }
}
 

/**
 * Creates an input stream to read the file content from. Is only called if {@link #doGetType} returns
 * {@link FileType#FILE}.
 * <p>
 * It is guaranteed that there are no open output streams for this file when this method is called.
 * </p>
 * <p>
 * The returned stream does not have to be buffered.
 * </p>
 */
@Override
protected InputStream doGetInputStream(final int bufferSize) throws Exception {
    final GetMethod getMethod = new GetMethod();
    setupMethod(getMethod);
    final int status = getAbstractFileSystem().getClient().executeMethod(getMethod);
    if (status == HttpURLConnection.HTTP_NOT_FOUND) {
        throw new FileNotFoundException(getName());
    }
    if (status != HttpURLConnection.HTTP_OK) {
        throw new FileSystemException("vfs.provider.http/get.error", getName(), Integer.valueOf(status));
    }

    return new HttpInputStream(getMethod, bufferSize);
}
 

private boolean isDirectory(final GenericURLFileName name) throws IOException {
    try {
        final DavProperty property = getProperty(name, DavConstants.PROPERTY_RESOURCETYPE);
        Node node;
        if (property != null && (node = (Node) property.getValue()) != null) {
            return node.getLocalName().equals(DavConstants.XML_COLLECTION);
        }
        return false;
    } catch (final FileNotFoundException fse) {
        throw new FileNotFolderException(name);
    }
}
 

/**
 * Creates an input stream to read the file content from.
 */
@SuppressWarnings("resource")
@Override
protected InputStream doGetInputStream(final int bufferSize) throws Exception {
    // VFS-113: avoid npe
    synchronized (getAbstractFileSystem()) {
        final ChannelSftp channel = getAbstractFileSystem().getChannel();
        try {
            // return channel.get(getName().getPath());
            // hmmm - using the in memory method is soooo much faster ...

            // TODO - Don't read the entire file into memory. Use the
            // stream-based methods on ChannelSftp once they work properly

            /*
             * final ByteArrayOutputStream outstr = new ByteArrayOutputStream(); channel.get(relPath, outstr);
             * outstr.close(); return new ByteArrayInputStream(outstr.toByteArray());
             */

            InputStream inputStream;
            try {
                // VFS-210: sftp allows to gather an input stream even from a directory and will
                // fail on first read. So we need to check the type anyway
                if (!getType().hasContent()) {
                    throw new FileSystemException("vfs.provider/read-not-file.error", getName());
                }

                inputStream = channel.get(relPath);
            } catch (final SftpException e) {
                if (e.id == ChannelSftp.SSH_FX_NO_SUCH_FILE) {
                    throw new FileNotFoundException(getName());
                }

                throw new FileSystemException(e);
            }

            return new SftpInputStream(channel, inputStream, bufferSize);

        } finally {
            // getAbstractFileSystem().putChannel(channel);
        }
    }
}