Package org.nuxeo.ecm.core.io.download

Class DownloadHelper

java.lang.Object

org.nuxeo.ecm.core.io.download.DownloadHelper

public class DownloadHelper
extends Object

Helper class related to the download service.

Since:

7.3

Field Summary

Fields

Modifier and Type	Field	Description
static final String	INLINE

Method Summary

Modifier and Type	Method	Description
static String	getContentTypeHeader(Blob blob)	Gets the Content-Type header for the given blob, per RFC 2616.
static String	getRFC2231ContentDisposition(javax.servlet.http.HttpServletRequest request, String filename)	Generates a Content-Disposition string based on the servlet request for a given filename.
static String	getRFC2231ContentDisposition(javax.servlet.http.HttpServletRequest request, String filename, Boolean inline)	Generates a Content-Disposition string for a given filename.
static void	handleClientDisconnect(IOException e)	Re-throws the passed exception except if it corresponds to a client disconnect, for which logging doesn't bring us anything.
static boolean	isClientAbortError(Throwable t)
static void	logClientAbort(Throwable t)
static ByteRange	parseRange(String range, long length)	Parses a byte range.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

INLINE

public static final String INLINE

See Also:

• Constant Field Values

Method Details

parseRange

public static ByteRange parseRange(String range,
 long length)

Parses a byte range.

Parameters:

range - the byte range as a string

length - the file length

Returns:

the byte range, or null if it couldn't be parsed.

getRFC2231ContentDisposition

public static String getRFC2231ContentDisposition(javax.servlet.http.HttpServletRequest request,
 String filename)

Generates a Content-Disposition string based on the servlet request for a given filename.

The value follows RFC2231.

Parameters:

request - the http servlet request

filename - the filename

Returns:

a full string to set as value of a Content-Disposition header

getRFC2231ContentDisposition

public static String getRFC2231ContentDisposition(javax.servlet.http.HttpServletRequest request,
 String filename,
 Boolean inline)

Generates a Content-Disposition string for a given filename.

The value follows RFC2231.

Parameters:

request - the http servlet request

filename - the filename

inline - how to set the content disposition; TRUE for inline, FALSE for attachment, or null to detect from inline request parameter or attribute

Returns:

a full string to set as value of a Content-Disposition header

Since:

7.10

getContentTypeHeader

public static String getContentTypeHeader(Blob blob)

Gets the Content-Type header for the given blob, per RFC 2616.

For example application/pdf or text/plain; charset=ISO-8859-1.

Parameters:

blob - the blob

Returns:

the header, or null if the blob has no content type information

Since:

11.1

isClientAbortError

public static boolean isClientAbortError(Throwable t)

logClientAbort

public static void logClientAbort(Throwable t)

handleClientDisconnect

public static void handleClientDisconnect(IOException e)
                                   throws IOException

Re-throws the passed exception except if it corresponds to a client disconnect, for which logging doesn't bring us anything.

Parameters:

e - the original exception

Throws:

IOException - if this is not a client disconnect