org.mmbase.servlet
Class AttachmentServlet

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          org.mmbase.servlet.MMBaseServlet
              org.mmbase.servlet.BridgeServlet
                  org.mmbase.servlet.HandleServlet
                      org.mmbase.servlet.AttachmentServlet

All Implemented Interfaces:

Serializable, Servlet, ServletConfig, MMBaseStarter

public class AttachmentServlet
extends HandleServlet

Serves attachments. An attachments can be any object, as long as it has a byte[] field named 'handle'. Also the fields 'filename', 'mimetype' and 'title' can be taken into consideration by this servlet and preferably the node has also those fields.

Since:

MMBase-1.6

Version:

$Id: AttachmentServlet.java 35335 2009-05-21 08:14:41Z michiel $

Author:

Michiel Meeuwissen

See Also:

HandleServlet, ImageServlet, Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.mmbase.servlet.BridgeServlet

BridgeServlet.QueryParts

Field Summary

Fields inherited from class org.mmbase.servlet.HandleServlet

legalizeFileName

Fields inherited from class org.mmbase.servlet.BridgeServlet

FILE_PATTERN, MESSAGE_ATTRIBUTE

Fields inherited from class org.mmbase.servlet.MMBaseServlet

mmbase, retryAfter

Constructor Summary

AttachmentServlet()

Method Summary

protected Map<String,Integer>	getAssociations() On default, servlets are not associated with any function.
protected Cloud	getClassCloud() Obtains a cloud using 'class' security.
protected String	getMimeType(Node node) Determines the mimetype.
String	getServletInfo() Returns information about this servlet.

Methods inherited from class org.mmbase.servlet.HandleServlet

doGet, getContentDisposition, getFileName, getSize, init, main, sendBytes, sendBytes, setCacheControl, setContent, setExpires

Methods inherited from class org.mmbase.servlet.BridgeServlet

desperatelyGetNode, findCloud, getAnonymousCloud, getCloud, getCloudName, getLastModified, getNode, getServedNode, readQuery, readQuery, readQueryFromRequestURI, readServletPath

Methods inherited from class org.mmbase.servlet.MMBaseServlet

associateMapping, checkInited, decRefCount, destroy, getBasePath, getMMBase, getRequestURL, getServletByAssociation, getServletByMapping, getServletMappings, getServletMappingsByAssociation, incRefCount, service, setInitException, setMMBase

Methods inherited from class javax.servlet.http.HttpServlet

doDelete, doHead, doOptions, doPost, doPut, doTrace, service

Methods inherited from class javax.servlet.GenericServlet

getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletName, init, log, log

Methods inherited from class java.lang.Object

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

Constructor Detail

AttachmentServlet

public AttachmentServlet()

Method Detail

getServletInfo

public String getServletInfo()

Description copied from class: MMBaseServlet

Returns information about this servlet. Don't forget to override it.

Specified by:

getServletInfo in interface Servlet

Overrides:

getServletInfo in class MMBaseServlet

getAssociations

protected Map<String,Integer> getAssociations()

Description copied from class: MMBaseServlet

On default, servlets are not associated with any function. This function is called in the init method.

Overrides:

getAssociations in class HandleServlet

Returns:

A map of Strings (function) -> Integer (priority). Never null.

getClassCloud

protected final Cloud getClassCloud()

Description copied from class: BridgeServlet

Obtains a cloud using 'class' security. If e.g. you authorize org.mmbase.servlet.ImageServlet by class-security for read all rights, it will be used.

Overrides:

getClassCloud in class HandleServlet

getMimeType

protected String getMimeType(Node node)

Determines the mimetype. Can be overridden.

Overrides:

getMimeType in class HandleServlet