Package com.atlassian.jira.web.servlet

Class AbstractAvatarServlet

java.lang.Object

javax.servlet.GenericServlet

javax.servlet.http.HttpServlet

com.atlassian.jira.web.servlet.AbstractAvatarServlet

All Implemented Interfaces:

Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

Direct Known Subclasses:

ViewProjectAvatarServlet, ViewUserAvatarServlet

public abstract class AbstractAvatarServlet
extends javax.servlet.http.HttpServlet

Abstract servlet to serve avatar images

Since:

v4.2

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	AbstractAvatarServlet.PreprocessedInput

Constructor Summary

Constructors

Constructor	Description
AbstractAvatarServlet()

Method Summary

Modifier and Type	Method	Description
protected boolean	avatarOkForOwner(String ownerId, Avatar avatar)
protected void	defaultDoGet(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, String ownerId, Long avatarId, Avatar.Size size)	Template method that processes the GET request.
protected void	doGet(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)
protected final Optional<AvatarManager>	getAvatarManager()
protected final AvatarToStream	getAvatarToStream()
protected final Optional<FeatureManager>	getFeatureManager()
protected String	getOwnerId(javax.servlet.http.HttpServletRequest request)
protected abstract String	getOwnerIdParamName()	Slight hack to stay backwards compatible for project avatars via the 'pid' param.
protected static void	handleOutputStreamingException(javax.servlet.http.HttpServletResponse response, boolean bytesWritten, Exception e)
protected boolean	isFeatureEnabled(FeatureFlag featureFlag, boolean whenFeatureManagerNotPresent)
protected abstract AbstractAvatarServlet.PreprocessedInput	preprocessInput(String ownerId, Long avatarId, Avatar.Size size, javax.servlet.http.HttpServletResponse response)	Ensures the input is valid and if validation passes returns a valid avatarId to serve.

Methods inherited from class javax.servlet.http.HttpServlet

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

Methods inherited from class javax.servlet.GenericServlet

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

Methods inherited from class java.lang.Object

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

Constructor Details

AbstractAvatarServlet

public AbstractAvatarServlet()

Method Details

doGet

protected void doGet(javax.servlet.http.HttpServletRequest request,
 javax.servlet.http.HttpServletResponse response)
              throws javax.servlet.ServletException,
IOException

Overrides:

doGet in class javax.servlet.http.HttpServlet

Throws:

javax.servlet.ServletException

IOException

getOwnerId

protected String getOwnerId(javax.servlet.http.HttpServletRequest request)

defaultDoGet

protected void defaultDoGet(javax.servlet.http.HttpServletRequest request,
 javax.servlet.http.HttpServletResponse response,
 String ownerId,
 Long avatarId,
 Avatar.Size size)
                     throws IOException,
javax.servlet.ServletException

Template method that processes the GET request. Subclasses may override this method to change the avatar serving logic.

Throws:

IOException

javax.servlet.ServletException

avatarOkForOwner

protected boolean avatarOkForOwner(String ownerId,
 Avatar avatar)

handleOutputStreamingException

protected static void handleOutputStreamingException(javax.servlet.http.HttpServletResponse response,
 boolean bytesWritten,
 Exception e)
                                              throws IOException,
javax.servlet.ServletException

Throws:

IOException

javax.servlet.ServletException

preprocessInput

@Nonnull
protected abstract AbstractAvatarServlet.PreprocessedInput preprocessInput(String ownerId,
 Long avatarId,
 Avatar.Size size,
 javax.servlet.http.HttpServletResponse response)
                                                                    throws IOException

Ensures the input is valid and if validation passes returns a valid avatarId to serve. If validation fails, this method should send errors on the response and return a null avatar id.

Parameters:

ownerId - The owner of the avatar

avatarId - The avatarId requested

size - The size of requested avatar

response - The response to send

Returns:

The object containing avatarId to serve to the user or object containing null avatarId if validation fails

Throws:

IOException - If there's an error updating the response object

getOwnerIdParamName

protected abstract String getOwnerIdParamName()

Slight hack to stay backwards compatible for project avatars via the 'pid' param. The project avatar servlet implementation can return pid here instead of ownerId.

Returns:

The parameter used to identify the owner in the request.

getAvatarManager

protected final Optional<AvatarManager> getAvatarManager()

getFeatureManager

protected final Optional<FeatureManager> getFeatureManager()

isFeatureEnabled

protected boolean isFeatureEnabled(@Nonnull
 FeatureFlag featureFlag,
 boolean whenFeatureManagerNotPresent)

getAvatarToStream

protected final AvatarToStream getAvatarToStream()