com.atlassian.jira.util
Class AttachmentUtils

java.lang.Object
  extended by com.atlassian.jira.util.AttachmentUtils

public class AttachmentUtils
extends Object

Static utilities for working with the attachment files and their directories.


Nested Class Summary
static class AttachmentUtils.AttachmentAdapter
          We need some of this utility to code to work for both Attachments and ExternalAttachments (from Project Import).
 
Field Summary
static String THUMBS_SUBDIR
           
 
Constructor Summary
AttachmentUtils()
           
 
Method Summary
static void checkValidAttachmentDirectory(Issue issue)
          Checks that the Attachment directory of the given issue is right to go - writable, accessible etc.
static void checkValidTemporaryAttachmentDirectory()
           
static File getAttachmentDirectory(Issue issue)
          Returns the physical directory of the attachments for the given issue.
static File getAttachmentDirectory(Issue issue, boolean createDirectory)
          Returns the physical directory of the attachments for the given issue.
static File getAttachmentDirectory(String attachmentDirectory, String projectKey, String issueKey)
          Get the attachment directory for the given attachment base directory, project key, and issue key.
static File getAttachmentFile(Attachment attachment)
          Returns the physical File for the given Attachment.
static File getAttachmentFile(AttachmentUtils.AttachmentAdapter attachment, File attachmentDir)
          This is intended for cases where you want more control over where the attachment actually lives and you just want something to handle the look up logic for the various possible filenames an attachment can have.
static File getAttachmentFile(Issue issue, Attachment attachment)
          Returns the physical File for the given Attachment.
static File getLegacyThumbnailFile(Attachment attachment)
          Returns the old legacy file name for thumbnails http://jira.atlassian.com/browse/JRA-23311
static File getTemporaryAttachmentDirectory()
           
static File getThumbnailDirectory(Issue issue)
          Returns the physical directory of the thumbnails for the given issue, creating if necessary.
static File getThumbnailFile(Attachment attachment)
          Just like the attachments themselves, thumbnails can succumb to file system encoding problems.
static File getThumbnailFile(Issue issue, Attachment attachment)
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

THUMBS_SUBDIR

public static final String THUMBS_SUBDIR
See Also:
Constant Field Values
Constructor Detail

AttachmentUtils

public AttachmentUtils()
Method Detail

getThumbnailDirectory

public static File getThumbnailDirectory(Issue issue)
Returns the physical directory of the thumbnails for the given issue, creating if necessary.

Parameters:
issue - the issue whose thumbnail directory you want.
Returns:
The issue's thumbnail directory.

getAttachmentDirectory

public static File getAttachmentDirectory(Issue issue)
Returns the physical directory of the attachments for the given issue. This will create it if necessary.

Parameters:
issue - the issue whose attachment directory you want.
Returns:
The issue's attachment directory.

getAttachmentDirectory

public static File getAttachmentDirectory(Issue issue,
                                          boolean createDirectory)
Returns the physical directory of the attachments for the given issue. This will create it if necessary.

Parameters:
issue - the issue whose attachment directory you want.
createDirectory - If true, and the directory does not currently exist, then the directory is created.
Returns:
The issue's attachment directory.

getTemporaryAttachmentDirectory

public static File getTemporaryAttachmentDirectory()

getAttachmentDirectory

public static File getAttachmentDirectory(String attachmentDirectory,
                                          String projectKey,
                                          String issueKey)
Get the attachment directory for the given attachment base directory, project key, and issue key.

The idea is to encapsulate all of the path-joinery magic to make future refactoring easier if we ever decide to move away from attachment-base/project-key/issue-ket

Parameters:
attachmentDirectory - base of attachments
projectKey - the project key the issue belongs to
issueKey - the issue key for the issue
Returns:
the directory attachments for this issue live in

getAttachmentFile

public static File getAttachmentFile(Issue issue,
                                     Attachment attachment)
                              throws DataAccessException
Returns the physical File for the given Attachment. This method performs better as it does not need to look up the issue object.

Parameters:
issue - the issue the attachment belongs to.
attachment - the attachment.
Returns:
the file.
Throws:
DataAccessException - on failure getting required attachment info.

getAttachmentFile

public static File getAttachmentFile(Attachment attachment)
                              throws DataAccessException
Returns the physical File for the given Attachment. If you are calling this on multiple attachments for the same issue, consider using the overriden method that passes in the issue. Else, this goes to the database for each call.

Parameters:
attachment - the attachment.
Returns:
the file.
Throws:
DataAccessException - on failure getting required attachment info.

getAttachmentFile

public static File getAttachmentFile(AttachmentUtils.AttachmentAdapter attachment,
                                     File attachmentDir)
This is intended for cases where you want more control over where the attachment actually lives and you just want something to handle the look up logic for the various possible filenames an attachment can have.

In practice, this is just used during Project Import

Parameters:
attachment - it's not an attachment but it acts like one for our purposes.
attachmentDir - the directory the attachments live in. This is different that the system-wide attachment directory. i.e. this would "attachments/MKY/MKY-1" and not just "attachments"
Returns:
the actual attachment

getThumbnailFile

public static File getThumbnailFile(Attachment attachment)
Just like the attachments themselves, thumbnails can succumb to file system encoding problems. However we are going to regenerate thumbnails by only using the new naming scheme and not the legacy one. We cant do this for attachments but we can for thumbnails since they are epheral objects anyway. http://jira.atlassian.com/browse/JRA-23311

Parameters:
attachment - the attacment in play
Returns:
the full thumbnail file name

getThumbnailFile

public static File getThumbnailFile(Issue issue,
                                    Attachment attachment)

getLegacyThumbnailFile

public static File getLegacyThumbnailFile(Attachment attachment)
Returns the old legacy file name for thumbnails http://jira.atlassian.com/browse/JRA-23311

Parameters:
attachment - the attacment in play
Returns:
the full legacy thumbnail file name

checkValidAttachmentDirectory

public static void checkValidAttachmentDirectory(Issue issue)
                                          throws AttachmentException
Checks that the Attachment directory of the given issue is right to go - writable, accessible etc. Will create it if necessary.

Parameters:
issue - the issue whose attachment directory to check.
Throws:
AttachmentException - if the directory is not writable or missing and cannot be created.

checkValidTemporaryAttachmentDirectory

public static void checkValidTemporaryAttachmentDirectory()
                                                   throws AttachmentException
Throws:
AttachmentException


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