com.day.cq.dam.commons.util

Class UIHelper

java.lang.Object

com.day.cq.dam.commons.util.UIHelper

public class UIHelper
extends java.lang.Object

This class provides various utility methods pertaining to DAM required in presentation/user interface.

Constructor Summary

Constructors

Constructor and Description
UIHelper()

Method Summary

Modifier and Type	Method and Description
static boolean	canRenderOnWeb(java.lang.String mimeType) Returns true if the given mime type can be rendered in HTML by browser.
static Privilege[]	getAllPermission(AccessControlManager acm, Resource res) returns the privileges the session has for the given resource
static java.lang.String	getAltText(Resource resource) Returns alternate text that is to be used in place of the image when displaying the resource's thumbnail
static Rendition	getBestfitRendition(Asset asset, int width) Returns best fit rendition, whose width is nearer to given width.
static Rendition	getBestFitRendtionBasedOnSize(Asset asset, long size) Returns best fit rendition, whose size is nearer to given size.
static Rendition	getBestFitRendtionBasedOnSize(Asset asset, long size, boolean preferOriginal) Returns best fit rendition, whose size is nearer to given size.
static long	getCacheKiller(Node node) Returns the cache killer number that can be appended the resource request.
static java.lang.String	getCheckedOutby(Asset asset)
static Resource	getCurrentSuffixResource(SlingHttpServletRequest request) returns the resource represented by the suffix.
static int	getHeight(Rendition r) Returns the height of rendition if it is the original rendition, and has dimension metadata, or if it follows the naming convention cq5dam.[thumbnail|web].width.height.ext,else 0
static java.lang.String	getResolutionLabel(long width, long height, SlingHttpServletRequest slingRequest) Display resolution with correct i18n number formatting
static java.lang.String	getSizeLabel(double size) Adds units to given size in bytes and create label to be displayed in UI
static java.lang.String	getSizeLabel(double size, SlingHttpServletRequest slingRequest) Adds units to given size in bytes and create label to be displayed in UI and Internationalize the result.
static java.lang.String	getTitle(Resource res) Returns the title of a resource.
static int	getWidth(Rendition r) Returns the width of rendition if it is the original rendition, and has dimension metadata, or if it follows the naming convention cq5dam.[thumbnail|web].width.height.ext,else 0
static boolean	hasPermission(AccessControlManager acm, Resource res, java.lang.String privilege) returns whether the given resource has the permission to perform the privileged action
static boolean	isCheckedOutByDrive(Asset asset) Returns true, if an asset is checked out by drive.
static boolean	isEditSupportedFormat(java.lang.String mimetype) returns whether Interactive Edit(crop/rotate) operations are supported on the given mimetype
static java.lang.String	lookupMimeType(java.lang.String mimeType, Node node, boolean uppercase) Deprecated.

Methods inherited from class java.lang.Object

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

Constructor Detail

UIHelper

public UIHelper()

Method Detail

getTitle

public static java.lang.String getTitle(Resource res)

Returns the title of a resource. returns dc:title metadata property is return if resource represents a DAM asset returns Page title if the resource represents a cq:Page returns title if it is a LabeledResource in other cases, it returns name of the resource or jcr:title property if exists

Parameters:

res - a resource

Returns:

title of the resource

getBestfitRendition

public static Rendition getBestfitRendition(Asset asset,
                                            int width)

Returns best fit rendition, whose width is nearer to given width. First it tries to look for thumbnail name starting with "cq5dam.thumbnail.width". If such a perfect match is not found, then it tries to look for nearest match by looking at rendition width.

Parameters:

asset - dam asset

width - width of thumbnail in pixels

Returns:

Rendition best fit rendition

getAltText

public static java.lang.String getAltText(Resource resource)

Returns alternate text that is to be used in place of the image when displaying the resource's thumbnail

Parameters:

resource - The resource whose alt text need to be found.

Returns:

The alternate text that is to be used in place of the image/thumbnail.

getCacheKiller

public static long getCacheKiller(Node node)

Returns the cache killer number that can be appended the resource request.

Parameters:

node - a node

Returns:

a number which represent last modified timestamp of node/resource

getCurrentSuffixResource

public static Resource getCurrentSuffixResource(SlingHttpServletRequest request)

returns the resource represented by the suffix. if the request path is assets.html/content/dam, it will return suffix represnted by /content/dam in case of invalid paths, it defaults to /content/dam

Parameters:

request - sling request

Returns:

suffix resource

getSizeLabel

public static java.lang.String getSizeLabel(double size)

Adds units to given size in bytes and create label to be displayed in UI

Parameters:

size - size in bytes

Returns:

string label for file/asset size.

getSizeLabel

public static java.lang.String getSizeLabel(double size,
                                            SlingHttpServletRequest slingRequest)

Adds units to given size in bytes and create label to be displayed in UI and Internationalize the result.

Parameters:

size - size in bytes

Returns:

string label for file/asset size.

getResolutionLabel

public static java.lang.String getResolutionLabel(long width,
                                                  long height,
                                                  SlingHttpServletRequest slingRequest)

Display resolution with correct i18n number formatting

Parameters:

width - width

height - height

slingRequest - request

Returns:

string label for resolution in i18n'ed format of: width x height

hasPermission

public static boolean hasPermission(AccessControlManager acm,
                                    Resource res,
                                    java.lang.String privilege)
                             throws RepositoryException

returns whether the given resource has the permission to perform the privileged action

Parameters:

acm - AccessControlManager to determine the permissions

res - resource

privilege - action, wanted to perform on the res

Returns:

true if user has the permission, otherwise false

Throws:

RepositoryException

getAllPermission

public static Privilege[] getAllPermission(AccessControlManager acm,
                                           Resource res)
                                    throws PathNotFoundException,
                                           RepositoryException

returns the privileges the session has for the given resource

Parameters:

acm - AccessControlManager to determine the permissions

res - resource

Returns:

returns the privileges for the resource

Throws:

RepositoryException

PathNotFoundException

isEditSupportedFormat

public static boolean isEditSupportedFormat(java.lang.String mimetype)

returns whether Interactive Edit(crop/rotate) operations are supported on the given mimetype

Parameters:

mimetype -

Returns:

getBestFitRendtionBasedOnSize

public static Rendition getBestFitRendtionBasedOnSize(Asset asset,
                                                      long size)

Returns best fit rendition, whose size is nearer to given size.

Parameters:

asset - dam asset

size - size in KB

Returns:

Rendition best fit rendition

getBestFitRendtionBasedOnSize

public static Rendition getBestFitRendtionBasedOnSize(Asset asset,
                                                      long size,
                                                      boolean preferOriginal)

Returns best fit rendition, whose size is nearer to given size.

Parameters:

asset - dam asset

size - size in KB

preferOriginal - return original if size of best fit rendition is greater

Returns:

Rendition best fit rendition

canRenderOnWeb

public static boolean canRenderOnWeb(java.lang.String mimeType)

Returns true if the given mime type can be rendered in HTML by browser.

Parameters:

mimeType -

Returns:

getWidth

public static int getWidth(Rendition r)

Returns the width of rendition if it is the original rendition, and has dimension metadata, or if it follows the naming convention cq5dam.[thumbnail|web].width.height.ext,else 0

Parameters:

r - Rendition whose width is required

Returns:

width if it follows the naming convention, else 0

getHeight

public static int getHeight(Rendition r)

Returns the height of rendition if it is the original rendition, and has dimension metadata, or if it follows the naming convention cq5dam.[thumbnail|web].width.height.ext,else 0

Parameters:

r - Rendition whose width is required

Returns:

width if it follows the naming convention, else 0

lookupMimeType

@Deprecated
public static java.lang.String lookupMimeType(java.lang.String mimeType,
                                                          Node node,
                                                          boolean uppercase)

Deprecated.

Please use lookupMimeType(String, Resource, boolean)

isCheckedOutByDrive

public static boolean isCheckedOutByDrive(Asset asset)

Returns true, if an asset is checked out by drive. False otherwise.

Parameters:

asset - Asset whose status needs to be determined

Returns:

True if asset is checked out by drive, false otherwise

getCheckedOutby

public static java.lang.String getCheckedOutby(Asset asset)