ImagePreviewTask extends AbstractTask

A task for generating an image preview.

Table of Contents

Properties

$configuration  : array<string|int, mixed>
$executed  : bool
$sourceFile  : File
$successful  : bool
$targetFile  : ProcessedFile
$targetFileExtension  : string|null

Methods

__construct()  : mixed
fileNeedsProcessing()  : bool
We only have to trigger the file processing if the file either is new, does not exist or the original file has changed since the last processing run (the last case has to trigger a reprocessing even if the original file was used until now).
getConfiguration()  : array<string|int, mixed>
Returns the configuration for this task.
getConfigurationChecksum()  : string
Returns the checksum for this task's configuration, also taking the file and task type into account.
getName()  : string
Returns the name of this task
getSourceFile()  : File
Returns the original file this task is based on.
getTargetFile()  : ProcessedFile
Returns the processed file this task is executed on.
getTargetFileExtension()  : string
Determines the file extension the processed file should have in the filesystem.
getTargetFilename()  : string
Returns the name the processed file should have in the filesystem.
getType()  : string
Returns the type of this task
isExecuted()  : bool
Returns TRUE if this task has been executed, no matter if the execution was successful.
isSuccessful()  : bool
Returns TRUE if this task has been successfully executed. Only call this method if the task has been processed at all.
sanitizeConfiguration()  : void
Enforce default configuration for preview processing here, to be sure we find already processed files below, which we wouldn't if we would change the configuration later, as configuration is part of the lookup.
setExecuted()  : void
Set this task executed. This is used by the Processors in order to transfer the state of this task to the file processing service.
determineTargetFileExtension()  : string
Gets the file extension the processed file should have in the filesystem by either using the configuration setting, or the extension of the original file.
getChecksumData()  : array<string|int, mixed>
Sets parameters needed in the checksum. Can be overridden to add additional parameters to the checksum.

Properties

$configuration

protected array<string|int, mixed> $configuration

$targetFileExtension

protected string|null $targetFileExtension

Methods

__construct()

public __construct(ProcessedFile $targetFile, array<string|int, mixed> $configuration) : mixed
Parameters
$targetFile : ProcessedFile
$configuration : array<string|int, mixed>

fileNeedsProcessing()

We only have to trigger the file processing if the file either is new, does not exist or the original file has changed since the last processing run (the last case has to trigger a reprocessing even if the original file was used until now).

public fileNeedsProcessing() : bool
Return values
bool

getConfiguration()

Returns the configuration for this task.

public getConfiguration() : array<string|int, mixed>
Return values
array<string|int, mixed>

getConfigurationChecksum()

Returns the checksum for this task's configuration, also taking the file and task type into account.

public getConfigurationChecksum() : string
Return values
string

getName()

Returns the name of this task

public getName() : string
Return values
string

getSourceFile()

Returns the original file this task is based on.

public getSourceFile() : File
Return values
File

getTargetFileExtension()

Determines the file extension the processed file should have in the filesystem.

public getTargetFileExtension() : string
Return values
string

getTargetFilename()

Returns the name the processed file should have in the filesystem.

public getTargetFilename() : string
Return values
string

getType()

Returns the type of this task

public getType() : string
Return values
string

isExecuted()

Returns TRUE if this task has been executed, no matter if the execution was successful.

public isExecuted() : bool
Return values
bool

isSuccessful()

Returns TRUE if this task has been successfully executed. Only call this method if the task has been processed at all.

public isSuccessful() : bool
Tags
throws
LogicException

If the task has not been executed already

Return values
bool

sanitizeConfiguration()

Enforce default configuration for preview processing here, to be sure we find already processed files below, which we wouldn't if we would change the configuration later, as configuration is part of the lookup.

public sanitizeConfiguration() : void

setExecuted()

Set this task executed. This is used by the Processors in order to transfer the state of this task to the file processing service.

public setExecuted(bool $successful) : void
Parameters
$successful : bool

Set this to FALSE if executing the task failed

determineTargetFileExtension()

Gets the file extension the processed file should have in the filesystem by either using the configuration setting, or the extension of the original file.

protected determineTargetFileExtension() : string
Return values
string

getChecksumData()

Sets parameters needed in the checksum. Can be overridden to add additional parameters to the checksum.

protected getChecksumData() : array<string|int, mixed>

This should include all parameters that could possibly vary between different task instances, e.g. the TYPO3 image configuration in TYPO3_CONF_VARS[GFX] for graphic processing tasks.

Return values
array<string|int, mixed> 

        

        
    




    

    

                            

            

                            
    

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