OMV\Json\File Class Reference

Public Member Functions
	__construct ($filename)
	__destruct ()
	exists ()
	open ($accessMode="w+", $lockMode=LOCK_EX)
	isOpen ()
	isEmpty ()
	isValid ()
	close ()
	write ($data)
	getContents ()
	read ($decode=TRUE, $assoc=TRUE)
	truncate ($size)
	unlink ()

Protected Member Functions
	validate ($data)

Detailed Description

Read and write JSON encoded content to a file. The file is locked when it is opened and the lock is removed when it is closed.

Constructor & Destructor Documentation

__construct()

OMV\Json\File::__construct

(

$filename

)

Constructor

Parameters

filename

The name of the file.

__destruct()

OMV\Json\File::__destruct

(

)

Destructor

Member Function Documentation

close()

OMV\Json\File::close

(

)

Close the file.

Returns

None.

Exceptions

exists()

OMV\Json\File::exists

(

)

Checks whether the file exists.

Returns

Returns TRUE if the file exists, FALSE otherwise.

getContents()

OMV\Json\File::getContents

(

)

Reads entire file into a string.

Returns

The method returns the read data.

Exceptions

isEmpty()

OMV\Json\File::isEmpty

(

)

Is the file empty?

Returns

TRUE if the file is empty, otherwise FALSE.

Exceptions

isOpen()

OMV\Json\File::isOpen

(

)

Is the file opened?

Returns

TRUE if the file is opened, otherwise FALSE.

isValid()

OMV\Json\File::isValid

(

)

Check if the JSON data is valid.

Returns

TRUE if the JSON data is valid, otherwise FALSE.

open()

OMV\Json\File::open	(		$accessMode = "w+",
			$lockMode = LOCK_EX
	)

Open the file.

Parameters

accessMode	The parameter specifies the type of access you require to the stream. Defaults to 'w+'.
lockMode	The lock mode. Defaults to LOCK_EX.

Returns

The file handle.

Exceptions

read()

OMV\Json\File::read	(		$decode = TRUE,
			$assoc = TRUE
	)

Read the JSON encoded data from the file.

Parameters

decode

Set to TRUE to decode the JSON content. Defaults to TRUE.

Returns

The content read from the file. If decode was set to TRUE the decoded content is returned.

Exceptions

truncate()

OMV\Json\File::truncate

(

$size

)

Truncates the file to a given length.

Parameters

size	The size to truncate to.

Returns

None.

Exceptions

unlink()

OMV\Json\File::unlink

(

)

Unlink the given file.

Returns

Returns TRUE on success or FALSE on failure.

validate()

OMV\Json\File::validate (   $data )

protected

Validate the JSON data.

Parameters

data	The JSON data to validate.

Returns

TRUE if the JSON data is valid, otherwise FALSE.

write()

OMV\Json\File::write

(

$data

)

Write the given content as JSON encoded string to the file. The file will be truncated to zero length before the content is written.

Parameters

data	The data to write.

Returns

Returns the JSON representation of the data which was written to the file.

Exceptions

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The documentation for this class was generated from the following file:

• file.inc