<?php
|
|
namespace PhpOffice\PhpSpreadsheet\Calculation\Engine;
|
|
class Logger
|
{
|
/**
|
* Flag to determine whether a debug log should be generated by the calculation engine
|
* If true, then a debug log will be generated
|
* If false, then a debug log will not be generated.
|
*/
|
private bool $writeDebugLog = false;
|
|
/**
|
* Flag to determine whether a debug log should be echoed by the calculation engine
|
* If true, then a debug log will be echoed
|
* If false, then a debug log will not be echoed
|
* A debug log can only be echoed if it is generated.
|
*/
|
private bool $echoDebugLog = false;
|
|
/**
|
* The debug log generated by the calculation engine.
|
*
|
* @var string[]
|
*/
|
private array $debugLog = [];
|
|
/**
|
* The calculation engine cell reference stack.
|
*/
|
private CyclicReferenceStack $cellStack;
|
|
/**
|
* Instantiate a Calculation engine logger.
|
*/
|
public function __construct(CyclicReferenceStack $stack)
|
{
|
$this->cellStack = $stack;
|
}
|
|
/**
|
* Enable/Disable Calculation engine logging.
|
*/
|
public function setWriteDebugLog(bool $writeDebugLog): void
|
{
|
$this->writeDebugLog = $writeDebugLog;
|
}
|
|
/**
|
* Return whether calculation engine logging is enabled or disabled.
|
*/
|
public function getWriteDebugLog(): bool
|
{
|
return $this->writeDebugLog;
|
}
|
|
/**
|
* Enable/Disable echoing of debug log information.
|
*/
|
public function setEchoDebugLog(bool $echoDebugLog): void
|
{
|
$this->echoDebugLog = $echoDebugLog;
|
}
|
|
/**
|
* Return whether echoing of debug log information is enabled or disabled.
|
*/
|
public function getEchoDebugLog(): bool
|
{
|
return $this->echoDebugLog;
|
}
|
|
/**
|
* Write an entry to the calculation engine debug log.
|
*/
|
public function writeDebugLog(string $message, mixed ...$args): void
|
{
|
// Only write the debug log if logging is enabled
|
if ($this->writeDebugLog) {
|
$message = sprintf($message, ...$args);
|
$cellReference = implode(' -> ', $this->cellStack->showStack());
|
if ($this->echoDebugLog) {
|
echo $cellReference,
|
($this->cellStack->count() > 0 ? ' => ' : ''),
|
$message,
|
PHP_EOL;
|
}
|
$this->debugLog[] = $cellReference
|
. ($this->cellStack->count() > 0 ? ' => ' : '')
|
. $message;
|
}
|
}
|
|
/**
|
* Write a series of entries to the calculation engine debug log.
|
*
|
* @param string[] $args
|
*/
|
public function mergeDebugLog(array $args): void
|
{
|
if ($this->writeDebugLog) {
|
foreach ($args as $entry) {
|
$this->writeDebugLog($entry);
|
}
|
}
|
}
|
|
/**
|
* Clear the calculation engine debug log.
|
*/
|
public function clearLog(): void
|
{
|
$this->debugLog = [];
|
}
|
|
/**
|
* Return the calculation engine debug log.
|
*
|
* @return string[]
|
*/
|
public function getLog(): array
|
{
|
return $this->debugLog;
|
}
|
}
|