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<?php
namespace Icinga\Module\Businessprocess\Storage;
use Icinga\Module\Businessprocess\BpNode;
use Icinga\Module\Businessprocess\BpConfig;
use Icinga\Module\Businessprocess\ImportedNode;
class LegacyConfigRenderer
{
/** @var array */
protected $renderedNodes;
/**
* LecagyConfigRenderer constructor
*
* @param BpConfig $config
*/
public function __construct(BpConfig $config)
{
$this->config = $config;
}
/**
* @return string
*/
public function render()
{
return $this->renderHeader() . $this->renderNodes();
}
/**
* @param BpConfig $config
* @return mixed
*/
public static function renderConfig(BpConfig $config)
{
$renderer = new static($config);
return $renderer->render();
}
/**
* @return string
*/
public function renderHeader()
{
$str = "### Business Process Config File ###\n#\n";
$meta = $this->config->getMetadata();
foreach ($meta->getProperties() as $key => $value) {
if ($value === null) {
continue;
}
$str .= sprintf("# %-15s : %s\n", $key, $value);
}
$str .= "#\n###################################\n\n";
return $str;
}
/**
* @return string
*/
public function renderNodes()
{
$this->renderedNodes = array();
$config = $this->config;
$str = '';
foreach ($config->getRootNodes() as $node) {
$str .= $this->requireRenderedBpNode($node);
}
foreach ($config->getUnboundNodes() as $name => $node) {
$str .= $this->requireRenderedBpNode($node);
}
return $str . "\n";
}
/**
* Rendered node definition, empty string if already rendered
*
* @param BpNode $node
*
* @return string
*/
protected function requireRenderedBpNode(BpNode $node)
{
$name = $node->getName();
if (array_key_exists($name, $this->renderedNodes)) {
return '';
} else {
$this->renderedNodes[$name] = true;
return $this->renderBpNode($node);
}
}
/**
* @param BpNode $node
* @return string
*/
protected function renderBpNode(BpNode $node)
{
$name = $node->getName();
// Doing this before rendering children allows us to store loops
$cfg = '';
foreach ($node->getChildBpNodes() as $name => $child) {
if ($child instanceof ImportedNode) {
continue;
}
$cfg .= $this->requireRenderedBpNode($child) . "\n";
}
$cfg .= static::renderSingleBpNode($node);
return $cfg;
}
/**
* @param BpNode $node
* @return string
*/
public static function renderEqualSign(BpNode $node)
{
$op = $node->getOperator();
if (is_numeric($op)) {
return '= ' . $op . ' of:';
} else {
return '=';
}
}
/**
* @param BpNode $node
* @return string
*/
public static function renderOperator(BpNode $node)
{
$op = $node->getOperator();
if (is_numeric($op)) {
return '+';
} else {
return $op;
}
}
/**
* @param BpNode $node
* @return string
*/
public static function renderSingleBpNode(BpNode $node)
{
return static::renderExpression($node)
. static::renderStateOverrides($node)
. static::renderDisplay($node)
. static::renderInfoUrl($node);
}
/**
* @param BpNode $node
* @return string
*/
public static function renderExpression(BpNode $node)
{
return sprintf(
"%s %s %s\n",
$node->getName(),
static::renderEqualSign($node),
static::renderChildNames($node)
);
}
/**
* @param BpNode $node
* @return string
*/
public static function renderChildNames(BpNode $node)
{
$op = static::renderOperator($node);
$children = $node->getChildNames();
$str = implode(' ' . $op . ' ', array_map(function ($val) {
return preg_replace('~([\|\+&\!\%])~', '\\\\$1', $val);
}, $children));
if ((count($children) < 2) && $op !== '&') {
return $op . ' ' . $str;
} else {
return $str;
}
}
/**
* @param BpNode $node
* @return string
*/
public static function renderDisplay(BpNode $node)
{
if ($node->hasAlias() || $node->getDisplay() > 0) {
$prio = $node->getDisplay();
return sprintf(
"display %s;%s;%s\n",
$prio,
$node->getName(),
$node->getAlias()
);
} else {
return '';
}
}
public static function renderStateOverrides(BpNode $node)
{
$stateOverrides = '';
foreach ($node->getStateOverrides() as $childName => $overrideRules) {
$overrides = [];
foreach ($overrideRules as $from => $to) {
$overrides[] = sprintf('%d-%d', $from, $to);
}
if (! empty($overrides)) {
$stateOverrides .= '!' . $childName . '|' . join(',', $overrides);
}
}
if (! $stateOverrides) {
return '';
}
return 'state_overrides ' . $node->getName() . $stateOverrides . "\n";
}
/**
* @param BpNode $node
* @return string
*/
public static function renderInfoUrl(BpNode $node)
{
if ($node->hasInfoUrl()) {
return sprintf(
"info_url %s;%s\n",
$node->getName(),
$node->getInfoUrl()
);
} else {
return '';
}
}
}
|
