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-rw-r--r--library/Businessprocess/Storage/LegacyConfigRenderer.php255
1 files changed, 255 insertions, 0 deletions
diff --git a/library/Businessprocess/Storage/LegacyConfigRenderer.php b/library/Businessprocess/Storage/LegacyConfigRenderer.php
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index 0000000..7e2e0b2
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+++ b/library/Businessprocess/Storage/LegacyConfigRenderer.php
@@ -0,0 +1,255 @@
+<?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 '';
+ }
+ }
+}