Monitoring\Backend: reduce to compat facade
This is a facade for Monitoring\Backend right now. To be removed as soon as it got replaced everywhere. refs #7635
This commit is contained in:
Thomas Gelf
parent
50b0ef45ff
commit
11f587aa09
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@ -1,186 +1,11 @@
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<?php
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// {{{ICINGA_LICENSE_HEADER}}}
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// {{{ICINGA_LICENSE_HEADER}}}
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// TODO: obsolete, remove once MonitoringBackend is in use everywhere
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namespace Icinga\Module\Monitoring;
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use Icinga\Exception\ProgrammingError;
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use Icinga\Data\Selectable;
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use Icinga\Data\Queryable;
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use Icinga\Data\ConnectionInterface;
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use Icinga\Module\Monitoring\Backend\MonitoringBackend;
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use Icinga\Application\Config;
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use Icinga\Data\ResourceFactory;
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use Icinga\Exception\ConfigurationError;
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/**
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* Data view and query loader tied to a backend type
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*/
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class Backend implements Selectable, Queryable, ConnectionInterface
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class Backend extends MonitoringBackend
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{
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/**
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* Resource
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*
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* @var mixed
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*/
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protected $resource;
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/**
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* Type
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*
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* @var string
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*/
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protected $type;
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protected $name;
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/**
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* Create a new backend
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*
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* @param mixed $resource
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* @param string $type
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*/
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public function __construct($resource, $type)
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{
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$this->resource = $resource;
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$this->type = $type;
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}
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// Temporary workaround, we have no way to know our name
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protected function setName($name)
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{
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$this->name = $name;
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}
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public function getName()
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{
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return $this->name;
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}
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/**
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* Create a backend
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*
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* @param string $backendName Name of the backend or null for creating the default backend which is the first INI
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* configuration entry not being disabled
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*
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* @return Backend
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* @throws ConfigurationError When no backend has been configured or all backends are disabled or the
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* configuration for the requested backend does either not exist or it's disabled
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*/
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public static function createBackend($backendName = null)
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{
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$config = Config::module('monitoring', 'backends');
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if ($config->count() === 0) {
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throw new ConfigurationError(mt('monitoring', 'No backend has been configured'));
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}
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if ($backendName !== null) {
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$backendConfig = $config->get($backendName);
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if ($backendConfig === null) {
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throw new ConfigurationError('No configuration for backend %s', $backendName);
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}
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if ((bool) $backendConfig->get('disabled', false) === true) {
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throw new ConfigurationError(
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mt('monitoring', 'Configuration for backend %s available but backend is disabled'),
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$backendName
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);
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}
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} else {
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foreach ($config as $name => $backendConfig) {
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if ((bool) $backendConfig->get('disabled', false) === false) {
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$backendName = $name;
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break;
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}
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}
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if ($backendName === null) {
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throw new ConfigurationError(mt('monitoring', 'All backends are disabled'));
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}
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}
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$resource = ResourceFactory::create($backendConfig->resource);
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if ($backendConfig->type === 'ido' && $resource->getDbType() !== 'oracle') {
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// TODO(el): The resource should set the table prefix
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$resource->setTablePrefix('icinga_');
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}
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$backend = new Backend($resource, $backendConfig->type);
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$backend->setName($backendName);
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return $backend;
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}
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public function getResource()
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{
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return $this->resource;
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}
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/**
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* Backend entry point
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*
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* @return self
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*/
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public function select()
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{
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return $this;
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}
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/**
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* Create a data view to fetch data from
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*
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* @param string $viewName
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* @param array $columns
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*
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* @return DataView
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*/
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public function from($viewName, array $columns = null)
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{
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$viewClass = $this->resolveDataViewName($viewName);
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return new $viewClass($this, $columns);
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}
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/**
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* View name to class name resolution
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*
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* @param string $viewName
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*
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* @return string
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* @throws ProgrammingError When the view does not exist
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*/
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protected function resolveDataViewName($viewName)
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{
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$viewClass = '\\Icinga\\Module\\Monitoring\\DataView\\' . ucfirst($viewName);
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if (!class_exists($viewClass)) {
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throw new ProgrammingError(
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'DataView %s does not exist',
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ucfirst($viewName)
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);
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}
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return $viewClass;
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}
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public function getQueryClass($name)
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{
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return $this->resolveQueryName($name);
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}
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/**
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* Query name to class name resolution
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*
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* @param string $queryName
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*
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* @return string
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* @throws ProgrammingError When the query does not exist for this backend
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*/
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protected function resolveQueryName($queryName)
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{
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$queryClass = '\\Icinga\\Module\\Monitoring\\Backend\\'
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. ucfirst($this->type)
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. '\\Query\\'
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. ucfirst($queryName)
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. 'Query';
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if (!class_exists($queryClass)) {
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throw new ProgrammingError(
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'Query "%s" does not exist for backend %s',
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ucfirst($queryName),
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ucfirst($this->type)
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);
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}
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return $queryClass;
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}
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}
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