133 lines
3.9 KiB
PHP
133 lines
3.9 KiB
PHP
<?php
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/* Icinga Web 2 | (c) 2013-2015 Icinga Development Team | GPLv2+ */
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namespace Icinga\Data;
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use Icinga\Application\Config;
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use Icinga\Util\ConfigAwareFactory;
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use Icinga\Exception\ConfigurationError;
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use Icinga\Data\Db\DbConnection;
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use Icinga\Protocol\Livestatus\Connection as LivestatusConnection;
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use Icinga\Protocol\Ldap\LdapConnection;
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use Icinga\Protocol\File\FileReader;
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/**
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* Create resources from names or resource configuration
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*/
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class ResourceFactory implements ConfigAwareFactory
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{
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/**
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* Resource configuration
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*
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* @var Config
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*/
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private static $resources;
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/**
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* Set resource configurations
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*
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* @param Config $config
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*/
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public static function setConfig($config)
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{
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self::$resources = $config;
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}
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/**
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* Get the configuration for a specific resource
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*
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* @param $resourceName String The resource's name
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*
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* @return ConfigObject The configuration of the resource
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*
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* @throws ConfigurationError
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*/
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public static function getResourceConfig($resourceName)
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{
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self::assertResourcesExist();
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$resourceConfig = self::$resources->getSection($resourceName);
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if ($resourceConfig->isEmpty()) {
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throw new ConfigurationError(
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'Cannot load resource config "%s". Resource does not exist',
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$resourceName
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);
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}
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return $resourceConfig;
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}
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/**
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* Return the configuration of all existing resources, or get all resources of a given type.
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*
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* @return Config The configuration containing all resources
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*/
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public static function getResourceConfigs()
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{
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self::assertResourcesExist();
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return self::$resources;
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}
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/**
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* Check if the existing resources are set. If not, throw an error.
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*
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* @throws ConfigurationError
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*/
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private static function assertResourcesExist()
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{
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if (self::$resources === null) {
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throw new ConfigurationError(
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'Resources not set up. Please contact your Icinga Web administrator'
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);
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}
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}
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/**
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* Create a single resource from the given configuration.
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*
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* NOTE: The factory does not test if the given configuration is valid and the resource is accessible, this
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* depends entirely on the implementation of the returned resource.
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*
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* @param ConfigObject $config The configuration for the created resource.
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*
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* @return DbConnection|LdapConnection|LivestatusConnection An object that can be used to access
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* the given resource. The returned class depends on the configuration property 'type'.
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* @throws ConfigurationError When an unsupported type is given
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*/
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public static function createResource(ConfigObject $config)
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{
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switch (strtolower($config->type)) {
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case 'db':
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$resource = new DbConnection($config);
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break;
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case 'ldap':
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$resource = new LdapConnection($config);
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break;
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case 'livestatus':
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$resource = new LivestatusConnection($config->socket);
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break;
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case 'file':
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$resource = new FileReader($config);
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break;
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case 'ini':
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$resource = Config::fromIni($config->ini);
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break;
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default:
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throw new ConfigurationError(
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'Unsupported resource type "%s"',
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$config->type
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);
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}
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return $resource;
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}
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/**
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* Create a resource from name
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*
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* @param string $resourceName
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* @return DbConnection|LdapConnection|LivestatusConnection
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*/
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public static function create($resourceName)
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{
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return self::createResource(self::getResourceConfig($resourceName));
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}
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}
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