diff --git a/config/schema/facets.facetsource.schema.yml b/config/schema/facets.facetsource.schema.yml
index 962703e..8cf0e35 100644
--- a/config/schema/facets.facetsource.schema.yml
+++ b/config/schema/facets.facetsource.schema.yml
@@ -14,3 +14,6 @@ facets.facet_source.*:
     filterKey:
       type: string
       label: 'Filter key'
+    url_processor:
+      type: string
+      label: 'Url processor'
diff --git a/facets.plugin_type.yml b/facets.plugin_type.yml
index 1fd9cbf..8db8901 100644
--- a/facets.plugin_type.yml
+++ b/facets.plugin_type.yml
@@ -3,6 +3,11 @@ facets_processor:
   plugin_manager_service_id: plugin.manager.facets.processor
   plugin_definition_decorator_class: \Drupal\plugin\PluginDefinition\ArrayPluginDefinitionDecorator
 
+facets_url_processor:
+  label: Facets URL processor
+  plugin_manager_service_id: plugin.manager.facets.url_processor
+  plugin_definition_decorator_class: \Drupal\plugin\PluginDefinition\ArrayPluginDefinitionDecorator
+
 facets_facet_source:
   label: Facets source
   plugin_manager_service_id: plugin.manager.facets.facet_source
diff --git a/facets.services.yml b/facets.services.yml
index c33a611..01d4ee8 100644
--- a/facets.services.yml
+++ b/facets.services.yml
@@ -11,6 +11,9 @@ services:
   plugin.manager.facets.processor:
     class: Drupal\facets\Processor\ProcessorPluginManager
     arguments: ['@container.namespaces', '@cache.discovery', '@module_handler', '@string_translation']
+  plugin.manager.facets.url_processor:
+    class: Drupal\facets\UrlProcessor\UrlProcessorPluginManager
+    parent: default_plugin_manager
   facets.manager:
     class: Drupal\facets\FacetManager\DefaultFacetManager
     arguments:
diff --git a/src/Annotation/FacetsUrlProcessor.php b/src/Annotation/FacetsUrlProcessor.php
new file mode 100644
index 0000000..8547812
--- /dev/null
+++ b/src/Annotation/FacetsUrlProcessor.php
@@ -0,0 +1,48 @@
+<?php
+/**
+ * @file
+ * Contains \Drupal\facets\Annotation\FacetsUrlProcessor.
+ */
+
+namespace Drupal\facets\Annotation;
+
+use Drupal\Component\Annotation\Plugin;
+
+/**
+ * Defines a Facets URL Processor annotation.
+ *
+ * @see \Drupal\facets\Processor\ProcessorPluginManager
+ * @see plugin_api
+ *
+ * @ingroup plugin_api
+ *
+ * @Annotation
+ */
+class FacetsUrlProcessor extends Plugin {
+
+  /**
+   * The URL processor plugin id.
+   *
+   * @var string
+   */
+  public $id;
+
+  /**
+   * The human-readable name of the URL processor plugin.
+   *
+   * @ingroup plugin_translatable
+   *
+   * @var \Drupal\Core\Annotation\Translation
+   */
+  public $label;
+
+  /**
+   * The URL processor description.
+   *
+   * @ingroup plugin_translatable
+   *
+   * @var \Drupal\Core\Annotation\Translation
+   */
+  public $description;
+
+}
diff --git a/src/Entity/FacetSource.php b/src/Entity/FacetSource.php
index 3d3f7ad..0ed4cc8 100644
--- a/src/Entity/FacetSource.php
+++ b/src/Entity/FacetSource.php
@@ -9,6 +9,7 @@ namespace Drupal\facets\Entity;
 
 use Drupal\Core\Config\Entity\ConfigEntityBase;
 use Drupal\facets\FacetSourceInterface;
+use Drupal\facets\UrlProcessor\UrlProcessorInterface;
 
 /**
  * Defines the facet source configuration entity.
@@ -36,7 +37,8 @@ use Drupal\facets\FacetSourceInterface;
  *   config_export = {
  *     "id",
  *     "name",
- *     "filterKey"
+ *     "filterKey",
+ *     "urlProcessor"
  *   },
  *   links = {
  *     "canonical" = "/admin/config/search/facets/facet-sources/",
@@ -68,6 +70,13 @@ class FacetSource extends ConfigEntityBase implements FacetSourceInterface {
   protected $filterKey;
 
   /**
+   * The url processor name.
+   *
+   * @var string
+   */
+  protected $urlProcessor = 'query_string';
+
+  /**
    * {@inheritdoc}
    */
   public function id() {
@@ -95,4 +104,18 @@ class FacetSource extends ConfigEntityBase implements FacetSourceInterface {
     return $this->filterKey;
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function setUrlProcessor($processor_name) {
+    $this->urlProcessor = $processor_name;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getUrlProcessorName() {
+    return $this->urlProcessor;
+  }
+
 }
diff --git a/src/FacetSourceInterface.php b/src/FacetSourceInterface.php
index 8395760..8c6e909 100644
--- a/src/FacetSourceInterface.php
+++ b/src/FacetSourceInterface.php
@@ -38,4 +38,20 @@ interface FacetSourceInterface extends ConfigEntityInterface {
    */
   public function setFilterKey($filter_key);
 
+  /**
+   * Set the processor name to be used.
+   *
+   * @param string $processor_name
+   *   Plugin name of the url processor.
+   */
+  public function setUrlProcessor($processor_name);
+
+  /**
+   * Returns a string version of the url processor.
+   *
+   * @return string
+   *   The url processor to be used as a string.
+   */
+  public function getUrlProcessorName();
+
 }
diff --git a/src/Form/FacetDisplayForm.php b/src/Form/FacetDisplayForm.php
index d55dfe1..e096de0 100644
--- a/src/Form/FacetDisplayForm.php
+++ b/src/Form/FacetDisplayForm.php
@@ -14,6 +14,7 @@ use Drupal\Core\Entity\EntityTypeManager;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\facets\Processor\ProcessorInterface;
 use Drupal\facets\Processor\ProcessorPluginManager;
+use Drupal\facets\UrlProcessor\UrlProcessorInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Drupal\facets\Widget\WidgetPluginManager;
 use Drupal\facets\Processor\WidgetOrderProcessorInterface;
@@ -219,7 +220,7 @@ class FacetDisplayForm extends EntityForm {
       ),
     );
     foreach ($all_processors as $processor_id => $processor) {
-      if (!($processor instanceof WidgetOrderProcessorInterface)) {
+      if (!($processor instanceof WidgetOrderProcessorInterface) && !($processor instanceof UrlProcessorInterface)) {
         $clean_css_id = Html::cleanCssIdentifier($processor_id);
         $form['facet_settings'][$processor_id]['status'] = array(
           '#type' => 'checkbox',
diff --git a/src/Form/FacetSourceEditForm.php b/src/Form/FacetSourceEditForm.php
index 067a39f..bdc7779 100644
--- a/src/Form/FacetSourceEditForm.php
+++ b/src/Form/FacetSourceEditForm.php
@@ -8,8 +8,11 @@
 namespace Drupal\facets\Form;
 
 use Drupal\Core\Entity\EntityForm;
+use Drupal\Core\Entity\EntityTypeManagerInterface;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\facets\Entity\FacetSource;
+use Drupal\facets\UrlProcessor\UrlProcessorPluginManager;
+use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
  * Provides a form for editing facet sources.
@@ -20,10 +23,32 @@ use Drupal\facets\Entity\FacetSource;
 class FacetSourceEditForm extends EntityForm {
 
   /**
+   * The plugin manager for URL Processors.
+   *
+   * @var \Drupal\facets\UrlProcessor\UrlProcessorPluginManager
+   */
+  protected $urlProcessorPluginManager;
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container) {
+    /** @var \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager */
+    $entity_type_manager = $container->get('entity_type.manager');
+
+    /** @var \Drupal\facets\UrlProcessor\UrlProcessorPluginManager $url_processor_plugin_manager */
+    $url_processor_plugin_manager = $container->get('plugin.manager.facets.url_processor');
+
+    return new static($entity_type_manager, $url_processor_plugin_manager);
+  }
+
+  /**
    * Constructs a FacetSourceEditForm.
    */
-  public function __construct() {
-    $facet_source_storage = \Drupal::entityTypeManager()->getStorage('facets_facet_source');
+  public function __construct(EntityTypeManagerInterface $entity_type_manager, UrlProcessorPluginManager $url_processor_plugin_manager) {
+    $facet_source_storage = $entity_type_manager->getStorage('facets_facet_source');
+
+    $this->urlProcessorPluginManager = $url_processor_plugin_manager;
 
     // Make sure we remove colons from the source id, those are disallowed in
     // the entity id.
@@ -81,6 +106,17 @@ class FacetSourceEditForm extends EntityForm {
       ),
     ];
 
+    $url_processors = array();
+    foreach ($this->urlProcessorPluginManager->getDefinitions() as $definition) {
+      $url_processors[$definition['id']] = $definition['label'];
+    }
+    $form['urlProcessor'] = [
+      '#type' => 'select',
+      '#title' => $this->t('URL Processor'),
+      '#options' => $url_processors,
+      '#default_value' => $facet_source->getUrlProcessorName(),
+    ];
+
     // The parent's form build method will add a save button.
     return parent::buildForm($form, $form_state);
   }
diff --git a/src/Plugin/facets/processor/UrlProcessorHandler.php b/src/Plugin/facets/processor/UrlProcessorHandler.php
new file mode 100644
index 0000000..3ec3819
--- /dev/null
+++ b/src/Plugin/facets/processor/UrlProcessorHandler.php
@@ -0,0 +1,75 @@
+<?php
+
+/**
+ * @file
+ * Contains Drupal\facets\Plugin\facets\processor\UrlProcessorHandler.
+ */
+
+namespace Drupal\facets\Plugin\facets\processor;
+
+use Drupal\facets\Exception\InvalidProcessorException;
+use Drupal\facets\FacetInterface;
+use Drupal\facets\Processor\BuildProcessorInterface;
+use Drupal\facets\Processor\PreQueryProcessorInterface;
+use Drupal\facets\Processor\ProcessorPluginBase;
+
+/**
+ * The URL processor, delegates all of it's work to an actual url processor.
+ *
+ * Because we need to be able to decide where in the facet the urlProcessor
+ * should be triggered there needs to be an actual processor. This farms out all
+ * the work it does to the actual @FacetsUrlProcessor.
+ *
+ * @FacetsProcessor(
+ *   id = "url_processor_handler",
+ *   label = @Translation("URL processor handler"),
+ *   description = @Translation("A processor that holds the other url processors (that can be set per facet source)."),
+ *   stages = {
+ *     "pre_query" = 50,
+ *     "build" = 15,
+ *   },
+ *   locked = true
+ * )
+ */
+class UrlProcessorHandler extends ProcessorPluginBase implements BuildProcessorInterface, PreQueryProcessorInterface{
+
+  /** @var \Drupal\facets\UrlProcessor\UrlProcessorInterface */
+  protected $processor;
+
+  /**
+   * {@inheritdoc}
+   */
+  public function __construct(array $configuration, $plugin_id, array $plugin_definition) {
+    parent::__construct($configuration, $plugin_id, $plugin_definition);
+
+    if (!isset($configuration['facet']) || !$configuration['facet'] instanceof FacetInterface) {
+      throw new InvalidProcessorException("The UrlProcessorHandler doesn't have the required 'facet' in the configuration array.");
+    }
+
+    /** @var \Drupal\facets\FacetInterface $facet */
+    $facet = $configuration['facet'];
+
+    /** @var \Drupal\facets\FacetSourceInterface $fs */
+    $fs = $facet->getFacetSourceConfig();
+
+    $url_processor_name = $fs->getUrlProcessorName();
+
+    $manager = \Drupal::getContainer()->get('plugin.manager.facets.url_processor');
+    $this->processor= $manager->createInstance($url_processor_name, ['facet' => $facet]);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function build(FacetInterface $facet, array $results) {
+    return $this->processor->buildUrls($facet, $results);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function preQuery(FacetInterface $facet) {
+    $this->processor->setActiveItems($facet);
+  }
+
+}
diff --git a/src/Plugin/facets/processor/QueryStringUrlProcessor.php b/src/Plugin/facets/url_processor/QueryString.php
similarity index 85%
rename from src/Plugin/facets/processor/QueryStringUrlProcessor.php
rename to src/Plugin/facets/url_processor/QueryString.php
index 3c53a32..78812b5 100644
--- a/src/Plugin/facets/processor/QueryStringUrlProcessor.php
+++ b/src/Plugin/facets/url_processor/QueryString.php
@@ -2,31 +2,26 @@
 
 /**
  * @file
- * Contains Drupal\facets\Plugin\facets\url_processor\UrlProcessorQueryString.
+ * Contains Drupal\facets\Plugin\facets\url_processor\QueryString.
  */
 
-namespace Drupal\facets\Plugin\facets\processor;
+namespace Drupal\facets\Plugin\facets\url_processor;
 
 use Drupal\Core\Url;
 use Drupal\facets\FacetInterface;
-use Drupal\facets\Processor\UrlProcessorPluginBase;
+use Drupal\facets\UrlProcessor\UrlProcessorPluginBase;
 use Symfony\Component\HttpFoundation\Request;
 
 /**
- * The basic url processor, uses query strings.
+ * Query string URL processor.
  *
- * @FacetsProcessor(
+ * @FacetsUrlProcessor(
  *   id = "query_string",
  *   label = @Translation("Query string url processor"),
- *   description = @Translation("Most simple url processor which uses the query sting."),
- *   stages = {
- *     "pre_query" = 50,
- *     "build" = 15,
- *   },
- *   locked = true
+ *   description = @Translation("Most simple url processor which uses the query sting.")
  * )
  */
-class QueryStringUrlProcessor extends UrlProcessorPluginBase {
+class QueryString extends UrlProcessorPluginBase {
 
   /**
    * A string that separates the filters in the query string.
@@ -59,7 +54,7 @@ class QueryStringUrlProcessor extends UrlProcessorPluginBase {
   /**
    * {@inheritdoc}
    */
-  public function build(FacetInterface $facet, array $results) {
+  public function buildUrls(FacetInterface $facet, array $results) {
     // Create links for all the values.
     // First get the current list of get parameters.
     $get_params = $this->request->query;
@@ -74,7 +69,7 @@ class QueryStringUrlProcessor extends UrlProcessorPluginBase {
 
     /** @var \Drupal\facets\Result\ResultInterface $result */
     foreach ($results as &$result) {
-      $filter_string = $this->url_alias . ':' . $result->getRawValue();
+      $filter_string = $this->url_alias . self::SEPARATOR . $result->getRawValue();
       $result_get_params = clone $get_params;
 
       $filter_params = $result_get_params->get($this->filterKey, [], TRUE);
@@ -108,7 +103,7 @@ class QueryStringUrlProcessor extends UrlProcessorPluginBase {
   /**
    * {@inheritdoc}
    */
-  public function preQuery(FacetInterface $facet) {
+  public function setActiveItems(FacetInterface $facet) {
     // Set the url alias from the the facet object.
     $this->url_alias = $facet->getUrlAlias();
 
diff --git a/src/Processor/UrlProcessorInterface.php b/src/Processor/UrlProcessorInterface.php
deleted file mode 100644
index 31aeb9c..0000000
--- a/src/Processor/UrlProcessorInterface.php
+++ /dev/null
@@ -1,31 +0,0 @@
-<?php
-/**
- * @file
- * Contains Drupal\facets\Processor\UrlProcessorInterface.
- */
-
-namespace Drupal\facets\Processor;
-
-/**
- * Interface UrlProcessorInterface.
- *
- * The url processor takes care of retrieving facet information from the url.
- * It also handles the generation of facet links. This extends the pre query and
- * build processor interfaces, those methods are where the bulk of the work
- * should be done.
- *
- * The facet manager has one url processor.
- *
- * @package Drupal\facets\UrlProcessor
- */
-interface UrlProcessorInterface extends PreQueryProcessorInterface, BuildProcessorInterface {
-
-  /**
-   * Returns the filter key.
-   *
-   * @return string
-   *   A string containing the filter key.
-   */
-  public function getFilterKey();
-
-}
diff --git a/src/Tests/FacetSourceTest.php b/src/Tests/FacetSourceTest.php
index 3beef1d..92d179e 100644
--- a/src/Tests/FacetSourceTest.php
+++ b/src/Tests/FacetSourceTest.php
@@ -29,11 +29,17 @@ class FacetSourceTest extends FacetWebTestBase {
     $this->clickLink($this->t('Configure'));
 
     // Test the edit page.
+    $edit = array(
+      'filterKey' => 'fq',
+      'urlProcessor' => 'query_string',
+    );
     $this->assertField('filterKey');
-    $this->drupalPostForm(NULL, array('filterKey' => 'fq'), $this->t('Save'));
+    $this->assertField('urlProcessor');
+    $this->drupalPostForm(NULL, $edit, $this->t('Save'));
 
     // Test that saving worked.
     $this->assertField('filterKey');
+    $this->assertField('urlProcessor');
     $this->assertRaw('fq');
   }
 
diff --git a/src/Tests/UrlIntegrationTest.php b/src/Tests/UrlIntegrationTest.php
new file mode 100644
index 0000000..565392e
--- /dev/null
+++ b/src/Tests/UrlIntegrationTest.php
@@ -0,0 +1,101 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\facets\Tests\UrlIntegrationTest.
+ */
+
+namespace Drupal\facets\Tests;
+
+use \Drupal\facets\Tests\WebTestBase as FacetWebTestBase;
+
+/**
+ * Tests the overall functionality of the Facets admin UI.
+ *
+ * @group facets
+ */
+class UrlIntegrationTest extends FacetWebTestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public static $modules = [
+    'views',
+    'node',
+    'search_api',
+    'search_api_test_backend',
+    'facets',
+    'search_api_test_views',
+    'block',
+    'facets_search_api_dependency',
+    'facets_query_processor',
+  ];
+
+  /**
+   * {@inheritdoc}
+   */
+  public function setUp() {
+    parent::setUp();
+
+    $this->drupalLogin($this->adminUser);
+
+    $this->insertExampleContent();
+    $this->assertEqual($this->indexItems($this->indexId), 5, '5 items were indexed.');
+  }
+
+  /**
+   * Tests various url integration things.
+   */
+  public function testUrlIntegration() {
+    $id = 'facet';
+    $name = '&^Facet@#1';
+    $facet_add_page = 'admin/config/search/facets/add-facet';
+
+    $this->drupalGet($facet_add_page);
+
+    $form_values = [
+      'id' => $id,
+      'status' => 1,
+      'url_alias' => $id,
+      'name' => $name,
+      'facet_source_id' => 'search_api_views:search_api_test_views_fulltext:page_1',
+      'facet_source_configs[search_api_views:search_api_test_views_fulltext:page_1][field_identifier]' => 'entity:entity_test/type',
+    ];
+    $this->drupalPostForm(NULL, ['facet_source_id' => 'search_api_views:search_api_test_views_fulltext:page_1'], $this->t('Configure facet source'));
+    $this->drupalPostForm(NULL, $form_values, $this->t('Save'));
+
+    // Go to the only enabled facet source's config.
+    $this->drupalGet('admin/config/search/facets');
+    $this->clickLink($this->t('Configure'));
+
+    $edit = [
+      'filterKey' => 'y',
+      'urlProcessor' => 'dummy_query',
+    ];
+    $this->drupalPostForm(NULL, $edit, $this->t('Save'));
+
+    /** @var \Drupal\facets\FacetInterface $facet */
+    $facet = \Drupal::service('entity_type.manager')->getStorage('facets_facet')->load($id);
+    $block_values = [
+      'region' => 'footer',
+      'id' => str_replace('_', '-', $id),
+      'context_mapping' => [
+        'facet' => '@facets.facet_context:' . $facet->uuid(),
+      ],
+    ];
+    $this->drupalPlaceBlock('facet_block', $block_values);
+
+    $this->drupalGet('search-api-test-fulltext');
+    $this->assertResponse(200);
+    $this->assertLink('item');
+    $this->assertLink('article');
+
+    $this->clickLink('item');
+
+    $this->assertResponse(200);
+    $this->assertLink('(-) item');
+    $this->assertNoLink('article');
+    $this->assertUrl('search-api-test-fulltext?y[0]=facet||item');
+  }
+
+}
diff --git a/src/UrlProcessor/UrlProcessorInterface.php b/src/UrlProcessor/UrlProcessorInterface.php
new file mode 100644
index 0000000..3bc51a1
--- /dev/null
+++ b/src/UrlProcessor/UrlProcessorInterface.php
@@ -0,0 +1,56 @@
+<?php
+/**
+ * @file
+ * Contains Drupal\facets\UrlProcessor\UrlProcessorInterface.
+ */
+
+namespace Drupal\facets\UrlProcessor;
+
+use Drupal\facets\FacetInterface;
+
+/**
+ * Interface UrlProcessorInterface.
+ *
+ * The url processor takes care of retrieving facet information from the url.
+ * It also handles the generation of facet links. This extends the pre query and
+ * build processor interfaces, those methods are where the bulk of the work
+ * should be done.
+ *
+ * The facet manager has one url processor.
+ *
+ * @package Drupal\facets\UrlProcessor
+ */
+interface UrlProcessorInterface {
+
+  /**
+   * Adds urls to the results.
+   *
+   * @param \Drupal\facets\FacetInterface $facet
+   *   The facet.
+   * @param \Drupal\facets\Result\ResultInterface[] $results
+   *   An array of results.
+   *
+   * @return \Drupal\facets\Result\ResultInterface[]
+   *   An array of results with added urls.
+   */
+  public function buildUrls(FacetInterface $facet, array $results);
+
+  /**
+   * Sets active items.
+   *
+   * Makes sure that the items that are already set in the current request are
+   * remembered when building the facet's urls.
+   *
+   * @param \Drupal\facets\FacetInterface $facet
+   */
+  public function setActiveItems(FacetInterface $facet);
+
+  /**
+   * Returns the filter key.
+   *
+   * @return string
+   *   A string containing the filter key.
+   */
+  public function getFilterKey();
+
+}
diff --git a/src/Processor/UrlProcessorPluginBase.php b/src/UrlProcessor/UrlProcessorPluginBase.php
similarity index 88%
rename from src/Processor/UrlProcessorPluginBase.php
rename to src/UrlProcessor/UrlProcessorPluginBase.php
index 99d5875..f42d235 100644
--- a/src/Processor/UrlProcessorPluginBase.php
+++ b/src/UrlProcessor/UrlProcessorPluginBase.php
@@ -1,13 +1,14 @@
 <?php
 /**
  * @file
- * Contains Drupal\facets\Processor\UrlProcessorPluginBase.
+ * Contains Drupal\facets\UrlProcessor\UrlProcessorPluginBase.
  */
 
-namespace Drupal\facets\Processor;
+namespace Drupal\facets\UrlProcessor;
 
 use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
 use Drupal\facets\Exception\InvalidProcessorException;
+use Drupal\facets\Processor\ProcessorPluginBase;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\HttpFoundation\Request;
 
@@ -56,7 +57,7 @@ abstract class UrlProcessorPluginBase extends ProcessorPluginBase implements Url
     $this->request = $request;
 
     if (!isset($configuration['facet'])) {
-      throw new InvalidProcessorException();
+      throw new InvalidProcessorException("The url processor doesn't have the required 'facet' in the configuration array.");
     }
 
     /** @var \Drupal\facets\FacetInterface $facet */
diff --git a/src/UrlProcessor/UrlProcessorPluginManager.php b/src/UrlProcessor/UrlProcessorPluginManager.php
new file mode 100644
index 0000000..84008fd
--- /dev/null
+++ b/src/UrlProcessor/UrlProcessorPluginManager.php
@@ -0,0 +1,35 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\facets\Processor\UrlProcessorPluginManager.
+ */
+
+namespace Drupal\facets\UrlProcessor;
+
+use Drupal\Core\Cache\CacheBackendInterface;
+use Drupal\Core\Extension\ModuleHandlerInterface;
+use Drupal\Core\Plugin\DefaultPluginManager;
+use Drupal\Core\StringTranslation\StringTranslationTrait;
+
+/**
+ * Manages URL processor plugins.
+ *
+ * @see \Drupal\facets\Annotation\FacetsProcessor
+ * @see \Drupal\facets\Processor\ProcessorInterface
+ * @see \Drupal\facets\Processor\ProcessorPluginBase
+ * @see plugin_api
+ */
+class UrlProcessorPluginManager extends DefaultPluginManager {
+
+  use StringTranslationTrait;
+
+  /**
+   * {@inheritdoc}
+   */
+  public function __construct(\Traversable $namespaces, CacheBackendInterface $cache_backend, ModuleHandlerInterface $module_handler) {
+    parent::__construct('Plugin/facets/url_processor', $namespaces, $module_handler, 'Drupal\facets\UrlProcessor\UrlProcessorInterface', 'Drupal\facets\Annotation\FacetsUrlProcessor');
+    $this->setCacheBackend($cache_backend, 'facets_url_processors');
+  }
+
+}
diff --git a/tests/facets_query_processor/facets_query_processor.info.yml b/tests/facets_query_processor/facets_query_processor.info.yml
new file mode 100644
index 0000000..8347423
--- /dev/null
+++ b/tests/facets_query_processor/facets_query_processor.info.yml
@@ -0,0 +1,6 @@
+name: 'Facets query processor'
+type: module
+description: 'Facets query processor'
+package: 'Search'
+core: 8.x
+hidden: true
diff --git a/tests/facets_query_processor/src/Plugin/facets/url_processor/DummyQuery.php b/tests/facets_query_processor/src/Plugin/facets/url_processor/DummyQuery.php
new file mode 100644
index 0000000..764e67c
--- /dev/null
+++ b/tests/facets_query_processor/src/Plugin/facets/url_processor/DummyQuery.php
@@ -0,0 +1,143 @@
+<?php
+
+/**
+ * @file
+ * Contains Drupal\facets_query_processor\Plugin\facets\url_processor\DummyQuery.
+ */
+
+namespace Drupal\facets_query_processor\Plugin\facets\url_processor;
+
+use Drupal\Core\Url;
+use Drupal\facets\FacetInterface;
+use Drupal\facets\UrlProcessor\UrlProcessorPluginBase;
+use Symfony\Component\HttpFoundation\Request;
+
+/**
+ * Query string URL processor.
+ *
+ * @FacetsUrlProcessor(
+ *   id = "dummy_query",
+ *   label = @Translation("Dummy query"),
+ *   description = @Translation("Dummy for testing.")
+ * )
+ */
+class DummyQuery extends UrlProcessorPluginBase {
+
+  /**
+   * A string that separates the filters in the query string.
+   */
+  const SEPARATOR = '||';
+
+  /**
+   * A string of how to represent the facet in the url.
+   *
+   * @var string
+   */
+  protected $url_alias;
+
+  /**
+   * An array of active filters.
+   *
+   * @var string[]
+   *   An array containing the active filters
+   */
+  protected $activeFilters = [];
+
+  /**
+   * {@inheritdoc}
+   */
+  public function __construct(array $configuration, $plugin_id, $plugin_definition, Request $request) {
+    parent::__construct($configuration, $plugin_id, $plugin_definition, $request);
+    $this->initializeActiveFilters();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildUrls(FacetInterface $facet, array $results) {
+    // Create links for all the values.
+    // First get the current list of get parameters.
+    $get_params = $this->request->query;
+
+    // Set the url alias from the the facet object.
+    $this->url_alias = $facet->getUrlAlias();
+
+    // No results are found for this facet, so don't try to create urls.
+    if (empty($results)) {
+      return [];
+    }
+
+    /** @var \Drupal\facets\Result\ResultInterface $result */
+    foreach ($results as &$result) {
+      $filter_string = $this->url_alias . self::SEPARATOR . $result->getRawValue();
+      $result_get_params = clone $get_params;
+
+      $filter_params = $result_get_params->get($this->filterKey, [], TRUE);
+      // If the value is active, remove the filter string from the parameters.
+      if ($result->isActive()) {
+        foreach ($filter_params as $key => $filter_param) {
+          if ($filter_param == $filter_string) {
+            unset($filter_params[$key]);
+          }
+        }
+      }
+      // If the value is not active, add the filter string.
+      else {
+        $filter_params[] = $filter_string;
+      }
+
+      $result_get_params->set($this->filterKey, $filter_params);
+      $request = $this->request;
+      if ($facet->getFacetSource()->getPath()) {
+        $request = Request::create('/' . $facet->getFacetSource()->getPath());
+      }
+      $url = Url::createFromRequest($request);
+      $url->setOption('query', $result_get_params->all());
+
+      $result->setUrl($url);
+    }
+
+    return $results;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function setActiveItems(FacetInterface $facet) {
+    // Set the url alias from the the facet object.
+    $this->url_alias = $facet->getUrlAlias();
+
+    // Get the filter key of the facet.
+    if (isset($this->activeFilters[$this->url_alias])) {
+      foreach ($this->activeFilters[$this->url_alias] as $value) {
+        $facet->setActiveItem(trim($value, '"'));
+      }
+    }
+  }
+
+  /**
+   * Initialize the active filters.
+   *
+   * Get all the filters that are active. This method only get's all the
+   * filters but doesn't assign them to facets. In the processFacet method the
+   * active values for a specific facet are added to the facet.
+   */
+  protected function initializeActiveFilters() {
+    $url_parameters = $this->request->query;
+
+    // Get the active facet parameters.
+    $active_params = $url_parameters->get($this->filterKey, array(), TRUE);
+
+    // Explode the active params on the separator.
+    foreach ($active_params as $param) {
+      list($key, $value) = explode(self::SEPARATOR, $param);
+      if (!isset($this->activeFilters[$key])) {
+        $this->activeFilters[$key] = [$value];
+      }
+      else {
+        $this->activeFilters[$key][] = $value;
+      }
+    }
+  }
+
+}
diff --git a/tests/src/Unit/Plugin/processor/UrlProcessorHandlerTest.php b/tests/src/Unit/Plugin/processor/UrlProcessorHandlerTest.php
new file mode 100644
index 0000000..c411be8
--- /dev/null
+++ b/tests/src/Unit/Plugin/processor/UrlProcessorHandlerTest.php
@@ -0,0 +1,80 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\Tests\facets\Plugin\url_processor\QueryStringTest.
+ */
+
+namespace Drupal\Tests\facets\Unit\Plugin\processor;
+
+use Drupal\Core\DependencyInjection\ContainerBuilder;
+use Drupal\facets\Entity\Facet;
+use Drupal\facets\Plugin\facets\processor\UrlProcessorHandler;
+use Drupal\Tests\UnitTestCase;
+
+/**
+ * Unit test for processor.
+ *
+ * @group facets
+ */
+class UrlProcessorHandlerTest extends UnitTestCase {
+
+  /**
+   * Tests that the processor correctly throws an exception.
+   */
+  public function testEmptyProcessorConfiguration() {
+    $this->setExpectedException('\Drupal\facets\Exception\InvalidProcessorException', "The UrlProcessorHandler doesn't have the required 'facet' in the configuration array.");
+    new UrlProcessorHandler([], 'test', []);
+  }
+
+  /**
+   * Tests that the processor correctly throws an exception.
+   */
+  public function testInvalidProcessorConfiguration() {
+    $this->setExpectedException('\Drupal\facets\Exception\InvalidProcessorException', "The UrlProcessorHandler doesn't have the required 'facet' in the configuration array.");
+    new UrlProcessorHandler(['facet' => new \stdClass()], 'test', []);
+  }
+
+  /**
+   * Test that the build method is correctly called.
+   */
+  public function testBuild() {
+    $facet = new Facet(['id' => '_test'], 'facets_facet');
+    $this->createContainer();
+
+    $processor = new UrlProcessorHandler(['facet' => $facet], 'url_processor_handler', []);
+    // The actual results of this should be tested in the actual processor.
+    $processor->build($facet, []);
+  }
+
+  /**
+   * Helper function to create a correct container.
+   */
+  protected function createContainer() {
+    $url_processor = $this->getMockBuilder('\Drupal\facets\UrlProcessor\UrlProcessorInterface')
+      ->disableOriginalConstructor()
+      ->getMock();
+
+    $manager = $this->getMockBuilder('\Drupal\facets\FacetSource\FacetSourcePluginManager')
+      ->disableOriginalConstructor()
+      ->getMock();
+    $manager->expects($this->exactly(1))
+      ->method('createInstance')
+      ->willReturn($url_processor);
+
+    $storage = $this->getMock('\Drupal\Core\Entity\EntityStorageInterface');
+    $em = $this->getMockBuilder('\Drupal\Core\Entity\EntityTypeManagerInterface')
+      ->disableOriginalConstructor()
+      ->getMock();
+    $em->expects($this->exactly(2))
+      ->method('getStorage')
+      ->willReturn($storage);
+
+    $container = new ContainerBuilder();
+    $container->set('entity.manager', $em);
+    $container->set('entity_type.manager', $em);
+    $container->set('plugin.manager.facets.url_processor', $manager);
+    \Drupal::setContainer($container);
+  }
+
+}
diff --git a/tests/src/Unit/Plugin/processor/QueryStringUrlProcessorTest.php b/tests/src/Unit/Plugin/url_processor/QueryStringTest.php
similarity index 80%
rename from tests/src/Unit/Plugin/processor/QueryStringUrlProcessorTest.php
rename to tests/src/Unit/Plugin/url_processor/QueryStringTest.php
index 1b4c58f..df418fb 100644
--- a/tests/src/Unit/Plugin/processor/QueryStringUrlProcessorTest.php
+++ b/tests/src/Unit/Plugin/url_processor/QueryStringTest.php
@@ -2,14 +2,14 @@
 
 /**
  * @file
- * Contains \Drupal\Tests\facets\Plugin\Processor\QueryStringUrlProcessorTest.
+ * Contains \Drupal\Tests\facets\Plugin\url_processor\QueryStringTest.
  */
 
-namespace Drupal\Tests\facets\Unit\Plugin\Processor;
+namespace Drupal\Tests\facets\Unit\Plugin\url_processor;
 
 use Drupal\facets\Entity\Facet;
 use Drupal\facets\Entity\FacetSource;
-use Drupal\facets\Plugin\facets\processor\QueryStringUrlProcessor;
+use Drupal\facets\Plugin\facets\url_processor\QueryString;
 use Drupal\facets\Result\Result;
 use Drupal\Tests\UnitTestCase;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
@@ -21,12 +21,12 @@ use Symfony\Component\HttpFoundation\Request;
  *
  * @group facets
  */
-class QueryStringUrlProcessorTest extends UnitTestCase {
+class QueryStringTest extends UnitTestCase {
 
   /**
    * The processor to be tested.
    *
-   * @var \Drupal\facets\Plugin\facets\processor\QueryStringUrlProcessor
+   * @var \Drupal\facets\Plugin\facets\url_processor\QueryString
    */
   protected $processor;
 
@@ -55,6 +55,14 @@ class QueryStringUrlProcessorTest extends UnitTestCase {
   }
 
   /**
+   * Tests that the processor correctly throws an exception.
+   */
+  public function testEmptyProcessorConfiguration() {
+    $this->setExpectedException('\Drupal\facets\Exception\InvalidProcessorException', "The url processor doesn't have the required 'facet' in the configuration array.");
+    new QueryString([], 'test', [], new Request());
+  }
+
+  /**
    * Basic test with one active item.
    */
   public function testSetSingleActiveItem() {
@@ -66,8 +74,8 @@ class QueryStringUrlProcessorTest extends UnitTestCase {
     $request = new Request();
     $request->query->set('f', ['test:badger']);
 
-    $this->processor = new QueryStringUrlProcessor(['facet' => $facet], 'query_string', [], $request);
-    $this->processor->preQuery($facet);
+    $this->processor = new QueryString(['facet' => $facet], 'query_string', [], $request);
+    $this->processor->setActiveItems($facet);
 
     $this->assertEquals(['badger'], $facet->getActiveItems());
   }
@@ -84,8 +92,8 @@ class QueryStringUrlProcessorTest extends UnitTestCase {
     $request = new Request();
     $request->query->set('f', ['test:badger', 'test:mushroom', 'donkey:kong']);
 
-    $this->processor = new QueryStringUrlProcessor(['facet' => $facet], 'query_string', [], $request);
-    $this->processor->preQuery($facet);
+    $this->processor = new QueryString(['facet' => $facet], 'query_string', [], $request);
+    $this->processor->setActiveItems($facet);
 
     $this->assertEquals(['badger', 'mushroom'], $facet->getActiveItems());
   }
@@ -101,8 +109,8 @@ class QueryStringUrlProcessorTest extends UnitTestCase {
     $request = new Request();
     $request->query->set('f', []);
 
-    $this->processor = new QueryStringUrlProcessor(['facet' => $facet], 'query_string', [], $request);
-    $results = $this->processor->build($facet, []);
+    $this->processor = new QueryString(['facet' => $facet], 'query_string', [], $request);
+    $results = $this->processor->buildUrls($facet, []);
     $this->assertEmpty($results);
   }
 
@@ -118,8 +126,8 @@ class QueryStringUrlProcessorTest extends UnitTestCase {
     $request = new Request();
     $request->query->set('f', []);
 
-    $this->processor = new QueryStringUrlProcessor(['facet' => $facet], 'query_string', [], $request);
-    $results = $this->processor->build($facet, $this->originalResults);
+    $this->processor = new QueryString(['facet' => $facet], 'query_string', [], $request);
+    $results = $this->processor->buildUrls($facet, $this->originalResults);
 
     /** @var \Drupal\facets\Result\ResultInterface $r */
     foreach ($results as $r) {
@@ -143,8 +151,8 @@ class QueryStringUrlProcessorTest extends UnitTestCase {
     $request = new Request();
     $request->query->set('f', ['king:kong']);
 
-    $this->processor = new QueryStringUrlProcessor(['facet' => $facet], 'query_string', [], $request);
-    $results = $this->processor->build($facet, $original_results);
+    $this->processor = new QueryString(['facet' => $facet], 'query_string', [], $request);
+    $results = $this->processor->buildUrls($facet, $original_results);
 
     /** @var \Drupal\facets\Result\ResultInterface $r */
     foreach ($results as $k => $r) {
@@ -188,8 +196,8 @@ class QueryStringUrlProcessorTest extends UnitTestCase {
     $request = new Request();
     $request->query->set('ab', []);
 
-    $this->processor = new QueryStringUrlProcessor(['facet' => $facet], 'query_string', [], $request);
-    $results = $this->processor->build($facet, $this->originalResults);
+    $this->processor = new QueryString(['facet' => $facet], 'query_string', [], $request);
+    $results = $this->processor->buildUrls($facet, $this->originalResults);
 
     /** @var \Drupal\facets\Result\ResultInterface $r */
     foreach ($results as $r) {