Feature facility factory (#247)

* Add FacilityFactory

* Update JavaDoc

* Update CHANGELOG

Author: KochTobi

CHANGELOG.rst

@@ -12,7 +12,7 @@ This project adheres to `Semantic Versioning <https://semver.org/>`_.
 * A new enumeration for facilities ``life.qbic.datamodel.dtos.business.facilities.Facility`` (`#244 <https://github.com/qbicsoftware/data-model-lib/pull/244>`_)
 * New properties ``internalUnitPrice``, ``externalUnitPrice`` and ``serviceProvider`` for the ``life.qbic.datamodel.dtos.business.services.Product`` and its derivatives (`#245 <https://github.com/qbicsoftware/data-model-lib/pull/245>`_)
 * New properties ``totalPrice`` and ``totalDiscountPrice`` for the ``life.qbic.datamodel.dtos.business.ProductItem`` and ``totalDiscountPrice`` for the ``life.qbic.datamodel.dtos.business.Offer``
-
+* A ``life.qbic.datamodel.dtos.business.facilities.FacilityFactory`` to get the facility for a given string representation (`#247 <https://github.com/qbicsoftware/data-model-lib/pull/247>`_)
 **Fixed**
 
 **Dependencies**

src/main/groovy/life/qbic/datamodel/dtos/business/facilities/FacilityFactory.groovy

@@ -0,0 +1,31 @@
+package life.qbic.datamodel.dtos.business.facilities
+
+import life.qbic.datamodel.dtos.EnumFactory
+
+/**
+ * This class provides functionality for enum key retrieval
+ *
+ * This class retrieves the corresponding Facility for a given String
+ *
+ * @see Facility
+ * @since: 2.11.0
+ */
+class FacilityFactory extends EnumFactory<Facility> {
+    /**
+     * This method returns the enum with the provided String value.
+     *
+     * @throws IllegalArgumentException in case the String could not be mapped
+     * @param value the String corresponding to a key of the enum
+     * @return the enum key for the provided string value
+     * @since 2.11.0
+     */
+    @Override
+    Facility getForString(String value) {
+        Facility desiredKey
+        desiredKey = Facility.values().find {it.fullName.equals(value.trim())}
+        if (!desiredKey) {
+            throw new IllegalArgumentException("Invalid value '$value' for ${Facility.getSimpleName()}")
+        }
+        return desiredKey
+    }
+}