From: Erik Brakkee <erik@brakkee.org>
Date: Thu, 15 Jul 2010 12:55:19 +0000 (+0000)
Subject: (no commit message)
X-Git-Tag: wamblee-utils-0.7~334
X-Git-Url: http://wamblee.org/gitweb/?a=commitdiff_plain;h=3568c5eb7d433a562300d44e1325097ceec05dc6;p=utils

---

diff --git a/support/cdi/src/main/java/org/wamblee/inject/InjectorFactoryBuilder.java b/support/cdi/src/main/java/org/wamblee/inject/InjectorFactoryBuilder.java
new file mode 100644
index 00000000..d6005005
--- /dev/null
+++ b/support/cdi/src/main/java/org/wamblee/inject/InjectorFactoryBuilder.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2005-2010 the original author or authors.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.wamblee.inject;
+
+import java.util.NoSuchElementException;
+import java.util.ServiceLoader;
+
+/**
+ * Utility for obtaining an implementation of the injector factory using
+ * {@link ServiceLoader}.
+ * 
+ * @author Erik Brakkee
+ */
+public class InjectorFactoryBuilder {
+
+    /**
+     * Gets the injector factory by using the first one found using 
+     * {@link ServiceLoader}. 
+     * 
+     * @return InjectorFactory. 
+     */
+    public static InjectorFactory getInjectorFactory() {
+        ServiceLoader<InjectorFactory> factories = ServiceLoader
+            .load(InjectorFactory.class);
+        try {
+            return (InjectorFactory) factories.iterator().next();
+        } catch (NoSuchElementException e) {
+            throw new RuntimeException("Can not find InjectorFactory to use");
+        }
+    }
+}