rmannibucau commented on a change in pull request #619: CXF-8188: Inject into 
ClientHeadersFactory
URL: https://github.com/apache/cxf/pull/619#discussion_r367076744
 
 

 ##########
 File path: 
rt/rs/microprofile-client/src/main/java/org/apache/cxf/microprofile/client/cdi/CDIUtils.java
 ##########
 @@ -0,0 +1,56 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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.apache.cxf.microprofile.client.cdi;
+
+import java.util.NoSuchElementException;
+
+import javax.enterprise.context.spi.CreationalContext;
+import javax.enterprise.inject.spi.Bean;
+import javax.enterprise.inject.spi.BeanManager;
+import javax.enterprise.inject.spi.CDI;
+
+public final class CDIUtils {
+
+    private CDIUtils() {
+    }
+
+    public static <T> T getInstanceFromCDI(Class<T> clazz) {
+        T t;
+        try {
+            t = findBean(clazz);
+        } catch (ExceptionInInitializerError | NoClassDefFoundError | 
IllegalStateException ex) {
+            // expected if no CDI implementation is available
+            t = null;
+        } catch (NoSuchElementException ex) {
+            // expected if ClientHeadersFactory is not managed by CDI
+            t = null;
+        }
+        return t;
+    }
+
+    @SuppressWarnings("unchecked")
+    private static <T> T findBean(Class<T> clazz) {
+        BeanManager beanManager = CDI.current().getBeanManager();
+        Bean<?> bean = beanManager.getBeans(clazz).iterator().next();
+        CreationalContext<?> ctx = beanManager.createCreationalContext(bean);
 
 Review comment:
   Second param should be sthg like:
   
        beanManager.isNormalScope(bean.getScope()) ? () -> {} : context::release
   
   Normal scope lifecycle is already handled by the container.
   
   Otherwise perfect for me.

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