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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CXF-7571) Revamp of the CXF injection implementation
Date Mon, 04 Dec 2017 23:22:00 GMT

    [ https://issues.apache.org/jira/browse/CXF-7571?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16277736#comment-16277736
] 

ASF GitHub Bot commented on CXF-7571:
-------------------------------------

reta commented on a change in pull request #351: [CXF-7571] Adding support for CDI injection
of @Context objects.
URL: https://github.com/apache/cxf/pull/351#discussion_r154805454
 
 

 ##########
 File path: integration/cdi/src/main/java/org/apache/cxf/cdi/DelegateContextAnnotatedType.java
 ##########
 @@ -0,0 +1,182 @@
+/**
+ * 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.cdi;
+
+import java.lang.annotation.Annotation;
+import java.lang.reflect.Field;
+import java.lang.reflect.Type;
+import java.util.Collections;
+import java.util.LinkedHashSet;
+import java.util.Set;
+import static java.util.stream.Collectors.toSet;
+import javax.enterprise.inject.spi.AnnotatedConstructor;
+import javax.enterprise.inject.spi.AnnotatedField;
+import javax.enterprise.inject.spi.AnnotatedMethod;
+import javax.enterprise.inject.spi.AnnotatedType;
+import javax.enterprise.util.AnnotationLiteral;
+import javax.inject.Inject;
+import javax.ws.rs.core.Context;
+
+final class DelegateContextAnnotatedType<X> implements AnnotatedType<X> {
+    private static final Inject INJECT = new InjectLiteral();
+    private static final ContextResolved CONTEXT_RESOLVED = ContextResolved.LITERAL;
+    private final AnnotatedType<X> original;
+    private final Set<AnnotatedField<? super X>> replacedFields;
+
+    DelegateContextAnnotatedType(AnnotatedType<X> original) {
+        this.original = original;
+        this.replacedFields = replaceFields(original);
+    }
+
+    private Set<AnnotatedField<? super X>> replaceFields(AnnotatedType<? super
X> delegate) {
+        return delegate.getFields().stream().map(this::wrap).collect(toSet());
+    }
+
+    Set<Type> getContextFieldTypes() {
+        return replacedFields.stream()
+                .filter(f -> f.isAnnotationPresent(Context.class) || f.isAnnotationPresent(ContextResolved.class))
 
 Review comment:
   I think we could only manually register the context providers which come from CXF, but
not the user ones. May be we could deduct the context providers by introspecting the providers
/ resources / features during the `collect`? We have interface to check for, `ContextProvider`,
this should for all cases. What do you think?

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>  Revamp of the CXF injection implementation
> -------------------------------------------
>
>                 Key: CXF-7571
>                 URL: https://issues.apache.org/jira/browse/CXF-7571
>             Project: CXF
>          Issue Type: Improvement
>            Reporter: Andriy Redko
>            Assignee: John D. Ament
>
> As more deep integration with CDI revealed, there are complexities in bringing together
{{@Context}}- and {{@Inject}}-based injections. Encapsulating CXF injection implementation
and than delegating the hard work to appropriate strategy (CDI, Spring, ...) would be the
right solution to address the problem at its roots.



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