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Posted to commits@isis.apache.org by ah...@apache.org on 2018/05/17 12:35:15 UTC

[isis] branch master updated: ISIS-1929: gives IsisWicketApplication precedence when registering CL

This is an automated email from the ASF dual-hosted git repository.

ahuber pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/isis.git


The following commit(s) were added to refs/heads/master by this push:
     new 2a7c035  ISIS-1929: gives IsisWicketApplication precedence when registering CL
2a7c035 is described below

commit 2a7c0356b246b3922c292d8a4904bcb8c4117676
Author: Andi Huber <ah...@apache.org>
AuthorDate: Thu May 17 14:35:10 2018 +0200

    ISIS-1929: gives IsisWicketApplication precedence when registering CL
    
    Task-Url: https://issues.apache.org/jira/browse/ISIS-1929
---
 .../org/apache/isis/applib/internal/context/_Context.java  | 14 ++++++++++----
 .../restfulobjects/server/RestfulObjectsApplication.java   |  3 ++-
 .../isis/viewer/wicket/viewer/IsisWicketApplication.java   |  2 +-
 3 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/core/applib/src/main/java/org/apache/isis/applib/internal/context/_Context.java b/core/applib/src/main/java/org/apache/isis/applib/internal/context/_Context.java
index c600225..93bf27c 100644
--- a/core/applib/src/main/java/org/apache/isis/applib/internal/context/_Context.java
+++ b/core/applib/src/main/java/org/apache/isis/applib/internal/context/_Context.java
@@ -207,11 +207,17 @@ public final class _Context {
 	
 	/**
 	 * Set by the framework's bootstrapping mechanism.
+	 * @param classLoader the framework's default class loader
+	 * @param override whether to override if already registered
 	 */
-	public static void setDefaultClassLoaderIfAbsent(ClassLoader classLoader) {
-		if(_Context.getIfAny(ClassLoader.class)==null) {
-        	_Context.putSingleton(ClassLoader.class, Objects.requireNonNull(classLoader, "classLoader required"));	
-        }
+	public static void setDefaultClassLoader(ClassLoader classLoader, boolean override) {
+		final boolean alreadyRegistered = _Context.getIfAny(ClassLoader.class)!=null; 
+		if(!alreadyRegistered || override) {
+			// let writes to the map be atomic
+			synchronized (singletonMap) {   
+				singletonMap.put(toKey(ClassLoader.class), Objects.requireNonNull(classLoader, "classLoader required"));	
+			}
+		}
 	}
 	
 	// -- CLASS LOADING SHORTCUTS
diff --git a/core/viewer-restfulobjects-server/src/main/java/org/apache/isis/viewer/restfulobjects/server/RestfulObjectsApplication.java b/core/viewer-restfulobjects-server/src/main/java/org/apache/isis/viewer/restfulobjects/server/RestfulObjectsApplication.java
index e82d6f0..3f5864a 100644
--- a/core/viewer-restfulobjects-server/src/main/java/org/apache/isis/viewer/restfulobjects/server/RestfulObjectsApplication.java
+++ b/core/viewer-restfulobjects-server/src/main/java/org/apache/isis/viewer/restfulobjects/server/RestfulObjectsApplication.java
@@ -49,7 +49,8 @@ public class RestfulObjectsApplication extends AbstractJaxRsApplication {
 
         addClass(SwaggerSpecResource.class);
         
-        _Context.setDefaultClassLoaderIfAbsent(this.getClass().getClassLoader());
+        //override=false, allows for IsisWicketApplication to take precedence
+        _Context.setDefaultClassLoader(this.getClass().getClassLoader(), /*override*/false);
         addSingleton(IsisJaxrsServerPlugin.get().newRestfulObjectsJaxbWriterForXml());
         
 
diff --git a/core/viewer-wicket-impl/src/main/java/org/apache/isis/viewer/wicket/viewer/IsisWicketApplication.java b/core/viewer-wicket-impl/src/main/java/org/apache/isis/viewer/wicket/viewer/IsisWicketApplication.java
index 4984b24..17719fa 100644
--- a/core/viewer-wicket-impl/src/main/java/org/apache/isis/viewer/wicket/viewer/IsisWicketApplication.java
+++ b/core/viewer-wicket-impl/src/main/java/org/apache/isis/viewer/wicket/viewer/IsisWicketApplication.java
@@ -337,7 +337,7 @@ public class IsisWicketApplication
         try {
             super.init();
             
-            _Context.setDefaultClassLoaderIfAbsent(this.getClass().getClassLoader());
+            _Context.setDefaultClassLoader(this.getClass().getClassLoader(), true);
 
             futures = startBackgroundInitializationThreads();
 

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