Merge pull421

Conflicts:
	changelog.html

changelog.html

@@ -67,7 +67,9 @@ Upcoming changes</a>
   <li class=rfe>
     Added the View.READ permission to control visibility of views, and updated the default implementation to hide empty views.
     (<a href="https://issues.jenkins-ci.org/browse/JENKINS-3681">issue 3681</a>)  
-
+  <li class=rfe>
+    Added new extension point for transient build actions.
+    (<a href="https://github.com/jenkinsci/jenkins/pull/421">pull 421</a>)
 </ul>
 </div><!--=TRUNK-END=-->
 

core/src/main/java/hudson/model/AbstractBuild.java

@@ -87,6 +87,7 @@ import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
+import java.util.Vector;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
@@ -882,6 +883,25 @@ public abstract class AbstractBuild<P extends AbstractProject<P,R>,R extends Abs
     public Calendar due() {
         return getTimestamp();
     }
+    
+     /**
+     * Add all transient action for this build
+     * 
+     */
+    protected List<Action> createTransientActions() {
+        Vector<Action> ta = new Vector<Action>();
+        for (TransientBuildActionFactory tpaf : TransientBuildActionFactory.all())
+            ta.addAll(Util.fixNull(tpaf.createFor(this)));
+        return ta;
+    }    
+
+    @Override
+    public synchronized List<Action> getActions() {
+        List<Action> actions = new Vector<Action>(super.getActions());
+        //add transient actions too
+        actions.addAll(createTransientActions());       
+        return actions;
+    }
 
     /**
      * Builds up a set of variable names that contain sensitive values that

core/src/main/java/hudson/model/TransientBuildActionFactory.java

+package hudson.model;
+
+import hudson.Extension;
+import hudson.ExtensionList;
+import hudson.ExtensionPoint;
+import jenkins.model.Jenkins;
+import java.util.Collection;
+
+/**
+ * Extension point for inserting transient {@link Action}s into {@link AbstractBuild}s.
+ *
+ * To register your implementation, put {@link Extension} on your subtype.
+ *
+ * @author Lucie Votypkova
+ * @since 1.458
+ * @see Action
+ */
+
+public abstract class TransientBuildActionFactory implements ExtensionPoint {
+    /**
+     * Creates actions for the given build.
+     *
+     * @param project for which the action objects are requested. Never null.
+     * @return Can be empty but must not be null.
+     */
+    public abstract Collection<? extends Action> createFor(AbstractBuild target);
+
+    /**
+     * Returns all the registered {@link TransientBuildActionFactory}s.
+     */
+    public static ExtensionList<TransientBuildActionFactory> all() {
+        return Jenkins.getInstance().getExtensionList(TransientBuildActionFactory.class);
+    }
+}
\ No newline at end of file