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Subject: svn commit: r1753318 - in /velocity/engine/trunk/velocity-engine-core/src:
 main/java/org/apache/velocity/runtime/ test/java/org/apache/velocity/test/
Date: Mon, 18 Jul 2016 21:20:38 -0000
To: commits@velocity.apache.org
From: cbrisson@apache.org
Message-Id: <20160718212038.E591F3A012F@svn01-us-west.apache.org>
archived-at: Mon, 18 Jul 2016 21:20:43 -0000

Author: cbrisson
Date: Mon Jul 18 21:20:38 2016
New Revision: 1753318

URL: http://svn.apache.org/viewvc?rev=1753318&view=rev
Log:
[engine] add optionl context.autoreference.key property, with testcase

Added:
    velocity/engine/trunk/velocity-engine-core/src/test/java/org/apache/velocity/test/ContextAutoreferenceKeyTestCase.java
Modified:
    velocity/engine/trunk/velocity-engine-core/src/main/java/org/apache/velocity/runtime/RuntimeConstants.java
    velocity/engine/trunk/velocity-engine-core/src/main/java/org/apache/velocity/runtime/RuntimeInstance.java

Modified: velocity/engine/trunk/velocity-engine-core/src/main/java/org/apache/velocity/runtime/RuntimeConstants.java
URL: http://svn.apache.org/viewvc/velocity/engine/trunk/velocity-engine-core/src/main/java/org/apache/velocity/runtime/RuntimeConstants.java?rev=1753318&r1=1753317&r2=1753318&view=diff
==============================================================================
--- velocity/engine/trunk/velocity-engine-core/src/main/java/org/apache/velocity/runtime/RuntimeConstants.java (original)
+++ velocity/engine/trunk/velocity-engine-core/src/main/java/org/apache/velocity/runtime/RuntimeConstants.java Mon Jul 18 21:20:38 2016
@@ -246,6 +246,9 @@ public interface RuntimeConstants
     /** Switch for ignoring nulls in math equations vs throwing exceptions. */
     String STRICT_MATH = "runtime.strict.math";
 
+    /** Key upon which a context should be accessible within itself */
+    String CONTEXT_AUTOREFERENCE_KEY = "context.autoreference.key";
+
     /**
      * The <code>parser.pool.class</code> property specifies the name of the {@link org.apache.velocity.util.SimplePool}
      * implementation to use.
@@ -256,7 +259,7 @@ public interface RuntimeConstants
      * @see  #NUMBER_OF_PARSERS
      */
     String PARSER_POOL_SIZE = "parser.pool.size";
-    
+
     /*
      * ----------------------------------------------------------------------
      * These constants are used internally by the Velocity runtime i.e.

Modified: velocity/engine/trunk/velocity-engine-core/src/main/java/org/apache/velocity/runtime/RuntimeInstance.java
URL: http://svn.apache.org/viewvc/velocity/engine/trunk/velocity-engine-core/src/main/java/org/apache/velocity/runtime/RuntimeInstance.java?rev=1753318&r1=1753317&r2=1753318&view=diff
==============================================================================
--- velocity/engine/trunk/velocity-engine-core/src/main/java/org/apache/velocity/runtime/RuntimeInstance.java (original)
+++ velocity/engine/trunk/velocity-engine-core/src/main/java/org/apache/velocity/runtime/RuntimeInstance.java Mon Jul 18 21:20:38 2016
@@ -1410,6 +1410,11 @@ public class RuntimeInstance implements
                     Object previous = ica.get(evaluateScopeName);
                     context.put(evaluateScopeName, new Scope(this, previous));
                 }
+                /**
+                 * optionally put the context in itself if asked so
+                 */
+                String self = getString(CONTEXT_AUTOREFERENCE_KEY);
+                if (self != null) context.put(self, context);
                 nodeTree.render(ica, writer);
             }
             catch (StopCommand stop)

Added: velocity/engine/trunk/velocity-engine-core/src/test/java/org/apache/velocity/test/ContextAutoreferenceKeyTestCase.java
URL: http://svn.apache.org/viewvc/velocity/engine/trunk/velocity-engine-core/src/test/java/org/apache/velocity/test/ContextAutoreferenceKeyTestCase.java?rev=1753318&view=auto
==============================================================================
--- velocity/engine/trunk/velocity-engine-core/src/test/java/org/apache/velocity/test/ContextAutoreferenceKeyTestCase.java (added)
+++ velocity/engine/trunk/velocity-engine-core/src/test/java/org/apache/velocity/test/ContextAutoreferenceKeyTestCase.java Mon Jul 18 21:20:38 2016
@@ -0,0 +1,56 @@
+package org.apache.velocity.test;
+
+/*
+ * 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.    
+ */
+
+import org.apache.velocity.VelocityContext;
+import org.apache.velocity.app.VelocityEngine;
+
+/**
+ * This class tests passing expressions as method arguments
+ */
+
+public class ContextAutoreferenceKeyTestCase extends BaseTestCase
+{
+    public ContextAutoreferenceKeyTestCase(final String name)
+    {
+        super(name);
+    }
+
+    protected void setUpEngine(VelocityEngine engine)
+    {
+        engine.setProperty(VelocityEngine.CONTEXT_AUTOREFERENCE_KEY, "self");
+    }
+
+    protected void setUpContext(VelocityContext context)
+    {
+        context.put("foo", "bar");
+    }
+
+    public void testAutoreference()
+    {
+        assertEvalEquals("bar", "$foo");
+        assertEvalEquals("bar", "$self.foo");
+        assertEvalEquals("bar", "$self.self.foo");
+        assertEvalEquals("true", "$self.containsKey('foo')");
+        assertEvalEquals("false", "$self.containsKey('bar')");
+        assertEvalEquals("bar", "$self.put('foo', 'baz')");
+        assertEvalEquals("baz", "$foo");
+    }
+}