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Posted to commits@velocity.apache.org by nb...@apache.org on 2010/08/30 21:03:37 UTC

svn commit: r990898 - in /velocity/tools/trunk/src: main/java/org/apache/velocity/tools/generic/LoopTool.java test/java/org/apache/velocity/tools/generic/LoopToolTests.java test/java/org/apache/velocity/tools/generic/Veltools128Tests.java

Author: nbubna
Date: Mon Aug 30 19:03:36 2010
New Revision: 990898

URL: http://svn.apache.org/viewvc?rev=990898&view=rev
Log:
VELTOOLS-128 fix sync problems

Added:
    velocity/tools/trunk/src/test/java/org/apache/velocity/tools/generic/Veltools128Tests.java   (with props)
Modified:
    velocity/tools/trunk/src/main/java/org/apache/velocity/tools/generic/LoopTool.java
    velocity/tools/trunk/src/test/java/org/apache/velocity/tools/generic/LoopToolTests.java

Modified: velocity/tools/trunk/src/main/java/org/apache/velocity/tools/generic/LoopTool.java
URL: http://svn.apache.org/viewvc/velocity/tools/trunk/src/main/java/org/apache/velocity/tools/generic/LoopTool.java?rev=990898&r1=990897&r2=990898&view=diff
==============================================================================
--- velocity/tools/trunk/src/main/java/org/apache/velocity/tools/generic/LoopTool.java (original)
+++ velocity/tools/trunk/src/main/java/org/apache/velocity/tools/generic/LoopTool.java Mon Aug 30 19:03:36 2010
@@ -94,6 +94,7 @@ public class LoopTool
 {
     private Stack<ManagedIterator> iterators = new Stack<ManagedIterator>();
     private ManagedIterator last;
+    private Map<String,Object> lastSyncedValues;
 
     /**
      * <p>Tells the LoopTool to watch the specified Array, Collection, Map,
@@ -401,6 +402,14 @@ public class LoopTool
                 return iterator.get(key);
             }
         }
+        if (lastSyncedValues != null)
+        {
+            Object syncedValue = lastSyncedValues.get(key);
+            if (syncedValue != null)
+            {
+                return syncedValue;
+            }
+        }
         // shortest key would be "last_X" where X is the loop name
         if (key == null || key.length() < 6)
         {
@@ -553,7 +562,9 @@ public class LoopTool
      */
     protected ManagedIterator pop()
     {
-        return iterators.pop();
+        ManagedIterator i = iterators.pop();
+        this.lastSyncedValues = i.getLastSyncedValues();
+        return i;
     }
 
 
@@ -739,9 +750,6 @@ public class LoopTool
                     }
                 }
             }
-
-            // ok, looks like we have a next that met all the conditions
-            shiftSynced();
             return true;
         }
 
@@ -839,6 +847,8 @@ public class LoopTool
             Object value = this.next;
             // clear the cache
             this.next = null;
+            // call next on synced ones
+            shiftSynced();
             // return the no-longer-cached value
             return value;
         }
@@ -905,7 +915,7 @@ public class LoopTool
          * <p>Adds another iterator to be kept in sync with the one
          * being managed by this instance.  The values of the parallel
          * iterator can be retrieved from the LoopTool under the
-         * name s"synced" (e.g. $loop.synched or $loop.get('synced'))
+         * name s"synced" (e.g. $loop.synced or $loop.get('synced'))
          * and are automatically updated for each iteration by this instance.
          * </p><p><b>NOTE</b>: if you are sync'ing multiple iterators
          * with the same managed iterator, you must use 
@@ -948,6 +958,20 @@ public class LoopTool
             return this;
         }
 
+        public Map<String,Object> getLastSyncedValues()
+        {
+            if (synced == null)
+            {
+                return null;
+            }
+            Map<String,Object> syncs = new HashMap<String,Object>();
+            for (String key : synced.keySet())
+            {
+                syncs.put(key, synced.get(key).get());
+            }
+            return syncs;
+        }
+
         @Override
         public String toString()
         {

Modified: velocity/tools/trunk/src/test/java/org/apache/velocity/tools/generic/LoopToolTests.java
URL: http://svn.apache.org/viewvc/velocity/tools/trunk/src/test/java/org/apache/velocity/tools/generic/LoopToolTests.java?rev=990898&r1=990897&r2=990898&view=diff
==============================================================================
--- velocity/tools/trunk/src/test/java/org/apache/velocity/tools/generic/LoopToolTests.java (original)
+++ velocity/tools/trunk/src/test/java/org/apache/velocity/tools/generic/LoopToolTests.java Mon Aug 30 19:03:36 2010
@@ -306,16 +306,18 @@ public class LoopToolTests {
         // is, of course, impossible in a template, but it
         // makes writing a reasonable test for this method a lot
         // easier.
-        //NOTE: this reliese on the default name for synced iterators
+        //NOTE: this relies on the default name for synced iterators
         //      being "synced", for i being "loop0", and for j being "loop1"
         Iterator i = loop.watch(ARRAY).sync(other);
         Iterator j = loop.watch(other).sync(ARRAY);
         while (i.hasNext() && j.hasNext())
         {
+            Object ival = i.next();
+            Object jval = j.next();
             // i and loop.synced (aka loop.get("loop1","synced")) should match
-            assertEquals(i.next(), loop.get("synced"));
+            assertEquals(ival, loop.get("synced"));
             // j and loop.get("loop0","synced") should match
-            assertEquals(j.next(), loop.get("loop0", "synced"));
+            assertEquals(jval, loop.get("loop0", "synced"));
         }
     }
 

Added: velocity/tools/trunk/src/test/java/org/apache/velocity/tools/generic/Veltools128Tests.java
URL: http://svn.apache.org/viewvc/velocity/tools/trunk/src/test/java/org/apache/velocity/tools/generic/Veltools128Tests.java?rev=990898&view=auto
==============================================================================
--- velocity/tools/trunk/src/test/java/org/apache/velocity/tools/generic/Veltools128Tests.java (added)
+++ velocity/tools/trunk/src/test/java/org/apache/velocity/tools/generic/Veltools128Tests.java Mon Aug 30 19:03:36 2010
@@ -0,0 +1,48 @@
+package org.apache.velocity.tools.generic;
+
+/*
+ * 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;
+
+/**
+ * This class tests VELOCITY-762.
+ */
+public class Veltools128Tests extends BaseTestCase
+{
+    public Veltools128Tests(String name)
+    {
+        super(name);
+    }
+
+    protected void setUpContext(VelocityContext context)
+    {
+        context.put("loop", new LoopTool());
+    }
+
+    public void testLoopToolSync()
+    {
+        String template = 
+            "#foreach( $item in $loop.watch([1..3]).sync([3..5], 'other') )"+
+            "$item:$loop.other "+
+            "#end";
+        assertEvalEquals("1:3 2:4 3:5 ", template);
+    }
+
+}

Propchange: velocity/tools/trunk/src/test/java/org/apache/velocity/tools/generic/Veltools128Tests.java
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