*Ringbuffer: Remove Ringbuffer<T>.AllocEmptyArray interface to favor a more simple approach; Split 'grow' into 'growEmpty' and 'growFull'

- java.lang.reflect.Array can instantiate an array w/ a given array-type and length

- array-type is Class<? extends T[]>

- We either deduct the array-type via array.getClass(), or pass it (ctor for empty Ringbuffer).

- Split 'growBuffer(T[] newElements, int amount, ..)' into:
  - 'growEmptyBuffer(T[] newElements)'
  - 'growFullBuffer(int amount)'
  Allowing a more clean API w/ simpler semantics.

3 files changed, 19 insertions, 32 deletions

diff --git a/src/junit/com/jogamp/common/util/RingBuffer01Base.java b/src/junit/com/jogamp/common/util/RingBuffer01Base.java
index 7ac94d4..f7e8fcf 100644
--- a/src/junit/com/jogamp/common/util/RingBuffer01Base.java
+++ b/src/junit/com/jogamp/common/util/RingBuffer01Base.java
@@ -36,7 +36,7 @@ import com.jogamp.common.util.Ringbuffer;
 
 public abstract class RingBuffer01Base {
     private static boolean DEBUG = false;
-    
+        
     public abstract Ringbuffer<Integer> createEmpty(int initialCapacity);
     public abstract Ringbuffer<Integer> createFull(Integer[] source);
     
@@ -75,7 +75,7 @@ public abstract class RingBuffer01Base {
         Assert.assertTrue("Is full "+rb, !rb.isFull());
         
         for(int i=0; i<len; i++) {
-            rb.put( Integer.valueOf(startValue+i) );
+            Assert.assertTrue("Buffer is full at put #"+i+": "+rb, rb.put( Integer.valueOf(startValue+i) ));
         }
         
         Assert.assertEquals("Invalid size "+rb, preSize+len, rb.size());
@@ -225,13 +225,6 @@ public abstract class RingBuffer01Base {
         Assert.assertTrue("Not empty "+rb, rb.isEmpty());
     }
     
-    private static Ringbuffer.AllocEmptyArray<Integer> rbAllocIntArray = new Ringbuffer.AllocEmptyArray<Integer>() {
-        @Override
-        public Integer[] newArray(int size) {
-            return new Integer[size];
-        }        
-    };
-    
     private void test_GrowEmptyImpl(int initCapacity, int pos) {
         final int growAmount = 5;
         final int grownCapacity = initCapacity+growAmount;
@@ -248,7 +241,7 @@ public abstract class RingBuffer01Base {
         if( DEBUG ) {
             rb.dump(System.err, "GrowEmpty["+pos+"].pre1");
         }
-        rb.growBuffer(growArray, growAmount, rbAllocIntArray);
+        rb.growEmptyBuffer(growArray);
         if( DEBUG ) {
             rb.dump(System.err, "GrowEmpty["+pos+"].post");
         }
@@ -288,10 +281,6 @@ public abstract class RingBuffer01Base {
     private void test_GrowFullImpl(int initCapacity, int pos, boolean debug) {
         final int growAmount = 5;
         final int grownCapacity = initCapacity+growAmount;
-        final Integer[] growArray = new Integer[growAmount];
-        for(int i=0; i<growAmount; i++) {
-            growArray[i] = Integer.valueOf(100+i);
-        }
         final Integer[] source = createIntArray(initCapacity, 0);
         final Ringbuffer<Integer> rb = createFull(source);        
         
@@ -302,7 +291,7 @@ public abstract class RingBuffer01Base {
         if( DEBUG || debug ) {
             rb.dump(System.err, "GrowFull["+pos+"].pre1");
         }
-        rb.growBuffer(growArray, growAmount, rbAllocIntArray);
+        rb.growFullBuffer(growAmount);
         if( DEBUG || debug ) {
             rb.dump(System.err, "GrowFull["+pos+"].post");
         }
@@ -312,11 +301,22 @@ public abstract class RingBuffer01Base {
         Assert.assertTrue("Is full "+rb, !rb.isFull());
         Assert.assertTrue("Is empty "+rb, !rb.isEmpty());
         
+        for(int i=0; i<growAmount; i++) {
+            Assert.assertTrue("Buffer is full at put #"+i+": "+rb, rb.put( Integer.valueOf(100+i) ));
+        }
+        Assert.assertEquals("Not new size "+rb, grownCapacity, rb.size());
+        Assert.assertTrue("Not full "+rb, rb.isFull());
+        
         for(int i=0; i<initCapacity; i++) {
             Integer vI = rb.get();
             Assert.assertNotNull("Empty at read #"+(i+1)+": "+rb, vI);
             Assert.assertEquals("Wrong value at read #"+(i+1)+": "+rb, (pos+i)%initCapacity, vI.intValue());
         }
+        for(int i=0; i<growAmount; i++) {
+            Integer vI = rb.get();
+            Assert.assertNotNull("Empty at read #"+(i+1)+": "+rb, vI);
+            Assert.assertEquals("Wrong value at read #"+(i+1)+": "+rb, 100+i, vI.intValue());
+        }
         
         Assert.assertEquals("Not zero size "+rb, 0, rb.size());
         Assert.assertTrue("Not empty "+rb, rb.isEmpty());
diff --git a/src/junit/com/jogamp/common/util/TestLFRingBuffer01.java b/src/junit/com/jogamp/common/util/TestLFRingBuffer01.java
index 52e433d..bcfeb11 100644
--- a/src/junit/com/jogamp/common/util/TestLFRingBuffer01.java
+++ b/src/junit/com/jogamp/common/util/TestLFRingBuffer01.java
@@ -32,17 +32,11 @@ import com.jogamp.common.util.LFRingbuffer;
 import com.jogamp.common.util.Ringbuffer;
 
 public class TestLFRingBuffer01 extends RingBuffer01Base {
-    static final Ringbuffer.AllocEmptyArray<Integer> allocEmptyIntArray = new Ringbuffer.AllocEmptyArray<Integer>() {
-            @Override
-            public Integer[] newArray(int size) {
-                return new Integer[size];
-            } };
-            
     public Ringbuffer<Integer> createEmpty(int initialCapacity) {
-        return new LFRingbuffer<Integer>(initialCapacity, allocEmptyIntArray);
+        return new LFRingbuffer<Integer>(Integer[].class, initialCapacity);
     }
     public Ringbuffer<Integer> createFull(Integer[] source) {
-        return new LFRingbuffer<Integer>(source, allocEmptyIntArray);
+        return new LFRingbuffer<Integer>(source);
     }
     
     public static void main(String args[]) {
diff --git a/src/junit/com/jogamp/common/util/TestSyncRingBuffer01.java b/src/junit/com/jogamp/common/util/TestSyncRingBuffer01.java
index bc9284b..b598f15 100644
--- a/src/junit/com/jogamp/common/util/TestSyncRingBuffer01.java
+++ b/src/junit/com/jogamp/common/util/TestSyncRingBuffer01.java
@@ -32,18 +32,11 @@ import com.jogamp.common.util.Ringbuffer;
 import com.jogamp.common.util.SyncedRingbuffer;
 
 public class TestSyncRingBuffer01 extends RingBuffer01Base {
-    
-    static final Ringbuffer.AllocEmptyArray<Integer> allocEmptyIntArray = new Ringbuffer.AllocEmptyArray<Integer>() {
-            @Override
-            public Integer[] newArray(int size) {
-                return new Integer[size];
-            } };
-            
     public Ringbuffer<Integer> createEmpty(int initialCapacity) {
-        return new SyncedRingbuffer<Integer>(initialCapacity, allocEmptyIntArray);
+        return new SyncedRingbuffer<Integer>(Integer[].class, initialCapacity);
     }
     public Ringbuffer<Integer> createFull(Integer[] source) {
-        return new SyncedRingbuffer<Integer>(source, allocEmptyIntArray);
+        return new SyncedRingbuffer<Integer>(source);
     }
     
     public static void main(String args[]) {