Merge "Add createNewItem() to RingBuffer util class." (e780e8d2) · Commits · e / os / android_frameworks_base

core/java/com/android/internal/util/RingBuffer.java

+14 −9

Original line number	Diff line number	Diff line
		@@ -67,16 +67,21 @@ public class RingBuffer<T> {
		*/
		public T getNextSlot() {
		final int nextSlotIdx = indexOf(mCursor++);
		T item = mBuffer[nextSlotIdx];
		if (item == null) {
		if (mBuffer[nextSlotIdx] == null) {
		mBuffer[nextSlotIdx] = createNewItem();
		}
		return mBuffer[nextSlotIdx];
		}

		/**
		* @return a new object of type <T> or null if a new object could not be created.
		*/
		protected T createNewItem() {
		try {
		item = (T) mBuffer.getClass().getComponentType().newInstance();
		return (T) mBuffer.getClass().getComponentType().newInstance();
		} catch (IllegalAccessException \| InstantiationException e) {
		return null;
		}
		mBuffer[nextSlotIdx] = item;
		}
		return item;
		}

		public T[] toArray() {