/**
* Constructs a CompoundVecBuffer with the specified initial capacity.
*
* @param capacity the CompoundVecBuffer's initial capacity, in number of sub-buffers.
*
* @throws ArgumentException if the capacity is less than 1.
*/
public CompoundVecBuffer(int capacity)
{
if (capacity < 1)
{
String message = Logging.getMessage("generic.CapacityIsInvalid", capacity);
Logging.logger().severe(message);
throw new ArgumentException(message);
}
this.capacity = capacity;
this.offsets = WWBufferUtil.newIntBuffer(capacity, ALLOCATE_DIRECT_BUFFERS);
this.lengths = WWBufferUtil.newIntBuffer(capacity, ALLOCATE_DIRECT_BUFFERS);
}
protected CompoundVecBuffer(CompoundVecBuffer that, int[] indices, int offset, int length)
{
this.count = length;
this.capacity = length;
this.offsets = WWBufferUtil.newIntBuffer(length, ALLOCATE_DIRECT_BUFFERS);
this.lengths = WWBufferUtil.newIntBuffer(length, ALLOCATE_DIRECT_BUFFERS);
for (int i = offset; i < offset + length; i++)
{
this.offsets.put(that.offsets.get(indices[i]));
this.lengths.put(that.lengths.get(indices[i]));
}
this.offsets.rewind();
this.lengths.rewind();
}
protected void expandCapacity(int minCapacity)
{
int newCapacity = 2 * this.capacity;
// If the new capacity overflows the range of 32-bit integers, then use the largest 32-bit integer.
if (newCapacity < 0)
{
newCapacity = Integer.MAX_VALUE;
}
// If the new capacity is still not large enough for the minimum capacity specified, then just use the minimum
// capacity specified.
else if (newCapacity < minCapacity)
{
newCapacity = minCapacity;
}
this.offsets = WWBufferUtil.copyOf(this.offsets, newCapacity);
this.lengths = WWBufferUtil.copyOf(this.lengths, newCapacity);
this.capacity = newCapacity;
}
protected CompoundVecBuffer(CompoundVecBuffer that, int beginIndex, int endIndex)
{
int length = endIndex - beginIndex + 1;
this.count = length;
this.capacity = length;
this.offsets = WWBufferUtil.newIntBuffer(length, ALLOCATE_DIRECT_BUFFERS);
that.offsets.limit(endIndex + 1);
that.offsets.position(beginIndex);
this.offsets.put(that.offsets);
this.offsets.rewind();
that.offsets.clear();
this.lengths = WWBufferUtil.newIntBuffer(length, ALLOCATE_DIRECT_BUFFERS);
that.lengths.limit(endIndex + 1);
that.lengths.position(beginIndex);
this.lengths.put(that.lengths);
this.lengths.rewind();
that.lengths.clear();
}
