| /* |
| * 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. |
| */ |
| |
| package java.nio; |
| |
| /** |
| * IntArrayBuffer, ReadWriteIntArrayBuffer and ReadOnlyIntArrayBuffer compose |
| * the implementation of array based int buffers. |
| * <p> |
| * ReadWriteIntArrayBuffer extends IntArrayBuffer with all the write methods. |
| * </p> |
| * <p> |
| * This class is marked final for runtime performance. |
| * </p> |
| * |
| */ |
| final class ReadWriteIntArrayBuffer extends IntArrayBuffer { |
| |
| static ReadWriteIntArrayBuffer copy(IntArrayBuffer other, int markOfOther) { |
| ReadWriteIntArrayBuffer buf = new ReadWriteIntArrayBuffer(other |
| .capacity(), other.backingArray, other.offset); |
| buf.limit = other.limit(); |
| buf.position = other.position(); |
| buf.mark = markOfOther; |
| return buf; |
| } |
| |
| ReadWriteIntArrayBuffer(int[] array) { |
| super(array); |
| } |
| |
| ReadWriteIntArrayBuffer(int capacity) { |
| super(capacity); |
| } |
| |
| ReadWriteIntArrayBuffer(int capacity, int[] backingArray, int arrayOffset) { |
| super(capacity, backingArray, arrayOffset); |
| } |
| |
| @Override |
| public IntBuffer asReadOnlyBuffer() { |
| return ReadOnlyIntArrayBuffer.copy(this, mark); |
| } |
| |
| @Override |
| public IntBuffer compact() { |
| System.arraycopy(backingArray, position + offset, backingArray, offset, |
| remaining()); |
| position = limit - position; |
| limit = capacity; |
| mark = UNSET_MARK; |
| return this; |
| } |
| |
| @Override |
| public IntBuffer duplicate() { |
| return copy(this, mark); |
| } |
| |
| @Override |
| public boolean isReadOnly() { |
| return false; |
| } |
| |
| @Override |
| protected int[] protectedArray() { |
| return backingArray; |
| } |
| |
| @Override |
| protected int protectedArrayOffset() { |
| return offset; |
| } |
| |
| @Override |
| protected boolean protectedHasArray() { |
| return true; |
| } |
| |
| @Override |
| public IntBuffer put(int c) { |
| if (position == limit) { |
| throw new BufferOverflowException(); |
| } |
| backingArray[offset + position++] = c; |
| return this; |
| } |
| |
| @Override |
| public IntBuffer put(int index, int c) { |
| if (index < 0 || index >= limit) { |
| throw new IndexOutOfBoundsException(); |
| } |
| backingArray[offset + index] = c; |
| return this; |
| } |
| |
| @Override |
| public IntBuffer put(int[] src, int off, int len) { |
| int length = src.length; |
| if (off < 0 || len < 0 || (long) off + (long) len > length) { |
| throw new IndexOutOfBoundsException(); |
| } |
| if (len > remaining()) { |
| throw new BufferOverflowException(); |
| } |
| System.arraycopy(src, off, backingArray, offset + position, len); |
| position += len; |
| return this; |
| } |
| |
| @Override |
| public IntBuffer slice() { |
| return new ReadWriteIntArrayBuffer(remaining(), backingArray, offset |
| + position); |
| } |
| |
| } |