89 lines
2.5 KiB
Java
89 lines
2.5 KiB
Java
/*
|
|
* Copyright (c) 2001, Oracle and/or its affiliates. All rights reserved.
|
|
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
*
|
|
* This code is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License version 2 only, as
|
|
* published by the Free Software Foundation. Oracle designates this
|
|
* particular file as subject to the "Classpath" exception as provided
|
|
* by Oracle in the LICENSE file that accompanied this code.
|
|
*
|
|
* This code is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
* version 2 for more details (a copy is included in the LICENSE file that
|
|
* accompanied this code).
|
|
*
|
|
* You should have received a copy of the GNU General Public License version
|
|
* 2 along with this work; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
* or visit www.oracle.com if you need additional information or have any
|
|
* questions.
|
|
*/
|
|
|
|
package sun.reflect;
|
|
|
|
class ByteVectorImpl implements ByteVector {
|
|
private byte[] data;
|
|
private int pos;
|
|
|
|
public ByteVectorImpl() {
|
|
this(100);
|
|
}
|
|
|
|
public ByteVectorImpl(int sz) {
|
|
data = new byte[sz];
|
|
pos = -1;
|
|
}
|
|
|
|
public int getLength() {
|
|
return pos + 1;
|
|
}
|
|
|
|
public byte get(int index) {
|
|
if (index >= data.length) {
|
|
resize(index);
|
|
pos = index;
|
|
}
|
|
return data[index];
|
|
}
|
|
|
|
public void put(int index, byte value) {
|
|
if (index >= data.length) {
|
|
resize(index);
|
|
pos = index;
|
|
}
|
|
data[index] = value;
|
|
}
|
|
|
|
public void add(byte value) {
|
|
if (++pos >= data.length) {
|
|
resize(pos);
|
|
}
|
|
data[pos] = value;
|
|
}
|
|
|
|
public void trim() {
|
|
if (pos != data.length - 1) {
|
|
byte[] newData = new byte[pos + 1];
|
|
System.arraycopy(data, 0, newData, 0, pos + 1);
|
|
data = newData;
|
|
}
|
|
}
|
|
|
|
public byte[] getData() {
|
|
return data;
|
|
}
|
|
|
|
private void resize(int minSize) {
|
|
if (minSize <= 2 * data.length) {
|
|
minSize = 2 * data.length;
|
|
}
|
|
byte[] newData = new byte[minSize];
|
|
System.arraycopy(data, 0, newData, 0, data.length);
|
|
data = newData;
|
|
}
|
|
}
|