forked from External/mage
116 lines
3.6 KiB
Java
116 lines
3.6 KiB
Java
/*
|
|
* Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without modification, are
|
|
* permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice, this list of
|
|
* conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
|
|
* of conditions and the following disclaimer in the documentation and/or other materials
|
|
* provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY BetaSteward_at_googlemail.com ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
|
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
|
|
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BetaSteward_at_googlemail.com OR
|
|
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
|
|
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
|
|
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* The views and conclusions contained in the software and documentation are those of the
|
|
* authors and should not be interpreted as representing official policies, either expressed
|
|
* or implied, of BetaSteward_at_googlemail.com.
|
|
*/
|
|
|
|
package mage.util;
|
|
|
|
import java.io.InputStream;
|
|
import java.io.OutputStream;
|
|
|
|
/**
|
|
* ByteArrayOutputStream implementation that doesn't synchronize methods
|
|
* and doesn't copy the data on toByteArray().
|
|
*/
|
|
public class FastByteArrayOutputStream extends OutputStream {
|
|
/**
|
|
* Buffer and size
|
|
*/
|
|
protected byte[] buf = null;
|
|
protected int size = 0;
|
|
|
|
/**
|
|
* Constructs a stream with buffer capacity size 5K
|
|
*/
|
|
public FastByteArrayOutputStream() {
|
|
this(5 * 1024);
|
|
}
|
|
|
|
/**
|
|
* Constructs a stream with the given initial size
|
|
*/
|
|
public FastByteArrayOutputStream(int initSize) {
|
|
this.size = 0;
|
|
this.buf = new byte[initSize];
|
|
}
|
|
|
|
/**
|
|
* Ensures that we have a large enough buffer for the given size.
|
|
*/
|
|
private void verifyBufferSize(int sz) {
|
|
if (sz > buf.length) {
|
|
byte[] old = buf;
|
|
buf = new byte[Math.max(sz, 2 * buf.length )];
|
|
System.arraycopy(old, 0, buf, 0, old.length);
|
|
old = null;
|
|
}
|
|
}
|
|
|
|
public int getSize() {
|
|
return size;
|
|
}
|
|
|
|
/**
|
|
* Returns the byte array containing the written data. Note that this
|
|
* array will almost always be larger than the amount of data actually
|
|
* written.
|
|
*/
|
|
public byte[] getByteArray() {
|
|
return buf;
|
|
}
|
|
|
|
@Override
|
|
public final void write(byte b[]) {
|
|
verifyBufferSize(size + b.length);
|
|
System.arraycopy(b, 0, buf, size, b.length);
|
|
size += b.length;
|
|
}
|
|
|
|
@Override
|
|
public final void write(byte b[], int off, int len) {
|
|
verifyBufferSize(size + len);
|
|
System.arraycopy(b, off, buf, size, len);
|
|
size += len;
|
|
}
|
|
|
|
@Override
|
|
public final void write(int b) {
|
|
verifyBufferSize(size + 1);
|
|
buf[size++] = (byte) b;
|
|
}
|
|
|
|
public void reset() {
|
|
size = 0;
|
|
}
|
|
|
|
/**
|
|
* Returns a ByteArrayInputStream for reading back the written data
|
|
*/
|
|
public InputStream getInputStream() {
|
|
return new FastByteArrayInputStream(buf, size);
|
|
}
|
|
|
|
}
|