forked from External/mage
64 lines
1.2 KiB
Java
64 lines
1.2 KiB
Java
|
|
|
|
package mage.util;
|
|
|
|
import java.io.InputStream;
|
|
|
|
/**
|
|
* ByteArrayInputStream implementation that does not synchronize methods.
|
|
*/
|
|
public class FastByteArrayInputStream extends InputStream {
|
|
/**
|
|
* Our byte buffer
|
|
*/
|
|
protected byte[] buf = null;
|
|
|
|
/**
|
|
* Number of bytes that we can read from the buffer
|
|
*/
|
|
protected int count = 0;
|
|
|
|
/**
|
|
* Number of bytes that have been read from the buffer
|
|
*/
|
|
protected int pos = 0;
|
|
|
|
public FastByteArrayInputStream(byte[] buf, int count) {
|
|
this.buf = buf;
|
|
this.count = count;
|
|
}
|
|
|
|
@Override
|
|
public final int available() {
|
|
return count - pos;
|
|
}
|
|
|
|
@Override
|
|
public final int read() {
|
|
return (pos < count) ? (buf[pos++] & 0xff) : -1;
|
|
}
|
|
|
|
@Override
|
|
public final int read(byte[] b, int off, int len) {
|
|
if (pos >= count)
|
|
return -1;
|
|
|
|
if ((pos + len) > count)
|
|
len = (count - pos);
|
|
|
|
System.arraycopy(buf, pos, b, off, len);
|
|
pos += len;
|
|
return len;
|
|
}
|
|
|
|
@Override
|
|
public final long skip(long n) {
|
|
if ((pos + n) > count)
|
|
n = count - pos;
|
|
if (n < 0)
|
|
return 0;
|
|
pos += n;
|
|
return n;
|
|
}
|
|
|
|
}
|