//package org.javacore.io;
//
//import java.io.IOException;
//import java.io.InputStream;
//
///**
// * A <code>ByteArrayInputStream</code> contains
// * an internal buffer that contains bytes that
// * may be read from the stream. An internal
// * counter keeps track of the next byte to
// * be supplied by the <code>read</code> method.
// * <p>
// * Closing a <tt>ByteArrayInputStream</tt> has no effect. The methods in
// * this class can be called after the stream has been closed without
// * generating an <tt>IOException</tt>.
// */
//public
//class SByteArrayInputStream extends InputStream {
//
// /**
// * An array of bytes that was provided
// * by the creator of the stream. Elements <code>buf[0]</code>
// * through <code>buf[count-1]</code> are the
// * only bytes that can ever be read from the
// * stream; element <code>buf[pos]</code> is
// * the next byte to be read.
// */
// protected byte buf[];
//
// /**
// * The index of the next character to read from the input stream buffer.
// * This value should always be nonnegative
// * and not larger than the value of <code>count</code>.
// * The next byte to be read from the input stream buffer
// * will be <code>buf[pos]</code>.
// */
// protected int pos;
//
// /**
// * The currently marked position in the stream.
// * ByteArrayInputStream objects are marked at position zero by
// * default when constructed. They may be marked at another
// * position within the buffer by the <code>mark()</code> method.
// * The current buffer position is set to this point by the
// * <code>reset()</code> method.
// * <p>
// * If no mark has been set, then the value of mark is the offset
// * passed to the constructor (or 0 if the offset was not supplied).
// *
// * @since JDK1.1
// */
// protected int mark = 0;
//
// /**
// * The index one greater than the last valid character in the input
// * stream buffer.
// * This value should always be nonnegative
// * and not larger than the length of <code>buf</code>.
// * It is one greater than the position of
// * the last byte within <code>buf</code> that
// * can ever be read from the input stream buffer.
// */
// protected int count;
//
// /**
// * Creates a <code>ByteArrayInputStream</code>
// * so that it uses <code>buf</code> as its
// * buffer array.
// * The buffer array is not copied.
// * The initial value of <code>pos</code>
// * is <code>0</code> and the initial value
// * of <code>count</code> is the length of
// * <code>buf</code>.
// *
// * @param buf the input buffer.
// */
// public ByteArrayInputStream(byte buf[]) {
// this.buf = buf;
// this.pos = 0;
// this.count = buf.length;
// }
//
// /**
// * Creates <code>ByteArrayInputStream</code>
// * that uses <code>buf</code> as its
// * buffer array. The initial value of <code>pos</code>
// * is <code>offset</code> and the initial value
// * of <code>count</code> is the minimum of <code>offset+length</code>
// * and <code>buf.length</code>.
// * The buffer array is not copied. The buffer's mark is
// * set to the specified offset.
// *
// * @param buf the input buffer.
// * @param offset the offset in the buffer of the first byte to read.
// * @param length the maximum number of bytes to read from the buffer.
// */
// public ByteArrayInputStream(byte buf[], int offset, int length) {
// this.buf = buf;
// this.pos = offset;
// this.count = Math.min(offset + length, buf.length);
// this.mark = offset;
// }
//
// /**
// * Reads the next byte of data from this input stream. The value
// * byte is returned as an <code>int</code> in the range
// * <code>0</code> to <code>255</code>. If no byte is available
// * because the end of the stream has been reached, the value
// * <code>-1</code> is returned.
// * <p>
// * This <code>read</code> method
// * cannot block.
// *
// * @return the next byte of data, or <code>-1</code> if the end of the
// * stream has been reached.
// */
// public synchronized int read() {
// return (pos < count) ? (buf[pos++] & 0xff) : -1;
// }
//
// /**
// * Reads up to <code>len</code> bytes of data into an array of bytes
// * from this input stream.
// * If <code>pos</code> equals <code>count</code>,
// * then <code>-1</code> is returned to indicate
// * end of file. Otherwise, the number <code>k</code>
// * of bytes read is equal to the smaller of
// * <code>len</code> and <code>count-pos</code>.
// * If <code>k</code> is positive, then bytes
// * <code>buf[pos]</code> through <code>buf[pos+k-1]</code>
// * are copied into <code>b[off]</code> through
// * <code>b[off+k-1]</code> in the manner performed
// * by <code>System.arraycopy</code>. The
// * value <code>k</code> is added into <code>pos</code>
// * and <code>k</code> is returned.
// * <p>
// * This <code>read</code> method cannot block.
// *
// * @param b the buffer into which the data is read.
// * @param off the start offset in the destination array <code>b</code>
// * @param len the maximum number of bytes read.
// * @return the total number of bytes read into the buffer, or
// * <code>-1</code> if there is no more data because the end of
// * the stream has been reached.
// * @exception NullPointerException If <code>b</code> is <code>null</code>.
// * @exception IndexOutOfBoundsException If <code>off</code> is negative,
// * <code>len</code> is negative, or <code>len</code> is greater than
// * <code>b.length - off</code>
// */
// public synchronized int read(byte b[], int off, int len) {
// if (b == null) {
// throw new NullPointerException();
// } else if (off < 0 || len < 0 || len > b.length - off) {
// throw new IndexOutOfBoundsException();
// }
//
// if (pos >= count) {
// return -1;
// }
//
// int avail = count - pos;
// if (len > avail) {
// len = avail;
// }
// if (len <= 0) {
// return 0;
// }
// System.arraycopy(buf, pos, b, off, len);
// pos += len;
// return len;
// }
//
// /**
// * Skips <code>n</code> bytes of input from this input stream. Fewer
// * bytes might be skipped if the end of the input stream is reached.
// * The actual number <code>k</code>
// * of bytes to be skipped is equal to the smaller
// * of <code>n</code> and <code>count-pos</code>.
// * The value <code>k</code> is added into <code>pos</code>
// * and <code>k</code> is returned.
// *
// * @param n the number of bytes to be skipped.
// * @return the actual number of bytes skipped.
// */
// public synchronized long skip(long n) {
// long k = count - pos;
// if (n < k) {
// k = n < 0 ? 0 : n;
// }
//
// pos += k;
// return k;
// }
//
// /**
// * Returns the number of remaining bytes that can be read (or skipped over)
// * from this input stream.
// * <p>
// * The value returned is <code>count - pos</code>,
// * which is the number of bytes remaining to be read from the input buffer.
// *
// * @return the number of remaining bytes that can be read (or skipped
// * over) from this input stream without blocking.
// */
// public synchronized int available() {
// return count - pos;
// }
//
// /**
// * Tests if this <code>InputStream</code> supports mark/reset. The
// * <code>markSupported</code> method of <code>ByteArrayInputStream</code>
// * always returns <code>true</code>.
// *
// * @since JDK1.1
// */
// public boolean markSupported() {
// return true;
// }
//
// /**
// * Set the current marked position in the stream.
// * ByteArrayInputStream objects are marked at position zero by
// * default when constructed. They may be marked at another
// * position within the buffer by this method.
// * <p>
// * If no mark has been set, then the value of the mark is the
// * offset passed to the constructor (or 0 if the offset was not
// * supplied).
// *
// * <p> Note: The <code>readAheadLimit</code> for this class
// * has no meaning.
// *
// * @since JDK1.1
// */
// public void mark(int readAheadLimit) {
// mark = pos;
// }
//
// /**
// * Resets the buffer to the marked position. The marked position
// * is 0 unless another position was marked or an offset was specified
// * in the constructor.
// */
// public synchronized void reset() {
// pos = mark;
// }
//
// /**
// * Closing a <tt>ByteArrayInputStream</tt> has no effect. The methods in
// * this class can be called after the stream has been closed without
// * generating an <tt>IOException</tt>.
// * <p>
// */
// public void close() throws IOException {
// }
//
//}
//