diff -r 3392f250c784 -r ecbd252fd3a7 emul/mini/src/main/java/java/io/FilterInputStream.java
--- a/emul/mini/src/main/java/java/io/FilterInputStream.java Fri Mar 22 16:59:47 2013 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,245 +0,0 @@
-/*
- * Copyright (c) 1994, 2010, 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 java.io;
-
-/**
- * A FilterInputStream
contains
- * some other input stream, which it uses as
- * its basic source of data, possibly transforming
- * the data along the way or providing additional
- * functionality. The class FilterInputStream
- * itself simply overrides all methods of
- * InputStream
with versions that
- * pass all requests to the contained input
- * stream. Subclasses of FilterInputStream
- * may further override some of these methods
- * and may also provide additional methods
- * and fields.
- *
- * @author Jonathan Payne
- * @since JDK1.0
- */
-public
-class FilterInputStream extends InputStream {
- /**
- * The input stream to be filtered.
- */
- protected volatile InputStream in;
-
- /**
- * Creates a FilterInputStream
- * by assigning the argument in
- * to the field this.in
so as
- * to remember it for later use.
- *
- * @param in the underlying input stream, or null
if
- * this instance is to be created without an underlying stream.
- */
- protected FilterInputStream(InputStream in) {
- this.in = in;
- }
-
- /**
- * Reads the next byte of data from this input stream. The value
- * byte is returned as an int
in the range
- * 0
to 255
. If no byte is available
- * because the end of the stream has been reached, the value
- * -1
is returned. This method blocks until input data
- * is available, the end of the stream is detected, or an exception
- * is thrown.
- *
- * This method
- * simply performs in.read()
and returns the result.
- *
- * @return the next byte of data, or -1
if the end of the
- * stream is reached.
- * @exception IOException if an I/O error occurs.
- * @see java.io.FilterInputStream#in
- */
- public int read() throws IOException {
- return in.read();
- }
-
- /**
- * Reads up to byte.length
bytes of data from this
- * input stream into an array of bytes. This method blocks until some
- * input is available.
- *
- * This method simply performs the call
- * read(b, 0, b.length)
and returns
- * the result. It is important that it does
- * not do in.read(b)
instead;
- * certain subclasses of FilterInputStream
- * depend on the implementation strategy actually
- * used.
- *
- * @param b the buffer into which the data is read.
- * @return the total number of bytes read into the buffer, or
- * -1
if there is no more data because the end of
- * the stream has been reached.
- * @exception IOException if an I/O error occurs.
- * @see java.io.FilterInputStream#read(byte[], int, int)
- */
- public int read(byte b[]) throws IOException {
- return read(b, 0, b.length);
- }
-
- /**
- * Reads up to len
bytes of data from this input stream
- * into an array of bytes. If len
is not zero, the method
- * blocks until some input is available; otherwise, no
- * bytes are read and 0
is returned.
- *
- * This method simply performs in.read(b, off, len)
- * and returns the result.
- *
- * @param b the buffer into which the data is read.
- * @param off the start offset in the destination array b
- * @param len the maximum number of bytes read.
- * @return the total number of bytes read into the buffer, or
- * -1
if there is no more data because the end of
- * the stream has been reached.
- * @exception NullPointerException If b
is null
.
- * @exception IndexOutOfBoundsException If off
is negative,
- * len
is negative, or len
is greater than
- * b.length - off
- * @exception IOException if an I/O error occurs.
- * @see java.io.FilterInputStream#in
- */
- public int read(byte b[], int off, int len) throws IOException {
- return in.read(b, off, len);
- }
-
- /**
- * Skips over and discards n
bytes of data from the
- * input stream. The skip
method may, for a variety of
- * reasons, end up skipping over some smaller number of bytes,
- * possibly 0
. The actual number of bytes skipped is
- * returned.
- *
- * This method simply performs in.skip(n)
.
- *
- * @param n the number of bytes to be skipped.
- * @return the actual number of bytes skipped.
- * @exception IOException if the stream does not support seek,
- * or if some other I/O error occurs.
- */
- public long skip(long n) throws IOException {
- return in.skip(n);
- }
-
- /**
- * Returns an estimate of the number of bytes that can be read (or
- * skipped over) from this input stream without blocking by the next
- * caller of a method for this input stream. The next caller might be
- * the same thread or another thread. A single read or skip of this
- * many bytes will not block, but may read or skip fewer bytes.
- *
- * This method returns the result of {@link #in in}.available().
- *
- * @return an estimate of the number of bytes that can be read (or skipped
- * over) from this input stream without blocking.
- * @exception IOException if an I/O error occurs.
- */
- public int available() throws IOException {
- return in.available();
- }
-
- /**
- * Closes this input stream and releases any system resources
- * associated with the stream.
- * This
- * method simply performs in.close()
.
- *
- * @exception IOException if an I/O error occurs.
- * @see java.io.FilterInputStream#in
- */
- public void close() throws IOException {
- in.close();
- }
-
- /**
- * Marks the current position in this input stream. A subsequent
- * call to the reset
method repositions this stream at
- * the last marked position so that subsequent reads re-read the same bytes.
- *
- * The readlimit
argument tells this input stream to
- * allow that many bytes to be read before the mark position gets
- * invalidated.
- *
- * This method simply performs in.mark(readlimit)
.
- *
- * @param readlimit the maximum limit of bytes that can be read before
- * the mark position becomes invalid.
- * @see java.io.FilterInputStream#in
- * @see java.io.FilterInputStream#reset()
- */
- public synchronized void mark(int readlimit) {
- in.mark(readlimit);
- }
-
- /**
- * Repositions this stream to the position at the time the
- * mark
method was last called on this input stream.
- *
- * This method
- * simply performs in.reset()
.
- *
- * Stream marks are intended to be used in
- * situations where you need to read ahead a little to see what's in
- * the stream. Often this is most easily done by invoking some
- * general parser. If the stream is of the type handled by the
- * parse, it just chugs along happily. If the stream is not of
- * that type, the parser should toss an exception when it fails.
- * If this happens within readlimit bytes, it allows the outer
- * code to reset the stream and try another parser.
- *
- * @exception IOException if the stream has not been marked or if the
- * mark has been invalidated.
- * @see java.io.FilterInputStream#in
- * @see java.io.FilterInputStream#mark(int)
- */
- public synchronized void reset() throws IOException {
- in.reset();
- }
-
- /**
- * Tests if this input stream supports the mark
- * and reset
methods.
- * This method
- * simply performs in.markSupported()
.
- *
- * @return true
if this stream type supports the
- * mark
and reset
method;
- * false
otherwise.
- * @see java.io.FilterInputStream#in
- * @see java.io.InputStream#mark(int)
- * @see java.io.InputStream#reset()
- */
- public boolean markSupported() {
- return in.markSupported();
- }
-}