diff -r 4252bfc396fc -r d382dacfd73f emul/compact/src/main/java/java/io/BufferedOutputStream.java --- a/emul/compact/src/main/java/java/io/BufferedOutputStream.java Tue Feb 26 14:55:55 2013 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,143 +0,0 @@ -/* - * Copyright (c) 1994, 2003, 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; - -/** - * The class implements a buffered output stream. By setting up such - * an output stream, an application can write bytes to the underlying - * output stream without necessarily causing a call to the underlying - * system for each byte written. - * - * @author Arthur van Hoff - * @since JDK1.0 - */ -public -class BufferedOutputStream extends FilterOutputStream { - /** - * The internal buffer where data is stored. - */ - protected byte buf[]; - - /** - * The number of valid bytes in the buffer. This value is always - * in the range 0 through buf.length; elements - * buf[0] through buf[count-1] contain valid - * byte data. - */ - protected int count; - - /** - * Creates a new buffered output stream to write data to the - * specified underlying output stream. - * - * @param out the underlying output stream. - */ - public BufferedOutputStream(OutputStream out) { - this(out, 8192); - } - - /** - * Creates a new buffered output stream to write data to the - * specified underlying output stream with the specified buffer - * size. - * - * @param out the underlying output stream. - * @param size the buffer size. - * @exception IllegalArgumentException if size <= 0. - */ - public BufferedOutputStream(OutputStream out, int size) { - super(out); - if (size <= 0) { - throw new IllegalArgumentException("Buffer size <= 0"); - } - buf = new byte[size]; - } - - /** Flush the internal buffer */ - private void flushBuffer() throws IOException { - if (count > 0) { - out.write(buf, 0, count); - count = 0; - } - } - - /** - * Writes the specified byte to this buffered output stream. - * - * @param b the byte to be written. - * @exception IOException if an I/O error occurs. - */ - public synchronized void write(int b) throws IOException { - if (count >= buf.length) { - flushBuffer(); - } - buf[count++] = (byte)b; - } - - /** - * Writes len bytes from the specified byte array - * starting at offset off to this buffered output stream. - * - *

Ordinarily this method stores bytes from the given array into this - * stream's buffer, flushing the buffer to the underlying output stream as - * needed. If the requested length is at least as large as this stream's - * buffer, however, then this method will flush the buffer and write the - * bytes directly to the underlying output stream. Thus redundant - * BufferedOutputStreams will not copy data unnecessarily. - * - * @param b the data. - * @param off the start offset in the data. - * @param len the number of bytes to write. - * @exception IOException if an I/O error occurs. - */ - public synchronized void write(byte b[], int off, int len) throws IOException { - if (len >= buf.length) { - /* If the request length exceeds the size of the output buffer, - flush the output buffer and then write the data directly. - In this way buffered streams will cascade harmlessly. */ - flushBuffer(); - out.write(b, off, len); - return; - } - if (len > buf.length - count) { - flushBuffer(); - } - System.arraycopy(b, off, buf, count, len); - count += len; - } - - /** - * Flushes this buffered output stream. This forces any buffered - * output bytes to be written out to the underlying output stream. - * - * @exception IOException if an I/O error occurs. - * @see java.io.FilterOutputStream#out - */ - public synchronized void flush() throws IOException { - flushBuffer(); - out.flush(); - } -}