| /* |
| * Copyright (c) 1997, 2013, 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. |
| */ |
| |
| /* |
| * @(#)SharedInputStream.java 1.2 02/03/27 |
| */ |
| |
| |
| |
| package com.sun.xml.internal.messaging.saaj.packaging.mime.internet; |
| |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| |
| // SAAJ doesn't utilize this, but I think it should. |
| /** |
| * An InputStream that is backed by data that can be shared by multiple |
| * readers may implement this interface. This allows users of such an |
| * InputStream to determine the current positionin the InputStream, and |
| * to create new InputStreams representing a subset of the data in the |
| * original InputStream. The new InputStream will access the same |
| * underlying data as the original, without copying the data. |
| * |
| * @version 1.2, 02/03/27 |
| * @author Bill Shannon |
| * @since JavaMail 1.2 |
| */ |
| |
| public interface SharedInputStream { |
| /** |
| * Return the current position in the InputStream, as an |
| * offset from the beginning of the InputStream. |
| * |
| * @return the current position |
| */ |
| public long getPosition(); |
| |
| /** |
| * Return a new InputStream representing a subset of the data |
| * from this InputStream, starting at <code>start</code> (inclusive) |
| * up to <code>end</code> (exclusive). <code>start</code> must be |
| * non-negative. If <code>end</code> is -1, the new stream ends |
| * at the same place as this stream. The returned InputStream |
| * will also implement the SharedInputStream interface. |
| * |
| * @param start the starting position |
| * @param end the ending position + 1 |
| * @return the new stream |
| */ |
| public InputStream newStream(long start, long end); |
| |
| /** |
| * Writes the specified region to another {@link OutputStream}. |
| */ |
| public void writeTo(long start,long end, OutputStream out); |
| } |