| /* |
| * 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. |
| */ |
| |
| package com.sun.xml.internal.ws.util; |
| |
| import java.io.BufferedInputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| /** |
| * @author Jitendra Kotamraju |
| */ |
| public class StreamUtils { |
| |
| /* |
| * Finds if the stream has some content or not |
| * |
| * @return null if there is no data |
| * else stream to be used |
| */ |
| public static InputStream hasSomeData(InputStream in) { |
| if (in != null) { |
| try { |
| if (in.available() < 1) { |
| if (!in.markSupported()) { |
| in = new BufferedInputStream(in); |
| } |
| in.mark(1); |
| if (in.read() != -1) { |
| in.reset(); |
| } else { |
| in = null; // No data |
| } |
| } |
| } catch(IOException ioe) { |
| in = null; |
| } |
| } |
| return in; |
| } |
| |
| } |