65 lines
2.1 KiB
Java
65 lines
2.1 KiB
Java
/*
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* Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package com.sun.xml.internal.ws.util;
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import java.io.BufferedInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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/**
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* @author Jitendra Kotamraju
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*/
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public class StreamUtils {
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/*
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* Finds if the stream has some content or not
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*
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* @return null if there is no data
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* else stream to be used
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*/
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public static InputStream hasSomeData(InputStream in) {
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if (in != null) {
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try {
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if (in.available() < 1) {
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if (!in.markSupported()) {
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in = new BufferedInputStream(in);
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}
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in.mark(1);
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if (in.read() != -1) {
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in.reset();
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} else {
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in = null; // No data
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}
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}
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} catch(IOException ioe) {
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in = null;
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}
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}
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return in;
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}
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}
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