Mercurial > jdk8-mips64-public > jaxws / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/share/jaxws_classes/com/sun/xml/internal/messaging/saaj/packaging/mime/internet/UniqueValue.java	Wed Apr 27 01:27:09 2016 +0800
     1.3 @@ -0,0 +1,71 @@
     1.4 +/*
     1.5 + * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
     1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.7 + *
     1.8 + * This code is free software; you can redistribute it and/or modify it
     1.9 + * under the terms of the GNU General Public License version 2 only, as
    1.10 + * published by the Free Software Foundation.  Oracle designates this
    1.11 + * particular file as subject to the "Classpath" exception as provided
    1.12 + * by Oracle in the LICENSE file that accompanied this code.
    1.13 + *
    1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
    1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    1.16 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    1.17 + * version 2 for more details (a copy is included in the LICENSE file that
    1.18 + * accompanied this code).
    1.19 + *
    1.20 + * You should have received a copy of the GNU General Public License version
    1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
    1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    1.23 + *
    1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    1.25 + * or visit www.oracle.com if you need additional information or have any
    1.26 + * questions.
    1.27 + */
    1.28 +
    1.29 +/*
    1.30 + * @(#)UniqueValue.java       1.6 02/03/27
    1.31 + */
    1.32 +
    1.33 +
    1.34 +
    1.35 +package com.sun.xml.internal.messaging.saaj.packaging.mime.internet;
    1.36 +
    1.37 +
    1.38 +/**
    1.39 + * This is a utility class that generates unique values. The generated
    1.40 + * String contains only US-ASCII characters and hence is safe for use
    1.41 + * in RFC822 headers. <p>
    1.42 + *
    1.43 + * This is a package private class.
    1.44 + *
    1.45 + * @author John Mani
    1.46 + * @author Max Spivak
    1.47 + * @author Bill Shannon
    1.48 + */
    1.49 +
    1.50 +class UniqueValue {
    1.51 +    /**
    1.52 +     * A global part number.  Access is not synchronized because the
    1.53 +     * value is only one part of the unique value and so doesn't need
    1.54 +     * to be accurate.
    1.55 +     */
    1.56 +    private static int part = 0;
    1.57 +
    1.58 +    /**
    1.59 +     * Get a unique value for use in a multipart boundary string.
    1.60 +     *
    1.61 +     * This implementation generates it by concatenating a global
    1.62 +     * part number, a newly created object's <code>hashCode()</code>,
    1.63 +     * and the current time (in milliseconds).
    1.64 +     */
    1.65 +    public static String getUniqueBoundaryValue() {
    1.66 +        StringBuffer s = new StringBuffer();
    1.67 +
    1.68 +        // Unique string is ----=_Part_<part>_<hashcode>.<currentTime>
    1.69 +        s.append("----=_Part_").append(part++).append("_").
    1.70 +          append(s.hashCode()).append('.').
    1.71 +          append(System.currentTimeMillis());
    1.72 +        return s.toString();
    1.73 +    }
    1.74 +}