1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/jaxws_classes/javax/xml/bind/annotation/adapters/CollapsedStringAdapter.java Wed Apr 27 01:27:09 2016 +0800
1.3 @@ -0,0 +1,119 @@
1.4 +/*
1.5 + * Copyright (c) 2004, 2013, 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 +package javax.xml.bind.annotation.adapters;
1.30 +
1.31 +
1.32 +
1.33 +/**
1.34 + * Built-in {@link XmlAdapter} to handle <tt>xs:token</tt> and its derived types.
1.35 + *
1.36 + * <p>
1.37 + * This adapter removes leading and trailing whitespaces, then truncate any
1.38 + * sequnce of tab, CR, LF, and SP by a single whitespace character ' '.
1.39 + *
1.40 + * @author Kohsuke Kawaguchi
1.41 + * @since JAXB 2.0
1.42 + */
1.43 +public class CollapsedStringAdapter extends XmlAdapter<String,String> {
1.44 + /**
1.45 + * Removes leading and trailing whitespaces of the string
1.46 + * given as the parameter, then truncate any
1.47 + * sequnce of tab, CR, LF, and SP by a single whitespace character ' '.
1.48 + */
1.49 + public String unmarshal(String text) {
1.50 + if(text==null) return null; // be defensive
1.51 +
1.52 + int len = text.length();
1.53 +
1.54 + // most of the texts are already in the collapsed form.
1.55 + // so look for the first whitespace in the hope that we will
1.56 + // never see it.
1.57 + int s=0;
1.58 + while(s<len) {
1.59 + if(isWhiteSpace(text.charAt(s)))
1.60 + break;
1.61 + s++;
1.62 + }
1.63 + if(s==len)
1.64 + // the input happens to be already collapsed.
1.65 + return text;
1.66 +
1.67 + // we now know that the input contains spaces.
1.68 + // let's sit down and do the collapsing normally.
1.69 +
1.70 + StringBuilder result = new StringBuilder(len /*allocate enough size to avoid re-allocation*/ );
1.71 +
1.72 + if(s!=0) {
1.73 + for( int i=0; i<s; i++ )
1.74 + result.append(text.charAt(i));
1.75 + result.append(' ');
1.76 + }
1.77 +
1.78 + boolean inStripMode = true;
1.79 + for (int i = s+1; i < len; i++) {
1.80 + char ch = text.charAt(i);
1.81 + boolean b = isWhiteSpace(ch);
1.82 + if (inStripMode && b)
1.83 + continue; // skip this character
1.84 +
1.85 + inStripMode = b;
1.86 + if (inStripMode)
1.87 + result.append(' ');
1.88 + else
1.89 + result.append(ch);
1.90 + }
1.91 +
1.92 + // remove trailing whitespaces
1.93 + len = result.length();
1.94 + if (len > 0 && result.charAt(len - 1) == ' ')
1.95 + result.setLength(len - 1);
1.96 + // whitespaces are already collapsed,
1.97 + // so all we have to do is to remove the last one character
1.98 + // if it's a whitespace.
1.99 +
1.100 + return result.toString();
1.101 + }
1.102 +
1.103 + /**
1.104 + * No-op.
1.105 + *
1.106 + * Just return the same string given as the parameter.
1.107 + */
1.108 + public String marshal(String s) {
1.109 + return s;
1.110 + }
1.111 +
1.112 +
1.113 + /** returns true if the specified char is a white space character. */
1.114 + protected static boolean isWhiteSpace(char ch) {
1.115 + // most of the characters are non-control characters.
1.116 + // so check that first to quickly return false for most of the cases.
1.117 + if( ch>0x20 ) return false;
1.118 +
1.119 + // other than we have to do four comparisons.
1.120 + return ch == 0x9 || ch == 0xA || ch == 0xD || ch == 0x20;
1.121 + }
1.122 +}
