| /* |
| * Copyright 2005-2006 Sun Microsystems, Inc. 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. Sun designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| */ |
| |
| package javax.xml.bind.annotation.adapters; |
| |
| |
| |
| /** |
| * {@link XmlAdapter} to handle <tt>xs:normalizedString</tt>. |
| * |
| * <p> |
| * This adapter removes leading and trailing whitespaces, then replace |
| * any tab, CR, and LF by a whitespace character ' '. |
| * |
| * @author Kohsuke Kawaguchi |
| * @since JAXB 2.0 |
| */ |
| public final class NormalizedStringAdapter extends XmlAdapter<String,String> { |
| /** |
| * Replace any tab, CR, and LF by a whitespace character ' ', |
| * as specified in <a href="http://www.w3.org/TR/xmlschema-2/#rf-whiteSpace">the whitespace facet 'replace'</a> |
| */ |
| public String unmarshal(String text) { |
| if(text==null) return null; // be defensive |
| |
| int i=text.length()-1; |
| |
| // look for the first whitespace char. |
| while( i>=0 && !isWhiteSpaceExceptSpace(text.charAt(i)) ) |
| i--; |
| |
| if( i<0 ) |
| // no such whitespace. replace(text)==text. |
| return text; |
| |
| // we now know that we need to modify the text. |
| // allocate a char array to do it. |
| char[] buf = text.toCharArray(); |
| |
| buf[i--] = ' '; |
| for( ; i>=0; i-- ) |
| if( isWhiteSpaceExceptSpace(buf[i])) |
| buf[i] = ' '; |
| |
| return new String(buf); |
| } |
| |
| /** |
| * No-op. |
| * |
| * Just return the same string given as the parameter. |
| */ |
| public String marshal(String s) { |
| return s; |
| } |
| |
| |
| /** |
| * Returns true if the specified char is a white space character |
| * but not 0x20. |
| */ |
| protected static boolean isWhiteSpaceExceptSpace(char ch) { |
| // most of the characters are non-control characters. |
| // so check that first to quickly return false for most of the cases. |
| if( ch>=0x20 ) return false; |
| |
| // other than we have to do four comparisons. |
| return ch == 0x9 || ch == 0xA || ch == 0xD; |
| } |
| } |