001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package javax.xml.bind.annotation.adapters; 018 019 public final class NormalizedStringAdapter extends XmlAdapter<String, String> { 020 021 public String marshal(String v) { 022 return v; 023 } 024 025 public String unmarshal(String v) { 026 if (v == null) { 027 return null; 028 } 029 int i; 030 for (i = v.length() - 1; i >= 0 && !isWhiteSpaceExceptSpace(v.charAt(i)); i--); 031 if (i < 0) { 032 return v; 033 } 034 char buf[] = v.toCharArray(); 035 buf[i--] = ' '; 036 for(; i >= 0; i--) { 037 if(isWhiteSpaceExceptSpace(buf[i])) { 038 buf[i] = ' '; 039 } 040 } 041 return new String(buf); 042 } 043 044 protected static boolean isWhiteSpaceExceptSpace(char ch) { 045 if (ch >= ' ') { 046 return false; 047 } else { 048 return ch == '\t' || ch == '\n' || ch == '\r'; 049 } 050 } 051 052 }