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1 /*
2  * The Apache Software License, Version 1.1
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4  *
5  * Copyright (c) 2001-2003 The Apache Software Foundation. All rights
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9  * modification, are permitted provided that the following conditions
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24  * Alternately, this acknowledgment may appear in the software itself,
25  * if and wherever such third-party acknowledgments normally appear.
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53  * <http://www.apache.org/>.
54  */
55 package org.jboss.axis.types;
56
57 import org.jboss.axis.utils.Messages;
58
59 /**
60  * Custom class for supporting primitive XSD data type Token.
61  * token represents tokenized strings.
62  * The base type of token is normalizedString.
63  *
64  * @author Chris Haddad <chaddad@cobia.net>
65  * @see <a HREF="http://www.w3.org/TR/xmlschema-2/#token">XML Schema 3.3.2</a>
66  */
67 public class Token extends NormalizedString
68 {
69
70    public Token()
71    {
72       super();
73    }
74
75    /**
76     * ctor for Token
77     *
78     * @throws IllegalArgumentException will be thrown if validation fails
79     */
80    public Token(String JavaDoc stValue) throws IllegalArgumentException JavaDoc
81    {
82       try
83       {
84          setValue(stValue);
85       }
86       catch (IllegalArgumentException JavaDoc e)
87       {
88          // recast normalizedString exception as token exception
89 throw new IllegalArgumentException JavaDoc(Messages.getMessage("badToken00") + "data=[" +
90                  stValue + "]");
91       }
92    }
93
94    /**
95     * validate the value against the xsd definition
96     * <p/>
97     * The value space of token is the set of strings that do not
98     * contain the line feed (#xA) nor tab (#x9) characters, that
99     * have no leading or trailing spaces (#x20) and that have no
100     * internal sequences of two or more spaces. The lexical space
101     * of token is the set of strings that do not contain the line
102     * feed (#xA) nor tab (#x9) characters, that have no leading or
103     * trailing spaces (#x20) and that have no internal sequences of two
104     * or more spaces.
105     */
106    public boolean isValid(String JavaDoc stValue)
107    {
108       int scan;
109       // check to see if we have a string to review
110 if ((stValue == null) || (stValue.length() == 0))
111          return true;
112
113       // no leading space
114 if (stValue.charAt(0) == 0x20)
115          return false;
116
117       // no trail space
118 if (stValue.charAt(stValue.length() - 1) == 0x20)
119          return false;
120
121       for (scan = 0; scan < stValue.length(); scan++)
122       {
123          char cDigit = stValue.charAt(scan);
124          switch (cDigit)
125          {
126             case 0x09:
127             case 0x0A:
128                return false;
129             case 0x20:
130                // no doublspace
131 if (scan + 1 < stValue.length())
132                   if (stValue.charAt(scan + 1) == 0x20)
133                   {
134                      return false;
135                   }
136             default:
137                break;
138          }
139       }
140       return true;
141    }
142 }
143
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