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1   /*
2    * reserved comment block
3    * DO NOT REMOVE OR ALTER!
4    */
5   /*
6    * Copyright 2001, 2002,2004 The Apache Software Foundation.
7    *
8    * Licensed under the Apache License, Version 2.0 (the "License");
9    * you may not use this file except in compliance with the License.
10   * You may obtain a copy of the License at
11   *
12   *      http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing, software
15   * distributed under the License is distributed on an "AS IS" BASIS,
16   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17   * See the License for the specific language governing permissions and
18   * limitations under the License.
19   */
20  
21  package com.sun.org.apache.xerces.internal.impl.dv.xs;
22  
23  import com.sun.org.apache.xerces.internal.impl.dv.InvalidDatatypeValueException;
24  import com.sun.org.apache.xerces.internal.impl.dv.ValidationContext;
25  import com.sun.org.apache.xerces.internal.impl.dv.util.Base64;
26  import com.sun.org.apache.xerces.internal.impl.dv.util.ByteListImpl;
27  
28  /**
29   * Represent the schema type "base64Binary"
30   *
31   * @xerces.internal
32   *
33   * @author Neeraj Bajaj, Sun Microsystems, inc.
34   * @author Sandy Gao, IBM
35   *
36   * @version $Id: Base64BinaryDV.java,v 1.7 2010-11-01 04:39:46 joehw Exp $
37   */
38  public class Base64BinaryDV extends TypeValidator {
39  
40      public short getAllowedFacets(){
41          return (XSSimpleTypeDecl.FACET_LENGTH | XSSimpleTypeDecl.FACET_MINLENGTH | XSSimpleTypeDecl.FACET_MAXLENGTH | XSSimpleTypeDecl.FACET_PATTERN | XSSimpleTypeDecl.FACET_ENUMERATION | XSSimpleTypeDecl.FACET_WHITESPACE );
42      }
43  
44      public Object getActualValue(String content, ValidationContext context) throws InvalidDatatypeValueException {
45          byte[] decoded = Base64.decode(content);
46          if (decoded == null)
47              throw new InvalidDatatypeValueException("cvc-datatype-valid.1.2.1", new Object[]{content, "base64Binary"});
48  
49          return new XBase64(decoded);
50      }
51  
52      // length of a binary type is the number of bytes
53      public int getDataLength(Object value) {
54          return ((XBase64)value).getLength();
55      }
56  
57      /**
58       * represent base64 data
59       */
60      private static final class XBase64 extends ByteListImpl {
61  
62          public XBase64(byte[] data) {
63              super(data);
64          }
65          public synchronized String toString() {
66              if (canonical == null) {
67                  canonical = Base64.encode(data);
68              }
69              return canonical;
70          }
71  
72          public boolean equals(Object obj) {
73              if (!(obj instanceof XBase64))
74                  return false;
75              byte[] odata = ((XBase64)obj).data;
76              int len = data.length;
77              if (len != odata.length)
78                  return false;
79              for (int i = 0; i < len; i++) {
80                  if (data[i] != odata[i])
81                      return false;
82              }
83              return true;
84          }
85  
86          public int hashCode() {
87              int hash = 0;
88              for (int i = 0; i < data.length; ++i) {
89                  hash = hash * 37 + (((int) data[i]) & 0xff);
90              }
91              return hash;
92          }
93      }
94  } // class Base64BinaryDV