content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License.  You may obtain a copy of the License at
   * 
   *      http://www.apache.org/licenses/LICENSE-2.0
   * 
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package mf.org.apache.xerces.impl.dv.xs;
  
  import mf.org.apache.xerces.impl.dv.InvalidDatatypeValueException;
  import mf.org.apache.xerces.impl.dv.ValidationContext;
  import mf.org.apache.xerces.impl.dv.util.Base64;
  import mf.org.apache.xerces.impl.dv.util.ByteListImpl;
  import mf.org.apache.xerces.xs.XSSimpleTypeDefinition;
  
  /**
   * Represent the schema type "base64Binary"
   *
   * @author Neeraj Bajaj, Sun Microsystems, inc.
   * @author Sandy Gao, IBM
   * @version $Id: Base64BinaryDV.java 446745 2006-09-15 21:43:58Z mrglavas $
   * @xerces.internal
   */
  public class Base64BinaryDV extends TypeValidator {
  
      @Override
      public short getAllowedFacets() {
          return (XSSimpleTypeDefinition.FACET_LENGTH | XSSimpleTypeDefinition.FACET_MINLENGTH | XSSimpleTypeDefinition.FACET_MAXLENGTH | XSSimpleTypeDefinition.FACET_PATTERN | XSSimpleTypeDefinition.FACET_ENUMERATION | XSSimpleTypeDefinition.FACET_WHITESPACE);
      }
  
      @Override
      public Object getActualValue(String content, ValidationContext context) throws InvalidDatatypeValueException {
          byte[] decoded = Base64.decode(content);
          if (decoded == null)
              throw new InvalidDatatypeValueException("cvc-datatype-valid.1.2.1", new Object[]{content, "base64Binary"});
  
          return new XBase64(decoded);
      }
  
      // length of a binary type is the number of bytes
      @Override
      public int getDataLength(Object value) {
          return ((XBase64) value).getLength();
      }
  
      /**
       * represent base64 data
       */
      private static final class XBase64 extends ByteListImpl {
  
          public XBase64(byte[] data) {
              super(data);
          }
  
          @Override
          public synchronized String toString() {
              if (canonical == null) {
                  canonical = Base64.encode(data);
              }
              return canonical;
          }
  
          @Override
          public boolean equals(Object obj) {
              if (!(obj instanceof XBase64))
                  return false;
              byte[] odata = ((XBase64) obj).data;
              int len = data.length;
              if (len != odata.length)
                  return false;
              for (int i = 0; i < len; i++) {
                  if (data[i] != odata[i])
                      return false;
              }
              return true;
          }
  
          @Override
          public int hashCode() {
              int hash = 0;
              for (int i = 0; i < data.length; ++i) {
                  hash = hash * 37 + ((data[i]) & 0xff);
              }
              return hash;
          }
      }
  } // class Base64BinaryDV
  