001package org.hl7.fhir.dstu2016may.model;
002
003/*
004  Copyright (c) 2011+, HL7, Inc.
005  All rights reserved.
006  
007  Redistribution and use in source and binary forms, with or without modification, 
008  are permitted provided that the following conditions are met:
009    
010   * Redistributions of source code must retain the above copyright notice, this 
011     list of conditions and the following disclaimer.
012   * Redistributions in binary form must reproduce the above copyright notice, 
013     this list of conditions and the following disclaimer in the documentation 
014     and/or other materials provided with the distribution.
015   * Neither the name of HL7 nor the names of its contributors may be used to 
016     endorse or promote products derived from this software without specific 
017     prior written permission.
018  
019  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
020  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
021  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
022  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
023  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
024  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
025  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
026  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
027  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
028  POSSIBILITY OF SUCH DAMAGE.
029  
030 */
031
032
033
034import ca.uhn.fhir.parser.DataFormatException;
035import org.apache.commons.codec.binary.Base64;
036
037import ca.uhn.fhir.model.api.annotation.DatatypeDef;
038
039/**
040 * Primitive type "base64Binary" in FHIR: a sequence of bytes represented in base64
041 */
042@DatatypeDef(name="base64Binary")
043public class Base64BinaryType extends PrimitiveType<byte[]> {
044
045        private static final long serialVersionUID = 3L;
046
047        /**
048         * Constructor
049         */
050        public Base64BinaryType() {
051                super();
052        }
053
054        public Base64BinaryType(byte[] theBytes) {
055                super();
056                setValue(theBytes);
057        }
058
059        public Base64BinaryType(String theValue) {
060                super();
061    // Null values still result in non-null instance being created
062    if (theValue != null) checkValidBase64(theValue);
063                setValueAsString(theValue);
064        }
065
066  protected byte[] parse(String theValue) {
067    if (theValue != null) {
068      return Base64.decodeBase64(theValue.getBytes(ca.uhn.fhir.rest.api.Constants.CHARSET_UTF8));
069    } else {
070      return null;
071    }
072  }
073
074  protected String encode(byte[] theValue) {
075    if (theValue == null) {
076      return null;
077    }
078    return new String(Base64.encodeBase64(theValue), ca.uhn.fhir.rest.api.Constants.CHARSET_UTF8);
079  }
080
081        @Override
082        public Base64BinaryType copy() {
083                return new Base64BinaryType(getValue());
084        }
085
086        public String fhirType() {
087                return "base64Binary";
088        }
089
090  /**
091   * Checks if the passed in String is a valid {@link Base64} encoded String. Will throw a {@link DataFormatException} if not
092   * formatted correctly.
093   *
094   * @param toCheck {@link String} to check if valid {@link Base64}
095   * @throws DataFormatException
096   */
097  public void checkValidBase64(String toCheck) throws DataFormatException {
098    if (!Base64.isBase64(toCheck.getBytes())) {
099      throw new DataFormatException("");
100    }
101  }
102}