001package org.hl7.fhir.dstu2.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;
036import ca.uhn.fhir.model.api.annotation.DatatypeDef;
037
038/**
039 * Primitive type "base64Binary" in FHIR: a sequence of bytes represented in base64
040 */
041@DatatypeDef(name="base64Binary")
042public class Base64BinaryType extends PrimitiveType<byte[]> {
043
044        private static final long serialVersionUID = 3L;
045
046        /**
047         * Constructor
048         */
049        public Base64BinaryType() {
050                super();
051        }
052
053        public Base64BinaryType(byte[] theBytes) {
054                super();
055                setValue(theBytes);
056        }
057
058        public Base64BinaryType(String theValue) {
059                super();
060    // Null values still result in non-null instance being created
061    if (theValue != null) checkValidBase64(theValue);
062                setValueAsString(theValue);
063        }
064
065  protected byte[] parse(String theValue) {
066    if (theValue != null) {
067      return Base64.decodeBase64(theValue.getBytes(ca.uhn.fhir.rest.api.Constants.CHARSET_UTF8));
068    } else {
069      return null;
070    }
071  }
072
073  protected String encode(byte[] theValue) {
074    if (theValue == null) {
075      return null;
076    }
077    return new String(Base64.encodeBase64(theValue), ca.uhn.fhir.rest.api.Constants.CHARSET_UTF8);
078  }
079
080        @Override
081        public Base64BinaryType copy() {
082                return new Base64BinaryType(getValue());
083        }
084
085        public String fhirType() {
086                return "base64Binary";
087        }
088
089  /**
090   * Checks if the passed in String is a valid {@link Base64} encoded String. Will throw a {@link DataFormatException} if not
091   * formatted correctly.
092   *
093   * @param toCheck {@link String} to check if valid {@link Base64}
094   * @throws DataFormatException
095   */
096  public void checkValidBase64(String toCheck) throws DataFormatException {
097    if (!Base64.isBase64(toCheck.getBytes())) {
098      throw new DataFormatException("");
099    }
100  }
101}