001package org.hl7.fhir.instance.formats;
002
003/*
004Copyright (c) 2011+, HL7, Inc
005All rights reserved.
006
007Redistribution and use in source and binary forms, with or without modification, 
008are 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
019THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
020ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
021WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
022IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
023INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
024NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
025PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
026WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
027ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
028POSSIBILITY OF SUCH DAMAGE.
029
030*/
031
032import java.math.BigDecimal;
033import java.net.URI;
034
035import org.apache.commons.codec.binary.Base64;
036
037public abstract class FormatUtilities {
038  public static final String ID_REGEX = "[A-Za-z0-9\\-\\.]{1,64}";
039  public static final String FHIR_NS = "http://hl7.org/fhir";
040  public static final String XHTML_NS = "http://www.w3.org/1999/xhtml";
041 
042  protected String toString(String value) {
043    return value;
044  }
045  
046  protected String toString(int value) {
047    return java.lang.Integer.toString(value);
048  }
049  
050  protected String toString(boolean value) {
051    return java.lang.Boolean.toString(value);
052  }
053  
054  protected String toString(BigDecimal value) {
055    return value.toString();
056  }
057  
058  protected String toString(URI value) {
059    return value.toString();
060  }
061
062  public static String toString(byte[] value) {
063    byte[] encodeBase64 = Base64.encodeBase64(value);
064    return new String(encodeBase64);
065  }
066  
067        public static boolean isValidId(String tail) {
068          return tail.matches(ID_REGEX);
069  }
070
071  public static String makeId(String candidate) {
072    StringBuilder b = new StringBuilder();
073    for (char c : candidate.toCharArray())
074      if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9') || c == '.' || c == '-')
075        b.append(c);
076    return b.toString();
077  }
078  
079
080
081
082}