001package org.hl7.fhir.dstu3.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  public static final String NS_XSI = "http://www.w3.org/2001/XMLSchema-instance";
042 
043  protected String toString(String value) {
044    return value;
045  }
046  
047  protected String toString(int value) {
048    return java.lang.Integer.toString(value);
049  }
050  
051  protected String toString(boolean value) {
052    return java.lang.Boolean.toString(value);
053  }
054  
055  protected String toString(BigDecimal value) {
056    return value.toString();
057  }
058  
059  protected String toString(URI value) {
060    return value.toString();
061  }
062
063  public static String toString(byte[] value) {
064    byte[] encodeBase64 = Base64.encodeBase64(value);
065    return new String(encodeBase64);
066  }
067  
068        public static boolean isValidId(String tail) {
069          return tail.matches(ID_REGEX);
070  }
071
072  public static String makeId(String candidate) {
073    StringBuilder b = new StringBuilder();
074    for (char c : candidate.toCharArray())
075      if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9') || c == '.' || c == '-')
076        b.append(c);
077    return b.toString();
078  }
079  
080
081
082
083}