001package org.hl7.fhir.dstu2016may.metamodel;
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 java.io.InputStream;
035import java.io.OutputStream;
036
037import org.apache.commons.lang3.NotImplementedException;
038import org.hl7.fhir.dstu2016may.formats.IParser.OutputStyle;
039import org.hl7.fhir.dstu2016may.formats.RdfGenerator;
040import org.hl7.fhir.dstu2016may.formats.RdfGenerator.Complex;
041import org.hl7.fhir.dstu2016may.formats.RdfGenerator.Section;
042import org.hl7.fhir.dstu2016may.formats.RdfGenerator.Subject;
043import org.hl7.fhir.dstu2016may.utils.IWorkerContext;
044import org.hl7.fhir.utilities.Utilities;
045
046public class TurtleParser extends ParserBase {
047
048  private String base;
049  
050  public TurtleParser(IWorkerContext context) {
051    super(context);
052  }
053  @Override
054  public Element parse(InputStream stream) throws Exception {
055    throw new NotImplementedException("not done yet");
056  }
057  @Override
058  public void compose(Element e, OutputStream stream, OutputStyle style, String base) throws Exception {
059    this.base = base;
060    
061                RdfGenerator ttl = new RdfGenerator(stream);
062                //      ttl.setFormat(FFormat);
063                ttl.prefix("fhir", "http://hl7.org/fhir/");
064                ttl.prefix("rdfs", "http://www.w3.org/2000/01/rdf-schema#");
065                ttl.prefix("owl", "http://www.w3.org/2002/07/owl#");
066                ttl.prefix("xs", "http://www.w3.org/2001/XMLSchema#");
067                
068                Section section = ttl.section("resource");
069                Subject subject;
070                String id = e.getChildValue("id");
071                if (base != null && id != null) 
072                        subject = section.triple("<"+base+"/"+e.getType()+"/"+id+">", "a", "fhir:"+e.getType());
073                else
074                  subject = section.triple("_", "a", "fhir:"+e.getType());
075                subject.predicate("fhir:nodeRole", "fhir:treeRoot");
076
077                for (Element child : e.getChildren()) {
078                        composeElement(subject, child);
079                }
080                ttl.commit(false);
081  }
082  
083  protected void decorateReference(Complex t, Element coding) {
084    String ref = coding.getChildValue("reference");
085    if (ref != null && (ref.startsWith("http://") || ref.startsWith("https://")))
086      t.predicate("fhir:reference", "<"+ref+">");
087    else if (base != null && ref != null && ref.contains("/")) {
088      t.predicate("fhir:reference", "<"+Utilities.appendForwardSlash(base)+ref+">");
089    }
090  }
091  
092        protected void decorateCoding(Complex t, Element coding) {
093                String system = coding.getChildValue("system");
094                String code = coding.getChildValue("code");
095                
096                if (system == null)
097                        return;
098                if ("http://snomed.info/sct".equals(system)) {
099                        t.prefix("sct", "http://snomed.info/sct/");
100                        t.predicate("a", "sct:"+code);
101                } else if ("http://loinc.org".equals(system)) {
102                        t.prefix("loinc", "http://loinc.org/rdf#");
103                        t.predicate("a", "loinc:"+code);
104                }  
105        }
106
107        private void decorateCodeableConcept(Complex t, Element element) {
108          for (Element c : element.getChildren("coding")) {
109                decorateCoding(t, c);
110          }
111        }
112        
113        private void composeElement(Complex ctxt, Element element) {
114                if ("xhtml".equals(element.getType())) // need to decide what to do with this
115                        return;
116                String en = element.getProperty().getDefinition().getBase().getPath();
117    if (en == null) 
118      en = element.getProperty().getDefinition().getPath();
119                boolean doType = false;
120                        if (en.endsWith("[x]")) {
121                                en = en.substring(0, en.length()-3);
122                                doType = true;                          
123                        }
124           if (doType || element.getProperty().getDefinition().getType().size() > 1)
125             en = en + Utilities.capitalize(element.getType());
126
127          Complex t = ctxt.predicate("fhir:"+en);
128          if (element.hasValue())
129                t.predicate("fhir:value", ttlLiteral(element.getValue(), element.getType()));
130          if (element.hasIndex())
131                t.predicate("fhir:index", Integer.toString(element.getIndex()));
132
133          if ("Coding".equals(element.getType()))
134                decorateCoding(t, element);
135          if ("CodeableConcept".equals(element.getType()))
136                decorateCodeableConcept(t, element);
137    if ("Reference".equals(element.getType()))
138      decorateReference(t, element);
139                        
140                for (Element child : element.getChildren()) {
141                        composeElement(t, child);
142                }
143        }
144        
145        protected String ttlLiteral(String value, String type) {
146          String xst = "";
147          if (type.equals("boolean"))
148            xst = "^^xs:boolean";
149          else if (type.equals("integer") || type.equals("unsignedInt") || type.equals("positiveInt"))
150      xst = "^^xs:int";
151    else if (type.equals("decimal"))
152      xst = "^^xs:decimal";
153    else if (type.equals("base64Binary"))
154      xst = "^^xs:base64Binary";
155    else if (type.equals("instant"))
156      xst = "^^xs:dateTime";
157    else if (type.equals("time"))
158      xst = "^^xs:time";
159    else if (type.equals("date") || type.equals("dateTime") ) {
160      String v = value;
161      if (v.length() > 10) {
162        int i = value.substring(10).indexOf("-");
163        if (i == -1)
164          i = value.substring(10).indexOf("+");
165        v = i == -1 ? value : value.substring(0,  10+i);
166      }
167      if (v.length() > 10)
168        xst = "^^xs:dateTime";
169      else if (v.length() == 10)
170        xst = "^^xs:date";
171      else if (v.length() == 7)
172        xst = "^^xs:gYearMonth";
173      else if (v.length() == 4)
174        xst = "^^xs:gYear";
175    }
176          
177                return "\"" +RdfGenerator.escape(value, true) + "\""+xst;
178        }
179
180}