001package org.hl7.fhir.r4.formats;
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
032import java.io.IOException;
033import java.io.InputStream;
034import java.io.OutputStream;
035
036import org.hl7.fhir.exceptions.FHIRFormatError;
037import org.hl7.fhir.r4.model.CodeType;
038import org.hl7.fhir.r4.model.CodeableConcept;
039import org.hl7.fhir.r4.model.Coding;
040import org.hl7.fhir.r4.model.Enumeration;
041import org.hl7.fhir.r4.model.Resource;
042import org.hl7.fhir.r4.model.Type;
043import org.hl7.fhir.r4.utils.formats.Turtle;
044import org.hl7.fhir.r4.utils.formats.Turtle.Complex;
045import org.hl7.fhir.r4.utils.formats.Turtle.Section;
046import org.hl7.fhir.r4.utils.formats.Turtle.Subject;
047import org.hl7.fhir.utilities.xhtml.XhtmlNode;
048
049public abstract class RdfParserBase extends ParserBase implements IParser {
050
051  protected abstract void composeResource(Complex complex, Resource resource) throws IOException;
052
053  @Override
054  public ParserType getType() {
055    return ParserType.RDF_TURTLE;
056  }
057
058  @Override
059  public Resource parse(InputStream input) throws IOException, FHIRFormatError {
060    throw new Error("Parsing not implemented yet");
061  }
062
063  @Override
064  public Type parseType(InputStream input, String knownType) throws IOException, FHIRFormatError {
065    throw new Error("Parsing not implemented yet");
066  }
067
068  @Override
069  public Type parseAnyType(InputStream input, String knownType) throws IOException, FHIRFormatError {
070    throw new Error("Parsing not implemented yet");
071  }
072
073  private String url;
074
075  @Override
076  public void compose(OutputStream stream, Resource resource) throws IOException {
077    Turtle ttl = new Turtle();
078    // ttl.setFormat(FFormat);
079    ttl.prefix("fhir", "http://hl7.org/fhir/");
080    ttl.prefix("rdfs", "http://www.w3.org/2000/01/rdf-schema#");
081    Section section = ttl.section("resource");
082    Subject subject;
083    if (url != null)
084      subject = section.triple("<" + url + ">", "a", "fhir:" + resource.getResourceType().toString());
085    else
086      subject = section.triple("[]", "a", "fhir:" + resource.getResourceType().toString());
087
088    composeResource(subject, resource);
089    try {
090      ttl.commit(stream, false);
091    } catch (Exception e) {
092      throw new IOException(e);
093    }
094  }
095
096  @Override
097  public void compose(OutputStream stream, Type type, String rootName) throws IOException {
098    throw new Error("Not supported in RDF");
099  }
100
101  protected String ttlLiteral(String value) {
102    return "\"" + Turtle.escape(value, true) + "\"";
103  }
104
105  protected void composeXhtml(Complex t, String string, String string2, XhtmlNode div, int i) {
106  }
107
108  protected void decorateCode(Complex t, Enumeration<? extends Enum> value) {
109  }
110
111  protected void decorateCode(Complex t, CodeType value) {
112  }
113
114  protected void decorateCoding(Complex t, Coding element) {
115    if (!element.hasSystem())
116      return;
117    if ("http://snomed.info/sct".equals(element.getSystem())) {
118      t.prefix("sct", "http://snomed.info/sct/");
119      t.predicate("a", "sct:" + element.getCode());
120    } else if ("http://snomed.info/sct".equals(element.getSystem())) {
121      t.prefix("loinc", "http://loinc.org/rdf#");
122      t.predicate("a", "loinc:" + element.getCode());
123    }
124  }
125
126  protected void decorateCodeableConcept(Complex t, CodeableConcept element) {
127    for (Coding c : element.getCoding())
128      decorateCoding(t, c);
129  }
130
131}