001package org.hl7.fhir.dstu3.formats;
002
003/*-
004 * #%L
005 * org.hl7.fhir.dstu3
006 * %%
007 * Copyright (C) 2014 - 2019 Health Level 7
008 * %%
009 * Licensed under the Apache License, Version 2.0 (the "License");
010 * you may not use this file except in compliance with the License.
011 * You may obtain a copy of the License at
012 * 
013 *      http://www.apache.org/licenses/LICENSE-2.0
014 * 
015 * Unless required by applicable law or agreed to in writing, software
016 * distributed under the License is distributed on an "AS IS" BASIS,
017 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
018 * See the License for the specific language governing permissions and
019 * limitations under the License.
020 * #L%
021 */
022
023
024import java.io.IOException;
025import java.io.InputStream;
026import java.io.OutputStream;
027
028import org.hl7.fhir.dstu3.model.CodeType;
029import org.hl7.fhir.dstu3.model.CodeableConcept;
030import org.hl7.fhir.dstu3.model.Coding;
031import org.hl7.fhir.dstu3.model.Enumeration;
032import org.hl7.fhir.dstu3.model.Resource;
033import org.hl7.fhir.dstu3.model.Type;
034import org.hl7.fhir.dstu3.utils.formats.Turtle;
035import org.hl7.fhir.dstu3.utils.formats.Turtle.Complex;
036import org.hl7.fhir.dstu3.utils.formats.Turtle.Section;
037import org.hl7.fhir.dstu3.utils.formats.Turtle.Subject;
038import org.hl7.fhir.exceptions.FHIRFormatError;
039import org.hl7.fhir.utilities.xhtml.XhtmlNode;
040
041public abstract class RdfParserBase extends ParserBase implements IParser  {
042
043        protected abstract void composeResource(Complex complex, Resource resource) throws IOException;
044
045        @Override
046        public ParserType getType() {
047                return ParserType.RDF_TURTLE;
048        }
049
050        @Override
051        public Resource parse(InputStream input) throws IOException, FHIRFormatError {
052                throw new Error("Parsing not implemented yet");
053        }
054
055        @Override
056        public Type parseType(InputStream input, String knownType) throws IOException, FHIRFormatError {
057                throw new Error("Parsing not implemented yet");
058        }
059
060        private String url;
061
062        @Override
063        public void compose(OutputStream stream, Resource resource) throws IOException {
064          Turtle ttl = new Turtle();
065                //      ttl.setFormat(FFormat);
066                ttl.prefix("fhir", "http://hl7.org/fhir/");
067                ttl.prefix("rdfs", "http://www.w3.org/2000/01/rdf-schema#");
068                Section section = ttl.section("resource");
069                Subject subject;
070                if (url != null) 
071                        subject = section.triple("<"+url+">", "a", "fhir:"+resource.getResourceType().toString());
072                else
073                        subject = section.triple("[]", "a", "fhir:"+resource.getResourceType().toString());
074
075                composeResource(subject, resource);
076                try {
077                        ttl.commit(stream, false);
078                } catch (Exception e) {
079                        throw new IOException(e); 
080                }
081        }
082
083        @Override
084        public void compose(OutputStream stream, Type type, String rootName) throws IOException {
085                throw new Error("Not supported in RDF");  
086        }
087
088        protected String ttlLiteral(String value) {
089                return "\"" +Turtle.escape(value, true) + "\"";
090        }
091
092        protected void composeXhtml(Complex t, String string, String string2, XhtmlNode div, int i) {
093        }
094
095        protected void decorateCode(Complex t, Enumeration<? extends Enum> value) {
096        }
097
098        protected void decorateCode(Complex t, CodeType value) {
099        }
100
101        protected void decorateCoding(Complex t, Coding element) {
102                if (!element.hasSystem())
103                        return;
104                if ("http://snomed.info/sct".equals(element.getSystem())) {
105                        t.prefix("sct", "http://snomed.info/sct/");
106                        t.predicate("a", "sct:"+element.getCode());
107                } else if ("http://snomed.info/sct".equals(element.getSystem())) {
108                        t.prefix("loinc", "http://loinc.org/rdf#");
109                        t.predicate("a", "loinc:"+element.getCode());
110                }  
111        }
112
113        protected void decorateCodeableConcept(Complex t, CodeableConcept element) {
114                for (Coding c : element.getCoding())
115                        decorateCoding(t, c);
116        }
117
118
119}