001package org.hl7.fhir.convertors.loaders.loaderR5;
002
003import java.io.IOException;
004import java.io.InputStream;
005import java.util.ArrayList;
006import java.util.List;
007import java.util.UUID;
008
009/*
010  Copyright (c) 2011+, HL7, Inc.
011  All rights reserved.
012  
013  Redistribution and use in source and binary forms, with or without modification, 
014  are permitted provided that the following conditions are met:
015    
016   * Redistributions of source code must retain the above copyright notice, this 
017     list of conditions and the following disclaimer.
018   * Redistributions in binary form must reproduce the above copyright notice, 
019     this list of conditions and the following disclaimer in the documentation 
020     and/or other materials provided with the distribution.
021   * Neither the name of HL7 nor the names of its contributors may be used to 
022     endorse or promote products derived from this software without specific 
023     prior written permission.
024  
025  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
026  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
027  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
028  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
029  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
030  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
031  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
032  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
033  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
034  POSSIBILITY OF SUCH DAMAGE.
035  
036 */
037
038
039import org.hl7.fhir.convertors.advisors.impl.BaseAdvisor_40_50;
040import org.hl7.fhir.convertors.factory.VersionConvertorFactory_40_50;
041import org.hl7.fhir.exceptions.FHIRException;
042import org.hl7.fhir.r4.formats.JsonParser;
043import org.hl7.fhir.r4.formats.XmlParser;
044import org.hl7.fhir.r4.model.Resource;
045import org.hl7.fhir.r5.conformance.StructureDefinitionHacker;
046import org.hl7.fhir.r5.context.IWorkerContext.IContextResourceLoader;
047import org.hl7.fhir.r5.model.Bundle;
048import org.hl7.fhir.r5.model.Bundle.BundleEntryComponent;
049import org.hl7.fhir.r5.model.Bundle.BundleType;
050import org.hl7.fhir.r5.model.CanonicalResource;
051import org.hl7.fhir.r5.model.CodeSystem;
052import org.hl7.fhir.r5.model.StructureDefinition;
053import org.hl7.fhir.r5.model.StructureDefinition.StructureDefinitionKind;
054import org.hl7.fhir.utilities.VersionUtilities;
055
056public class R4ToR5Loader extends BaseLoaderR5 implements IContextResourceLoader {
057
058  private final BaseAdvisor_40_50 advisor = new BaseAdvisor_40_50();
059  private String version;
060
061  public R4ToR5Loader(List<String> types, ILoaderKnowledgeProviderR5 lkp, String version) { // might be 4B
062    super(types, lkp);
063    this.version = version;
064  }
065
066  @Override
067  public Bundle loadBundle(InputStream stream, boolean isJson) throws FHIRException, IOException {
068    Resource r4 = null;
069    if (isJson)
070      r4 = new JsonParser().parse(stream);
071    else
072      r4 = new XmlParser().parse(stream);
073    org.hl7.fhir.r5.model.Resource r5 = VersionConvertorFactory_40_50.convertResource(r4, advisor);
074
075    Bundle b;
076    if (r5 instanceof Bundle)
077      b = (Bundle) r5;
078    else {
079      b = new Bundle();
080      b.setId(UUID.randomUUID().toString().toLowerCase());
081      b.setType(BundleType.COLLECTION);
082      b.addEntry().setResource(r5).setFullUrl(r5 instanceof CanonicalResource ? ((CanonicalResource) r5).getUrl() : null);
083    }
084    for (CodeSystem cs : advisor.getCslist()) {
085      BundleEntryComponent be = b.addEntry();
086      be.setFullUrl(cs.getUrl());
087      be.setResource(cs);
088    }
089    if (killPrimitives) {
090      List<BundleEntryComponent> remove = new ArrayList<BundleEntryComponent>();
091      for (BundleEntryComponent be : b.getEntry()) {
092        if (be.hasResource() && be.getResource() instanceof StructureDefinition) {
093          StructureDefinition sd = (StructureDefinition) be.getResource();
094          if (sd.getKind() == StructureDefinitionKind.PRIMITIVETYPE)
095            remove.add(be);
096        }
097      }
098      b.getEntry().removeAll(remove);
099    }
100    if (patchUrls) {
101      for (BundleEntryComponent be : b.getEntry()) {
102        if (be.hasResource()) {
103          doPatchUrls(be.getResource());
104        }
105      }
106    }
107    return b;
108  }
109
110  @Override
111  public org.hl7.fhir.r5.model.Resource loadResource(InputStream stream, boolean isJson) throws FHIRException, IOException {
112    Resource r4 = null;
113    if (isJson)
114      r4 = new JsonParser().parse(stream);
115    else
116      r4 = new XmlParser().parse(stream);
117    org.hl7.fhir.r5.model.Resource r5 = VersionConvertorFactory_40_50.convertResource(r4);
118    setPath(r5);
119
120    if (!advisor.getCslist().isEmpty()) {
121      throw new FHIRException("Error: Cannot have included code systems");
122    }
123    if (killPrimitives) {
124      throw new FHIRException("Cannot kill primitives when using deferred loading");
125    }
126    if (r5 instanceof StructureDefinition && VersionUtilities.isR4Ver(version)) {
127      r5 = new StructureDefinitionHacker(version).fixSD((StructureDefinition) r5);
128    }
129    if (patchUrls) {
130      doPatchUrls(r5);
131    }
132    return r5;
133  }
134
135  
136  @Override
137  public List<CodeSystem> getCodeSystems() {
138    return new ArrayList<>();
139  }
140
141  @Override
142  protected String versionString() {
143    return "4.0";
144  }
145
146
147}