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_10_50;
040import org.hl7.fhir.convertors.factory.VersionConvertorFactory_10_50;
041import org.hl7.fhir.dstu2.formats.JsonParser;
042import org.hl7.fhir.dstu2.formats.XmlParser;
043import org.hl7.fhir.dstu2.model.Resource;
044import org.hl7.fhir.exceptions.FHIRException;
045import org.hl7.fhir.r5.context.IWorkerContext.IContextResourceLoader;
046import org.hl7.fhir.r5.model.Bundle;
047import org.hl7.fhir.r5.model.Bundle.BundleEntryComponent;
048import org.hl7.fhir.r5.model.Bundle.BundleType;
049import org.hl7.fhir.r5.model.CanonicalResource;
050import org.hl7.fhir.r5.model.CodeSystem;
051import org.hl7.fhir.r5.model.StructureDefinition;
052import org.hl7.fhir.r5.model.StructureDefinition.StructureDefinitionKind;
053
054public class R2ToR5Loader extends BaseLoaderR5 implements IContextResourceLoader {
055
056  private final BaseAdvisor_10_50 advisor = new BaseAdvisor_10_50();
057
058  public R2ToR5Loader(List<String> types, ILoaderKnowledgeProviderR5 lkp) {
059    super(types, lkp);
060  }
061
062  @Override
063  public Bundle loadBundle(InputStream stream, boolean isJson) throws FHIRException, IOException {
064    Resource r2 = null;
065    if (isJson)
066      r2 = new JsonParser().parse(stream);
067    else
068      r2 = new XmlParser().parse(stream);
069    org.hl7.fhir.r5.model.Resource r5 = VersionConvertorFactory_10_50.convertResource(r2, advisor);
070    Bundle b;
071    if (r5 instanceof Bundle) {
072      b = (Bundle) r5;
073    } else {
074      b = new Bundle();
075      b.setId(UUID.randomUUID().toString().toLowerCase());
076      b.setType(BundleType.COLLECTION);
077      b.addEntry().setResource(r5).setFullUrl(r5 instanceof CanonicalResource ? ((CanonicalResource) r5).getUrl() : null);
078    }
079    // Add any code systems defined as part of processing value sets to the end of the converted Bundle
080    for (CodeSystem cs : advisor.getCslist()) {
081      BundleEntryComponent be = b.addEntry();
082      be.setFullUrl(cs.getUrl());
083      be.setResource(cs);
084    }
085
086    advisor.getCslist().clear();
087
088    if (killPrimitives) {
089      List<BundleEntryComponent> remove = new ArrayList<BundleEntryComponent>();
090      for (BundleEntryComponent be : b.getEntry()) {
091        if (be.hasResource() && be.getResource() instanceof StructureDefinition) {
092          StructureDefinition sd = (StructureDefinition) be.getResource();
093          if (sd.getKind() == StructureDefinitionKind.PRIMITIVETYPE)
094            remove.add(be);
095        }
096      }
097      b.getEntry().removeAll(remove);
098    }
099    if (patchUrls) {
100      for (BundleEntryComponent be : b.getEntry()) {
101        if (be.hasResource()) {
102          doPatchUrls(be.getResource());
103        }
104      }
105    }
106    return b;
107  }
108
109
110  @Override
111  public org.hl7.fhir.r5.model.Resource loadResource(InputStream stream, boolean isJson) throws FHIRException, IOException {
112    Resource r2 = null;
113    if (isJson)
114      r2 = new JsonParser().parse(stream);
115    else
116      r2 = new XmlParser().parse(stream);
117    org.hl7.fhir.r5.model.Resource r5 = VersionConvertorFactory_10_50.convertResource(r2, advisor);
118    setPath(r5);
119    if (killPrimitives) {
120      throw new FHIRException("Cannot kill primitives when using deferred loading");
121    }
122    if (patchUrls) {
123      doPatchUrls(r5);
124    }
125    return r5;
126  }
127
128  @Override
129  public List<CodeSystem> getCodeSystems() {
130    List<CodeSystem> list = new ArrayList<>();
131    if (!advisor.getCslist().isEmpty()) {
132      list.addAll(advisor.getCslist());
133      advisor.getCslist().clear();
134    }
135    return list;
136  }
137
138  @Override
139  protected String versionString() {
140    return "1.0";
141  }
142
143}