001package org.hl7.fhir.convertors.loaders.loaderR5;
002
003import java.io.FileInputStream;
004import java.io.IOException;
005import java.io.InputStream;
006import java.util.ArrayList;
007import java.util.HashSet;
008import java.util.List;
009import java.util.Set;
010import java.util.UUID;
011
012/*
013  Copyright (c) 2011+, HL7, Inc.
014  All rights reserved.
015  
016  Redistribution and use in source and binary forms, with or without modification, 
017  are permitted provided that the following conditions are met:
018    
019   * Redistributions of source code must retain the above copyright notice, this 
020     list of conditions and the following disclaimer.
021   * Redistributions in binary form must reproduce the above copyright notice, 
022     this list of conditions and the following disclaimer in the documentation 
023     and/or other materials provided with the distribution.
024   * Neither the name of HL7 nor the names of its contributors may be used to 
025     endorse or promote products derived from this software without specific 
026     prior written permission.
027  
028  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
029  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
030  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
031  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
032  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
033  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
034  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
035  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
036  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
037  POSSIBILITY OF SUCH DAMAGE.
038  
039 */
040
041
042import org.hl7.fhir.convertors.advisors.impl.BaseAdvisor_40_50;
043import org.hl7.fhir.convertors.factory.VersionConvertorFactory_40_50;
044import org.hl7.fhir.convertors.txClient.TerminologyClientFactory;
045import org.hl7.fhir.exceptions.FHIRException;
046import org.hl7.fhir.r4.formats.JsonParser;
047import org.hl7.fhir.r4.formats.XmlParser;
048import org.hl7.fhir.r4.model.Basic;
049import org.hl7.fhir.r4.model.Resource;
050import org.hl7.fhir.r5.conformance.StructureDefinitionHacker;
051import org.hl7.fhir.r5.context.IContextResourceLoader;
052import org.hl7.fhir.r5.context.SimpleWorkerContext.PackageResourceLoader;
053import org.hl7.fhir.r5.model.Bundle;
054import org.hl7.fhir.r5.model.Bundle.BundleEntryComponent;
055import org.hl7.fhir.r5.model.Bundle.BundleType;
056import org.hl7.fhir.r5.model.CanonicalResource;
057import org.hl7.fhir.r5.model.CodeSystem;
058import org.hl7.fhir.r5.model.StructureDefinition;
059import org.hl7.fhir.r5.model.StructureDefinition.StructureDefinitionKind;
060import org.hl7.fhir.r5.terminologies.client.TerminologyClientManager.ITerminologyClientFactory;
061import org.hl7.fhir.r5.utils.R5Hacker;
062import org.hl7.fhir.utilities.Utilities;
063import org.hl7.fhir.utilities.filesystem.ManagedFileAccess;
064
065public class R4ToR5Loader extends BaseLoaderR5 implements IContextResourceLoader {
066
067  private final BaseAdvisor_40_50 advisor = new BaseAdvisor_40_50();
068  private String version;
069
070  public R4ToR5Loader(Set<String> types, ILoaderKnowledgeProviderR5 lkp, String version) { // might be 4B
071    super(types, lkp);
072    this.version = version;
073  }
074
075  @Override
076  public Bundle loadBundle(InputStream stream, boolean isJson) throws FHIRException, IOException {
077    Resource r4 = null;
078    if (isJson)
079      r4 = new JsonParser().parse(stream);
080    else
081      r4 = new XmlParser().parse(stream);
082    org.hl7.fhir.r5.model.Resource r5 = VersionConvertorFactory_40_50.convertResource(r4, advisor);
083
084    Bundle b;
085    if (r5 instanceof Bundle)
086      b = (Bundle) r5;
087    else {
088      b = new Bundle();
089      b.setId(UUID.randomUUID().toString().toLowerCase());
090      b.setType(BundleType.COLLECTION);
091      b.addEntry().setResource(r5).setFullUrl(r5 instanceof CanonicalResource ? ((CanonicalResource) r5).getUrl() : null);
092    }
093    for (CodeSystem cs : advisor.getCslist()) {
094      BundleEntryComponent be = b.addEntry();
095      be.setFullUrl(cs.getUrl());
096      be.setResource(cs);
097    }
098    if (killPrimitives) {
099      List<BundleEntryComponent> remove = new ArrayList<BundleEntryComponent>();
100      for (BundleEntryComponent be : b.getEntry()) {
101        if (be.hasResource() && be.getResource() instanceof StructureDefinition) {
102          StructureDefinition sd = (StructureDefinition) be.getResource();
103          if (sd.getKind() == StructureDefinitionKind.PRIMITIVETYPE)
104            remove.add(be);
105        }
106      }
107      b.getEntry().removeAll(remove);
108    }
109    if (patchUrls) {
110      for (BundleEntryComponent be : b.getEntry()) {
111        if (be.hasResource()) {
112          doPatchUrls(be.getResource());
113        }
114      }
115    }
116    return b;
117  }
118
119  @Override
120  public org.hl7.fhir.r5.model.Resource loadResource(InputStream stream, boolean isJson) throws FHIRException, IOException {
121    Resource r4 = null;
122    if (isJson)
123      r4 = new JsonParser().parse(stream);
124    else
125      r4 = new XmlParser().parse(stream);
126    org.hl7.fhir.r5.model.Resource r5 = VersionConvertorFactory_40_50.convertResource(r4);
127    setPath(r5);
128
129    if (!advisor.getCslist().isEmpty()) {
130      throw new FHIRException("Error: Cannot have included code systems");
131    }
132    if (killPrimitives) {
133      throw new FHIRException("Cannot kill primitives when using deferred loading");
134    }
135    if (r5 instanceof StructureDefinition) {
136      r5 = new StructureDefinitionHacker(version).fixSD((StructureDefinition) r5);
137    }
138    if (patchUrls) {
139      doPatchUrls(r5);
140    }
141    return r5;
142  }
143
144  
145  @Override
146  public List<CodeSystem> getCodeSystems() {
147    return new ArrayList<>();
148  }
149
150  @Override
151  protected String versionString() {
152    return "4.0";
153  }
154
155
156  @Override
157  public ITerminologyClientFactory txFactory() {
158    return new TerminologyClientFactory(versionString());
159  }
160
161  @Override
162  public Set<String> reviewActualTypes(Set<String> types) {
163    Set<String> set = new HashSet<String>();
164    for (String t : types) {
165      if (Utilities.existsInList(t, "ActorDefinition", "Requirements", "SubscriptionTopic", "TestPlan")) {
166        set.add("Basic");
167      } else {
168        set.add(t);
169      }      
170    }    
171    return set;
172  }
173
174  @Override
175  public PackageResourceLoader editInfo(PackageResourceLoader pri) {
176    if (pri.getType().equals("Basic")) {
177      try {
178        InputStream f = pri.getStream();
179        try {
180          Basic b = (Basic) new JsonParser().parse(f);
181          org.hl7.fhir.r5.model.Resource r5 = VersionConvertorFactory_40_50.convertResource(b);
182          if (r5 instanceof CanonicalResource) {
183            pri.setResource((CanonicalResource) r5);
184            pri.updateInfo();
185            setPath(r5);
186          } else {
187            return null;
188          }
189        } finally {
190          f.close();
191        }
192      } catch (Exception e) {
193        throw new FHIRException("Error loading Resource Basic/"+pri.getId()+": "+e.getMessage(), e);
194      }
195    }
196    return pri;
197  }
198}