001package org.hl7.fhir.r4.utils;
002
003/*-
004 * #%L
005 * org.hl7.fhir.r4
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.File;
025import java.io.FileInputStream;
026import java.io.FileNotFoundException;
027import java.io.FileOutputStream;
028import java.io.IOException;
029
030import org.apache.commons.lang3.StringUtils;
031import org.hl7.fhir.r4.model.ValueSet;
032import org.hl7.fhir.exceptions.FHIRFormatError;
033import org.hl7.fhir.r4.formats.JsonParser;
034import org.hl7.fhir.r4.model.Bundle;
035import org.hl7.fhir.r4.model.Bundle.BundleEntryComponent;
036import org.hl7.fhir.r4.model.MetadataResource;
037import org.hl7.fhir.r4.model.Resource;
038import org.hl7.fhir.utilities.Utilities;
039
040public class Unbundler {
041
042  public static void main(String[] args) throws Exception {
043    unbundle(args[0]);
044  }
045
046
047  private static void unbundle(String src) throws FHIRFormatError, FileNotFoundException, IOException {
048    String folder = Utilities.getDirectoryForFile(src);
049    Bundle bnd = (Bundle) new JsonParser().parse(new FileInputStream(src));
050    for (BundleEntryComponent be : bnd.getEntry()) {
051      Resource r = be.getResource();
052      if (r != null) {
053        if (StringUtils.isBlank(r.getId())) {
054          if (r instanceof MetadataResource)
055            r.setId(tail((MetadataResource) r));
056        }
057        if (!StringUtils.isBlank(r.getId())) {
058          String tgt = Utilities.path(folder, r.fhirType()+"-"+r.getId()+".json");
059          if (!new File(tgt).exists())
060            new JsonParser().compose(new FileOutputStream(tgt), r);
061        }
062      }
063    }
064  }
065
066  private static String tail(MetadataResource r) {
067    return r.getUrl().contains("/") ? r.getUrl().substring(r.getUrl().lastIndexOf("/")+1) : null;
068  }
069}