001package org.hl7.fhir.r4.utils;
002
003/*
004  Copyright (c) 2011+, HL7, Inc.
005  All rights reserved.
006  
007  Redistribution and use in source and binary forms, with or without modification, 
008  are permitted provided that the following conditions are met:
009    
010   * Redistributions of source code must retain the above copyright notice, this 
011     list of conditions and the following disclaimer.
012   * Redistributions in binary form must reproduce the above copyright notice, 
013     this list of conditions and the following disclaimer in the documentation 
014     and/or other materials provided with the distribution.
015   * Neither the name of HL7 nor the names of its contributors may be used to 
016     endorse or promote products derived from this software without specific 
017     prior written permission.
018  
019  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
020  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
021  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
022  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
023  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
024  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
025  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
026  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
027  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
028  POSSIBILITY OF SUCH DAMAGE.
029  
030 */
031
032import java.io.File;
033import java.io.FileInputStream;
034import java.io.FileNotFoundException;
035import java.io.IOException;
036import java.text.SimpleDateFormat;
037import java.util.Date;
038import java.util.UUID;
039
040import org.hl7.fhir.exceptions.FHIRException;
041import org.hl7.fhir.exceptions.FHIRFormatError;
042import org.hl7.fhir.r4.formats.IParser;
043import org.hl7.fhir.r4.formats.JsonParser;
044import org.hl7.fhir.r4.formats.XmlParser;
045import org.hl7.fhir.r4.model.Bundle;
046import org.hl7.fhir.r4.model.Bundle.BundleEntryComponent;
047import org.hl7.fhir.r4.model.Bundle.BundleType;
048import org.hl7.fhir.r4.model.Bundle.HTTPVerb;
049import org.hl7.fhir.r4.model.Resource;
050import org.hl7.fhir.r4.utils.client.FHIRToolingClient;
051import org.hl7.fhir.utilities.IniFile;
052import org.hl7.fhir.utilities.Utilities;
053
054public class BatchLoader {
055
056  public static void main(String[] args) throws IOException, Exception {
057    if (args.length < 3) {
058      System.out.println(
059          "Batch uploader takes 3 parameters in order: server base url, file/folder to upload, and batch size");
060    } else {
061      String server = args[0];
062      String file = args[1];
063      int size = Integer.parseInt(args[2]);
064      if (file.endsWith(".xml")) {
065        throw new FHIRException("Unimplemented file type " + file);
066      } else if (file.endsWith(".json")) {
067        throw new FHIRException("Unimplemented file type " + file);
068//              } else if (file.endsWith(".zip")) {
069//                      LoadZipFile(server, file, p, size, 0, -1);
070      } else if (new File(file).isDirectory()) {
071        LoadDirectory(server, file, size);
072      } else
073        throw new FHIRException("Unknown file type " + file);
074    }
075  }
076
077  private static void LoadDirectory(String server, String folder, int size) throws IOException, Exception {
078    System.out.print("Connecting to " + server + ".. ");
079    FHIRToolingClient client = new FHIRToolingClient(server, "fhir/batch-loader");
080    System.out.println("Done");
081
082    IniFile ini = new IniFile(Utilities.path(folder, "batch-load-progress.ini"));
083    for (File f : new File(folder).listFiles()) {
084      if (f.getName().endsWith(".json") || f.getName().endsWith(".xml")) {
085        if (!ini.getBooleanProperty("finished", f.getName())) {
086          sendFile(client, f, size, ini);
087        }
088      }
089    }
090  }
091
092  private static void sendFile(FHIRToolingClient client, File f, int size, IniFile ini)
093      throws FHIRFormatError, FileNotFoundException, IOException {
094    long ms = System.currentTimeMillis();
095    System.out.print("Loading " + f.getName() + ".. ");
096    IParser parser = f.getName().endsWith(".json") ? new JsonParser() : new XmlParser();
097    Resource res = parser.parse(new FileInputStream(f));
098    System.out.println("  done: (" + Long.toString(System.currentTimeMillis() - ms) + " ms)");
099
100    if (res instanceof Bundle) {
101      Bundle bnd = (Bundle) res;
102      int cursor = ini.hasProperty("progress", f.getName()) ? ini.getIntegerProperty("progress", f.getName()) : 0;
103      while (cursor < bnd.getEntry().size()) {
104        Bundle bt = new Bundle();
105        bt.setType(BundleType.BATCH);
106        bt.setId(UUID.randomUUID().toString().toLowerCase());
107        for (int i = cursor; i < Math.min(bnd.getEntry().size(), cursor + size); i++) {
108          BundleEntryComponent be = bt.addEntry();
109          be.setResource(bnd.getEntry().get(i).getResource());
110          be.getRequest().setMethod(HTTPVerb.PUT);
111          be.getRequest().setUrl(be.getResource().getResourceType().toString() + "/" + be.getResource().getId());
112        }
113        System.out.print(f.getName() + " (" + cursor + "/" + bnd.getEntry().size() + "): ");
114        ms = System.currentTimeMillis();
115        Bundle resp = client.transaction(bt);
116
117        int ncursor = cursor + size;
118        for (int i = 0; i < resp.getEntry().size(); i++) {
119          BundleEntryComponent t = resp.getEntry().get(i);
120          if (!t.getResponse().getStatus().startsWith("2")) {
121            System.out.println("failed status at " + Integer.toString(i) + ": " + t.getResponse().getStatus());
122            ncursor = cursor + i - 1;
123            break;
124          }
125        }
126        cursor = ncursor;
127        System.out.println("  .. done: (" + Long.toString(System.currentTimeMillis() - ms) + " ms) "
128            + SimpleDateFormat.getInstance().format(new Date()));
129        ini.setIntegerProperty("progress", f.getName(), cursor, null);
130        ini.save();
131      }
132      ini.setBooleanProperty("finished", f.getName(), true, null);
133      ini.save();
134    } else {
135      client.update(res);
136      ini.setBooleanProperty("finished", f.getName(), true, null);
137      ini.save();
138    }
139  }
140//
141//  private static void LoadZipFile(String server, String file, IParser p, int size, int start, int end) throws IOException, Exception {
142//              System.out.println("Load Zip file "+file);
143//              Bundle b = new Bundle();
144//              b.setType(BundleType.COLLECTION);
145//              b.setId(UUID.randomUUID().toString().toLowerCase());
146//              ZipInputStream zip = new ZipInputStream(new FileInputStream(file));
147//              ZipEntry entry;
148//    while((entry = zip.getNextEntry())!=null)
149//    {
150//      try {
151//        Resource r = p.parse(zip);
152//        b.addEntry().setResource(r);
153//      } catch (Exception e) {
154//              throw new Exception("Error parsing "+entry.getName()+": "+e.getMessage(), e);
155//      }
156//    }
157//              loadBundle(server, b, size, start, end);
158//      }
159//
160//  
161//      private static int loadBundle(String server, Bundle b, int size, int start, int end) throws URISyntaxException {
162//              System.out.println("Post to "+server+". size = "+Integer.toString(size)+", start = "+Integer.toString(start)+", total = "+Integer.toString(b.getEntry().size()));
163//              FHIRToolingClient client = new FHIRToolingClient(server);
164//        int c = start;
165//        if (end == -1)
166//          end = b.getEntry().size();
167//        while (c < end) {
168//                      Bundle bt = new Bundle();
169//                      bt.setType(BundleType.BATCH);                   
170//                      bt.setId(UUID.randomUUID().toString().toLowerCase());
171//                      for (int i = c; i < Math.min(b.getEntry().size(), c+size); i++) {
172//                              BundleEntryComponent be = bt.addEntry();
173//                              be.setResource(b.getEntry().get(i).getResource());
174//                              be.getRequest().setMethod(HTTPVerb.PUT);
175//                              be.getRequest().setUrl(be.getResource().getResourceType().toString()+"/"+be.getResource().getId());
176//                      }
177//                      System.out.print("  posting..");
178//                      long ms = System.currentTimeMillis();
179//                      Bundle resp = client.transaction(bt);
180//                      
181//                      for (int i = 0; i < resp.getEntry().size(); i++) {
182//                        BundleEntryComponent t = resp.getEntry().get(i);
183//                        if (!t.getResponse().getStatus().startsWith("2")) { 
184//                          System.out.println("failed status at "+Integer.toString(i)+": "+t.getResponse().getStatus());
185//                          return c+i;
186//                        }
187//                      }
188//                      c = c + size;
189//      System.out.println("  ..done: "+Integer.toString(c)+". ("+Long.toString(System.currentTimeMillis()-ms)+" ms)");
190//        }
191//              System.out.println(" done");
192//              return c;
193//      }
194
195}