de.digitalcollections.iiif.bookshelf.config.mongeez.changeset_004.xml Maven / Gradle / Ivy

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<mongoChangeLog>

  <changeSet changeId="Bookshelf-004" author="matthias">
    <script>
      // Get the collection
      var collection = db.getCollection('iiif-manifest-summaries');
      // Initialize the Ordered Batch
      var bulk = collection.initializeOrderedBulkOp();
      var bulkResult;
      // Initialize the counter
      var counter = 0;

      collection.find({'thumbnail': {$ne: null}}).forEach(function(doc){
        var iiifImageApiVersion = doc.thumbnail.iiifImageApiVersion;
        var iiifImageServiceUri = doc.thumbnail.iiifImageServiceUri;
        var url = doc.thumbnail.url;
        var updateOperation = null;
      
        if(iiifImageApiVersion !== null){
          if(iiifImageApiVersion === 'V1_1'){
            updateOperation = {
              '$set': {'thumbnail.url': iiifImageServiceUri + '/full/280,/0/native.jpg'},
              '$unset': {'thumbnail.iiifImageApiVersion': 1, 'thumbnail.iiifImageServiceUri': 1}
            }
          }else if(iiifImageApiVersion === 'V2'){
            updateOperation = {
              '$set': {'thumbnail.url': iiifImageServiceUri + '/full/280,/0/default.jpg'},
              '$unset': {'thumbnail.iiifImageApiVersion': 1, 'thumbnail.iiifImageServiceUri': 1}
            }
          }
        }else if(url === null){
          if(iiifImageServiceUri !== null){
            updateOperation = {
              '$set': {'thumbnail.url': iiifImageServiceUri + '/full/280,/0/native.jpg'},
              '$unset': {'thumbnail.iiifImageServiceUri': 1}
            }
          }
        }

        if(updateOperation !== null){
          bulk.find({'_id': doc._id}).updateOne(updateOperation);

          counter++;
        }

        if(counter % 1000 === 0 ){
          bulkResult = bulk.execute();
          print('Mongeez: migrated ' + counter + ' documents.');
          // Re-initialise batch operation
          bulk = collection.initializeOrderedBulkOp();
        }
      });

      if(counter % 1000 !== 0 ){
        bulk.execute();
      }

      print('Mongeez: migrated ' + counter + ' documents.');
    </script>
  </changeSet>

</mongoChangeLog>