de.digitalcollections.iiif.bookshelf.business.impl.service.IiifCollectionServiceImpl Maven / Gradle / Ivy

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The bookshelf is a webapp for collecting IIIF representations of books. It is based on the functionality of the IIIF Presentation API for modelling books. You can add books to your bookshelf loading the manifest.json of the book by its web-address.

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package de.digitalcollections.iiif.bookshelf.business.impl.service;

import de.digitalcollections.iiif.bookshelf.business.api.service.IiifCollectionService;
import de.digitalcollections.iiif.bookshelf.business.api.service.IiifManifestSummaryService;
import de.digitalcollections.iiif.bookshelf.model.IiifManifestSummary;
import de.digitalcollections.iiif.model.sharedcanvas.Collection;
import de.digitalcollections.iiif.model.sharedcanvas.Manifest;
import java.io.IOException;
import java.net.URISyntaxException;
import java.util.List;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class IiifCollectionServiceImpl implements IiifCollectionService {

  private static final Logger LOGGER = LoggerFactory.getLogger(IiifCollectionServiceImpl.class);

  @Autowired
  private IiifManifestSummaryService iiifManifestSummaryService;

  @Autowired
  private StrictCollectionParser strictCollectionParser;

  @Override
  public void importAllObjects(IiifManifestSummary manifestSummary) throws URISyntaxException, IOException {
    Collection collection = strictCollectionParser.parse(manifestSummary.getManifestUri());
    saveManifestsFromCollection(collection);
  }

  private void saveManifestsFromCollection(Collection collection) throws IOException {
    final List manifests = collection.getManifests();
    final List subCollections = collection.getCollections();

    int manifestsCount = (manifests != null) ? manifests.size() : -1;
    int subCollectionsCount = (subCollections != null) ? subCollections.size() : -1;
    LOGGER.info("Processing collection '{}' with {} manifests and {} sub collections.", collection.getIdentifier().toString(), manifestsCount, subCollectionsCount);

    // try to get list of manifests
    if (manifests != null) {
      for (Manifest manifest : manifests) {
        final String manifestUri = manifest.getIdentifier().toString();

        IiifManifestSummary summary = new IiifManifestSummary();
        summary.setManifestUri(manifestUri);

        try {
          iiifManifestSummaryService.enrichAndSave(summary);
        } catch (Exception e) {
          LOGGER.warn("Could not read manifest from {} because of error {}", manifestUri, e.getMessage());
        }
      }
    }

    // try to get subcollections
    if (subCollections != null) {
      for (Collection subCollection : subCollections) {
        final String subCollectionIdentifier = subCollection.getIdentifier().toString();
        try {
          subCollection = strictCollectionParser.parse(subCollectionIdentifier);
          saveManifestsFromCollection(subCollection);
        } catch (Exception e) {
          LOGGER.warn("Could not read collection from {} because of error {}", subCollectionIdentifier, e.getMessage());
        }
      }
    }
  }
}