forked from 4Science/DSpace
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge branch 'dspace-cris-7' into dspace-cris-7-orcid-relpref
- Loading branch information
Showing
168 changed files
with
8,642 additions
and
503 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
274 changes: 274 additions & 0 deletions
274
...-api/src/main/java/org/dspace/app/filetype/consumer/FileTypeMetadataEnhancerConsumer.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,274 @@ | ||
| /** | ||
| * The contents of this file are subject to the license and copyright | ||
| * detailed in the LICENSE and NOTICE files at the root of the source | ||
| * tree and available online at | ||
| * | ||
| * http://www.dspace.org/license/ | ||
| */ | ||
| package org.dspace.app.filetype.consumer; | ||
|
|
||
| import static org.dspace.util.FunctionalUtils.throwingConsumerWrapper; | ||
| import static org.dspace.util.FunctionalUtils.throwingMapperWrapper; | ||
|
|
||
| import java.sql.SQLException; | ||
| import java.text.MessageFormat; | ||
| import java.util.Collection; | ||
| import java.util.HashSet; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.Objects; | ||
| import java.util.Optional; | ||
| import java.util.Set; | ||
| import java.util.function.Predicate; | ||
| import java.util.stream.Collectors; | ||
| import java.util.stream.Stream; | ||
|
|
||
| import org.apache.commons.codec.binary.StringUtils; | ||
| import org.dspace.content.Bitstream; | ||
| import org.dspace.content.Bundle; | ||
| import org.dspace.content.DSpaceObject; | ||
| import org.dspace.content.Item; | ||
| import org.dspace.content.MetadataField; | ||
| import org.dspace.content.MetadataFieldName; | ||
| import org.dspace.content.MetadataValue; | ||
| import org.dspace.content.factory.ContentServiceFactory; | ||
| import org.dspace.content.service.BitstreamService; | ||
| import org.dspace.content.service.ItemService; | ||
| import org.dspace.core.Constants; | ||
| import org.dspace.core.Context; | ||
| import org.dspace.core.exception.SQLRuntimeException; | ||
| import org.dspace.event.Consumer; | ||
| import org.dspace.event.Event; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
|
|
||
| public class FileTypeMetadataEnhancerConsumer implements Consumer { | ||
|
|
||
| private static final Logger logger = LoggerFactory.getLogger(FileTypeMetadataEnhancerConsumer.class); | ||
|
|
||
| protected static final MetadataFieldName entityTypeMetadata = new MetadataFieldName("dc", "type"); | ||
| protected static final MetadataFieldName fileTypeMetadata = new MetadataFieldName("dspace", "file", "type"); | ||
| private static final List<MetadataFieldName> itemMetadatas = List.of(fileTypeMetadata); | ||
| private static final List<MetadataFieldName> bitstreamMetadatas = List.of(entityTypeMetadata); | ||
| private static final Map<String, MetadataFieldName> bitstreamToItemMetadatasMap = Map.of( | ||
| entityTypeMetadata.toString(), fileTypeMetadata | ||
| ); | ||
|
|
||
| private BitstreamService bitstreamService; | ||
| private ItemService itemService; | ||
|
|
||
| private Set<Bitstream> bitstreamAlreadyProcessed = new HashSet<>(); | ||
| private Set<Item> itemsToProcess = new HashSet<>(); | ||
|
|
||
| @Override | ||
| public void initialize() throws Exception { | ||
| this.bitstreamService = ContentServiceFactory.getInstance().getBitstreamService(); | ||
| this.itemService = ContentServiceFactory.getInstance().getItemService(); | ||
| } | ||
|
|
||
| @Override | ||
| public void consume(Context ctx, Event event) throws Exception { | ||
| if (Constants.BITSTREAM == event.getSubjectType()) { | ||
| this.handleBitStreamConsumer( | ||
| ctx, | ||
| Optional.ofNullable((Bitstream) event.getObject(ctx)) | ||
| .orElse(this.loadBitstream(ctx, event)), | ||
| event | ||
| ); | ||
| } else if (Constants.ITEM == event.getSubjectType() && Event.CREATE == event.getEventType()) { | ||
| this.handleItemConsumer( | ||
| ctx, | ||
| Optional.ofNullable((Item) event.getObject(ctx)) | ||
| .orElse(this.loadItem(ctx, event)) | ||
| ); | ||
| } else { | ||
| logger.warn( | ||
| "Can't consume the DSPaceObject with id {}, only BITSTREAM and ITEMS'CREATION events are consumable!", | ||
| event.getSubjectID() | ||
| ); | ||
| } | ||
| } | ||
|
|
||
| @Override | ||
| public void end(Context ctx) throws Exception { | ||
| bitstreamAlreadyProcessed.clear(); | ||
| this.itemsToProcess | ||
| .stream() | ||
| .forEach(item -> this.handleItemConsumer(ctx, item)); | ||
| itemsToProcess.clear(); | ||
| } | ||
|
|
||
| @Override | ||
| public void finish(Context ctx) throws Exception {} | ||
|
|
||
| private Bitstream loadBitstream(Context ctx, Event event) { | ||
| Bitstream found = null; | ||
| try { | ||
| found = this.bitstreamService.find(ctx, event.getSubjectID()); | ||
| } catch (SQLException e) { | ||
| logger.error("Error while retrieving the bitstream with ID: " + event.getSubjectID(), e); | ||
| throw new SQLRuntimeException("Error while retrieving the bitstream with ID: " + event.getSubjectID(), e); | ||
| } | ||
| return found; | ||
| } | ||
|
|
||
| private Item loadItem(Context ctx, Event event) { | ||
| Item found = null; | ||
| try { | ||
| found = this.itemService.find(ctx, event.getSubjectID()); | ||
| } catch (SQLException e) { | ||
| logger.error("Error while retrieving the bitstream with ID: " + event.getSubjectID(), e); | ||
| throw new SQLRuntimeException("Error while retrieving the bitstream with ID: " + event.getSubjectID(), e); | ||
| } | ||
| return found; | ||
| } | ||
|
|
||
| private void handleBitStreamConsumer(Context ctx, Bitstream bitstream, Event event) { | ||
|
|
||
| if (bitstream == null || this.alreadyProcessed(bitstream)) { | ||
| return; | ||
| } | ||
| List<Item> bitstreamItems = List.of(); | ||
| try { | ||
| bitstreamItems = bitstream.getBundles() | ||
| .stream() | ||
| .filter(bundle -> "ORIGINAL".equals(bundle.getName())) | ||
| .map(Bundle::getItems) | ||
| .flatMap(Collection::stream) | ||
| .collect(Collectors.toList()); | ||
| } catch (Exception e) { | ||
| throw new RuntimeException(e); | ||
| } finally { | ||
| bitstreamAlreadyProcessed.add(bitstream); | ||
| bitstreamItems | ||
| .stream() | ||
| .forEach(item -> this.itemsToProcess.add(item)); | ||
| } | ||
| } | ||
|
|
||
| private void handleItemConsumer(Context ctx, Item item) { | ||
|
|
||
| if (item == null) { | ||
| return; | ||
| } | ||
|
|
||
| try { | ||
| Item loadedItem = this.itemService.find(ctx, item.getID()); | ||
| Map<MetadataField, List<String>> grouped = | ||
| Optional.ofNullable(loadedItem) | ||
| .map(i -> i.getBundles("ORIGINAL")) | ||
| .filter(bundles -> !bundles.isEmpty()) | ||
| .map(bundles -> bundles.get(0)) | ||
| .map(Bundle::getBitstreams) | ||
| .filter(bitstreams -> !bitstreams.isEmpty()) | ||
| .map(bitstreams -> getMetadatasForItem(ctx, bitstreams).collect(Collectors.toList())) | ||
| .map(metadatas -> groupByMetadataField(metadatas)) | ||
| .filter(metadatas -> !metadatas.isEmpty()) | ||
| .orElse(Map.of()); | ||
|
|
||
| this.itemService.removeMetadataValues(ctx, loadedItem, getRemovableMetadatas(loadedItem)); | ||
|
|
||
| grouped | ||
| .entrySet() | ||
| .stream() | ||
| .map(entry -> | ||
| Map.entry(bitstreamToItemMetadatasMap.get(entry.getKey().toString('.')), entry.getValue()) | ||
| ) | ||
| .filter(entry -> entry.getKey() != null) | ||
| .forEach( | ||
| throwingConsumerWrapper(entry -> | ||
| this.addMetadata( | ||
| ctx, | ||
| loadedItem, | ||
| entry.getKey(), | ||
| entry.getValue() | ||
| ) | ||
| ) | ||
| ); | ||
|
|
||
| } catch (SQLException e) { | ||
| logger.error(MessageFormat.format("Error while processing item {}!", item.getID().toString()), e); | ||
| throw new SQLRuntimeException(e); | ||
| } | ||
|
|
||
| } | ||
|
|
||
| private void addMetadata(Context ctx, Item loadedItem, MetadataFieldName metadata, List<String> value) | ||
| throws SQLException { | ||
| this.itemService.addMetadata( | ||
| ctx, | ||
| loadedItem, | ||
| metadata.schema, | ||
| metadata.element, | ||
| metadata.qualifier, | ||
| null, | ||
| value | ||
| ); | ||
| } | ||
|
|
||
| private Stream<MetadataValue> getMetadatasForItem(Context ctx, List<Bitstream> bitstreams) { | ||
| return bitstreams | ||
| .stream() | ||
| .map( | ||
| throwingMapperWrapper(bitstream -> | ||
| this.bitstreamService.find(ctx, bitstream.getID()), | ||
| null | ||
| ) | ||
| ) | ||
| .filter(Objects::nonNull) | ||
| .flatMap(bitstream -> filterBitstreamMetadatasForItem(bitstream)); | ||
| } | ||
|
|
||
| private Stream<MetadataValue> filterBitstreamMetadatasForItem(Bitstream bitstream) { | ||
| return bitstream.getMetadata() | ||
| .stream() | ||
| .filter( | ||
| metadataFilter( | ||
| bitstreamMetadatas | ||
| ) | ||
| ); | ||
| } | ||
|
|
||
| private Map<MetadataField, List<String>> groupByMetadataField(List<MetadataValue> metadatas) { | ||
| return this.collectByGroupingMetadataFieldMappingValue(metadatas.stream()); | ||
| } | ||
|
|
||
| private Map<MetadataField, List<String>> collectByGroupingMetadataFieldMappingValue(Stream<MetadataValue> stream) { | ||
| return stream | ||
| .collect( | ||
| Collectors.groupingBy( | ||
| MetadataValue::getMetadataField, | ||
| Collectors.mapping(MetadataValue::getValue, Collectors.toList()) | ||
| ) | ||
| ); | ||
| } | ||
|
|
||
| private boolean alreadyProcessed(Bitstream bitstream) { | ||
| return bitstreamAlreadyProcessed.contains(bitstream); | ||
| } | ||
|
|
||
| private List<MetadataValue> getRemovableMetadatas(DSpaceObject dspaceObject) { | ||
| return dspaceObject | ||
| .getMetadata() | ||
| .stream() | ||
| .filter( | ||
| metadataFilter( | ||
| itemMetadatas | ||
| ) | ||
| ) | ||
| .collect(Collectors.toList()); | ||
| } | ||
|
|
||
| private Predicate<? super MetadataValue> metadataFilter(List<MetadataFieldName> metadataFields) { | ||
| return metadata -> | ||
| metadataFields | ||
| .stream() | ||
| .filter(field -> | ||
| StringUtils.equals(field.schema, metadata.getSchema()) && | ||
| StringUtils.equals(field.element, metadata.getElement()) && | ||
| StringUtils.equals(field.qualifier, metadata.getQualifier()) | ||
| ) | ||
| .findFirst() | ||
| .isPresent(); | ||
| } | ||
| } |
Oops, something went wrong.