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// $Id$
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/**
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* Copyright (C) 2007 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.cdm.api.service;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Set;
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import java.util.UUID;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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import eu.etaxonomy.cdm.api.service.config.DeleteConfiguratorBase;
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import eu.etaxonomy.cdm.api.service.config.MediaDeletionConfigurator;
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import eu.etaxonomy.cdm.api.service.exception.ReferencedObjectUndeletableException;
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import eu.etaxonomy.cdm.api.service.pager.Pager;
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import eu.etaxonomy.cdm.api.service.pager.impl.DefaultPagerImpl;
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import eu.etaxonomy.cdm.common.monitor.IProgressMonitor;
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import eu.etaxonomy.cdm.hibernate.HibernateProxyHelper;
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import eu.etaxonomy.cdm.model.common.CdmBase;
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import eu.etaxonomy.cdm.model.description.DescriptionBase;
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import eu.etaxonomy.cdm.model.description.MediaKey;
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import eu.etaxonomy.cdm.model.description.SpecimenDescription;
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import eu.etaxonomy.cdm.model.description.TaxonDescription;
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import eu.etaxonomy.cdm.model.description.TextData;
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import eu.etaxonomy.cdm.model.location.NamedArea;
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import eu.etaxonomy.cdm.model.media.Media;
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import eu.etaxonomy.cdm.model.media.Rights;
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import eu.etaxonomy.cdm.model.occurrence.SpecimenOrObservationBase;
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import eu.etaxonomy.cdm.model.taxon.Taxon;
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import eu.etaxonomy.cdm.persistence.dao.media.IMediaDao;
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import eu.etaxonomy.cdm.strategy.cache.common.IIdentifiableEntityCacheStrategy;
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@Service
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@Transactional(readOnly=true)
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public class MediaServiceImpl extends IdentifiableServiceBase<Media,IMediaDao> implements IMediaService {
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@Override
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@Autowired
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protected void setDao(IMediaDao dao) {
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this.dao = dao;
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}
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@Autowired
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private IDescriptionService descriptionService;
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@Override
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public Pager<MediaKey> getMediaKeys(Set<Taxon> taxonomicScope, Set<NamedArea> geoScopes, Integer pageSize, Integer pageNumber, List<String> propertyPaths) {
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Integer numberOfResults = dao.countMediaKeys(taxonomicScope, geoScopes);
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List<MediaKey> results = new ArrayList<MediaKey>();
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if(numberOfResults > 0) { // no point checking again //TODO use AbstractPagerImpl.hasResultsInRange(numberOfResults, pageNumber, pageSize)
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results = dao.getMediaKeys(taxonomicScope, geoScopes, pageSize, pageNumber, propertyPaths);
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}
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return new DefaultPagerImpl<MediaKey>(pageNumber, numberOfResults, pageSize, results);
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}
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@Override
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public Pager<Rights> getRights(Media t, Integer pageSize, Integer pageNumber, List<String> propertyPaths) {
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Integer numberOfResults = dao.countRights(t);
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List<Rights> results = new ArrayList<Rights>();
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if(numberOfResults > 0) { // no point checking again //TODO use AbstractPagerImpl.hasResultsInRange(numberOfResults, pageNumber, pageSize)
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results = dao.getRights(t, pageSize, pageNumber,propertyPaths);
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}
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return new DefaultPagerImpl<Rights>(pageNumber, numberOfResults, pageSize, results);
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.cdm.api.service.IIdentifiableEntityService#updateTitleCache(java.lang.Integer, eu.etaxonomy.cdm.strategy.cache.common.IIdentifiableEntityCacheStrategy)
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*/
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@Override
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@Transactional(readOnly = false)
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public void updateTitleCache(Class<? extends Media> clazz, Integer stepSize, IIdentifiableEntityCacheStrategy<Media> cacheStrategy, IProgressMonitor monitor) {
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//IIdentifiableEntityCacheStrategy<Media> cacheStrategy = MediaDefaultCacheStrategy();
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if (clazz == null){
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clazz = Media.class;
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}
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super.updateTitleCacheImpl(clazz, stepSize, cacheStrategy, monitor);
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.cdm.api.service.IMediaService#delete(java.util.UUID, eu.etaxonomy.cdm.api.service.config.MediaDeletionConfigurator)
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*/
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@Override
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public DeleteResult delete(UUID mediaUuid, MediaDeletionConfigurator config) {
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DeleteResult result = new DeleteResult();
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Media media = this.load(mediaUuid);
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result = isDeletable(media, config);
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if (result.isOk()){
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Set<CdmBase> references = commonService.getReferencingObjectsForDeletion(media);
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String message = null;
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for (CdmBase ref: references){
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if (ref instanceof TextData){
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TextData textData = HibernateProxyHelper.deproxy(ref, TextData.class);
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DescriptionBase description = textData.getInDescription();
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if (description.isImageGallery()){
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if (description instanceof TaxonDescription){
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TaxonDescription desc = HibernateProxyHelper.deproxy(description, TaxonDescription.class);
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if (desc.getTaxon() == null ){
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continue;
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} else if ( config.isDeleteIfUsedInTaxonDescription()){
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Taxon taxon = desc.getTaxon();
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desc.removeElement(textData);
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textData.removeMedia(media);
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if (desc.getElements().isEmpty()){
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taxon.removeDescription(desc);
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}
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}
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} else if (description instanceof SpecimenDescription){
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SpecimenDescription desc = HibernateProxyHelper.deproxy(description, SpecimenDescription.class);
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if (desc.getDescribedSpecimenOrObservation() == null || config.isDeleteIfUsedInSpecimenDescription()){
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continue;
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} else if (config.isDeleteIfUsedInSpecimenDescription()){
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SpecimenOrObservationBase<?> specimen = desc.getDescribedSpecimenOrObservation();
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desc.removeElement(textData);
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textData.removeMedia(media);
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if (desc.getElements().isEmpty()){
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specimen.removeDescription(desc);
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}
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}
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}
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}
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}
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dao.delete(media);
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}
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}
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return result;
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}
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@Override
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public DeleteResult isDeletable(Media media, DeleteConfiguratorBase config){
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DeleteResult result = new DeleteResult();
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Set<CdmBase> references = commonService.getReferencingObjectsForDeletion(media);
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String message = null;
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MediaDeletionConfigurator mediaConfig = (MediaDeletionConfigurator)config;
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for (CdmBase ref: references){
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if (ref instanceof TextData){
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TextData textData = HibernateProxyHelper.deproxy(ref, TextData.class);
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DescriptionBase description = textData.getInDescription();
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if (description.isImageGallery()){
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if (description instanceof TaxonDescription){
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TaxonDescription desc = HibernateProxyHelper.deproxy(description, TaxonDescription.class);
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if (desc.getTaxon() == null || mediaConfig.isDeleteIfUsedInTaxonDescription()){
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continue;
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} else{
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message = "The media can't be deleted because it is referenced by a taxon. ("+desc.getTaxon().getTitleCache()+")";
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}
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} else if (description instanceof SpecimenDescription){
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SpecimenDescription desc = HibernateProxyHelper.deproxy(description, SpecimenDescription.class);
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if (desc.getDescribedSpecimenOrObservation() == null || mediaConfig.isDeleteIfUsedInSpecimenDescription()){
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continue;
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} else{
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message = "The media can't be deleted because it is referenced by a specimen or observation. ("+desc.getDescribedSpecimenOrObservation().getTitleCache()+")";
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}
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}
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}
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}
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if (message != null){
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result.addException(new ReferencedObjectUndeletableException(message));
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result.addRelatedObject(ref);
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result.setAbort();
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}
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}
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return result;
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}
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}
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