193 lines
8.8 KiB
Java
193 lines
8.8 KiB
Java
package eu.eudat.service.lock;
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import eu.eudat.authorization.AffiliatedResource;
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import eu.eudat.authorization.AuthorizationFlags;
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import eu.eudat.authorization.Permission;
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import eu.eudat.authorization.authorizationcontentresolver.AuthorizationContentResolver;
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import eu.eudat.commons.scope.user.UserScope;
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import eu.eudat.convention.ConventionService;
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import eu.eudat.data.LockEntity;
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import eu.eudat.errorcode.ErrorThesaurusProperties;
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import eu.eudat.model.Lock;
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import eu.eudat.model.builder.LockBuilder;
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import eu.eudat.model.deleter.LockDeleter;
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import eu.eudat.model.persist.LockPersist;
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import eu.eudat.query.LockQuery;
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import gr.cite.commons.web.authz.service.AuthorizationService;
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import gr.cite.tools.data.builder.BuilderFactory;
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import gr.cite.tools.data.deleter.DeleterFactory;
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import gr.cite.tools.data.query.QueryFactory;
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import gr.cite.tools.exception.MyApplicationException;
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import gr.cite.tools.exception.MyForbiddenException;
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import gr.cite.tools.exception.MyNotFoundException;
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import gr.cite.tools.exception.MyValidationException;
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import gr.cite.tools.fieldset.BaseFieldSet;
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import gr.cite.tools.fieldset.FieldSet;
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import gr.cite.tools.logging.LoggerService;
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import gr.cite.tools.logging.MapLogEntry;
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import jakarta.persistence.EntityManager;
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import org.slf4j.LoggerFactory;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.context.MessageSource;
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import org.springframework.context.i18n.LocaleContextHolder;
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import org.springframework.stereotype.Service;
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import javax.management.InvalidApplicationException;
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import java.time.Instant;
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import java.util.Comparator;
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import java.util.Date;
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import java.util.List;
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import java.util.UUID;
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@Service
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public class LockServiceImpl implements LockService {
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private static final LoggerService logger = new LoggerService(LoggerFactory.getLogger(LockServiceImpl.class));
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private final Comparator<LockEntity> compareByTouchedAt = Comparator.comparing(o -> o.getTouchedAt());
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private final EntityManager entityManager;
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private final UserScope userScope;
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private final AuthorizationService authorizationService;
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private final DeleterFactory deleterFactory;
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private final BuilderFactory builderFactory;
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private final QueryFactory queryFactory;
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private final ConventionService conventionService;
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private final MessageSource messageSource;
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private final ErrorThesaurusProperties errors;
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private final AuthorizationContentResolver authorizationContentResolver;
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@Autowired
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public LockServiceImpl(
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EntityManager entityManager,
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UserScope userScope,
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AuthorizationService authorizationService,
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DeleterFactory deleterFactory,
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BuilderFactory builderFactory,
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QueryFactory queryFactory,
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ConventionService conventionService,
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MessageSource messageSource,
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ErrorThesaurusProperties errors, AuthorizationContentResolver authorizationContentResolver) {
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this.entityManager = entityManager;
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this.userScope = userScope;
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this.authorizationService = authorizationService;
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this.deleterFactory = deleterFactory;
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this.builderFactory = builderFactory;
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this.queryFactory = queryFactory;
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this.conventionService = conventionService;
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this.messageSource = messageSource;
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this.errors = errors;
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this.authorizationContentResolver = authorizationContentResolver;
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}
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public Lock persist(LockPersist model, FieldSet fields) throws MyForbiddenException, MyValidationException, MyApplicationException, MyNotFoundException, InvalidApplicationException {
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logger.debug(new MapLogEntry("persisting data").And("model", model).And("fields", fields));
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AffiliatedResource affiliatedResourceDmp = this.authorizationContentResolver.dmpAffiliation(model.getTarget());
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AffiliatedResource affiliatedResourceDescription = this.authorizationContentResolver.descriptionAffiliation(model.getTarget());
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this.authorizationService.authorizeAtLeastOneForce(List.of(affiliatedResourceDmp, affiliatedResourceDescription), Permission.EditLock);
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Boolean isUpdate = this.conventionService.isValidGuid(model.getId());
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LockEntity data;
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if (isUpdate) {
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data = this.entityManager.find(LockEntity.class, model.getId());
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if (data == null) throw new MyNotFoundException(messageSource.getMessage("General_ItemNotFound", new Object[]{model.getId(), Lock.class.getSimpleName()}, LocaleContextHolder.getLocale()));
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if (!data.getLockedBy().equals(this.userScope.getUserId())) throw new MyApplicationException("Is not locked by that user");
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if (!this.conventionService.hashValue(data.getTouchedAt()).equals(model.getHash())) throw new MyValidationException(this.errors.getHashConflict().getCode(), this.errors.getHashConflict().getMessage());
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} else {
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data = new LockEntity();
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data.setId(UUID.randomUUID());
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data.setLockedAt(Instant.now());
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data.setLockedBy(this.userScope.getUserId());
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}
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data.setTarget(model.getTarget());
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data.setTargetType(model.getTargetType());
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data.setTouchedAt(Instant.now());
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if (isUpdate) this.entityManager.merge(data);
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else this.entityManager.persist(data);
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this.entityManager.flush();
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return this.builderFactory.builder(LockBuilder.class).authorize(AuthorizationFlags.OwnerOrDmpAssociatedOrPermission).build(BaseFieldSet.build(fields, Lock._id), data);
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}
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public boolean isLocked(UUID target) throws InvalidApplicationException {
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LockQuery query = this.queryFactory.query(LockQuery.class).authorize(AuthorizationFlags.OwnerOrDmpAssociatedOrPermission).targetIds(target);
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if (query.count() == 1) {
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LockEntity lock = query.first();
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if (lock.getLockedBy().equals(this.userScope.getUserId())) {
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lock.setTouchedAt(Instant.now());
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this.entityManager.merge(lock);
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this.entityManager.flush();
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return false;
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}
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return this.forceUnlock(target) > 0;
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} else if (query.count() > 1) {
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this.forceUnlock(target);
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return this.isLocked(target);
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}
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return false;
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}
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private Long forceUnlock(UUID target) throws InvalidApplicationException {
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LockQuery query = this.queryFactory.query(LockQuery.class).authorize(AuthorizationFlags.OwnerOrDmpAssociatedOrPermission).targetIds(target);
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Long availableLocks = query.count();
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long deletedLocks = 0L;
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if (availableLocks > 0) {
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List<LockEntity> locks = query.collect();
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for (LockEntity lock : locks) {
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if (new Date().getTime() - Date.from(lock.getTouchedAt()).getTime() > 120000) {
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this.deleteAndSave(lock.getId());
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deletedLocks++;
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}
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}
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if (deletedLocks == 0) {
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LockEntity recentLock = locks.stream().max(compareByTouchedAt).get();
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for (LockEntity lock : locks) {
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if (lock != recentLock) {
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this.deleteAndSave(lock.getId());
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deletedLocks++;
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}
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}
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}
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}
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return availableLocks - deletedLocks;
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}
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public void unlock(UUID target) throws InvalidApplicationException {
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LockQuery query = this.queryFactory.query(LockQuery.class).authorize(AuthorizationFlags.OwnerOrDmpAssociatedOrPermission).targetIds(target);
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if (query.count() == 1) {
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LockEntity lock = query.first();
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if (!lock.getLockedBy().equals(this.userScope.getUserId())) {
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throw new InvalidApplicationException("Only the user who created that lock can delete it");
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}
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this.deleteAndSave(lock.getId());
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} else if (query.count() > 1) {
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List<LockEntity> locks = query.collect();
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locks.stream().filter(lock -> lock.getLockedBy().equals(this.userScope.getUserIdSafe())).forEach(lock -> {
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try {
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this.deleteAndSave(lock.getId());
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} catch (InvalidApplicationException e) {
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throw new RuntimeException(e);
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}
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});
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}
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}
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public void deleteAndSave(UUID id) throws MyForbiddenException, InvalidApplicationException {
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logger.debug("deleting : {}", id);
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AffiliatedResource affiliatedResourceDmp = this.authorizationContentResolver.dmpAffiliation(id);
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AffiliatedResource affiliatedResourceDescription = this.authorizationContentResolver.descriptionAffiliation(id);
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this.authorizationService.authorizeAtLeastOneForce(List.of(affiliatedResourceDmp, affiliatedResourceDescription), Permission.DeleteLock);
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this.deleterFactory.deleter(LockDeleter.class).deleteAndSaveByIds(List.of(id));
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}
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}
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