81 lines
2.9 KiB
Java
81 lines
2.9 KiB
Java
package de.hsadmin.mods.db;
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import java.util.List;
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import javax.persistence.EntityManager;
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import javax.persistence.Query;
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import de.hsadmin.core.model.AbstractEntity;
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import de.hsadmin.core.model.AbstractModuleImpl;
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import de.hsadmin.core.model.AuthorisationException;
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import de.hsadmin.core.model.HSAdminException;
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import de.hsadmin.core.model.Transaction;
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import de.hsadmin.mods.pac.Pac;
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import de.hsadmin.mods.user.UnixUser;
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public class MySqlDatabaseModuleImpl extends AbstractModuleImpl {
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@Override
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public List<AbstractEntity> search(Class<? extends AbstractEntity> entityClass,
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String condition, String orderBy) throws HSAdminException {
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if (orderBy == null || orderBy.length() == 0) {
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orderBy = "ORDER BY obj.name ASC";
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}
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return super.search(entityClass, condition, orderBy);
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}
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@Override
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public AbstractEntity add(AbstractEntity newEntity) throws HSAdminException {
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Transaction transaction = getTransaction();
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UnixUser loginUser = transaction.getLoginUser();
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MySqlDatabase database = (MySqlDatabase) newEntity;
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String name = database.getName();
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String pacPrefix = name.substring(0, 5);
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if (name.length() < 7 || name.charAt(5) != '_') {
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throw new AuthorisationException(loginUser, "add", newEntity);
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}
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String owner = database.getOwner();
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if (owner == null || name.length() < 7 || name.charAt(5) != '_') {
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if (name.length() != 5) {
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throw new HSAdminException("database owner required");
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}
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}
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if (!owner.startsWith(pacPrefix)) {
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throw new HSAdminException("wrong database owner");
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}
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EntityManager em = getTransaction().getEntityManager();
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Query qPac = em.createQuery("SELECT obj FROM Pacs obj WHERE obj.name = :pacName");
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qPac.setParameter("pacName", pacPrefix);
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Object singleResult = qPac.getSingleResult();
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Pac pac = (Pac) singleResult;
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if (pac == null || !pac.isReadAllowedFor(loginUser)) {
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throw new AuthorisationException(loginUser, "add", newEntity);
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}
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if (!pac.getName().equals(pacPrefix)) {
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throw new HSAdminException("wrong database owner");
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}
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database.setPac(pac);
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return super.add(newEntity);
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}
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@Override
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public AbstractEntity update(AbstractEntity existingEntity) throws HSAdminException {
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Transaction transaction = getTransaction();
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EntityManager em = transaction.getEntityManager();
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UnixUser unixUser = transaction.getLoginUser();
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MySqlDatabase detachtedDB = (MySqlDatabase) existingEntity;
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MySqlDatabase attachedDB = em.find(MySqlDatabase.class, detachtedDB.getId());
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if (!attachedDB.getName().equals(detachtedDB.getName())) {
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throw new AuthorisationException(unixUser, "update", existingEntity, "name");
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}
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if (!attachedDB.getEncoding().equals(detachtedDB.getEncoding())) {
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throw new AuthorisationException(unixUser, "update", existingEntity, "encoding");
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}
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if (!attachedDB.getInstance().equals(detachtedDB.getInstance())) {
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throw new AuthorisationException(unixUser, "update", existingEntity, "instance");
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}
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return super.update(existingEntity);
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}
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}
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