org.mycore.backend.jpa.access.MCRJPAAccessStore Maven / Gradle / Ivy
/*
* This file is part of *** M y C o R e ***
* See http://www.mycore.de/ for details.
*
* MyCoRe is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* MyCoRe is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with MyCoRe. If not, see query = cb.createQuery(String.class);
Root ac = query.from(MCRACCESS.class);
try {
return em.createQuery(
query.select(ac.get(MCRACCESS_.rule).get(MCRACCESSRULE_.rid))
.where(cb.equal(ac.get(MCRACCESS_.key).get(MCRACCESSPK_.objid), objID),
cb.equal(ac.get(MCRACCESS_.key).get(MCRACCESSPK_.acpool), acPool)))
.getSingleResult();
} catch (NoResultException e) {
return null;
}
}
/**
* method creates a new AccessDefinition in db
*
* @param rulemapping
* with values
*/
@Override
public void createAccessDefinition(MCRRuleMapping rulemapping) {
if (!existAccessDefinition(rulemapping.getPool(), rulemapping.getObjId())) {
Session session = MCRHIBConnection.instance().getSession();
MCRACCESSRULE accessRule = getAccessRule(rulemapping.getRuleId());
if (accessRule == null) {
throw new NullPointerException("Cannot map a null rule.");
}
MCRACCESS accdef = new MCRACCESS();
accdef.setKey(new MCRACCESSPK(rulemapping.getPool(), rulemapping.getObjId()));
accdef.setRule(accessRule);
accdef.setCreator(rulemapping.getCreator());
accdef.setCreationdate(Timestamp.valueOf(dateFormat.format(rulemapping.getCreationdate())));
session.save(accdef);
}
}
/**
* internal helper method to check existance of object
*/
private boolean existAccessDefinition(String pool, String objid) {
MCRACCESSPK key = new MCRACCESSPK(pool, objid);
return MCREntityManagerProvider.getCurrentEntityManager().find(MCRACCESS.class, key) != null;
}
@Override
public boolean existsRule(String objid, String pool) {
if (objid == null || objid.equals("")) {
LOGGER.warn("empty parameter objid in existsRule");
return false;
}
try {
return getRuleID(objid, pool) != null;
} catch (NoResultException e) {
return false;
}
}
/**
* delete given definition in db
*
* @param rulemapping
* rule to be deleted
*/
@Override
public void deleteAccessDefinition(MCRRuleMapping rulemapping) {
Session session = MCRHIBConnection.instance().getSession();
session.createQuery(
"delete MCRACCESS " + "where ACPOOL = '" + rulemapping.getPool() + "'" + " AND OBJID = '"
+ rulemapping.getObjId() + "'")
.executeUpdate();
}
/**
* update AccessDefinition in db for given MCRAccessData
*/
@Override
public void updateAccessDefinition(MCRRuleMapping rulemapping) {
Session session = MCRHIBConnection.instance().getSession();
MCRACCESSRULE accessRule = getAccessRule(rulemapping.getRuleId());
if (accessRule == null) {
throw new NullPointerException("Cannot map a null rule.");
}
// update
MCRACCESS accdef = session.get(MCRACCESS.class,
new MCRACCESSPK(rulemapping.getPool(), rulemapping.getObjId()));
accdef.setRule(accessRule);
accdef.setCreator(rulemapping.getCreator());
accdef.setCreationdate(Timestamp.valueOf(dateFormat.format(rulemapping.getCreationdate())));
session.update(accdef);
}
/**
* method returns AccessDefinition for given key values
*
* @param pool
* name of accesspool
* @param objid
* objectid of MCRObject
* @return MCRAccessData
*/
@Override
public MCRRuleMapping getAccessDefinition(String pool, String objid) {
EntityManager em = MCREntityManagerProvider.getCurrentEntityManager();
CriteriaBuilder cb = em.getCriteriaBuilder();
CriteriaQuery query = cb.createQuery(MCRACCESS.class);
Root root = query.from(MCRACCESS.class);
MCRRuleMapping rulemapping = new MCRRuleMapping();
try {
MCRACCESS data = em
.createQuery(query.where(cb.equal(root.get(MCRACCESS_.key), new MCRACCESSPK(pool, objid))))
.getSingleResult();
rulemapping.setCreationdate(data.getCreationdate());
rulemapping.setCreator(data.getCreator());
rulemapping.setObjId(data.getKey().getObjid());
rulemapping.setPool(data.getKey().getAcpool());
rulemapping.setRuleId(data.getRule().getRid());
em.detach(data);
} catch (NoResultException e) {
//returning empty rulemapping is fine
}
return rulemapping;
}
@Override
public ArrayList getMappedObjectId(String pool) {
Session session = MCRHIBConnection.instance().getSession();
List l = session.createQuery("from MCRACCESS where ACPOOL = '" + pool + "'", MCRACCESS.class)
.getResultList();
return l.stream()
.map(aL -> aL.getKey().getObjid())
.collect(Collectors.toCollection(ArrayList::new));
}
@Override
public ArrayList getPoolsForObject(String objid) {
Session session = MCRHIBConnection.instance().getSession();
List l = session.createQuery("from MCRACCESS where OBJID = '" + objid + "'", MCRACCESS.class)
.getResultList();
return l.stream()
.map(access -> access.getKey().getAcpool())
.collect(Collectors.toCollection(ArrayList::new));
}
@Override
public ArrayList getDatabasePools() {
EntityManager em = MCREntityManagerProvider.getCurrentEntityManager();
CriteriaQuery query = em.getCriteriaBuilder().createQuery(MCRACCESS.class);
return em.createQuery(query.select(query.from(MCRACCESS.class)))
.getResultList()
.stream()
.map(MCRACCESS::getKey)
.map(MCRACCESSPK::getAcpool)
.distinct()
.collect(Collectors.toCollection(ArrayList::new));
}
@Override
public List getDistinctStringIDs() {
EntityManager em = MCREntityManagerProvider.getCurrentEntityManager();
CriteriaBuilder cb = em.getCriteriaBuilder();
CriteriaQuery query = cb.createQuery(String.class);
Path selection = query.from(MCRACCESS.class).get(MCRACCESS_.key).get(MCRACCESSPK_.objid);
return em.createQuery(query.select(selection).distinct(true).orderBy(cb.asc(selection))).getResultList();
}
/**
* Checks if a rule mappings uses the rule.
*
* @param ruleid the rule id to check
* @return true if the rule exists and is used, otherwise false
*/
@Override
public boolean isRuleInUse(String ruleid) {
Session session = MCRHIBConnection.instance().getSession();
Query query = session
.createQuery("from MCRACCESS as accdef where accdef.rule.rid = '" + ruleid + "'", MCRACCESS.class);
return !query.getResultList().isEmpty();
}
private static MCRACCESSRULE getAccessRule(String rid) {
Session session = MCRHIBConnection.instance().getSession();
return session.get(MCRACCESSRULE.class, rid);
}
}