Thursday, June 3, 2021

AWS how to delete VPC when it has error with Network interface , Gateway decencies

 

 how to delete VPC when it has error with Network interface , Gateway decencies  in AWS

1. Check if it is running on EC2 instance then Stop / Terminate that first

2.  Deassociate Elastic IP

3. Detach and delete NAT gateway

4. Detach and Delete Internet gateway

5. Delete security group (optional)

Back to delete VPC again 










Tuesday, March 16, 2021

Hibernate 3 to 5 migration


 Hibernate 3 to 5 migration 

Some notes and tips:

 by Pseudo code below


1.       1.       Typical current code  

 

getCurrentSession().createCriteria(BT.class)

                                                                .add(Restrictions.eq("replacedBT", replaced))

                                                                .addOD(OD.desc("id")).list();

 

Will be replaced by

 

CriteriaQuery<BT> criteriaQuery = getCurrentSession().getCriteriaBuilder().createQuery(BT.class);

Root<BT> root = criteriaQuery.from(BT.class);

CriteriaBuilder cb = getCurrentSession().getCriteriaBuilder();

criteriaQuery.select(root).where(getCurrentSession().getCriteriaBuilder().equal(root.get("replacedBT"), replaced));

criteriaQuery.ODBy(cb.desc(root.get("id")));

 

 

2.       Mapping

 

 

Hibernate

JPA

1

setResultTransformer(Criteria.DISTINCT_ROOT_ENTITY)

criteriaQuery.select(root).distinct(true)

2

setProjection(Property.forName("id")

criteriaQuery.multiselect(root.get("id"))

 

 

 

3

Disjunction

CriteriaBuilder  disjunction();

Ex:

Predicate predicate = cb.disjunction();

predicate.getExpressions().add(cb.isNull(root.get("effectiveEndDate")));

predicate.getExpressions().add(cb.greaterThanOrEqualTo(root.get("effectiveEndDate"), DateUtil.getLienDateForTestY(testY.intValue())));

4

Criterion

predicate.getExpressions().add(

5

Restrictions.in ("testY", Ys)

root.get("testY").in(Ys)

 

 

 

6

Restrictions.le

lessThanOrEqualTo

7

Restrictions.ilike   - case insensitive

cb.like(cb.lower(root.get("assesseeName")), "%"+name.trim().toLowerCase() + "%"

8

Build list of conditions many if else

List<Predicate> predicates = new ArrayList<>();

                                                        predicates.add(join.get("testId").in(oidSub));

                                                        predicates.add(cbSub.notEqual(rootBT.get("pmStatus"), BTPmStatus.paidStatus));

                                                        predicates.add(cbSub.notEqual(rootBT.get("status"), TestBTStatus.canceled));

                                                        predicates.add(cbSub.notEqual(rootBT.get("status"), TestBTStatus.purged));

                                                        predicates.add(cbSub.notEqual(rootBT.get("status"), TestBTStatus.rolledToUnsecured ));

9

Join

 

                                                BTCrit.createCriteria("testCharges","chg");

                                                BTCrit.add (Restrictions.in("chg.testId", oidSub) );

                                                Join<BT, Charge> join = rootBT.join("testCharges", JoinType.INNER);

                                                criteriaQueryBT.select(rootBT).where(join.get("testId").in(oids),

                                                                                                                                                                                                                 cbBT.equal(rootBT.get("testY"), testY),

                                                                                                                                                                                                                 rootBT.get("BTType").in(types)  );

10

Multiple Join

 

                                List<JTestOD> chains =

                                    getCurrentSession()

                                    .createCriteria(JTestOD.class)

                                .add(Restrictions.not(Restrictions.eq("state", JTestODState.open)))

                                .createCriteria("traTranss")

                                .createCriteria("JTransProperties")

           .add(Restrictions.eq("id.apn",prop.getPropertyId()))            .add(Restrictions.eq("propertyAvTestY",prop.getTestY()))

//           .add(Restrictions.eq("chainedToTestOD", co))

//                            .setResultTransformer(Criteria.DISTINCT_ROOT_ENTITY)

//                            .list();

                CriteriaQuery<JTestOD> criteriaQuery = getCurrentSession().getCriteriaBuilder().createQuery(JTestOD.class);

        CriteriaBuilder cb = getCurrentSession().getCriteriaBuilder();

        Root<JTestOD> root = criteriaQuery.from(JTestOD.class);

       

        Join<JTestOD, JTraTrans> join = root.join("traTranss", JoinType.INNER);

        Join<JTraTrans, JTransProperty> join2 = join.join("JTransProperties", JoinType.INNER);

        

        criteriaQuery.select(root).distinct(true) .where(

                               cb.notEqual(root.get("state"), JTestODState.open),

                               cb .equal(join2.get("id").get("apn"), prop.getPropertyId()),

                               cb.equal(join2.get("propertyAvTestY"), prop.getTestY()),

                               cb .equal(join2.get("chainedToTestOD"), co));

       

        List<JTestOD> chains  = getCurrentSession().createQuery(criteriaQuery).getResultList();

 

Hibernate 3 to Hibernate 5 migration

Hibernate 3 to Hibernate 5 migration  Tips and Steps


Package name changes


org.hibernate.internal.ThreadLocalSessionContext->org.hibernate.context.internal.ThreadLocalSessionContext
org.hibernate.connection.ConnectionProvider --> org.hibernate.engine.jdbc.connections.spi.ConnectionProvider
org.hibernate.cfg.AnnotationConfiguration -> org.hibernate.cfg.Configuration
org.hibernate.event.PostLoadEvent -> org.hibernate.event.spi.PostLoadEvent
org.hibernate.event.def.DefaultPostLoadEventListener -> org.hibernate.event.internal.DefaultPostLoadEventListener

Friday, March 8, 2019

Multiple authentication mechanism chaining in OAM: Card 2FA authentication

Multiple authentication mechanism chaining in OAM: Card 2FA authentication

http://www.ateam-oracle.com/multiple-authentication-mechanism-chaining-in-oam/

AWS how to delete VPC when it has error with Network interface , Gateway decencies

   how to delete VPC when it has error with Network interface , Gateway decencies  in AWS 1. Check if it is running on EC2 instance then Sto...