org.apereo.portal.groups.pags.dao.jpa.JpaPersonAttributesGroupDefinitionDao.java Source code

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Here is the source code for org.apereo.portal.groups.pags.dao.jpa.JpaPersonAttributesGroupDefinitionDao.java

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/**
 * Licensed to Apereo under one or more contributor license
 * agreements. See the NOTICE file distributed with this work
 * for additional information regarding copyright ownership.
 * Apereo licenses this file to you under the Apache License,
 * Version 2.0 (the "License"); you may not use this file
 * except in compliance with the License.  You may obtain a
 * copy of the License at the following location:
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apereo.portal.groups.pags.dao.jpa;

import java.util.HashSet;
import java.util.Set;

import javax.persistence.EntityManager;
import javax.persistence.TypedQuery;
import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Join;
import javax.persistence.criteria.ParameterExpression;
import javax.persistence.criteria.Root;

import com.google.common.base.Function;

import org.apache.commons.lang.Validate;
import org.apereo.portal.groups.pags.dao.IPersonAttributesGroupDefinition;
import org.apereo.portal.groups.pags.dao.IPersonAttributesGroupDefinitionDao;
import org.apereo.portal.jpa.BasePortalJpaDao;
import org.springframework.stereotype.Repository;

/**
 * @author Shawn Connolly, sconnolly@unicon.net
 */
@Repository("personAttributesGroupDefinitionDao")
public class JpaPersonAttributesGroupDefinitionDao extends BasePortalJpaDao
        implements IPersonAttributesGroupDefinitionDao {

    private CriteriaQuery<PersonAttributesGroupDefinitionImpl> findAllDefinitionsQuery;
    private CriteriaQuery<PersonAttributesGroupDefinitionImpl> groupDefinitionByNameQuery;
    private CriteriaQuery<PersonAttributesGroupDefinitionImpl> parentGroupDefinitionsQuery;
    private ParameterExpression<String> nameParameter;

    @Override
    public void afterPropertiesSet() throws Exception {
        this.nameParameter = this.createParameterExpression(String.class, "name");

        this.findAllDefinitionsQuery = this.createCriteriaQuery(
                new Function<CriteriaBuilder, CriteriaQuery<PersonAttributesGroupDefinitionImpl>>() {
                    @Override
                    public CriteriaQuery<PersonAttributesGroupDefinitionImpl> apply(CriteriaBuilder cb) {
                        final CriteriaQuery<PersonAttributesGroupDefinitionImpl> criteriaQuery = cb
                                .createQuery(PersonAttributesGroupDefinitionImpl.class);
                        criteriaQuery.from(PersonAttributesGroupDefinitionImpl.class);
                        return criteriaQuery;
                    }
                });

        this.groupDefinitionByNameQuery = this.createCriteriaQuery(
                new Function<CriteriaBuilder, CriteriaQuery<PersonAttributesGroupDefinitionImpl>>() {
                    @Override
                    public CriteriaQuery<PersonAttributesGroupDefinitionImpl> apply(CriteriaBuilder cb) {
                        final CriteriaQuery<PersonAttributesGroupDefinitionImpl> criteriaQuery = cb
                                .createQuery(PersonAttributesGroupDefinitionImpl.class);
                        Root<PersonAttributesGroupDefinitionImpl> root = criteriaQuery
                                .from(PersonAttributesGroupDefinitionImpl.class);
                        criteriaQuery.select(root).where(cb.equal(root.get("name"), nameParameter));
                        return criteriaQuery;
                    }
                });

        this.parentGroupDefinitionsQuery = this.createCriteriaQuery(
                new Function<CriteriaBuilder, CriteriaQuery<PersonAttributesGroupDefinitionImpl>>() {
                    @Override
                    public CriteriaQuery<PersonAttributesGroupDefinitionImpl> apply(CriteriaBuilder cb) {
                        final CriteriaQuery<PersonAttributesGroupDefinitionImpl> criteriaQuery = cb
                                .createQuery(PersonAttributesGroupDefinitionImpl.class);
                        Root<PersonAttributesGroupDefinitionImpl> root = criteriaQuery
                                .from(PersonAttributesGroupDefinitionImpl.class);
                        Join<PersonAttributesGroupDefinitionImpl, PersonAttributesGroupDefinitionImpl> members = root
                                .join(PersonAttributesGroupDefinitionImpl_.members);
                        criteriaQuery.where(
                                cb.equal(members.get(PersonAttributesGroupDefinitionImpl_.name), nameParameter));
                        return criteriaQuery;
                    }
                });
    }

    @PortalTransactional
    @Override
    public IPersonAttributesGroupDefinition updatePersonAttributesGroupDefinition(
            IPersonAttributesGroupDefinition personAttributesGroupDefinition) {
        Validate.notNull(personAttributesGroupDefinition, "personAttributesGroupDefinition can not be null");

        final IPersonAttributesGroupDefinition persistentDefinition;
        final EntityManager entityManager = this.getEntityManager();
        if (entityManager.contains(personAttributesGroupDefinition)) {
            persistentDefinition = personAttributesGroupDefinition;
        } else {
            persistentDefinition = entityManager.merge(personAttributesGroupDefinition);
        }

        this.getEntityManager().persist(persistentDefinition);
        return persistentDefinition;
    }

    @PortalTransactional
    @Override
    public void deletePersonAttributesGroupDefinition(IPersonAttributesGroupDefinition definition) {
        Validate.notNull(definition, "definition can not be null");

        final IPersonAttributesGroupDefinition persistentDefinition;
        final EntityManager entityManager = this.getEntityManager();
        if (entityManager.contains(definition)) {
            persistentDefinition = definition;
        } else {
            persistentDefinition = entityManager.merge(definition);
        }
        entityManager.remove(persistentDefinition);
    }

    @PortalTransactionalReadOnly
    @Override
    public Set<IPersonAttributesGroupDefinition> getPersonAttributesGroupDefinitionByName(String name) {
        TypedQuery<PersonAttributesGroupDefinitionImpl> query = this.createCachedQuery(groupDefinitionByNameQuery);
        query.setParameter(nameParameter, name);
        Set<IPersonAttributesGroupDefinition> groups = new HashSet<IPersonAttributesGroupDefinition>(
                query.getResultList());
        if (groups.size() > 1) {
            logger.error("More than one PAGS Group found for name: {}", name);
        }
        return groups;
    }

    @PortalTransactionalReadOnly
    @Override
    public Set<IPersonAttributesGroupDefinition> getParentPersonAttributesGroupDefinitions(
            IPersonAttributesGroupDefinition group) {
        TypedQuery<PersonAttributesGroupDefinitionImpl> query = this.createCachedQuery(parentGroupDefinitionsQuery);
        query.setParameter(nameParameter, group.getName());
        Set<IPersonAttributesGroupDefinition> rslt = new HashSet<IPersonAttributesGroupDefinition>(
                query.getResultList());
        return rslt;
    }

    @PortalTransactionalReadOnly
    @Override
    public Set<IPersonAttributesGroupDefinition> getPersonAttributesGroupDefinitions() {
        final TypedQuery<PersonAttributesGroupDefinitionImpl> query = this
                .createCachedQuery(this.findAllDefinitionsQuery);
        Set<IPersonAttributesGroupDefinition> groups = new HashSet<IPersonAttributesGroupDefinition>(
                query.getResultList());
        return groups;
    }

    @PortalTransactional
    @Override
    public IPersonAttributesGroupDefinition createPersonAttributesGroupDefinition(String name, String description) {
        final IPersonAttributesGroupDefinition personAttributesGroupDefinition = new PersonAttributesGroupDefinitionImpl(
                name, description);

        this.getEntityManager().persist(personAttributesGroupDefinition);
        return personAttributesGroupDefinition;
    }

}