com.branded.holdings.qpc.repository.jdbc.JdbcOwnerRepositoryImpl.java Source code

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Here is the source code for com.branded.holdings.qpc.repository.jdbc.JdbcOwnerRepositoryImpl.java

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/*
 * Copyright 2002-2013 the original author or authors.
 *
 * Licensed 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
 *
 *      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 com.branded.holdings.qpc.repository.jdbc;

import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.sql.DataSource;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.dao.DataAccessException;
import org.springframework.dao.EmptyResultDataAccessException;
import org.springframework.jdbc.core.BeanPropertyRowMapper;
import org.springframework.jdbc.core.namedparam.BeanPropertySqlParameterSource;
import org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate;
import org.springframework.jdbc.core.simple.SimpleJdbcInsert;
import org.springframework.orm.ObjectRetrievalFailureException;
import org.springframework.stereotype.Repository;

import com.branded.holdings.qpc.model.Owner;
import com.branded.holdings.qpc.model.Pet;
import com.branded.holdings.qpc.model.PetType;
import com.branded.holdings.qpc.model.Visit;
import com.branded.holdings.qpc.repository.OwnerRepository;
import com.branded.holdings.qpc.repository.VisitRepository;
import com.branded.holdings.qpc.util.EntityUtils;

/**
 * A simple JDBC-based implementation of the {@link OwnerRepository} interface.
 *
 * @author Ken Krebs
 * @author Juergen Hoeller
 * @author Rob Harrop
 * @author Sam Brannen
 * @author Thomas Risberg
 * @author Mark Fisher
 */
@Repository
public class JdbcOwnerRepositoryImpl implements OwnerRepository {

    private VisitRepository visitRepository;

    private NamedParameterJdbcTemplate namedParameterJdbcTemplate;

    private SimpleJdbcInsert insertOwner;

    @Autowired
    public JdbcOwnerRepositoryImpl(DataSource dataSource, NamedParameterJdbcTemplate namedParameterJdbcTemplate,
            VisitRepository visitRepository) {

        this.insertOwner = new SimpleJdbcInsert(dataSource).withTableName("owners").usingGeneratedKeyColumns("id");

        this.namedParameterJdbcTemplate = new NamedParameterJdbcTemplate(dataSource);

        this.visitRepository = visitRepository;
    }

    /**
     * Loads {@link Owner Owners} from the data store by last name, returning all owners whose last name <i>starts</i> with
     * the given name; also loads the {@link Pet Pets} and {@link Visit Visits} for the corresponding owners, if not
     * already loaded.
     */
    @Override
    public Collection<Owner> findByLastName(String lastName) throws DataAccessException {
        Map<String, Object> params = new HashMap<String, Object>();
        params.put("lastName", lastName + "%");
        List<Owner> owners = this.namedParameterJdbcTemplate.query(
                "SELECT id, first_name, last_name, address, city, telephone FROM owners WHERE last_name like :lastName",
                params, BeanPropertyRowMapper.newInstance(Owner.class));
        loadOwnersPetsAndVisits(owners);
        return owners;
    }

    /**
     * Loads the {@link Owner} with the supplied <code>id</code>; also loads the {@link Pet Pets} and {@link Visit Visits}
     * for the corresponding owner, if not already loaded.
     */
    @Override
    public Owner findById(int id) throws DataAccessException {
        Owner owner;
        try {
            Map<String, Object> params = new HashMap<String, Object>();
            params.put("id", id);
            owner = this.namedParameterJdbcTemplate.queryForObject(
                    "SELECT id, first_name, last_name, address, city, telephone FROM owners WHERE id= :id", params,
                    BeanPropertyRowMapper.newInstance(Owner.class));
        } catch (EmptyResultDataAccessException ex) {
            throw new ObjectRetrievalFailureException(Owner.class, id);
        }
        loadPetsAndVisits(owner);
        return owner;
    }

    public void loadPetsAndVisits(final Owner owner) {
        Map<String, Object> params = new HashMap<String, Object>();
        params.put("id", owner.getId().intValue());
        final List<JdbcPet> pets = this.namedParameterJdbcTemplate.query(
                "SELECT id, name, birth_date, type_id, owner_id FROM pets WHERE owner_id=:id", params,
                new JdbcPetRowMapper());
        for (JdbcPet pet : pets) {
            owner.addPet(pet);
            pet.setType(EntityUtils.getById(getPetTypes(), PetType.class, pet.getTypeId()));
            List<Visit> visits = this.visitRepository.findByPetId(pet.getId());
            for (Visit visit : visits) {
                pet.addVisit(visit);
            }
        }
    }

    @Override
    public void save(Owner owner) throws DataAccessException {
        BeanPropertySqlParameterSource parameterSource = new BeanPropertySqlParameterSource(owner);
        if (owner.isNew()) {
            Number newKey = this.insertOwner.executeAndReturnKey(parameterSource);
            owner.setId(newKey.intValue());
        } else {
            this.namedParameterJdbcTemplate
                    .update("UPDATE owners SET first_name=:firstName, last_name=:lastName, address=:address, "
                            + "city=:city, telephone=:telephone WHERE id=:id", parameterSource);
        }
    }

    public Collection<PetType> getPetTypes() throws DataAccessException {
        return this.namedParameterJdbcTemplate.query("SELECT id, name FROM types ORDER BY name",
                new HashMap<String, Object>(), BeanPropertyRowMapper.newInstance(PetType.class));
    }

    /**
     * Loads the {@link Pet} and {@link Visit} data for the supplied {@link List} of {@link Owner Owners}.
     *
     * @param owners the list of owners for whom the pet and visit data should be loaded
     * @see #loadPetsAndVisits(Owner)
     */
    private void loadOwnersPetsAndVisits(List<Owner> owners) {
        for (Owner owner : owners) {
            loadPetsAndVisits(owner);
        }
    }

}