Mercurial > hg > LightPIT / file revision

 /*

  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

  *

  * Copyright 2018 Mike Becker. All rights reserved.

  *

  * Redistribution and use in source and binary forms, with or without

  * modification, are permitted provided that the following conditions are met:

  *

  *   1. Redistributions of source code must retain the above copyright

  *      notice, this list of conditions and the following disclaimer.

  *

  *   2. Redistributions in binary form must reproduce the above copyright

  *      notice, this list of conditions and the following disclaimer in the

  *      documentation and/or other materials provided with the distribution.

  *

  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE

  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

  * POSSIBILITY OF SUCH DAMAGE.

  *

  */

 package de.uapcore.lightpit.dao.postgres;

 import de.uapcore.lightpit.dao.VersionDao;

 import de.uapcore.lightpit.entities.Project;

 import de.uapcore.lightpit.entities.Version;

 import de.uapcore.lightpit.entities.VersionStatus;

 import java.sql.Connection;

 import java.sql.PreparedStatement;

 import java.sql.ResultSet;

 import java.sql.SQLException;

 import java.util.ArrayList;

 import java.util.List;

 import java.util.Objects;

 public final class PGVersionDao implements VersionDao {

     private final PreparedStatement insert, update, list, find;

     public PGVersionDao(Connection connection) throws SQLException {

         list = connection.prepareStatement(

                 "select versionid, project, p.name as projectname, v.name, ordinal, status " +

                         "from lpit_version v " +

                         "join lpit_project p on v.project = p.projectid " +

                         "where project = ? " +

                         "order by ordinal desc, lower(v.name) desc");

         find = connection.prepareStatement(

                 "select versionid, project, p.name as projectname, v.name, ordinal, status " +

                         "from lpit_version  v " +

                         "join lpit_project p on v.project = p.projectid " +

                         "where versionid = ?");

         insert = connection.prepareStatement(

                 "insert into lpit_version (project, name, ordinal, status) values (?, ?, ?, ?::version_status)"

         );

         update = connection.prepareStatement(

                 "update lpit_version set name = ?, ordinal = ?, status = ?::version_status where versionid = ?"

         );

     }

     private Version mapColumns(ResultSet result) throws SQLException {

         final var project = new Project(result.getInt("project"));

         project.setName(result.getString("projectname"));

         final var version = new Version(result.getInt("versionid"));

         version.setProject(project);

         version.setName(result.getString("name"));

         version.setOrdinal(result.getInt("ordinal"));

         version.setStatus(VersionStatus.valueOf(result.getString("status")));

         return version;

     }

     @Override

     public void save(Version instance) throws SQLException {

         Objects.requireNonNull(instance.getName());

         Objects.requireNonNull(instance.getProject());

         insert.setInt(1, instance.getProject().getId());

         insert.setString(2, instance.getName());

         insert.setInt(3, instance.getOrdinal());

         insert.setString(4, instance.getStatus().name());

         insert.executeUpdate();

     }

     @Override

     public boolean update(Version instance) throws SQLException {

         if (instance.getId() < 0) return false;

         Objects.requireNonNull(instance.getName());

         update.setString(1, instance.getName());

         update.setInt(2, instance.getOrdinal());

         update.setString(3, instance.getStatus().name());

         update.setInt(4, instance.getId());

         return update.executeUpdate() > 0;

     }

     @Override

     public List<Version> list(Project project) throws SQLException {

         list.setInt(1, project.getId());

         List<Version> versions = new ArrayList<>();

         try (var result = list.executeQuery()) {

             while (result.next()) {

                 final var v = mapColumns(result);

                 v.setProject(project);

                 versions.add(v);

             }

         }

         return versions;

     }

     @Override

     public Version find(int id) throws SQLException {

         find.setInt(1, id);

         try (var result = find.executeQuery()) {

             if (result.next()) {

                 return mapColumns(result);

             } else {

                 return null;

             }

         }

     }

 }