LightPIT: src/main/java/de/uapcore/lightpit/dao/postgres/PGVersionDao.java@c759c60507a2

     1 /*

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

     3  *

     4  * Copyright 2018 Mike Becker. All rights reserved.

     5  *

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

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

     8  *

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

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

    11  *

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

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

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

    15  *

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

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

    18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

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

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

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

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

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

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

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    29 package de.uapcore.lightpit.dao.postgres;

    31 import de.uapcore.lightpit.dao.VersionDao;

    32 import de.uapcore.lightpit.entities.Project;

    33 import de.uapcore.lightpit.entities.Version;

    34 import de.uapcore.lightpit.entities.VersionStatus;

    36 import java.sql.Connection;

    37 import java.sql.PreparedStatement;

    38 import java.sql.ResultSet;

    39 import java.sql.SQLException;

    40 import java.util.ArrayList;

    41 import java.util.List;

    42 import java.util.Objects;

    44 public final class PGVersionDao implements VersionDao {

    46     private final PreparedStatement insert, update, list, find;

    48     public PGVersionDao(Connection connection) throws SQLException {

    49         list = connection.prepareStatement(

    50                 "select id, project, name, ordinal, status " +

    51                         "from lpit_version " +

    52                         "where project = ? " +

    53                         "order by ordinal, name");

    55         find = connection.prepareStatement(

    56                 "select id, project, name, ordinal, status " +

    57                         "from lpit_version " +

    58                         "where id = ?");

    60         insert = connection.prepareStatement(

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

    62         );

    63         update = connection.prepareStatement(

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

    65         );

    66     }

    68     public Version mapColumns(ResultSet result) throws SQLException {

    69         final var version = new Version(result.getInt("id"), new Project(result.getInt("project")));

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

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

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

    73         return version;

    74     }

    76     @Override

    77     public void save(Version instance) throws SQLException {

    78         Objects.requireNonNull(instance.getName());

    79         Objects.requireNonNull(instance.getProject());

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

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

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

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

    84         insert.executeUpdate();

    85     }

    87     @Override

    88     public boolean update(Version instance) throws SQLException {

    89         Objects.requireNonNull(instance.getName());

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

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

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

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

    94         return update.executeUpdate() > 0;

    95     }

    97     @Override

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

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

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

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

   102             while (result.next()) {

   103                 versions.add(mapColumns(result));

   104             }

   105         }

   106         return versions;

   107     }

   109     @Override

   110     public Version find(int id) throws SQLException {

   111         find.setInt(1, id);

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

   113             if (result.next()) {

   114                 return mapColumns(result);

   115             } else {

   116                 return null;

   117             }

   118         }

   119     }

   120 }

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