Mercurial > hg > LightPIT / file revision

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  * Copyright 2018 Mike Becker. All rights reserved.

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 package de.uapcore.lightpit.dao.postgres;

 import de.uapcore.lightpit.dao.IssueDao;

 import de.uapcore.lightpit.entities.*;

 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;

 import static de.uapcore.lightpit.dao.Functions.*;

 public final class PGIssueDao implements IssueDao {

     private final PreparedStatement insert, update, list, find;

     public PGIssueDao(Connection connection) throws SQLException {

         list = connection.prepareStatement(

                 "select issue.id, issue.project, issue.status, issue.category, issue.subject, issue.description, " +

                         "vplan.id, vplan.name, vdone.id, vdone.name, " +

                         "issue.created, issue.updated, issue.eta " +

                         "from lpit_issue issue " +

                         "left join lpit_version vplan on vplan.id = version_plan " +

                         "left join lpit_version vdone on vdone.id = version_done " +

                         "where issue.project = ? ");

         find = connection.prepareStatement(

                 "select issue.id, issue.project, issue.status, issue.category, issue.subject, issue.description, " +

                         "vplan.id, vplan.name, vdone.id, vdone.name, " +

                         "issue.created, issue.updated, issue.eta " +

                         "from lpit_issue issue " +

                         "left join lpit_version vplan on vplan.id = version_plan " +

                         "left join lpit_version vdone on vdone.id = version_done " +

                         "where issue.id = ? ");

         insert = connection.prepareStatement(

                 "insert into lpit_issue (project, status, category, subject, description, version_plan, version_done, eta) " +

                         "values (?, ?::issue_status, ?::issue_category, ?, ?, ?, ?, ?)"

         );

         update = connection.prepareStatement(

                 "update lpit_issue set updated = now(), status = ?::issue_status, category = ?::issue_category, " +

                         "subject = ?, description = ?, version_plan = ?, version_done = ?, eta = ? where id = ?"

         );

     }

     private Version obtainVersion(ResultSet result, Project project, String prefix) throws SQLException {

         final int vplan = result.getInt(prefix+"id");

         if (vplan > 0) {

             final var ver = new Version(vplan, project);

             ver.setName(result.getString(prefix+"name"));

             return ver;

         } else {

             return null;

         }

     }

     public Issue mapColumns(ResultSet result) throws SQLException {

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

         final var issue = new Issue(result.getInt("issue.id"), project);

         issue.setStatus(IssueStatus.valueOf(result.getString("issue.status")));

         issue.setCategory(IssueCategory.valueOf(result.getString("issue.category")));

         issue.setSubject(result.getString("issue.subject"));

         issue.setDescription(result.getString("issue.description"));

         issue.setScheduledVersion(obtainVersion(result, project, "vplan."));

         issue.setResolvedVersion(obtainVersion(result, project, "vdone."));

         issue.setCreated(result.getTimestamp("issue.created"));

         issue.setUpdated(result.getTimestamp("issue.updated"));

         issue.setEta(result.getDate("issue.eta"));

         return issue;

     }

     @Override

     public void save(Issue instance) throws SQLException {

         Objects.requireNonNull(instance.getSubject());

         Objects.requireNonNull(instance.getProject());

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

         insert.setString(2, instance.getStatus().name());

         insert.setString(3, instance.getCategory().name());

         insert.setString(4, instance.getSubject());

         setStringOrNull(insert, 5, instance.getDescription());

         setForeignKeyOrNull(insert, 6, instance.getScheduledVersion(), Version::getId);

         setForeignKeyOrNull(insert, 7, instance.getResolvedVersion(), Version::getId);

         setDateOrNull(insert, 8, instance.getEta());

         insert.executeUpdate();

     }

     @Override

     public boolean update(Issue instance) throws SQLException {

         Objects.requireNonNull(instance.getSubject());

         update.setString(1, instance.getStatus().name());

         update.setString(2, instance.getCategory().name());

         update.setString(3, instance.getSubject());

         setStringOrNull(update, 4, instance.getDescription());

         setForeignKeyOrNull(update, 5, instance.getScheduledVersion(), Version::getId);

         setForeignKeyOrNull(update, 6, instance.getResolvedVersion(), Version::getId);

         setDateOrNull(update, 7, instance.getEta());

         update.setInt(8, instance.getId());

         return update.executeUpdate() > 0;

     }

     @Override

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

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

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

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

             while (result.next()) {

                 versions.add(mapColumns(result));

             }

         }

         return versions;

     }

     @Override

     public Issue find(int id) throws SQLException {

         find.setInt(1, id);

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

             if (result.next()) {

                 return mapColumns(result);

             } else {

                 return null;

             }

         }

     }

 }