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Gyuchooljayjaehunchoi
Gyuchool
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jayjaehunchoi
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[Spring 지하철 노선도 - 1,2단계] 기론(김규철) 미션 제출합니다. (#191)
Co-authored-by: jayjaehunchoi <[email protected]> Co-authored-by: giron <[email protected]>
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‎README.md

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## 📝 License
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This project is [MIT](https://github.com/woowacourse/atdd-subway-map/blob/master/LICENSE) licensed.
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## 기능 구현 목록
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- 지하철 역
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- [x] 지하철역 생성 시 이미 등록된 이름으로 요청한다면 에러를 응답
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- 지하철 노선
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- [x] 동일한 노선 생성 불가
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- api
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- [x] post - /lines 등록 - name, color
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- [x] get - /lines - List - id, name, color
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- [ ] get - /lines/{id} - id, name, color
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- [ ] put - /lines/{id} - name, color
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- [ ] delete - /lines/{id}
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‎src/main/java/wooteco/subway/SubwayApplication.java

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@SpringBootApplication
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public class SubwayApplication {
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public static void main(String[] args) {
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SpringApplication.run(SubwayApplication.class, args);
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}
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public static void main(String[] args) {
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SpringApplication.run(SubwayApplication.class, args);
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}
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}

‎src/main/java/wooteco/subway/dao/LineRepository.java

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package wooteco.subway.dao;
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import wooteco.subway.domain.Line;
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import java.util.List;
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import java.util.Optional;
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public interface LineRepository {
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Line save(Line line);
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List<Line> findAll();
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Optional<Line> findById(Long id);
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Optional<Line> findByName(String name);
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void update(Long id, Line line);
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void deleteById(Long id);
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boolean existByName(String name);
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}

‎src/main/java/wooteco/subway/dao/LineRepositoryImpl.java

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package wooteco.subway.dao;
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import org.springframework.jdbc.core.RowMapper;
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import org.springframework.jdbc.core.namedparam.MapSqlParameterSource;
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import org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate;
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import org.springframework.jdbc.core.namedparam.SqlParameterSource;
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import org.springframework.jdbc.core.simple.SimpleJdbcInsert;
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import org.springframework.stereotype.Repository;
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import wooteco.subway.domain.Line;
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import javax.sql.DataSource;
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import java.util.List;
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import java.util.Optional;
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@Repository
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public class LineRepositoryImpl implements LineRepository {
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private final NamedParameterJdbcTemplate namedParameterJdbcTemplate;
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private final SimpleJdbcInsert simpleJdbcInsert;
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private RowMapper<Line> rowMapper() {
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return (resultSet, rowNum) -> {
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long id = resultSet.getLong("id");
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String name = resultSet.getString("name");
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String color = resultSet.getString("color");
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return new Line(id, name, color);
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};
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}
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public LineRepositoryImpl(DataSource dataSource) {
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this.namedParameterJdbcTemplate = new NamedParameterJdbcTemplate(dataSource);
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this.simpleJdbcInsert = new SimpleJdbcInsert(dataSource)
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.withTableName("line")
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.usingGeneratedKeyColumns("id");
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}
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@Override
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public Line save(final Line line) {
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SqlParameterSource parameters = new MapSqlParameterSource()
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.addValue("name", line.getName())
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.addValue("color", line.getColor());
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long id = simpleJdbcInsert.executeAndReturnKey(parameters).longValue();
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return new Line(id, line.getName(), line.getColor());
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}
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@Override
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public List<Line> findAll() {
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String sql = "SELECT * FROM line";
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return namedParameterJdbcTemplate.query(sql, rowMapper());
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}
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@Override
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public Optional<Line> findById(final Long id) {
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String sql = "SELECT * FROM line WHERE id = :id";
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SqlParameterSource parameters = new MapSqlParameterSource("id", id);
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List<Line> lines = namedParameterJdbcTemplate.query(sql, parameters, rowMapper());
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return getOptional(lines);
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}
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@Override
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public Optional<Line> findByName(final String name) {
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String sql = "SELECT * FROM line WHERE name = :name";
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SqlParameterSource parameters = new MapSqlParameterSource("name", name);
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List<Line> lines = namedParameterJdbcTemplate.query(sql, parameters, rowMapper());
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return getOptional(lines);
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}
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private Optional<Line> getOptional(List<Line> lines) {
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if (lines.isEmpty()) {
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return Optional.empty();
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}
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return Optional.ofNullable(lines.get(0));
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}
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@Override
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public void update(final Long id, final Line line) {
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String sql = "UPDATE line SET name = :name, color = :color WHERE id = :id";
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SqlParameterSource nameParameters = new MapSqlParameterSource()
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.addValue("id", id)
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.addValue("name", line.getName())
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.addValue("color", line.getColor());
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namedParameterJdbcTemplate.update(sql, nameParameters);
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}
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@Override
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public void deleteById(Long id) {
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String sql = "DELETE FROM line WHERE id = :id";
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SqlParameterSource parameters = new MapSqlParameterSource("id", id);
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namedParameterJdbcTemplate.update(sql, parameters);
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}
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@Override
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public boolean existByName(String name) {
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final String sql = "SELECT COUNT(*) FROM line WHERE name = :name";
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SqlParameterSource parameters = new MapSqlParameterSource("name", name);
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Integer count = namedParameterJdbcTemplate.queryForObject(sql, parameters, Integer.class);
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return count != 0;
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}
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}

‎src/main/java/wooteco/subway/dao/StationDao.java

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‎src/main/java/wooteco/subway/dao/StationRepository.java

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package wooteco.subway.dao;
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import wooteco.subway.domain.Station;
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import java.util.List;
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import java.util.Optional;
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public interface StationRepository {
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Station save(final Station station);
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List<Station> findAll();
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void deleteById(Long id);
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Optional<Station> findByName(String name);
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Optional<Station> findById(Long id);
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boolean existByName(String name);
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}

‎src/main/java/wooteco/subway/dao/StationRepositoryImpl.java

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package wooteco.subway.dao;
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import org.springframework.jdbc.core.RowMapper;
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import org.springframework.jdbc.core.namedparam.MapSqlParameterSource;
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import org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate;
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import org.springframework.jdbc.core.namedparam.SqlParameterSource;
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import org.springframework.jdbc.core.simple.SimpleJdbcInsert;
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import org.springframework.stereotype.Repository;
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import wooteco.subway.domain.Station;
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import javax.sql.DataSource;
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import java.util.List;
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import java.util.Optional;
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@Repository
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public class StationRepositoryImpl implements StationRepository {
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private final NamedParameterJdbcTemplate namedParameterJdbcTemplate;
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private final SimpleJdbcInsert simpleJdbcInsert;
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private RowMapper<Station> rowMapper() {
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return (resultSet, rowNum) -> {
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long id = resultSet.getLong("id");
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String name = resultSet.getString("name");
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return new Station(id, name);
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};
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}
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public StationRepositoryImpl(DataSource dataSource) {
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this.namedParameterJdbcTemplate = new NamedParameterJdbcTemplate(dataSource);
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this.simpleJdbcInsert = new SimpleJdbcInsert(dataSource)
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.withTableName("station")
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.usingGeneratedKeyColumns("id");
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}
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@Override
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public Station save(final Station station) {
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SqlParameterSource parameters = new MapSqlParameterSource()
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.addValue("name", station.getName());
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Long id = simpleJdbcInsert.executeAndReturnKey(parameters).longValue();
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return new Station(id, station.getName());
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}
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@Override
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public List<Station> findAll() {
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String sql = "SELECT * FROM station";
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RowMapper<Station> stationRowMapper = rowMapper();
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return namedParameterJdbcTemplate.query(sql, stationRowMapper);
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}
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@Override
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public void deleteById(final Long id) {
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String sql = "DELETE FROM station WHERE id = :id";
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namedParameterJdbcTemplate.update(sql, new MapSqlParameterSource("id", id));
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}
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@Override
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public Optional<Station> findByName(final String name) {
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String sql = "SELECT * FROM station WHERE name = :name";
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SqlParameterSource parameters = new MapSqlParameterSource("name", name);
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List<Station> stations = namedParameterJdbcTemplate.query(sql, parameters, rowMapper());
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return getOptional(stations);
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}
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@Override
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public Optional<Station> findById(Long id) {
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String sql = "SELECT * FROM station WHERE id = :id";
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SqlParameterSource parameters = new MapSqlParameterSource("id", id);
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List<Station> stations = namedParameterJdbcTemplate.query(sql, parameters, rowMapper());
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return getOptional(stations);
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}
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private Optional<Station> getOptional(List<Station> stations) {
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if (stations.isEmpty()) {
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return Optional.empty();
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}
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return Optional.ofNullable(stations.get(0));
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}
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@Override
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public boolean existByName(String name) {
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final String sql = "SELECT COUNT(*) FROM station WHERE name = :name";
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SqlParameterSource parameters = new MapSqlParameterSource("name", name);
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Integer count = namedParameterJdbcTemplate.queryForObject(sql, parameters, Integer.class);
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return count != 0;
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}
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}

‎src/main/java/wooteco/subway/domain/Line.java

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package wooteco.subway.domain;
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import java.util.Objects;
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public class Line {
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private final Long id;
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private final String name;
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private final String color;
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public Line(String name, String color) {
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this(null, name, color);
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}
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public Line(Long id, String name, String color) {
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this.id = id;
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this.name = name;
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this.color = color;
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}
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public Long getId() {
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return id;
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}
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public String getName() {
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return name;
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}
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public String getColor() {
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return color;
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}
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@Override
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public boolean equals(Object o) {
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if (this == o) return true;
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if (o == null || getClass() != o.getClass()) return false;
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Line line = (Line) o;
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return Objects.equals(name, line.name);
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}
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@Override
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public int hashCode() {
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return Objects.hash(name);
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}
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}

‎src/main/java/wooteco/subway/domain/Station.java

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package wooteco.subway.domain;
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import java.util.Objects;
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public class Station {
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private Long id;
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private String name;
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private final Long id;
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private final String name;
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public Station() {
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public Station(String name) {
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this(null, name);
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}
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public Station(Long id, String name) {
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this.id = id;
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this.name = name;
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}
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public Station(String name) {
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this.name = name;
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}
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public Long getId() {
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return id;
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}
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public String getName() {
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return name;
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}
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@Override
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public boolean equals(Object o) {
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if (this == o) return true;
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if (o == null || getClass() != o.getClass()) return false;
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Station station = (Station) o;
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return Objects.equals(name, station.name);
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}
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@Override
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public int hashCode() {
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return Objects.hash(name);
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}
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}
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