SHA256
10 12 25
Добавил таблицы для геолокации
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@@ -0,0 +1,99 @@
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package shine.db.dao;
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import shine.db.SqliteDbController;
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import shine.db.entities.IpGeoCacheEntry;
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import java.sql.*;
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/**
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* DAO для таблицы ip_geo_cache.
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*
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* Таблица:
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* - ip TEXT PRIMARY KEY
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* - geo TEXT
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* - updated_at_ms INTEGER NOT NULL
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*/
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public final class IpGeoCacheDAO {
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private static volatile IpGeoCacheDAO instance;
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private final SqliteDbController db = SqliteDbController.getInstance();
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private IpGeoCacheDAO() {
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}
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public static IpGeoCacheDAO getInstance() {
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if (instance == null) {
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synchronized (IpGeoCacheDAO.class) {
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if (instance == null) {
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instance = new IpGeoCacheDAO();
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}
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}
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}
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return instance;
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}
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/**
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* UPSERT по ip.
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* Если записи нет — вставляем.
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* Если есть — обновляем geo и updated_at_ms.
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*/
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public void upsert(IpGeoCacheEntry entry) throws SQLException {
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String sql = """
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INSERT INTO ip_geo_cache (ip, geo, updated_at_ms)
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VALUES (?, ?, ?)
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ON CONFLICT(ip)
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DO UPDATE SET
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geo = excluded.geo,
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updated_at_ms = excluded.updated_at_ms
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""";
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try (PreparedStatement ps = db.getConnection().prepareStatement(sql)) {
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ps.setString(1, entry.getIp());
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ps.setString(2, entry.getGeo());
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ps.setLong(3, entry.getUpdatedAtMs());
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ps.executeUpdate();
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}
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}
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/**
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* Получить запись по IP.
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* Если нет — возвращает null.
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*/
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public IpGeoCacheEntry getByIp(String ip) throws SQLException {
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String sql = """
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SELECT ip, geo, updated_at_ms
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FROM ip_geo_cache
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WHERE ip = ?
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""";
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try (PreparedStatement ps = db.getConnection().prepareStatement(sql)) {
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ps.setString(1, ip);
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try (ResultSet rs = ps.executeQuery()) {
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if (!rs.next()) {
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return null;
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}
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return mapRow(rs);
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}
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}
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}
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/**
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* Опционально — очистка старых записей.
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* Можно вызывать по расписанию, если нужно.
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*/
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public int deleteOlderThan(long thresholdMs) throws SQLException {
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String sql = "DELETE FROM ip_geo_cache WHERE updated_at_ms < ?";
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try (PreparedStatement ps = db.getConnection().prepareStatement(sql)) {
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ps.setLong(1, thresholdMs);
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return ps.executeUpdate();
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}
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}
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private IpGeoCacheEntry mapRow(ResultSet rs) throws SQLException {
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String ip = rs.getString("ip");
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String geo = rs.getString("geo");
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long updatedAtMs = rs.getLong("updated_at_ms");
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return new IpGeoCacheEntry(ip, geo, updatedAtMs);
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}
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}
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