New SQL API + SchemByUserAndType speedup
Dieser Commit ist enthalten in:
Ursprung
6a3d82bc1d
Commit
6d20b7bb2a
@ -71,7 +71,7 @@ public class Core extends JavaPlugin{
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@Override
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public void onDisable(){
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SQL.closeConnection();
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SQL.close();
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}
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public static Core getInstance() {
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@ -24,18 +24,18 @@ import org.bukkit.configuration.file.YamlConfiguration;
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import java.io.File;
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import java.sql.*;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.logging.Level;
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public class SQL {
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private SQL(){}
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private static final String host;
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private static final String port;
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private static final String database;
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private static final String user;
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private static final String password;
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private static Connection con;
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private static String url;
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private static String user;
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private static String password;
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static{
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File file = new File(Core.getInstance().getDataFolder(), "MySQL.yml");
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@ -44,20 +44,47 @@ public class SQL {
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if(!file.exists())
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throw new SecurityException("SQL-ConfigFile not found!");
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host = config.getString("HOST");
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port = config.getString("PORT");
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database = config.getString("DATABASE");
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url = "jdbc:mysql://" + config.getString("HOST") + ":" + config.getString("PORT") + "/" + config.getString("DATABASE");
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user = config.getString("USER");
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password = config.getString("PASSWORD");
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connect();
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}
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public static void closeConnection() {
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private static void connect() {
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try {
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con = DriverManager.getConnection(url + "?autoreconnect=true", user, password);
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} catch (SQLException e) {
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throw new SecurityException("Could not start SQL connection", e);
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}
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}
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public static void close() {
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for (Statement statement : Statement.statements) {
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try {
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statement.st.close();
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} catch (SQLException e) {
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Core.getInstance().getLogger().log(Level.INFO, "Could not close statement", e);
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}
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}
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try {
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con.close();
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}catch (SQLException e) {
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throw new SecurityException("Could not close connection", e);
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} catch (SQLException e) {
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Core.getInstance().getLogger().log(Level.WARNING, "Could not close SQL-Connection", e);
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}
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}
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private static void reset(SQLException e) {
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Core.getInstance().getLogger().log(Level.WARNING, "SQL Exception thrown", e);
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close();
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connect();
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try {
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for (Statement statement : Statement.statements) {
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statement.init();
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}
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} catch (SQLException ex) {
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throw new SecurityException("Could not reprepare SQL Statements", ex);
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}
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}
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@ -65,7 +92,7 @@ public class SQL {
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try {
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prepare(qry, objects).executeUpdate();
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} catch (SQLException e) {
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reconnect();
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reset(e);
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try {
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prepare(qry, objects).executeUpdate();
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} catch (SQLException ex) {
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@ -78,7 +105,7 @@ public class SQL {
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try {
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return prepare(qry, objects).executeQuery();
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} catch (SQLException e) {
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reconnect();
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reset(e);
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try {
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return prepare(qry, objects).executeQuery();
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} catch (SQLException ex) {
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@ -91,7 +118,7 @@ public class SQL {
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try {
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return con.createBlob();
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} catch (SQLException e) {
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reconnect();
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reset(e);
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try {
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return con.createBlob();
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} catch (SQLException ex) {
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@ -108,18 +135,66 @@ public class SQL {
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return st;
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}
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private static void connect() {
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try {
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con = DriverManager.getConnection("jdbc:mysql://" + host + ":" + port + "/" + database + "?autoreconnect=true", user, password);
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if(con.isClosed())
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throw new SQLException("Could not connect to database!");
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}catch (SQLException e) {
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throw new SecurityException("No connection to database.", e);
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public static class Statement {
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private static final List<Statement> statements = new ArrayList<>();
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private final String sql;
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private PreparedStatement st;
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Statement(String sql) {
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this.sql = sql;
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statements.add(this);
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try {
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init();
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} catch (SQLException e) {
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reset(e);
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}
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}
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private synchronized void init() throws SQLException {
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st = con.prepareStatement(sql);
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}
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<T> T select(ResultSetUser<T> user, Object... objects) {
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return prepare(() -> {
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ResultSet rs = st.executeQuery();
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T result = user.use(rs);
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rs.close();
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return result;
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}, objects);
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}
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void update(Object... objects) {
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prepare(st::executeUpdate, objects);
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}
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private synchronized <T> T prepare(SQLRunnable<T> runnable, Object... objects) {
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try {
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setObjects(objects);
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return runnable.run();
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} catch (SQLException e) {
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reset(e);
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try {
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setObjects(objects);
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return runnable.run();
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} catch (SQLException ex) {
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throw new SecurityException("Could not execute SQL statement", ex);
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}
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}
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}
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private void setObjects(Object... objects) throws SQLException {
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for (int i = 0; i < objects.length; i++) {
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st.setObject(i + 1, objects[i]);
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}
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}
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interface ResultSetUser<T> {
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T use(ResultSet rs) throws SQLException;
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}
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private interface SQLRunnable<T> {
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T run() throws SQLException;
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}
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}
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private static void reconnect(){
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closeConnection();
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connect();
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}
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}
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@ -35,6 +35,8 @@ import java.util.zip.GZIPInputStream;
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public class Schematic {
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private static final SQL.Statement getSchemsOfType = new SQL.Statement("SELECT DISTINCT s.SchemID, s.SchemName, s.SchemOwner, s.Item, s.SchemType, s.Rank, s.SchemFormat FROM Schematic s LEFT JOIN SchemMember sm ON sm.SchemName = s.SchemName AND sm.SchemOwner = s.SchemOwner WHERE s.SchemType = ? AND (s.SchemOwner = ? OR sm.Member = ?) ORDER BY s.SchemName");
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private final int schemID;
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private final String schemName;
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private final int schemOwner;
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@ -118,12 +120,12 @@ public class Schematic {
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}
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public static List<Schematic> getSchemsOfType(int schemOwner, SchematicType schemType){
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//Unsauber, dafür auch geaddede Schematics dabei
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List<Schematic> schems = getSchemsAccessibleByUser(schemOwner);
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for(int i = schems.size()-1; i >= 0; i--)
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if(!schems.get(i).getSchemType().equals(schemType))
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schems.remove(i);
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return schems;
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return getSchemsOfType.select(rs -> {
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List<Schematic> schematics = new ArrayList<>();
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while(rs.next())
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schematics.add(new Schematic(rs));
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return schematics;
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}, schemType.toDB(), schemOwner, schemOwner);
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}
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public static List<Schematic> getAllSchemsOfType(SchematicType schemType){
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