mirror of
https://github.com/BlueMap-Minecraft/BlueMap.git
synced 2024-09-27 14:52:57 +02:00
150 lines
5.2 KiB
Java
150 lines
5.2 KiB
Java
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package de.bluecolored.bluemap.core.storage.sql;
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import de.bluecolored.bluemap.core.logger.Logger;
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import lombok.Getter;
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import lombok.RequiredArgsConstructor;
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import org.apache.commons.dbcp2.*;
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import org.apache.commons.pool2.ObjectPool;
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import org.apache.commons.pool2.impl.GenericObjectPool;
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import org.apache.commons.pool2.impl.GenericObjectPoolConfig;
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import javax.sql.DataSource;
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import java.io.Closeable;
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import java.io.IOException;
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import java.sql.Connection;
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import java.sql.Driver;
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import java.sql.SQLException;
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import java.sql.SQLRecoverableException;
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import java.time.Duration;
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import java.util.Map;
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import java.util.Properties;
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@Getter
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@RequiredArgsConstructor
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public class Database implements Closeable {
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private final DataSource dataSource;
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private boolean isClosed = false;
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public Database(String url, Map<String, String> properties, int maxPoolSize) {
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Properties props = new Properties();
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props.putAll(properties);
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this.dataSource = createDataSource(new DriverManagerConnectionFactory(url, props), maxPoolSize);
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}
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public Database(String url, Map<String, String> properties, int maxPoolSize, Driver driver) {
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Properties props = new Properties();
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props.putAll(properties);
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ConnectionFactory connectionFactory = new DriverConnectionFactory(
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driver,
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url,
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props
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);
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this.dataSource = createDataSource(connectionFactory, maxPoolSize);
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}
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public void run(ConnectionConsumer action) throws IOException {
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run((ConnectionFunction<Void>) action);
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}
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public <R> R run(ConnectionFunction<R> action) throws IOException {
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SQLException sqlException = null;
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try {
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for (int i = 0; i < 2; i++) {
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try (Connection connection = dataSource.getConnection()) {
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try {
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R result = action.apply(connection);
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connection.commit();
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return result;
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} catch (SQLRecoverableException ex) {
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if (sqlException == null) {
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sqlException = ex;
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} else {
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sqlException.addSuppressed(ex);
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}
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}
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}
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}
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} catch (SQLException ex) {
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if (sqlException != null)
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ex.addSuppressed(sqlException);
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throw new IOException(ex);
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} catch (IOException | RuntimeException ex) {
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if (sqlException != null)
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ex.addSuppressed(sqlException);
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throw ex;
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}
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throw new IOException(sqlException);
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}
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@Override
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public void close() throws IOException {
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isClosed = true;
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if (dataSource instanceof AutoCloseable) {
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try {
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((AutoCloseable) dataSource).close();
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} catch (IOException ex) {
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throw ex;
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} catch (Exception ex) {
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throw new IOException("Failed to close datasource!", ex);
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}
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}
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}
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private DataSource createDataSource(ConnectionFactory connectionFactory, int maxPoolSize) {
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PoolableConnectionFactory poolableConnectionFactory =
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new PoolableConnectionFactory(() -> {
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Logger.global.logDebug("Creating new SQL-Connection...");
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return connectionFactory.createConnection();
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}, null);
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poolableConnectionFactory.setPoolStatements(true);
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poolableConnectionFactory.setMaxOpenPreparedStatements(20);
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poolableConnectionFactory.setDefaultAutoCommit(false);
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poolableConnectionFactory.setAutoCommitOnReturn(false);
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poolableConnectionFactory.setRollbackOnReturn(true);
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poolableConnectionFactory.setFastFailValidation(true);
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GenericObjectPoolConfig<PoolableConnection> objectPoolConfig = new GenericObjectPoolConfig<>();
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objectPoolConfig.setTestWhileIdle(true);
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objectPoolConfig.setTimeBetweenEvictionRuns(Duration.ofSeconds(10));
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objectPoolConfig.setNumTestsPerEvictionRun(3);
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objectPoolConfig.setBlockWhenExhausted(true);
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objectPoolConfig.setMinIdle(1);
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objectPoolConfig.setMaxIdle(Runtime.getRuntime().availableProcessors());
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objectPoolConfig.setMaxTotal(maxPoolSize);
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objectPoolConfig.setMaxWaitMillis(Duration.ofSeconds(30).toMillis());
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ObjectPool<PoolableConnection> connectionPool =
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new GenericObjectPool<>(poolableConnectionFactory, objectPoolConfig);
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poolableConnectionFactory.setPool(connectionPool);
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return new PoolingDataSource<>(connectionPool);
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}
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@FunctionalInterface
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public interface ConnectionConsumer extends ConnectionFunction<Void> {
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void accept(java.sql.Connection connection) throws SQLException, IOException;
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@Override
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default Void apply(java.sql.Connection connection) throws SQLException, IOException {
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accept(connection);
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return null;
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}
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}
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@FunctionalInterface
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public interface ConnectionFunction<R> {
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R apply(java.sql.Connection connection) throws SQLException, IOException;
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}
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}
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