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Add table prefix support to MySQL.

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This commit is contained in:
AppleDash 2016-12-06 08:20:26 -05:00
parent 908b7c956b
commit 9eaab03c50
5 changed files with 27 additions and 16 deletions
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24
SaneEconomyCore/src/main/java/org/appledash/saneeconomy/economy/backend/type/EconomyStorageBackendMySQL.java
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@ -27,14 +27,14 @@ public class EconomyStorageBackendMySQL extends EconomyStorageBackendCaching {
private void createTables() {
try (Connection conn = dbConn.openConnection()) {
int schemaVersion;
if (!checkTableExists("saneeconomy_schema")) {
if (checkTableExists("player_balances")) {
if (!checkTableExists(dbConn.getTable("saneeconomy_schema"))) {
if (checkTableExists(dbConn.getTable("player_balances"))) {
schemaVersion = 1;
} else {
schemaVersion = 0;
}
} else {
PreparedStatement ps = conn.prepareStatement("SELECT `val` FROM saneeconomy_schema WHERE `key` = 'schema_version'");
PreparedStatement ps = conn.prepareStatement(String.format("SELECT `val` FROM `%s` WHERE `key` = 'schema_version'", dbConn.getTable("saneeconomy_schema")));
ps.executeQuery();
ResultSet rs = ps.getResultSet();
@ -47,10 +47,10 @@ public class EconomyStorageBackendMySQL extends EconomyStorageBackendCaching {
if (schemaVersion < 2) {
if (schemaVersion < 1) {
PreparedStatement ps = conn.prepareStatement("CREATE TABLE IF NOT EXISTS `player_balances` (player_uuid CHAR(36), balance DECIMAL(18, 2))");
PreparedStatement ps = conn.prepareStatement(String.format("CREATE TABLE IF NOT EXISTS `%s` (player_uuid CHAR(36), balance DECIMAL(18, 2))", dbConn.getTable("player_balances")));
ps.executeUpdate();
}
conn.prepareStatement("CREATE TABLE IF NOT EXISTS `saneeconomy_schema` (`key` VARCHAR(32) PRIMARY KEY, `val` TEXT)").executeUpdate();
conn.prepareStatement(String.format("CREATE TABLE IF NOT EXISTS `%s` (`key` VARCHAR(32) PRIMARY KEY, `val` TEXT)", dbConn.getTable("saneeconomy_schema"))).executeUpdate();
upgradeSchema1To2(conn);
}
} catch (SQLException e) {
@ -60,9 +60,9 @@ public class EconomyStorageBackendMySQL extends EconomyStorageBackendCaching {
private void upgradeSchema1To2(Connection conn) throws SQLException {
SaneEconomy.logger().info("Upgrading database schema from version 1 to version 2. This might take a little while...");
PreparedStatement ps = conn.prepareStatement("REPLACE INTO `saneeconomy_schema` (`key`, `val`) VALUES ('schema_version', '2')");
PreparedStatement ps = conn.prepareStatement(String.format("REPLACE INTO `%s` (`key`, `val`) VALUES ('schema_version', '2')", dbConn.getTable("saneeconomy_schema")));
ps.executeUpdate();
conn.prepareStatement("CREATE TABLE `saneeconomy_balances` (unique_identifier VARCHAR(128) PRIMARY KEY, balance DECIMAL(18, 2))").executeUpdate();
conn.prepareStatement(String.format("CREATE TABLE `%s` (unique_identifier VARCHAR(128) PRIMARY KEY, balance DECIMAL(18, 2))", dbConn.getTable("saneeconomy_balances"))).executeUpdate();
ps = conn.prepareStatement("SELECT * FROM `player_balances`");
ResultSet rs = ps.executeQuery();
@ -73,7 +73,7 @@ public class EconomyStorageBackendMySQL extends EconomyStorageBackendCaching {
}
for (Entry<String, Double> e : oldBalances.entrySet()) {
ps = conn.prepareStatement("INSERT INTO `saneeconomy_balances` (unique_identifier, balance) VALUES (?, ?)");
ps = conn.prepareStatement(String.format("INSERT INTO `%s` (unique_identifier, balance) VALUES (?, ?)", dbConn.getTable("saneeconomy_balances")));
ps.setString(1, "player:" + e.getKey());
ps.setDouble(2, e.getValue());
ps.executeUpdate();
@ -100,7 +100,7 @@ public class EconomyStorageBackendMySQL extends EconomyStorageBackendCaching {
public synchronized void reloadDatabase() {
createTables();
try (Connection conn = dbConn.openConnection()) {
PreparedStatement ps = conn.prepareStatement("SELECT * FROM `saneeconomy_balances`");
PreparedStatement ps = conn.prepareStatement(String.format("SELECT * FROM `%s`", dbConn.getTable("saneeconomy_balances")));
ResultSet rs = ps.executeQuery();
balances.clear();
@ -121,7 +121,7 @@ public class EconomyStorageBackendMySQL extends EconomyStorageBackendCaching {
dbConn.executeAsyncOperation((conn) -> {
try {
ensureAccountExists(economable, conn);
PreparedStatement statement = conn.prepareStatement("UPDATE `saneeconomy_balances` SET balance = ? WHERE `unique_identifier` = ?");
PreparedStatement statement = conn.prepareStatement(String.format("UPDATE `%s` SET balance = ? WHERE `unique_identifier` = ?", dbConn.getTable("saneeconomy_balances")));
statement.setDouble(1, newBalance);
statement.setString(2, economable.getUniqueIdentifier());
statement.executeUpdate();
@ -134,14 +134,14 @@ public class EconomyStorageBackendMySQL extends EconomyStorageBackendCaching {
private synchronized void ensureAccountExists(Economable economable, Connection conn) throws SQLException {
if (!accountExists(economable, conn)) {
PreparedStatement statement = conn.prepareStatement("INSERT INTO `saneeconomy_balances` (unique_identifier, balance) VALUES (?, 0.0)");
PreparedStatement statement = conn.prepareStatement(String.format("INSERT INTO `%s` (unique_identifier, balance) VALUES (?, 0.0)", dbConn.getTable("saneeconomy_balances")));
statement.setString(1, economable.getUniqueIdentifier());
statement.executeUpdate();
}
}
private synchronized boolean accountExists(Economable economable, Connection conn) throws SQLException {
PreparedStatement statement = conn.prepareStatement("SELECT 1 FROM `saneeconomy_balances` WHERE `unique_identifier` = ?");
PreparedStatement statement = conn.prepareStatement(String.format("SELECT 1 FROM `%s` WHERE `unique_identifier` = ?", dbConn.getTable("saneeconomy_balances")));
statement.setString(1, economable.getUniqueIdentifier());
ResultSet rs = statement.executeQuery();

4
SaneEconomyCore/src/main/java/org/appledash/saneeconomy/economy/logger/TransactionLoggerMySQL.java
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@ -23,7 +23,7 @@ public class TransactionLoggerMySQL implements TransactionLogger {
private void logGeneric(String from, String to, double change, TransactionReason reason) {
this.dbConn.executeAsyncOperation((conn) -> {
try {
PreparedStatement ps = conn.prepareStatement("INSERT INTO transaction_logs (`source`, `destination`, `amount`, `reason`) VALUES (?, ?, ?, ?)");
PreparedStatement ps = conn.prepareStatement(String.format("INSERT INTO `%s` (`source`, `destination`, `amount`, `reason`) VALUES (?, ?, ?, ?)", dbConn.getTable("transaction_logs")));
ps.setString(1, from);
ps.setString(2, to);
ps.setDouble(3, change);
@ -46,7 +46,7 @@ public class TransactionLoggerMySQL implements TransactionLogger {
private void createTables() {
try (Connection conn = dbConn.openConnection()) {
PreparedStatement ps = conn.prepareStatement("CREATE TABLE IF NOT EXISTS `transaction_logs` (`source` VARCHAR(128), `destination` VARCHAR(128), `amount` DECIMAL(18, 2), `reason` VARCHAR(128))");
PreparedStatement ps = conn.prepareStatement(String.format("CREATE TABLE IF NOT EXISTS `%s` (`source` VARCHAR(128), `destination` VARCHAR(128), `amount` DECIMAL(18, 2), `reason` VARCHAR(128))", dbConn.getTable("transaction_logs")));
ps.executeUpdate();
} catch (SQLException e) {
throw new RuntimeException("Failed to create transaction logger tables", e);

8
SaneEconomyCore/src/main/java/org/appledash/saneeconomy/utils/DatabaseCredentials.java
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@ -10,13 +10,15 @@ public class DatabaseCredentials {
private final String username;
private final String password;
private final String databaseName;
private final String tablePrefix;
public DatabaseCredentials(String hostname, int port, String username, String password, String databaseName) {
public DatabaseCredentials(String hostname, int port, String username, String password, String databaseName, String tablePrefix) {
this.hostname = hostname;
this.port = port;
this.username = username;
this.password = password;
this.databaseName = databaseName;
this.tablePrefix = tablePrefix;
}
public String getHostname() {
@ -42,4 +44,8 @@ public class DatabaseCredentials {
public String getJDBCURL() {
return String.format("jdbc:mysql://%s:%d/%s", hostname, port, databaseName);
}
public String getTablePrefix() {
return tablePrefix;
}
}

4
SaneEconomyCore/src/main/java/org/appledash/saneeconomy/utils/MySQLConnection.java
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@ -63,6 +63,10 @@ public class MySQLConnection {
return dbCredentials;
}
public String getTable(String tableName) {
return dbCredentials.getTablePrefix() + tableName;
}
private void waitForSlot() {
while (openTransactions.get() >= MAX_OPEN_TRANSACTIONS) {
try {

3
SaneEconomyCore/src/main/java/org/appledash/saneeconomy/utils/SaneEconomyConfiguration.java
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@ -150,9 +150,10 @@ public class SaneEconomyConfiguration {
String backendDb = config.getString("database");
String backendUser = config.getString("username");
String backendPass = config.getString("password");
String tablePrefix = config.getString("table_prefix", "");
return new DatabaseCredentials(
backendHost, backendPort, backendUser, backendPass, backendDb
backendHost, backendPort, backendUser, backendPass, backendDb, tablePrefix
);
}
}