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Prevent user purges and UUID updates from conflicting in mass database operations.

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This commit is contained in:
t00thpick1 2014-08-04 11:42:02 -04:00
parent 432ff95a98
commit f4c53aaf8a
1 changed files with 57 additions and 21 deletions
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78
src/main/java/com/gmail/nossr50/database/SQLDatabaseManager.java
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@ -13,6 +13,9 @@ import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.UUID;
import java.util.concurrent.locks.ReentrantLock;
import org.bukkit.scheduler.BukkitRunnable;
import com.gmail.nossr50.mcMMO;
import com.gmail.nossr50.config.Config;
@ -40,6 +43,8 @@ public final class SQLDatabaseManager implements DatabaseManager {
private ConnectionPool connectionPool;
private ReentrantLock massUpdateLock = new ReentrantLock();
protected SQLDatabaseManager() {
String connectionString = "jdbc:mysql://" + Config.getInstance().getMySQLServerName() + ":" + Config.getInstance().getMySQLServerPort() + "/" + Config.getInstance().getMySQLDatabaseName();
@ -76,6 +81,7 @@ public final class SQLDatabaseManager implements DatabaseManager {
}
public void purgePowerlessUsers() {
massUpdateLock.lock();
mcMMO.p.getLogger().info("Purging powerless users...");
Connection connection = null;
@ -113,12 +119,14 @@ public final class SQLDatabaseManager implements DatabaseManager {
// Ignore
}
}
massUpdateLock.unlock();
}
mcMMO.p.getLogger().info("Purged " + purged + " users from the database.");
}
public void purgeOldUsers() {
massUpdateLock.lock();
mcMMO.p.getLogger().info("Purging old users...");
Connection connection = null;
@ -156,6 +164,7 @@ public final class SQLDatabaseManager implements DatabaseManager {
// Ignore
}
}
massUpdateLock.unlock();
}
mcMMO.p.getLogger().info("Purged " + purged + " users from the database.");
@ -1360,7 +1369,6 @@ public final class SQLDatabaseManager implements DatabaseManager {
}
private void checkUpgradeAddUUIDs(final Statement statement) {
List<String> names = new ArrayList<String>();
ResultSet resultSet = null;
try {
@ -1396,29 +1404,57 @@ public final class SQLDatabaseManager implements DatabaseManager {
}
}
try {
resultSet = statement.executeQuery("SELECT `user` FROM `" + tablePrefix + "users` WHERE `uuid` IS NULL");
new GetUUIDUpdatesRequired().runTaskAsynchronously(mcMMO.p);
}
while (resultSet.next()) {
names.add(resultSet.getString("user"));
}
}
catch (SQLException ex) {
printErrors(ex);
}
finally {
if (resultSet != null) {
private class GetUUIDUpdatesRequired extends BukkitRunnable {
public void run() {
massUpdateLock.lock();
List<String> names = new ArrayList<String>();
Connection connection = null;
Statement statement = null;
ResultSet resultSet = null;
try {
try {
resultSet.close();
}
catch (SQLException e) {
// Ignore
}
}
}
connection = connectionPool.getConnection();
statement = connection.createStatement();
resultSet = statement.executeQuery("SELECT `user` FROM `" + tablePrefix + "users` WHERE `uuid` IS NULL");
if (!names.isEmpty()) {
new UUIDUpdateAsyncTask(mcMMO.p, names).runTaskAsynchronously(mcMMO.p);
while (resultSet.next()) {
names.add(resultSet.getString("user"));
}
} catch (SQLException ex) {
printErrors(ex);
} finally {
if (resultSet != null) {
try {
resultSet.close();
} catch (SQLException e) {
// Ignore
}
}
if (statement != null) {
try {
statement.close();
} catch (SQLException e) {
// Ignore
}
}
if (connection != null) {
try {
connection.close();
} catch (SQLException e) {
// Ignore
}
}
}
if (!names.isEmpty()) {
new UUIDUpdateAsyncTask(mcMMO.p, names).run();;
}
} finally {
massUpdateLock.unlock();
}
}
}