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war/war/src/main/java/com/tommytony/war/mapper/ZoneVolumeMapper.java

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package com.tommytony.war.mapper;
import java.io.File;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.text.DecimalFormat;
import java.util.Arrays;
import java.util.List;
import java.util.logging.Level;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.lang.Validate;
import org.bukkit.*;
import org.bukkit.Note.Tone;
import org.bukkit.block.Block;
import org.bukkit.block.BlockFace;
import org.bukkit.block.BlockState;
import org.bukkit.block.CommandBlock;
import org.bukkit.block.CreatureSpawner;
import org.bukkit.block.Jukebox;
import org.bukkit.block.NoteBlock;
import org.bukkit.block.Sign;
import org.bukkit.block.Skull;
import org.bukkit.configuration.file.YamlConfiguration;
import org.bukkit.entity.*;
import org.bukkit.inventory.InventoryHolder;
import org.bukkit.inventory.ItemStack;
import com.tommytony.war.War;
import com.tommytony.war.volume.Volume;
import com.tommytony.war.volume.ZoneVolume;
/**
* Loads and saves zone blocks to SQLite3 database.
*
* @author cmastudios
* @since 1.8
*/
public class ZoneVolumeMapper {
private static final int DATABASE_VERSION = 2;
private static final String delim = "-------mcwar iSdgraIyMvOanTEJjZgocczfuG------";
/**
* Get a connection to the warzone database, converting blocks if not found.
* @param volume zone volume to load
* @param zoneName warzone to load
* @param world world containing this warzone
* @return an open connection to the sqlite file
* @throws SQLException
*/
public static Connection getZoneConnection(ZoneVolume volume, String zoneName, World world) throws SQLException {
File databaseFile = new File(War.war.getDataFolder(), String.format("/dat/warzone-%s/volume-%s.sl3", zoneName, volume.getName()));
if (!databaseFile.exists()) {
// dropped nimitz compatibility with the MC 1.13 update
War.war.log("Warzone " + zoneName + " not found - creating new file. Will not attempt converting legacy War version formats.", Level.WARNING);
}
Connection databaseConnection = DriverManager.getConnection("jdbc:sqlite:" + databaseFile.getPath());
Statement stmt = databaseConnection.createStatement();
ResultSet versionQuery = stmt.executeQuery("PRAGMA user_version");
int version = versionQuery.getInt("user_version");
versionQuery.close();
if (version > DATABASE_VERSION) {
stmt.close();
databaseConnection.close();
// Can't load this too-recent format
throw new IllegalStateException(String.format("Unsupported zone format (was already converted to version: %d, current format: %d)", version, DATABASE_VERSION));
} else if (version < DATABASE_VERSION) {
stmt.close();
// We need to migrate to newest schema
switch (version) {
// Run some update SQL for each old version
case 1:
// Run update from 1 to 2
updateFromVersionOneToTwo(zoneName, databaseConnection);
// How to continue this pattern: (@tommytony multiple in one shouldn't be needed, just don't put a break in the switch)
// case 2:
// // Run update from 2 to 3
// updateFromVersionTwoToTree(zoneName, databaseConnection);
}
}
return databaseConnection;
}
/**
* Loads the given volume
*
* @param databaseConnection Open connection to zone database
* @param volume Volume to load
* @param world The world the zone is located
* @param onlyLoadCorners Should only the corners be loaded
* @param start Starting position to load blocks at
* @param total Amount of blocks to read
* @return Changed blocks
* @throws SQLException Error communicating with SQLite3 database
*/
public static int load(Connection databaseConnection, ZoneVolume volume, World world, boolean onlyLoadCorners, int start, int total, boolean[][][] changes) throws SQLException {
Validate.isTrue(!databaseConnection.isClosed());
Statement stmt = databaseConnection.createStatement();
ResultSet cornerQuery = stmt.executeQuery("SELECT * FROM corners");
cornerQuery.next();
final Block corner1 = world.getBlockAt(cornerQuery.getInt("x"), cornerQuery.getInt("y"), cornerQuery.getInt("z"));
cornerQuery.next();
final Block corner2 = world.getBlockAt(cornerQuery.getInt("x"), cornerQuery.getInt("y"), cornerQuery.getInt("z"));
cornerQuery.close();
volume.setCornerOne(corner1);
volume.setCornerTwo(corner2);
if (onlyLoadCorners) {
stmt.close();
return 0;
}
int minX = volume.getMinX(), minY = volume.getMinY(), minZ = volume.getMinZ();
int changed = 0;
ResultSet query = stmt.executeQuery("SELECT * FROM blocks ORDER BY rowid LIMIT " + start + ", " + total);
while (query.next()) {
int x = query.getInt("x"), y = query.getInt("y"), z = query.getInt("z");
changed++;
Block relative = corner1.getRelative(x, y, z);
int xi = relative.getX() - minX, yi = relative.getY() - minY, zi = relative.getZ() - minZ;
if (changes != null) {
changes[xi][yi][zi] = true;
}
BlockState modify = relative.getState();
ItemStack data = new ItemStack(Material.valueOf(query.getString("type")), 0, query.getShort("data"));
if (modify.getType() != data.getType() || !modify.getData().equals(data.getData())) {
// Update the type & data if it has changed
modify.setType(data.getType());
modify.setData(data.getData());
modify.update(true, false); // No-physics update, preventing the need for deferring blocks
modify = corner1.getRelative(x, y, z).getState(); // Grab a new instance
}
if (query.getString("metadata") == null || query.getString("metadata").isEmpty()) {
continue;
}
try {
if (modify instanceof Sign) {
final String[] lines = query.getString("metadata").split("\n");
for (int i = 0; i < lines.length; i++) {
((Sign) modify).setLine(i, lines[i]);
}
modify.update(true, false);
}
// Containers
if (modify instanceof InventoryHolder) {
YamlConfiguration config = new YamlConfiguration();
config.loadFromString(query.getString("metadata"));
((InventoryHolder) modify).getInventory().clear();
for (Object obj : config.getList("items")) {
if (obj instanceof ItemStack) {
((InventoryHolder) modify).getInventory().addItem((ItemStack) obj);
}
}
modify.update(true, false);
}
// Notes
if (modify instanceof NoteBlock) {
String[] split = query.getString("metadata").split("\n");
Note note = new Note(Integer.parseInt(split[1]), Tone.valueOf(split[0]), Boolean.parseBoolean(split[2]));
((NoteBlock) modify).setNote(note);
modify.update(true, false);
}
// Records
if (modify instanceof Jukebox) {
((Jukebox) modify).setPlaying(Material.valueOf(query.getString("metadata")));
modify.update(true, false);
}
// Skulls
if (modify instanceof Skull) {
String[] opts = query.getString("metadata").split("\n");
if (!opts[0].isEmpty()) {
// TODO upgrade to store owning players by UUID
((Skull) modify).setOwningPlayer(Bukkit.getOfflinePlayer(opts[0]));
}
((Skull) modify).setSkullType(SkullType.valueOf(opts[1]));
((Skull) modify).setRotation(BlockFace.valueOf(opts[2]));
modify.update(true, false);
}
// Command blocks
if (modify instanceof CommandBlock) {
final String[] commandArray = query.getString("metadata").split("\n");
((CommandBlock) modify).setName(commandArray[0]);
((CommandBlock) modify).setCommand(commandArray[1]);
modify.update(true, false);
}
// Creature spawner
if (modify instanceof CreatureSpawner) {
((CreatureSpawner) modify).setSpawnedType(EntityType.valueOf(query.getString("metadata")));
modify.update(true, false);
}
} catch (Exception ex) {
War.war.getLogger().log(Level.WARNING, "Exception loading some tile data. x:" + x + " y:" + y + " z:" + z + " type:" + modify.getType().toString() + " data:" + modify.getData().toString(), ex);
}
}
query.close();
stmt.close();
return changed;
}
/**
* Load saved entities.
*
* @param connection Open connection to warzone DB file.
* @param volume Volume for warzone.
* @return number affected
* @throws SQLException SQLite error
*/
public static int loadEntities(Connection connection, ZoneVolume volume) throws SQLException {
Validate.isTrue(!connection.isClosed());
// first, clear entities from the area
for (Entity e : volume.getWorld().getEntitiesByClass(Hanging.class)) {
if (volume.contains(e.getLocation())) {
e.remove();
}
}
int changed = 0;
Statement stmt = connection.createStatement();
ResultSet cornerQuery = stmt.executeQuery("SELECT * FROM corners");
cornerQuery.next();
final Block corner1 = volume.getWorld().getBlockAt(cornerQuery.getInt("x"), cornerQuery.getInt("y"), cornerQuery.getInt("z"));
cornerQuery.close();
Location test = new Location(volume.getWorld(), 0, 253, 0); // admins pls don't build stuff here kthx
// TODO move this to a migration step
stmt.executeUpdate("CREATE TABLE IF NOT EXISTS entities (x NUMERIC, y NUMERIC, z NUMERIC, type SMALLINT, facing TEXT, metadata TEXT)");
ResultSet query = stmt.executeQuery("SELECT * FROM entities ORDER BY rowid");
while (query.next()) {
double x = query.getDouble("x"), y = query.getDouble("y"), z = query.getDouble("z");
changed++;
// translate from relative DB location to absolute
Location absolute = corner1.getLocation().clone().add(x, y, z);
int type = query.getInt("type");
String facing = query.getString("facing");
String metadata = query.getString("metadata");
BlockFace face = BlockFace.valueOf(facing);
// Spawn the paintings in the sky somewhere, works because I can only get them to spawn north/south
test.getBlock().setType(Material.AIR);
test.add(2, 0, 0).getBlock().setType(Material.STONE);
try {
if (type == 1) {
Painting p = (Painting) volume.getWorld().spawnEntity(test.clone().add(0, 0, 1), EntityType.PAINTING);
Art art = Art.valueOf(metadata);
p.teleport(calculatePainting(art, face, absolute));
p.setFacingDirection(face, true);
p.setArt(art, true);
} else if (type == 2) {
ItemFrame itemFrame = (ItemFrame) volume.getWorld().spawnEntity(test.clone().add(0, 0, 1), EntityType.ITEM_FRAME);
itemFrame.teleport(absolute);
itemFrame.setFacingDirection(face, true);
String[] args = metadata.split(delim);
itemFrame.setRotation(Rotation.valueOf(args[0]));
YamlConfiguration config = new YamlConfiguration();
config.loadFromString(args[1]);
itemFrame.setItem(config.getItemStack("item"));
}
} catch (Exception ex) {
War.war.getLogger().log(Level.WARNING, "Exception loading entity. x:" + x + " y:" + y + " z:" + z + " type:" + type, ex);
}
}
test.getBlock().setType(Material.AIR);
query.close();
stmt.close();
return changed;
}
/**
* Finds the correct location to place a painting based on its characteristics.
* Credit goes to whatever forum I got this from.
*
* @param art Painting type
* @param facing Block face
* @param loc Desired location
* @return Corrected location
*/
private static Location calculatePainting(Art art, BlockFace facing, Location loc) {
switch(art) {
// 1x1
case ALBAN:
case AZTEC:
case AZTEC2:
case BOMB:
case KEBAB:
case PLANT:
case WASTELAND:
return loc; // No calculation needed.
// 1x2
case GRAHAM:
case WANDERER:
return loc.getBlock().getLocation().add(0, -1, 0);
// 2x1
case CREEBET:
case COURBET:
case POOL:
case SEA:
case SUNSET: // Use same as 4x3
// 4x3
case DONKEY_KONG:
case SKELETON:
if(facing == BlockFace.WEST)
return loc.getBlock().getLocation().add(0, 0, -1);
else if(facing == BlockFace.SOUTH)
return loc.getBlock().getLocation().add(-1, 0, 0);
else
return loc;
// 2x2
case BUST:
case MATCH:
case SKULL_AND_ROSES:
case STAGE:
case VOID:
case WITHER: // Use same as 4x2
// 4x2
case FIGHTERS: // Use same as 4x4
// 4x4
case BURNING_SKULL:
case PIGSCENE:
case POINTER:
if(facing == BlockFace.WEST)
return loc.getBlock().getLocation().add(0, -1, -1);
else if(facing == BlockFace.SOUTH)
return loc.getBlock().getLocation().add(-1, -1, 0);
else
return loc.add(0, -1, 0);
// Unsupported artwork
default:
return loc;
}
}
public static int saveStructure(Volume volume, Connection databaseConnection) throws SQLException {
Statement stmt = databaseConnection.createStatement();
stmt.executeUpdate("PRAGMA user_version = " + DATABASE_VERSION);
// Storing zonemaker-inputted name could result in injection or undesirable behavior.
String prefix = String.format("structure_%d", volume.getName().hashCode() & Integer.MAX_VALUE);
stmt.executeUpdate("CREATE TABLE IF NOT EXISTS " + prefix +
"_blocks (x BIGINT, y BIGINT, z BIGINT, type TEXT, data SMALLINT)");
stmt.executeUpdate("CREATE TABLE IF NOT EXISTS " + prefix +
"_corners (pos INTEGER PRIMARY KEY NOT NULL UNIQUE, x INTEGER NOT NULL, y INTEGER NOT NULL, z INTEGER NOT NULL)");
stmt.executeUpdate("DELETE FROM " + prefix + "_blocks");
stmt.executeUpdate("DELETE FROM " + prefix + "_corners");
stmt.close();
PreparedStatement cornerStmt = databaseConnection
.prepareStatement("INSERT INTO " + prefix + "_corners SELECT 1 AS pos, ? AS x, ? AS y, ? AS z UNION SELECT 2, ?, ?, ?");
cornerStmt.setInt(1, volume.getCornerOne().getBlockX());
cornerStmt.setInt(2, volume.getCornerOne().getBlockY());
cornerStmt.setInt(3, volume.getCornerOne().getBlockZ());
cornerStmt.setInt(4, volume.getCornerTwo().getBlockX());
cornerStmt.setInt(5, volume.getCornerTwo().getBlockY());
cornerStmt.setInt(6, volume.getCornerTwo().getBlockZ());
cornerStmt.executeUpdate();
cornerStmt.close();
PreparedStatement dataStmt = databaseConnection
.prepareStatement("INSERT INTO " + prefix + "_blocks VALUES (?, ?, ?, ?, ?)");
databaseConnection.setAutoCommit(false);
final int batchSize = 1000;
int changed = 0;
for (BlockState block : volume.getBlocks()) {
final Location relLoc = ZoneVolumeMapper.rebase(
volume.getCornerOne(), block.getLocation());
dataStmt.setInt(1, relLoc.getBlockX());
dataStmt.setInt(2, relLoc.getBlockY());
dataStmt.setInt(3, relLoc.getBlockZ());
dataStmt.setString(4, block.getType().toString());
dataStmt.setShort(5, block.getData().toItemStack(1).getDurability());
dataStmt.addBatch();
if (++changed % batchSize == 0) {
dataStmt.executeBatch();
}
}
dataStmt.executeBatch(); // insert remaining records
databaseConnection.commit();
databaseConnection.setAutoCommit(true);
dataStmt.close();
return changed;
}
public static void loadStructure(Volume volume, Connection databaseConnection) throws SQLException {
String prefix = String.format("structure_%d", volume.getName().hashCode() & Integer.MAX_VALUE);
World world = volume.getWorld();
Validate.notNull(world, String.format("Cannot find the warzone for %s", prefix));
Statement stmt = databaseConnection.createStatement();
ResultSet cornerQuery = stmt.executeQuery("SELECT * FROM " + prefix + "_corners");
cornerQuery.next();
final Block corner1 = world.getBlockAt(cornerQuery.getInt("x"), cornerQuery.getInt("y"), cornerQuery.getInt("z"));
cornerQuery.next();
final Block corner2 = world.getBlockAt(cornerQuery.getInt("x"), cornerQuery.getInt("y"), cornerQuery.getInt("z"));
cornerQuery.close();
volume.setCornerOne(corner1);
volume.setCornerTwo(corner2);
volume.getBlocks().clear();
ResultSet query = stmt.executeQuery("SELECT * FROM " + prefix + "_blocks");
while (query.next()) {
int x = query.getInt("x"), y = query.getInt("y"), z = query.getInt("z");
BlockState modify = corner1.getRelative(x, y, z).getState();
ItemStack data = new ItemStack(Material.valueOf(query.getString("type")), 0, query.getShort("data"));
modify.setType(data.getType());
modify.setData(data.getData());
volume.getBlocks().add(modify);
}
query.close();
stmt.close();
}
/**
* Get total saved blocks for a warzone. This should only be called on nimitz-format warzones.
* @param volume Warzone volume
* @param zoneName Name of zone file
* @return Total saved blocks
* @throws SQLException
*/
public static int getTotalSavedBlocks(ZoneVolume volume, String zoneName) throws SQLException {
File databaseFile = new File(War.war.getDataFolder(), String.format("/dat/warzone-%s/volume-%s.sl3", zoneName, volume.getName()));
Connection databaseConnection = DriverManager.getConnection("jdbc:sqlite:" + databaseFile.getPath());
Statement stmt = databaseConnection.createStatement();
ResultSet sizeQuery = stmt.executeQuery("SELECT COUNT(*) AS total FROM blocks");
int size = sizeQuery.getInt("total");
sizeQuery.close();
stmt.close();
databaseConnection.close();
return size;
}
/**
* Save all war zone blocks to a SQLite3 database file.
*
* @param volume Volume to save (takes corner data and loads from world).
* @param zoneName Name of warzone to save.
* @return amount of changed blocks
* @throws SQLException
*/
public static int save(Volume volume, String zoneName) throws SQLException {
long startTime = System.currentTimeMillis();
int changed = 0;
File warzoneDir = new File(War.war.getDataFolder().getPath() + "/dat/warzone-" + zoneName);
if (!warzoneDir.exists() && !warzoneDir.mkdirs()) {
throw new RuntimeException("Failed to create warzone data directory");
}
File databaseFile = new File(War.war.getDataFolder(), String.format("/dat/warzone-%s/volume-%s.sl3", zoneName, volume.getName()));
Connection databaseConnection = DriverManager.getConnection("jdbc:sqlite:" + databaseFile.getPath());
Statement stmt = databaseConnection.createStatement();
stmt.executeUpdate("PRAGMA user_version = " + DATABASE_VERSION);
stmt.executeUpdate("CREATE TABLE IF NOT EXISTS blocks (x BIGINT, y BIGINT, z BIGINT, type TEXT, data SMALLINT, metadata BLOB)");
stmt.executeUpdate("CREATE TABLE IF NOT EXISTS entities (x NUMERIC, y NUMERIC, z NUMERIC, type SMALLINT, facing TEXT, metadata TEXT)");
stmt.executeUpdate("CREATE TABLE IF NOT EXISTS corners (pos INTEGER PRIMARY KEY NOT NULL UNIQUE, x INTEGER NOT NULL, y INTEGER NOT NULL, z INTEGER NOT NULL)");
stmt.executeUpdate("DELETE FROM blocks");
stmt.executeUpdate("DELETE FROM corners");
stmt.executeUpdate("DELETE FROM entities");
stmt.close();
PreparedStatement cornerStmt = databaseConnection.prepareStatement("INSERT INTO corners SELECT 1 AS pos, ? AS x, ? AS y, ? AS z UNION SELECT 2, ?, ?, ?");
cornerStmt.setInt(1, volume.getCornerOne().getBlockX());
cornerStmt.setInt(2, volume.getCornerOne().getBlockY());
cornerStmt.setInt(3, volume.getCornerOne().getBlockZ());
cornerStmt.setInt(4, volume.getCornerTwo().getBlockX());
cornerStmt.setInt(5, volume.getCornerTwo().getBlockY());
cornerStmt.setInt(6, volume.getCornerTwo().getBlockZ());
cornerStmt.executeUpdate();
cornerStmt.close();
PreparedStatement entityStmt = databaseConnection.prepareStatement("INSERT INTO entities (x, y, z, type, facing, metadata) VALUES (?, ?, ?, ?, ?, ?)");
for (Entity e : volume.getWorld().getEntities()) {
if (volume.contains(e.getLocation()) && e instanceof Hanging) {
entityStmt.setDouble(1, e.getLocation().getX() - volume.getCornerOne().getBlockX());
entityStmt.setDouble(2, e.getLocation().getY() - volume.getCornerOne().getBlockY());
entityStmt.setDouble(3, e.getLocation().getZ() - volume.getCornerOne().getBlockZ());
entityStmt.setString(5, ((Hanging) e).getFacing().name());
if (e instanceof Painting) {
Painting p = (Painting) e;
entityStmt.setInt(4, 1);
entityStmt.setString(6, p.getArt().name());
} else if (e instanceof ItemFrame) {
ItemFrame itemFrame = (ItemFrame) e;
YamlConfiguration config = new YamlConfiguration();
config.set("item", itemFrame.getItem());
entityStmt.setInt(4, 2);
entityStmt.setString(6, itemFrame.getRotation().name() + delim + config.saveToString());
} else {
entityStmt.setInt(4, 0);
entityStmt.setString(6, "");
}
entityStmt.addBatch();
}
}
entityStmt.executeBatch();
entityStmt.close();
PreparedStatement dataStmt = databaseConnection.prepareStatement("INSERT INTO blocks (x, y, z, type, data, metadata) VALUES (?, ?, ?, ?, ?, ?)");
databaseConnection.setAutoCommit(false);
final int batchSize = 10000;
for (int i = 0, x = volume.getMinX(); i < volume.getSizeX(); i++, x++) {
for (int j = 0, y = volume.getMinY(); j < volume.getSizeY(); j++, y++) {
for (int k = 0, z = volume.getMinZ(); k < volume.getSizeZ(); k++, z++) {
// Make sure we are using zone volume-relative coords
final Block block = volume.getWorld().getBlockAt(x, y, z);
if (block.getType() == Material.AIR) {
continue; // Do not save air blocks to the file anymore.
}
final BlockState state = block.getState();
dataStmt.setInt(1, block.getX() - volume.getCornerOne().getBlockX());
dataStmt.setInt(2, block.getY() - volume.getCornerOne().getBlockY());
dataStmt.setInt(3, block.getZ() - volume.getCornerOne().getBlockZ());
dataStmt.setString(4, block.getType().name());
dataStmt.setShort(5, state.getData().toItemStack(1).getDurability());
if (state instanceof Sign) {
final String signText = StringUtils.join(((Sign) block.getState()).getLines(), "\n");
dataStmt.setString(6, signText);
} else if (state instanceof InventoryHolder) {
List<ItemStack> items = Arrays.asList(((InventoryHolder) block.getState()).getInventory().getContents());
YamlConfiguration config = new YamlConfiguration();
// Serialize to config, then store config in database
config.set("items", items);
dataStmt.setString(6, config.saveToString());
} else if (state instanceof NoteBlock) {
Note note = ((NoteBlock) block.getState()).getNote();
dataStmt.setString(6, note.getTone().toString() + '\n' + note.getOctave() + '\n' + note.isSharped());
} else if (state instanceof Jukebox) {
dataStmt.setString(6, ((Jukebox) block.getState()).getPlaying().toString());
} else if (state instanceof Skull) {
// TODO upgrade to store owning player by UUID
dataStmt.setString(6, String.format("%s\n%s\n%s",
((Skull) block.getState()).hasOwner() ? ((Skull) block.getState()).getOwningPlayer().getName() : "",
((Skull) block.getState()).getSkullType().toString(),
((Skull) block.getState()).getRotation().toString()));
} else if (state instanceof CommandBlock) {
dataStmt.setString(6, ((CommandBlock) block.getState()).getName()
+ "\n" + ((CommandBlock) block.getState()).getCommand());
} else if (state instanceof CreatureSpawner) {
dataStmt.setString(6, ((CreatureSpawner) block.getState()).getSpawnedType().toString());
}
dataStmt.addBatch();
if (++changed % batchSize == 0) {
dataStmt.executeBatch();
if ((System.currentTimeMillis() - startTime) >= 5000L) {
String seconds = new DecimalFormat("#0.00").format((double) (System.currentTimeMillis() - startTime) / 1000.0D);
War.war.getLogger().log(Level.FINE, "Still saving warzone {0} , {1} seconds elapsed.", new Object[] {zoneName, seconds});
}
}
}
}
}
dataStmt.executeBatch(); // insert remaining records
databaseConnection.commit();
dataStmt.close();
databaseConnection.setAutoCommit(true);
databaseConnection.close();
String seconds = new DecimalFormat("#0.00").format((double) (System.currentTimeMillis() - startTime) / 1000.0D);
War.war.getLogger().log(Level.INFO, "Saved warzone {0} in {1} seconds.", new Object[] {zoneName, seconds});
return changed;
}
static Location rebase(final Location base, final Location exact) {
return new Location(base.getWorld(),
exact.getBlockX() - base.getBlockX(),
exact.getBlockY() - base.getBlockY(),
exact.getBlockZ() - base.getBlockZ());
}
private static void updateFromVersionOneToTwo(String zoneName, Connection connection) throws SQLException {
War.war.log("Migrating warzone " + zoneName + " from v1 to v2 of schema...", Level.INFO);
// We want to do this in a transaction
connection.setAutoCommit(false);
Statement stmt = connection.createStatement();
// We want to combine all extra columns into a single metadata BLOB one. To delete some columns we need to drop the table so we use a temp one.
stmt.executeUpdate("CREATE TEMPORARY TABLE blocks_backup(x BIGINT, y BIGINT, z BIGINT, type TEXT, data SMALLINT, sign TEXT, container BLOB, note INT, record TEXT, skull TEXT, command TEXT, mobid TEXT)");
stmt.executeUpdate("INSERT INTO blocks_backup SELECT x, y, z, type, data, sign, container, note, record, skull, command, mobid FROM blocks");
stmt.executeUpdate("DROP TABLE blocks");
stmt.executeUpdate("CREATE TABLE blocks(x BIGINT, y BIGINT, z BIGINT, type TEXT, data SMALLINT, metadata BLOB)");
stmt.executeUpdate("INSERT INTO blocks SELECT x, y, z, type, data, coalesce(container, sign, note, record, skull, command, mobid) FROM blocks_backup");
stmt.executeUpdate("DROP TABLE blocks_backup");
stmt.executeUpdate("PRAGMA user_version = 2");
stmt.close();
// Commit transaction
connection.commit();
connection.setAutoCommit(true);
War.war.log("Warzone " + zoneName + " converted! Compacting database...", Level.INFO);
// Pack the database otherwise we won't get any space savings.
// This rebuilds the database completely and takes some time.
stmt = connection.createStatement();
stmt.execute("VACUUM");
stmt.close();
War.war.log("Migration of warzone " + zoneName + " to v2 of schema finished.", Level.INFO);
}
}
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