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MariaDBProvider.java
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package sqlancer.mariadb;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;
import com.google.auto.service.AutoService;
import sqlancer.DatabaseProvider;
import sqlancer.IgnoreMeException;
import sqlancer.MainOptions;
import sqlancer.Randomly;
import sqlancer.SQLConnection;
import sqlancer.SQLGlobalState;
import sqlancer.SQLProviderAdapter;
import sqlancer.common.DBMSCommon;
import sqlancer.common.query.SQLQueryAdapter;
import sqlancer.mariadb.MariaDBProvider.MariaDBGlobalState;
import sqlancer.mariadb.gen.MariaDBDeleteGenerator;
import sqlancer.mariadb.gen.MariaDBIndexGenerator;
import sqlancer.mariadb.gen.MariaDBInsertGenerator;
import sqlancer.mariadb.gen.MariaDBSetGenerator;
import sqlancer.mariadb.gen.MariaDBTableAdminCommandGenerator;
import sqlancer.mariadb.gen.MariaDBTableGenerator;
import sqlancer.mariadb.gen.MariaDBTruncateGenerator;
import sqlancer.mariadb.gen.MariaDBUpdateGenerator;
@AutoService(DatabaseProvider.class)
public class MariaDBProvider extends SQLProviderAdapter<MariaDBGlobalState, MariaDBOptions> {
public static final int MAX_EXPRESSION_DEPTH = 3;
public MariaDBProvider() {
super(MariaDBGlobalState.class, MariaDBOptions.class);
}
enum Action {
ANALYZE_TABLE, //
CHECKSUM, //
CHECK_TABLE, //
CREATE_INDEX, //
INSERT, //
OPTIMIZE, //
REPAIR_TABLE, //
SET, //
TRUNCATE, //
UPDATE, //
DELETE,
}
@Override
public void generateDatabase(MariaDBGlobalState globalState) throws Exception {
MainOptions options = globalState.getOptions();
while (globalState.getSchema().getDatabaseTables().size() < Randomly.getNotCachedInteger(1, 3)) {
String tableName = DBMSCommon.createTableName(globalState.getSchema().getDatabaseTables().size());
SQLQueryAdapter createTable = MariaDBTableGenerator.generate(tableName, globalState.getRandomly(),
globalState.getSchema());
globalState.executeStatement(createTable);
}
int[] nrRemaining = new int[Action.values().length];
List<Action> actions = new ArrayList<>();
int total = 0;
for (int i = 0; i < Action.values().length; i++) {
Action action = Action.values()[i];
int nrPerformed = 0;
switch (action) {
case CHECKSUM:
case CHECK_TABLE:
case TRUNCATE:
case REPAIR_TABLE:
case OPTIMIZE:
case ANALYZE_TABLE:
case UPDATE:
case CREATE_INDEX:
nrPerformed = globalState.getRandomly().getInteger(0, 2);
break;
case DELETE:
nrPerformed = globalState.getRandomly().getInteger(0, 2);
break;
case SET:
nrPerformed = 20;
break;
case INSERT:
nrPerformed = globalState.getRandomly().getInteger(0, options.getMaxNumberInserts());
break;
default:
throw new AssertionError(action);
}
if (nrPerformed != 0) {
actions.add(action);
}
nrRemaining[action.ordinal()] = nrPerformed;
total += nrPerformed;
}
while (total != 0) {
Action nextAction = null;
int selection = globalState.getRandomly().getInteger(0, total);
int previousRange = 0;
for (int i = 0; i < nrRemaining.length; i++) {
if (previousRange <= selection && selection < previousRange + nrRemaining[i]) {
nextAction = Action.values()[i];
break;
} else {
previousRange += nrRemaining[i];
}
}
assert nextAction != null;
assert nrRemaining[nextAction.ordinal()] > 0;
nrRemaining[nextAction.ordinal()]--;
SQLQueryAdapter query;
try {
switch (nextAction) {
case CHECKSUM:
query = MariaDBTableAdminCommandGenerator.checksumTable(globalState.getSchema());
break;
case CHECK_TABLE:
query = MariaDBTableAdminCommandGenerator.checkTable(globalState.getSchema());
break;
case TRUNCATE:
query = MariaDBTruncateGenerator.truncate(globalState.getSchema());
break;
case REPAIR_TABLE:
query = MariaDBTableAdminCommandGenerator.repairTable(globalState.getSchema());
break;
case INSERT:
query = MariaDBInsertGenerator.insert(globalState.getSchema(), globalState.getRandomly());
break;
case OPTIMIZE:
query = MariaDBTableAdminCommandGenerator.optimizeTable(globalState.getSchema());
break;
case ANALYZE_TABLE:
query = MariaDBTableAdminCommandGenerator.analyzeTable(globalState.getSchema());
break;
case UPDATE:
query = MariaDBUpdateGenerator.update(globalState.getSchema(), globalState.getRandomly());
break;
case CREATE_INDEX:
query = MariaDBIndexGenerator.generate(globalState.getSchema());
break;
case SET:
query = MariaDBSetGenerator.set(globalState.getRandomly(), options);
break;
case DELETE:
query = MariaDBDeleteGenerator.delete(globalState.getSchema(), globalState.getRandomly());
break;
default:
throw new AssertionError(nextAction);
}
} catch (IgnoreMeException e) {
total--;
continue;
}
try {
globalState.executeStatement(query);
} catch (Throwable t) {
System.err.println(query.getQueryString());
throw t;
}
total--;
}
}
public static class MariaDBGlobalState extends SQLGlobalState<MariaDBOptions, MariaDBSchema> {
@Override
protected MariaDBSchema readSchema() throws SQLException {
return MariaDBSchema.fromConnection(getConnection(), getDatabaseName());
}
}
@Override
public SQLConnection createDatabase(MariaDBGlobalState globalState) throws SQLException {
globalState.getState().logStatement("DROP DATABASE IF EXISTS " + globalState.getDatabaseName());
globalState.getState().logStatement("CREATE DATABASE " + globalState.getDatabaseName());
globalState.getState().logStatement("USE " + globalState.getDatabaseName());
String username = globalState.getOptions().getUserName();
String password = globalState.getOptions().getPassword();
String host = globalState.getOptions().getHost();
int port = globalState.getOptions().getPort();
if (host == null) {
host = MariaDBOptions.DEFAULT_HOST;
}
if (port == MainOptions.NO_SET_PORT) {
port = MariaDBOptions.DEFAULT_PORT;
}
String url = String.format("jdbc:mariadb://%s:%d", host, port);
Connection con = DriverManager.getConnection(url, username, password);
try (Statement s = con.createStatement()) {
s.execute("DROP DATABASE IF EXISTS " + globalState.getDatabaseName());
}
try (Statement s = con.createStatement()) {
s.execute("CREATE DATABASE " + globalState.getDatabaseName());
}
try (Statement s = con.createStatement()) {
s.execute("USE " + globalState.getDatabaseName());
}
return new SQLConnection(con);
}
@Override
public String getDBMSName() {
return "mariadb";
}
}