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package sqlancer.databend;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;
import com.google.auto.service.AutoService;
import sqlancer.AbstractAction;
import sqlancer.DatabaseProvider;
import sqlancer.IgnoreMeException;
import sqlancer.MainOptions;
import sqlancer.Randomly;
import sqlancer.SQLConnection;
import sqlancer.SQLGlobalState;
import sqlancer.SQLProviderAdapter;
import sqlancer.StatementExecutor;
import sqlancer.common.query.ExpectedErrors;
import sqlancer.common.query.SQLQueryAdapter;
import sqlancer.common.query.SQLQueryProvider;
import sqlancer.databend.DatabendProvider.DatabendGlobalState;
import sqlancer.databend.gen.DatabendDeleteGenerator;
import sqlancer.databend.gen.DatabendInsertGenerator;
import sqlancer.databend.gen.DatabendRandomQuerySynthesizer;
import sqlancer.databend.gen.DatabendTableGenerator;
import sqlancer.databend.gen.DatabendViewGenerator;
@AutoService(DatabaseProvider.class)
public class DatabendProvider extends SQLProviderAdapter<DatabendGlobalState, DatabendOptions> {
public DatabendProvider() {
super(DatabendGlobalState.class, DatabendOptions.class);
}
public enum Action implements AbstractAction<DatabendGlobalState> {
INSERT(DatabendInsertGenerator::getQuery), DELETE(DatabendDeleteGenerator::generate),
// TODO 等待databend实现update
// UPDATE(DatabendUpdateGenerator::getQuery), //
CREATE_VIEW(DatabendViewGenerator::generate), EXPLAIN((g) -> {
ExpectedErrors errors = new ExpectedErrors();
DatabendErrors.addExpressionErrors(errors);
DatabendErrors.addGroupByErrors(errors);
return new SQLQueryAdapter(
"EXPLAIN " + DatabendToStringVisitor
.asString(DatabendRandomQuerySynthesizer.generateSelect(g, Randomly.smallNumber() + 1)),
errors);
});
private final SQLQueryProvider<DatabendGlobalState> sqlQueryProvider;
Action(SQLQueryProvider<DatabendGlobalState> sqlQueryProvider) {
this.sqlQueryProvider = sqlQueryProvider;
}
@Override
public SQLQueryAdapter getQuery(DatabendGlobalState state) throws Exception {
return sqlQueryProvider.getQuery(state);
}
}
private static int mapActions(DatabendGlobalState globalState, Action a) {
Randomly r = globalState.getRandomly();
switch (a) {
case INSERT:
return r.getInteger(0, globalState.getOptions().getMaxNumberInserts());
case EXPLAIN:
return r.getInteger(0, 2);
// TODO 等待databend实现update && delete
// case UPDATE:
// return r.getInteger(0, globalState.getDbmsSpecificOptions().maxNumUpdates + 1);
case DELETE:
return r.getInteger(0, globalState.getDbmsSpecificOptions().maxNumDeletes + 1);
case CREATE_VIEW:
return r.getInteger(0, globalState.getDbmsSpecificOptions().maxNumViews + 1);
default:
throw new AssertionError(a);
}
}
public static class DatabendGlobalState extends SQLGlobalState<DatabendOptions, DatabendSchema> {
@Override
protected DatabendSchema readSchema() throws SQLException {
return DatabendSchema.fromConnection(getConnection(), getDatabaseName());
}
}
@Override
public void generateDatabase(DatabendGlobalState globalState) throws Exception {
for (int i = 0; i < Randomly.fromOptions(3, 4); i++) {
boolean success;
do {
SQLQueryAdapter qt = new DatabendTableGenerator().getQuery(globalState);
success = globalState.executeStatement(qt);
} while (!success);
}
if (globalState.getSchema().getDatabaseTables().isEmpty()) {
throw new IgnoreMeException(); // TODO
}
StatementExecutor<DatabendGlobalState, Action> se = new StatementExecutor<>(globalState, Action.values(),
DatabendProvider::mapActions, (q) -> {
if (globalState.getSchema().getDatabaseTables().isEmpty()) {
throw new IgnoreMeException();
}
});
se.executeStatements(); // 增删改一些数据（按权重随机选取算法）
}
@Override
public SQLConnection createDatabase(DatabendGlobalState globalState) throws SQLException {
String username = globalState.getOptions().getUserName();
String password = globalState.getOptions().getPassword();
String host = globalState.getOptions().getHost();
int port = globalState.getOptions().getPort();
if (host == null) {
host = DatabendOptions.DEFAULT_HOST;
}
if (port == MainOptions.NO_SET_PORT) {
port = DatabendOptions.DEFAULT_PORT;
}
String databaseName = globalState.getDatabaseName();
String url = String.format("jdbc:mysql://%s:%d?serverTimezone=UTC&useSSL=false&allowPublicKeyRetrieval=true",
host, port);
Connection con = DriverManager.getConnection(url, username, password);
try (Statement s = con.createStatement()) {
s.execute("DROP DATABASE IF EXISTS " + databaseName);
globalState.getState().logStatement("DROP DATABASE IF EXISTS " + databaseName);
s.execute("CREATE DATABASE " + databaseName);
globalState.getState().logStatement("CREATE DATABASE " + databaseName);
s.execute("USE " + databaseName);
globalState.getState().logStatement("USE " + databaseName);
}
if (DatabendBugs.bug15569) {
con.close();
String urlWithRetry = String.format(
"jdbc:mysql://%s:%d/%s?serverTimezone=UTC&useSSL=false&allowPublicKeyRetrieval=true&autoReconnect=true",
host, port, databaseName);
con = DriverManager.getConnection(urlWithRetry, username, password);
}
return new SQLConnection(con);
}
@Override
public String getDBMSName() {
return "databend"; // 用于DatabendOptions
}
}