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FelderaProvider.java
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package sqlancer.feldera;
import sqlancer.*;
import com.google.auto.service.AutoService;
import sqlancer.common.log.LoggableFactory;
import sqlancer.common.oracle.TestOracle;
import sqlancer.feldera.gen.FelderaInsertGenerator;
import sqlancer.feldera.gen.FelderaTableGenerator;
import sqlancer.feldera.gen.FelderaViewGenerator;
import sqlancer.feldera.query.FelderaOtherQuery;
import sqlancer.feldera.query.FelderaQueryProvider;
import java.util.List;
import java.util.Objects;
@AutoService(DatabaseProvider.class)
public class FelderaProvider extends ProviderAdapter<FelderaGlobalState, FelderaOptions, FelderaConnection> {
protected String url;
protected String pipelineName;
public FelderaProvider() {
super(FelderaGlobalState.class, FelderaOptions.class);
}
protected FelderaProvider(Class<FelderaGlobalState> globalClass, Class<FelderaOptions> optionClass) {
super(globalClass, optionClass);
}
protected static int mapActions(FelderaGlobalState globalState, sqlancer.feldera.FelderaProvider.Action a) {
Randomly r = globalState.getRandomly();
int nrPerformed;
if (Objects.requireNonNull(a) == sqlancer.feldera.FelderaProvider.Action.INSERT) {
nrPerformed = r.getInteger(0, globalState.getOptions().getMaxNumberInserts());
} else {
throw new AssertionError(a);
}
return nrPerformed;
}
@Override
protected void checkViewsAreValid(FelderaGlobalState globalState) {
}
@Override
public void generateDatabase(FelderaGlobalState globalState) throws Exception {
createTables(globalState, Randomly.fromOptions(4, 5, 6));
createViews(globalState, Randomly.fromOptions(4, 5, 6));
prepareTables(globalState);
}
@Override
public FelderaConnection createDatabase(FelderaGlobalState globalState) throws Exception {
url = globalState.getDbmsSpecificOptions().connection_url;
pipelineName = globalState.getDatabaseName();
try (FelderaConnection connection = new FelderaConnection(url, pipelineName)) {
try {
connection.get();
connection.shutdown();
} catch (Exception ignored) {
}
return connection;
}
}
protected void createTables(FelderaGlobalState globalState, int numTables) throws Exception {
for (int i = 0; i < numTables; i++) {
String tableName = String.format("t%d", i);
FelderaTableGenerator generator = new FelderaTableGenerator(tableName);
FelderaOtherQuery createTable = generator.generate();
FelderaSchema.FelderaTable table = generator.getTable();
globalState.addTable(table);
globalState.executeStatement(createTable);
}
}
protected void createViews(FelderaGlobalState globalState, int numViews) throws Exception {
for (int i = 0; i < numViews; i++) {
String viewName = String.format("v%d", i);
List<FelderaOtherQuery> views = FelderaViewGenerator.generate(globalState, viewName);
for (FelderaOtherQuery view : views) {
globalState.executeStatement(view);
globalState.addView(viewName);
}
}
}
protected void prepareTables(FelderaGlobalState globalState) throws Exception {
StatementExecutor<FelderaGlobalState, FelderaProvider.Action> se = new StatementExecutor<>(globalState,
FelderaProvider.Action.values(), sqlancer.feldera.FelderaProvider::mapActions, (q) -> {
if (globalState.getSchema().getDatabaseTables().isEmpty()) {
throw new IgnoreMeException();
}
});
se.executeStatements();
}
@Override
public String getDBMSName() {
return "feldera";
}
@Override
public Reproducer<FelderaGlobalState> generateAndTestDatabase(FelderaGlobalState globalState) throws Exception {
try {
generateDatabase(globalState);
globalState.getManager().incrementCreateDatabase();
TestOracle<FelderaGlobalState> oracle = getTestOracle(globalState);
try (StateToReproduce.OracleRunReproductionState localState = globalState.getState().createLocalState()) {
assert localState != null;
try {
oracle.check();
globalState.getManager().incrementSelectQueryCount();
} catch (IgnoreMeException ignored) {
} catch (AssertionError e) {
Reproducer<FelderaGlobalState> reproducer = oracle.getLastReproducer();
if (reproducer != null) {
return reproducer;
}
throw e;
}
localState.executedWithoutError();
}
} finally {
globalState.getConnection().close();
}
return null;
}
@Override
public LoggableFactory getLoggableFactory() {
return new FelderaLoggableFactory();
}
public enum Action implements AbstractAction<FelderaGlobalState> {
INSERT(FelderaInsertGenerator::getQuery);
private final FelderaQueryProvider<FelderaGlobalState> sqlQueryProvider;
Action(FelderaQueryProvider<FelderaGlobalState> sqlQueryProvider) {
this.sqlQueryProvider = sqlQueryProvider;
}
@Override
public FelderaOtherQuery getQuery(FelderaGlobalState state) throws Exception {
return new FelderaOtherQuery(sqlQueryProvider.getQuery(state).getQueryString(),
FelderaExpectedError.expectedErrors());
}
}
}