protected Result executeQuery(String mdx, Connection connection) {
Query query = connection.parseQuery(mdx);
query.setResultStyle(ResultStyle.LIST);
return connection.execute(query);
}
/**
* During MDX query parse and execution, checks that the query results (or does not result) in a
* particular SQL statement being generated.
*
* <p>Parses and executes the MDX query once for each SQL pattern in the current dialect. If there
* are multiple patterns, runs the MDX query multiple times, and expects to see each SQL statement
* appear. If there are no patterns in this dialect, the test trivially succeeds.
*
* @param testContext non-default test context if required
* @param mdxQuery MDX query
* @param patterns Set of patterns
* @param negative false to assert if SQL is generated; true to assert if SQL is NOT generated
* @param bypassSchemaCache whether to grab a new connection and bypass the schema cache before
* parsing the MDX query
* @param clearCache whether to clear cache before executing the MDX query
*/
protected void assertQuerySqlOrNot(
TestContext testContext,
String mdxQuery,
SqlPattern[] patterns,
boolean negative,
boolean bypassSchemaCache,
boolean clearCache) {
Connection connection = testContext.getConnection();
mdxQuery = testContext.upgradeQuery(mdxQuery);
// Run the test once for each pattern in this dialect.
// (We could optimize and run it once, collecting multiple queries, and
// comparing all queries at the end.)
Dialect dialect = testContext.getDialect();
Dialect.DatabaseProduct d = dialect.getDatabaseProduct();
boolean patternFound = false;
for (SqlPattern sqlPattern : patterns) {
if (!sqlPattern.hasDatabaseProduct(d)) {
// If the dialect is not one in the pattern set, skip the
// test. If in the end no pattern is located, print a warning
// message if required.
continue;
}
patternFound = true;
String sql = sqlPattern.getSql();
String trigger = sqlPattern.getTriggerSql();
sql = dialectize(d, sql);
trigger = dialectize(d, trigger);
// Create a dummy DataSource which will throw a 'bomb' if it is
// asked to execute a particular SQL statement, but will otherwise
// behave exactly the same as the current DataSource.
RolapUtil.setHook(new TriggerHook(trigger));
Bomb bomb = null;
try {
if (bypassSchemaCache) {
connection = testContext.withSchemaPool(false).getConnection();
}
final Query query = connection.parseQuery(mdxQuery);
if (clearCache) {
clearCache((RolapCube) query.getCube());
}
final Result result = connection.execute(query);
Util.discard(result);
bomb = null;
} catch (Bomb e) {
bomb = e;
} catch (RuntimeException e) {
// Walk up the exception tree and see if the root cause
// was a SQL bomb.
bomb = Util.getMatchingCause(e, Bomb.class);
if (bomb == null) {
throw e;
}
} finally {
RolapUtil.setHook(null);
}
if (negative) {
if (bomb != null) {
fail("forbidden query [" + sql + "] detected");
}
} else {
if (bomb == null) {
fail("expected query [" + sql + "] did not occur");
}
assertEquals(
replaceQuotes(sql.replaceAll("\r\n", "\n")),
replaceQuotes(bomb.sql.replaceAll("\r\n", "\n")));
}
}
// Print warning message that no pattern was specified for the current
// dialect.
if (!patternFound) {
String warnDialect = MondrianProperties.instance().WarnIfNoPatternForDialect.get();
if (warnDialect.equals(d.toString())) {
System.out.println(
"[No expected SQL statements found for dialect \""
+ dialect.toString()
+ "\" and test not run]");
}
}
}