// $Id: QueryTranslatorTestCase.java 11360 2007-03-29 12:47:49Z steve.ebersole@jboss.com $
package org.hibernate.test.hql;
import java.sql.Connection;
import java.sql.ParameterMetaData;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.StringTokenizer;
import java.util.TreeMap;
import junit.framework.ComparisonFailure;
import org.hibernate.EntityMode;
import org.hibernate.MappingException;
import org.hibernate.QueryException;
import org.hibernate.junit.functional.FunctionalTestCase;
import org.hibernate.classic.Session;
import org.hibernate.engine.SessionFactoryImplementor;
import org.hibernate.engine.query.HQLQueryPlan;
import org.hibernate.hql.QueryTranslator;
import org.hibernate.hql.QueryTranslatorFactory;
import org.hibernate.hql.ast.ASTQueryTranslatorFactory;
import org.hibernate.hql.ast.HqlToken;
import org.hibernate.hql.ast.QueryTranslatorImpl;
import org.hibernate.hql.ast.util.ASTPrinter;
import org.hibernate.hql.classic.ClassicQueryTranslatorFactory;
import org.hibernate.type.Type;
import org.hibernate.type.TypeFactory;
import org.hibernate.util.StringHelper;
/**
* Test case superclass for testing QueryTranslator implementations.
*
* @author josh Dec 6, 2004 8:21:21 AM
*/
public abstract class QueryTranslatorTestCase extends FunctionalTestCase {
public QueryTranslatorTestCase(String x) {
super( x );
// Create an instance of HqlToken, so that it will have an entry point outside the package. This
// will stop IDEA's code inspector from suggesting that HqlToken should be package local.
new HqlToken();
}
public String[] getMappings() {
return new String[] {
"hql/Animal.hbm.xml",
"hql/EntityWithCrazyCompositeKey.hbm.xml",
"hql/CrazyIdFieldNames.hbm.xml",
"hql/SimpleEntityWithAssociation.hbm.xml",
"hql/ComponentContainer.hbm.xml",
"batchfetch/ProductLine.hbm.xml",
"cid/Customer.hbm.xml",
"cid/Order.hbm.xml",
"cid/LineItem.hbm.xml",
"cid/Product.hbm.xml",
"legacy/Baz.hbm.xml",
"legacy/Category.hbm.xml",
"legacy/Commento.hbm.xml",
"legacy/Container.hbm.xml",
"legacy/Custom.hbm.xml",
"legacy/Eye.hbm.xml",
"legacy/Fee.hbm.xml",
"legacy/FooBar.hbm.xml",
"legacy/Fum.hbm.xml",
"legacy/Glarch.hbm.xml",
"legacy/Holder.hbm.xml",
"legacy/Many.hbm.xml",
"legacy/Marelo.hbm.xml",
"legacy/MasterDetail.hbm.xml",
"legacy/Middle.hbm.xml",
"legacy/Multi.hbm.xml",
"legacy/Nameable.hbm.xml",
"legacy/One.hbm.xml",
"legacy/Qux.hbm.xml",
"legacy/Simple.hbm.xml",
"legacy/SingleSeveral.hbm.xml",
"legacy/WZ.hbm.xml",
"legacy/UpDown.hbm.xml",
"compositeelement/Parent.hbm.xml",
"onetoone/joined/Person.hbm.xml",
"any/Properties.hbm.xml"
};
}
public boolean createSchema() {
return false;
}
public boolean recreateSchemaAfterFailure() {
return false;
}
public void assertTranslation(String hql) throws QueryException, MappingException {
assertTranslation( hql, null );
}
public void assertTranslation(String hql, boolean scalar) throws QueryException, MappingException {
assertTranslation( hql, null, scalar, null );
}
protected void assertTranslation(String hql, Map replacements) {
ComparisonFailure cf = null;
try {
assertTranslation( hql, replacements, false, null );
}
catch ( ComparisonFailure e ) {
e.printStackTrace();
cf = e;
}
if ("false".equals(System.getProperty("org.hibernate.test.hql.SkipScalarQuery","false"))) {
// Run the scalar translation anyway, even if there was a comparison failure.
assertTranslation( hql, replacements, true, null );
}
if (cf != null)
throw cf;
}
protected void runClassicTranslator(String hql) throws Exception {
SessionFactoryImplementor factory = getSessionFactoryImplementor();
Map replacements = new HashMap();
QueryTranslator oldQueryTranslator = null;
try {
QueryTranslatorFactory classic = new ClassicQueryTranslatorFactory();
oldQueryTranslator = classic.createQueryTranslator( hql, hql, Collections.EMPTY_MAP, factory );
oldQueryTranslator.compile( replacements, false );
}
catch ( Exception e ) {
e.printStackTrace();
throw e;
}
String oldsql = oldQueryTranslator.getSQLString();
System.out.println( "HQL : " + hql );
System.out.println( "OLD SQL: " + oldsql );
}
protected void assertTranslation(String hql, Map replacements, boolean scalar, String sql) {
SessionFactoryImplementor factory = getSessionFactoryImplementor();
// Create an empty replacements map if we don't have one.
if ( replacements == null ) {
replacements = new HashMap();
}
// steve -> note that the empty maps here represent the currently enabled filters...
QueryTranslator oldQueryTranslator = null;
Exception oldException = null;
try {
System.out.println("Compiling with classic QueryTranslator...");
QueryTranslatorFactory classic = new ClassicQueryTranslatorFactory();
oldQueryTranslator = classic.createQueryTranslator( hql, hql, Collections.EMPTY_MAP, factory );
oldQueryTranslator.compile( replacements, scalar );
}
catch ( QueryException e ) {
oldException = e;
}
catch ( MappingException e ) {
oldException = e;
}
QueryTranslator newQueryTranslator = null;
Exception newException = null;
try {
System.out.println("Compiling with AST QueryTranslator...");
newQueryTranslator = createNewQueryTranslator( hql, replacements, scalar );
}
catch ( QueryException e ) {
newException = e;
}
catch ( MappingException e ) {
newException = e;
}
// If the old QT threw an exception, the new one should too.
if ( oldException != null ) {
// oldException.printStackTrace();
assertNotNull( "New query translator did *NOT* throw an exception, the old one did : " + oldException, newException );
assertEquals( oldException.getMessage(), newException.getMessage() );
return; // Don't bother with the rest of the assertions.
}
else if ( newException != null ) {
newException.printStackTrace();
assertNull( "Old query translator did not throw an exception, the new one did", newException );
}
// -- check all of the outputs --
checkSql( oldQueryTranslator, newQueryTranslator, hql, scalar, sql );
checkQuerySpaces( oldQueryTranslator, newQueryTranslator );
checkReturnedTypes( oldQueryTranslator, newQueryTranslator );
checkColumnNames( oldQueryTranslator, newQueryTranslator );
}
protected QueryTranslatorImpl createNewQueryTranslator(String hql, Map replacements, boolean scalar) {
SessionFactoryImplementor factory = getSessionFactoryImplementor();
return createNewQueryTranslator( hql, replacements, scalar, factory );
}
private QueryTranslatorImpl createNewQueryTranslator(String hql, Map replacements, boolean scalar, SessionFactoryImplementor factory) {
QueryTranslatorFactory ast = new ASTQueryTranslatorFactory();
QueryTranslatorImpl newQueryTranslator = ( QueryTranslatorImpl ) ast.createQueryTranslator( hql, hql, Collections.EMPTY_MAP, factory );
newQueryTranslator.compile( replacements, scalar );
return newQueryTranslator;
}
protected QueryTranslatorImpl createNewQueryTranslator(String hql) {
return createNewQueryTranslator( hql, new HashMap(), false );
}
protected QueryTranslatorImpl createNewQueryTranslator(String hql, SessionFactoryImplementor sfimpl) {
return createNewQueryTranslator( hql, new HashMap(), false, sfimpl );
}
protected HQLQueryPlan createQueryPlan(String hql, boolean scalar) {
return new HQLQueryPlan( hql, scalar, Collections.EMPTY_MAP, getSessionFactoryImplementor() );
}
protected HQLQueryPlan createQueryPlan(String hql) {
return createQueryPlan( hql, false );
}
protected SessionFactoryImplementor getSessionFactoryImplementor() {
SessionFactoryImplementor factory = ( SessionFactoryImplementor ) getSessions();
if ( factory == null ) {
throw new NullPointerException( "Unable to create factory!" );
}
return factory;
}
private void checkColumnNames(QueryTranslator oldQueryTranslator, QueryTranslator newQueryTranslator) {
// Check the column names.
String[][] oldColumnNames = oldQueryTranslator.getColumnNames();
String[][] newColumnNames = newQueryTranslator.getColumnNames();
/*assertEquals( "Column name array is not the right length!", oldColumnNames.length, newColumnNames.length );
for ( int i = 0; i < oldColumnNames.length; i++ ) {
assertEquals( "Column name array [" + i + "] is not the right length!", oldColumnNames[i].length, newColumnNames[i].length );
for ( int j = 0; j < oldColumnNames[i].length; j++ ) {
assertEquals( "Column name [" + i + "," + j + "]", oldColumnNames[i][j], newColumnNames[i][j] );
}
}*/
}
private void checkReturnedTypes(QueryTranslator oldQueryTranslator, QueryTranslator newQueryTranslator) {
// Check the returned types for a regression.
Type[] oldReturnTypes = oldQueryTranslator.getReturnTypes();
Type[] returnTypes = newQueryTranslator.getReturnTypes();
assertEquals( "Return types array is not the right length!", oldReturnTypes.length, returnTypes.length );
for ( int i = 0; i < returnTypes.length; i++ ) {
assertNotNull( returnTypes[i] );
assertNotNull( oldReturnTypes[i] );
assertEquals( "Returned types did not match!", oldReturnTypes[i].getReturnedClass(), returnTypes[i].getReturnedClass() );
System.out.println("returnedType[" + i + "] = " + returnTypes[i] + " oldReturnTypes[" + i + "] = " + oldReturnTypes[i]);
}
}
private void checkQuerySpaces(QueryTranslator oldQueryTranslator, QueryTranslator newQueryTranslator) {
// Check the query spaces for a regression.
Set oldQuerySpaces = oldQueryTranslator.getQuerySpaces();
Set querySpaces = newQueryTranslator.getQuerySpaces();
assertEquals( "Query spaces is not the right size!", oldQuerySpaces.size(), querySpaces.size() );
for ( Iterator iterator = oldQuerySpaces.iterator(); iterator.hasNext(); ) {
Object o = iterator.next();
assertTrue( "New query space does not contain " + o + "!", querySpaces.contains( o ) );
}
}
protected Exception compileBadHql(String hql, boolean scalar) {
QueryTranslator newQueryTranslator;
Map replacements = null;
Exception newException = null;
SessionFactoryImplementor factory = getSessionFactoryImplementor();
try {
QueryTranslatorFactory ast = new ASTQueryTranslatorFactory();
newQueryTranslator = ast.createQueryTranslator( hql, hql, Collections.EMPTY_MAP, factory );
newQueryTranslator.compile( replacements, scalar );
}
catch ( QueryException e ) {
newException = e;
}
catch ( MappingException e ) {
newException = e;
}
assertNotNull( "Expected exception from compilation of '" + hql + "'!", newException );
return newException;
}
private void checkSql(QueryTranslator oldQueryTranslator, QueryTranslator newQueryTranslator, String hql, boolean scalar, String sql) {
String oldsql = oldQueryTranslator.getSQLString();
String newsql = newQueryTranslator.getSQLString();
System.out.println( "HQL : " + ASTPrinter.escapeMultibyteChars(hql) );
System.out.println( "OLD SQL: " + ASTPrinter.escapeMultibyteChars(oldsql) );
System.out.println( "NEW SQL: " + ASTPrinter.escapeMultibyteChars(newsql) );
if ( sql == null ) {
// Check the generated SQL. ASTPrinter.escapeMultibyteChars(
assertSQLEquals( "SQL is not the same as the old SQL (scalar=" + scalar + ")", oldsql, newsql );
}
else {
assertSQLEquals( "SQL is not the same as the expected SQL (scalar=" + scalar + ")", sql, newsql );
}
}
private void assertSQLEquals(String message, String oldsql, String newsql) {
Map oldMap = getTokens(oldsql);
Map newMap = getTokens(newsql);
if ( !oldMap.equals(newMap) ) {
assertEquals(message, oldsql, newsql);
}
//String oldsqlStripped = stripExtraSpaces( oldsql );
//String newsqlStripped = stripExtraSpaces( newsql );
//assertEquals( message, oldsqlStripped, newsqlStripped );
}
private Map getTokens(String sql) {
Map result = new TreeMap();
if (sql==null) return result;
result.put( "=", new Integer( StringHelper.countUnquoted(sql, '=') ) );
StringTokenizer tokenizer = new StringTokenizer( sql, "(),= " );
while ( tokenizer.hasMoreTokens() ) {
String fragment = tokenizer.nextToken();
/*if ( "on".equals(fragment) ) fragment = "and";
if ( "join".equals(fragment) || "inner".equals(fragment) ) continue;*/
Integer count = (Integer) result.get(fragment);
if ( count==null ) {
count = new Integer(1);
}
else {
count = new Integer( count.intValue() + 1 );
}
result.put(fragment, count);
}
return result;
}
private String stripExtraSpaces(String string) {
if ( string == null ) {
return null;
}
StringBuffer buffer = new StringBuffer( string.length() );
char[] chars = string.toCharArray();
int length = chars.length;
boolean wasSpace = false;
for ( int i = 0; i < length; i++ ) {
boolean isSpace = chars[i] == ' ';
if ( wasSpace && isSpace ) {
continue;
}
else {
buffer.append( chars[i] );
}
wasSpace = isSpace;
}
// StringTokenizer tokenizer = new StringTokenizer( string.trim(), " " );
// while ( tokenizer.hasMoreTokens() ) {
// final String fragment = tokenizer.nextToken();
// buffer.append( fragment );
// buffer.append( " " );
// }
//
return buffer.toString();
}
private void checkSqlByResultSet(
QueryTranslator oldQueryTranslator,
QueryTranslator newQueryTranslator,
Object[] binds
) {
String oldsql = oldQueryTranslator.getSQLString();
String newsql = newQueryTranslator.getSQLString();
Session session = openSession();
Connection connection = session.connection();
PreparedStatement oldps = null;
PreparedStatement newps = null;
ResultSet oldrs = null;
ResultSet newrs = null;
try {
try {
oldps = connection.prepareStatement( oldsql );
}
catch( Throwable t ) {
fail( "Unable to prepare sql generated by old parser : " + t );
}
try {
newps = connection.prepareStatement( newsql );
}
catch( Throwable t ) {
fail( "Unable to prepare sql generated by new parser : " + t );
}
checkBinds(oldps, newps, binds);
try {
oldrs = executeQuery( oldps, binds );
}
catch( Throwable t ) {
fail( "Unable to execute sql generated by old parser : " + t );
}
try {
newrs = executeQuery( newps, binds );
}
catch( Throwable t ) {
fail( "Unable to execute sql generated by new parser : " + t );
}
checkResults( oldrs, newrs );
}
finally {
// make *sure* the sql resources get cleaned up
release(oldrs);
release(newrs);
release(oldps);
release(newps);
release(session);
}
}
private void checkBinds(PreparedStatement oldps, PreparedStatement newps, Object[] binds) {
// Make sure the binds "feel" ok
try {
ParameterMetaData oldBindMetaData = oldps.getParameterMetaData();
ParameterMetaData newBindMetaData = newps.getParameterMetaData();
assertEquals( "Different bind parameter count", oldBindMetaData.getParameterCount(), newBindMetaData.getParameterCount() );
assertEquals( "Incorrect number of binds passed in", oldBindMetaData.getParameterCount(), binds == null ? 0 : binds.length );
for ( int i = 0, max = oldBindMetaData.getParameterCount(); i < max; i++ ) {
assertEquals( "Different bind types", oldBindMetaData.getParameterType(i), newBindMetaData.getParameterType(i) );
}
}
catch( Throwable t ) {
fail( "SQLException comparing binds : " + t );
}
}
private ResultSet executeQuery(PreparedStatement ps, Object[] binds) throws SQLException {
if ( binds != null ) {
for ( int i = 0, max = binds.length; i < max; i++ ) {
ps.setObject( i, binds[i] );
}
}
return ps.executeQuery();
}
private void checkResults(ResultSet oldrs, ResultSet newrs) {
ResultSetMetaData oldmeta = null;
ResultSetMetaData newmeta = null;
int colCount = 0;
Type[] types = null;
// first compare the metadata from the two results
try {
oldmeta = oldrs.getMetaData();
newmeta = newrs.getMetaData();
assertEquals( "Different column counts", oldmeta.getColumnCount(), newmeta.getColumnCount() );
colCount = oldmeta.getColumnCount();
types = new Type[colCount];
for ( int i = 1, max = colCount; i < max; i++ ) {
assertEquals( "Column names were different", oldmeta.getColumnName(i), newmeta.getColumnName(i) );
assertEquals( "Column types were different", oldmeta.getColumnType(i), newmeta.getColumnType(i) );
assertEquals( "Java types were different", oldmeta.getColumnClassName(i), newmeta.getColumnClassName(i) );
types[i] = TypeFactory.basic( oldmeta.getColumnClassName(i) );
}
}
catch( Throwable t ) {
fail( "Error comparing result set metadata" );
}
// Then compare the actual results
try {
while ( oldrs.next() & newrs.next() ) {
for ( int i = 1; i < colCount; i++ ) {
Object oldval = oldrs.getObject(i);
if ( oldrs.wasNull() ) oldval = null;
Object newval = newrs.getObject(i);
if ( newrs.wasNull() ) newval = null;
checkLogicalEquality( oldval, newval, types[i] );
}
}
// for "better reporting" purposes, make sure both result sets are fully exhausted
while ( oldrs.next() );
while ( newrs.next() );
assertEquals( "Different row counts", oldrs.getRow(), newrs.getRow() );
}
catch( Throwable t ) {
fail( "Error comparing result set structure" );
}
}
private void checkLogicalEquality(Object oldval, Object newval, Type type) {
if ( oldval == null && newval == null ) {
// two nulls are logically equivalent here...
return;
}
else {
assertTrue( "Different result values", type.isEqual(oldval, newval, EntityMode.POJO) );
}
}
private void release(PreparedStatement ps) {
if ( ps != null ) {
try {
ps.close();
}
catch( Throwable t ) {}
}
}
private void release(ResultSet rs) {
if ( rs != null ) {
try {
rs.close();
}
catch( Throwable t ) {}
}
}
private void release(Session session) {
if ( session != null ) {
try {
session.close();
}
catch( Throwable t ) {}
}
}
}
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