/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
package org.hibernate.test.schemaupdate.uniqueconstraint;
import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.util.EnumSet;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.hibernate.boot.MetadataSources;
import org.hibernate.boot.registry.StandardServiceRegistry;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.boot.spi.MetadataImplementor;
import org.hibernate.cfg.Environment;
import org.hibernate.dialect.DB2Dialect;
import org.hibernate.dialect.Dialect;
import org.hibernate.engine.jdbc.env.spi.JdbcEnvironment;
import org.hibernate.tool.hbm2ddl.SchemaExport;
import org.hibernate.tool.schema.TargetType;
import org.hibernate.testing.TestForIssue;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import static org.hamcrest.core.Is.is;
import static org.junit.Assert.assertThat;
/**
* @author Andrea Boriero
*/
public class UniqueConstraintGenerationTest {
private File output;
private MetadataImplementor metadata;
StandardServiceRegistry ssr;
@Before
public void setUp() throws Exception {
output = File.createTempFile( "update_script", ".sql" );
output.deleteOnExit();
ssr = new StandardServiceRegistryBuilder()
.applySetting( Environment.HBM2DDL_AUTO, "none" )
.build();
metadata = (MetadataImplementor) new MetadataSources( ssr )
.addResource( "org/hibernate/test/schemaupdate/uniqueconstraint/TestEntity.hbm.xml" )
.buildMetadata();
metadata.validate();
}
@After
public void tearDown() {
StandardServiceRegistryBuilder.destroy( ssr );
}
@Test
@TestForIssue(jiraKey = "HHH-11101")
public void testUniqueConstraintIsGenerated() throws Exception {
new SchemaExport()
.setOutputFile( output.getAbsolutePath() )
.create( EnumSet.of( TargetType.SCRIPT ), metadata );
if ( getDialect() instanceof DB2Dialect) {
assertThat(
"The test_entity_item table unique constraint has not been generated",
isCreateUniqueIndexGenerated("test_entity_item", "item"),
is(true)
);
}
else {
assertThat(
"The test_entity_item table unique constraint has not been generated",
isUniqueConstraintGenerated("test_entity_item", "item"),
is(true)
);
}
assertThat(
"The test_entity_children table unique constraint has not been generated",
isUniqueConstraintGenerated( "test_entity_children", "child" ),
is( true )
);
}
private Dialect getDialect() {
return ssr.getService(JdbcEnvironment.class).getDialect();
}
private boolean isUniqueConstraintGenerated(String tableName, String columnName) throws IOException {
boolean matches = false;
final String regex = getDialect().getAlterTableString( tableName ) + " add constraint uk_(.)* unique \\(" + columnName + "\\)";
final String fileContent = new String( Files.readAllBytes( output.toPath() ) ).toLowerCase();
final String[] split = fileContent.split( System.lineSeparator() );
Pattern p = Pattern.compile( regex );
for ( String line : split ) {
final Matcher matcher = p.matcher( line );
if ( matcher.matches() ) {
matches = true;
}
}
return matches;
}
private boolean isCreateUniqueIndexGenerated(String tableName, String columnName) throws IOException {
boolean matches = false;
String regex = "create unique index uk_(.)* on " + tableName + " \\(" + columnName + "\\)";
final String fileContent = new String( Files.readAllBytes( output.toPath() ) ).toLowerCase();
final String[] split = fileContent.split( System.lineSeparator() );
Pattern p = Pattern.compile( regex );
for ( String line : split ) {
final Matcher matcher = p.matcher( line );
if ( matcher.matches() ) {
matches = true;
}
}
return matches;
}
}