/*
* Copyright 2005 JBoss Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.drools.core.rule;
import java.beans.IntrospectionException;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.*;
import org.drools.core.base.ClassFieldAccessorCache;
import org.drools.core.base.ClassFieldAccessorStore;
import org.drools.core.base.ClassObjectType;
import org.drools.core.test.model.Cheese;
import org.drools.core.spi.InternalReadAccessor;
public class DeclarationTest {
ClassFieldAccessorStore store = new ClassFieldAccessorStore();
@Before
public void setUp() throws Exception {
store.setClassFieldAccessorCache( new ClassFieldAccessorCache( Thread.currentThread().getContextClassLoader() ) );
store.setEagerWire( true );
}
@Test
public void testDeclaration() throws IntrospectionException {
final InternalReadAccessor extractor = store.getReader( Cheese.class,
"type",
getClass().getClassLoader() );
final Pattern pattern = new Pattern( 5,
new ClassObjectType( Cheese.class ) );
// Bind the extractor to a decleration
// Declarations know the pattern they derive their value from
final Declaration declaration = new Declaration( "typeOfCheese",
extractor,
pattern );
assertEquals( "typeOfCheese",
declaration.getIdentifier() );
assertSame( String.class,
declaration.getExtractor().getExtractToClass() );
assertSame( extractor,
declaration.getExtractor() );
assertEquals( 5,
declaration.getPattern().getOffset() );
}
@Test
public void testGetFieldValue() throws IntrospectionException {
final InternalReadAccessor extractor = store.getReader( Cheese.class,
"type",
getClass().getClassLoader() );
final Pattern pattern = new Pattern( 5,
new ClassObjectType( Cheese.class ) );
// Bind the extractor to a decleration
// Declarations know the pattern they derive their value from
final Declaration declaration = new Declaration( "typeOfCheese",
extractor,
pattern );
// Create some facts
final Cheese cheddar = new Cheese( "cheddar",
5 );
// Check we can extract Declarations correctly
assertEquals( "cheddar",
declaration.getValue( null,
cheddar ) );
}
public static int getIndex(final Class clazz,
final String name) throws IntrospectionException {
final PropertyDescriptor[] descriptors = Introspector.getBeanInfo( clazz ).getPropertyDescriptors();
for ( int i = 0; i < descriptors.length; i++ ) {
if ( descriptors[i].getName().equals( name ) ) {
return i;
}
}
return -1;
}
}