/**
* This file Copyright (c) 2010-2012 Magnolia International
* Ltd. (http://www.magnolia-cms.com). All rights reserved.
*
*
* This file is dual-licensed under both the Magnolia
* Network Agreement and the GNU General Public License.
* You may elect to use one or the other of these licenses.
*
* This file is distributed in the hope that it will be
* useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
* implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
* Redistribution, except as permitted by whichever of the GPL
* or MNA you select, is prohibited.
*
* 1. For the GPL license (GPL), you can redistribute and/or
* modify this file under the terms of the GNU General
* Public License, Version 3, as published by the Free Software
* Foundation. You should have received a copy of the GNU
* General Public License, Version 3 along with this program;
* if not, write to the Free Software Foundation, Inc., 51
* Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* 2. For the Magnolia Network Agreement (MNA), this file
* and the accompanying materials are made available under the
* terms of the MNA which accompanies this distribution, and
* is available at http://www.magnolia-cms.com/mna.html
*
* Any modifications to this file must keep this entire header
* intact.
*
*/
package info.magnolia.objectfactory;
import info.magnolia.cms.core.SystemProperty;
import info.magnolia.context.MgnlContext;
import info.magnolia.test.ComponentsTestUtil;
import info.magnolia.test.TestMagnoliaConfigurationProperties;
import info.magnolia.test.mock.MockComponentProvider;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.*;
import org.apache.commons.beanutils.ConstructorUtils;
import java.lang.reflect.Field;
import java.util.Date;
/**
* @version $Id$
*/
public class ClassesTest {
@Before
public void setUp() throws Exception {
SystemProperty.clear();
SystemProperty.setMagnoliaConfigurationProperties(new TestMagnoliaConfigurationProperties());
Components.setComponentProvider(new MockComponentProvider(SystemProperty.getProperties()));
resetCFP();
}
@After
public void tearDown() throws Exception {
resetCFP();
SystemProperty.clear();
Components.setComponentProvider(null);
ComponentsTestUtil.clear();
MgnlContext.setInstance(null);
}
private void resetCFP() throws NoSuchFieldException, IllegalAccessException {
// reset the classFactoryProvider field. TODO: really wish i could have made this one final ...
final Field cfpField = Classes.class.getDeclaredField("cfp");
cfpField.setAccessible(true);
cfpField.set(null, new Classes.ClassFactoryProvider(new DefaultClassFactory()));
}
@Test
public void testDefaultClassFactoryWorksJustFine() throws ClassNotFoundException {
final String s = Classes.newInstance("java.lang.String", "hello");
assertEquals("hello", s);
final ClassFactory cf = Classes.getClassFactory();
assertTrue(cf instanceof DefaultClassFactory);
}
@Test
public void testCanSetupADifferentClassFactory() throws ClassNotFoundException {
SystemProperty.setProperty(ClassFactory.class.getName(), TestClassFactory.class.getName());
final String s = Classes.newInstance("chalala", "hello");
// this validates we're indeed using our custom TestClassFactory, since "chalala" isn't a real class name, afaik.
assertEquals("hello", s);
final ClassFactory cf = Classes.getClassFactory();
assertTrue(cf instanceof TestClassFactory);
}
/*
@Test
public void testCanSetupADifferentClassFactoryThatNeedsComponents() throws ClassNotFoundException {
// TODO This test is ignored for now since registering components via SystemProperty is no longer supported.
SystemProperty.setProperty(ClassFactory.class.getName(), TestClassFactoryWithComponents.class.getName());
SystemProperty.setProperty(Whatever.class.getName(), Chenanigans.class.getName());
final String s = Classes.newInstance("chalala", "hello");
assertEquals("hello", s);
final Whatever w = Components.getSingleton(Whatever.class);
assertEquals(327, w.blah());
final ClassFactory cf = Classes.getClassFactory();
assertTrue(cf instanceof TestClassFactoryWithComponents);
final TestClassFactoryWithComponents cfc = (TestClassFactoryWithComponents) cf;
assertTrue(cfc.getWhatever() instanceof Chenanigans);
assertEquals(327, cfc.getWhatever().blah());
final Calendar now = Calendar.getInstance();
// a fairly vague comparison of those two dates
final Calendar then = Calendar.getInstance();
then.setTime(cfc.getDate());
assertEquals(now.get(Calendar.DAY_OF_YEAR), then.get(Calendar.DAY_OF_YEAR));
}
*/
public static interface Whatever {
int blah();
}
public static class Chenanigans implements Whatever {
@Override
public int blah() {
return 327;
}
}
/**
* forName only accepts test-specific names, and newInstance() implementations don't handle exceptions, don't check params/types and don't take any shortcut either.
*/
public static class TestClassFactory implements ClassFactory {
public TestClassFactory() {
}
@Override
public <C> Class<C> forName(String className) throws ClassNotFoundException {
if ("chalala".equals(className)) {
return (Class<C>) String.class;
}
throw new IllegalStateException("unexpected call with " + className);
}
@Override
public <T> T newInstance(Class<T> c, Object... params) {
try {
return (T) ConstructorUtils.invokeConstructor(c, params);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
@Override
public <T> T newInstance(Class<T> c, Class<?>[] argTypes, Object... params) {
try {
return (T) ConstructorUtils.invokeExactConstructor(c, params, argTypes);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
}
public static class TestClassFactoryWithComponents extends TestClassFactory {
private final ClassFactory delegate;
private final Whatever whatever;
private final Date date;
public TestClassFactoryWithComponents() throws ClassNotFoundException {
this.delegate = new DefaultClassFactory();
this.whatever = Components.getSingleton(Whatever.class);
this.date = Classes.newInstance("java.util.Date");
}
public Whatever getWhatever() {
return whatever;
}
public Date getDate() {
return date;
}
}
}