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/*
* Copyright (c) 2008, 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package vm.share.options;
import java.util.HashMap;
import java.util.Map;
import nsk.share.TestBug;
/**
* This class allows user to create an {@link ObjectFactory} implementation
* via @{@link vm.share.options.Factory} annotation. See the source code of
* {@link vm.share.options.test.BasicObjectFactoryUsageExample} and
* {@link vm.share.options.test.ExampleWithNonprimitiveOptions}.
* @see Factory
* @see FClass
* @see ObjectFactory
*/
public class BasicOptionObjectFactory<T> implements OptionObjectFactory<T>
{
public String getPlaceholder()
{
return getAnnotaion().placeholder_text();
}
public String[] getPossibleValues()
{
return getTypesMap().keySet().toArray(new String[0]);
}
public String getDescription()
{
return getAnnotaion().description().equals(Factory.defDescription)? null : getAnnotaion().description();
}
public String getDefaultValue()
{
return getAnnotaion().default_value().equals(Factory.defDefaultValue)? null :
getAnnotaion().default_value();
}
public String getParameterDescription(String key)
{
return getTypesMap().get(key).description();
}
// shouldn't value be named key?
public T getObject(String value)
{
try
{
@SuppressWarnings(value="unchecked")
T result = (T) getTypesMap().get(value).type().newInstance();
return result;
} catch (InstantiationException ex)
{
throw new TestBug("Error while trying to instantiate via " + this.getClass() + " for key " + value, ex);
} catch (IllegalAccessException ex)
{
throw new TestBug("Error while trying to instantiate via " + this.getClass() + " for key " + value, ex);
}
}
protected Factory getAnnotaion()
{
if(!this.getClass().isAnnotationPresent(Factory.class))
throw new TestBug(" Found an unnotated BasicObjectFactory subclass.");
Factory factoryAnn = this.getClass().getAnnotation(Factory.class);
return factoryAnn;
}
protected Map<String, FClass> getTypesMap()
{ // probably there could be some lazy initialization, but I decided not to deal with that.
FClass[] types = getAnnotaion().classlist();
Map<String, FClass> typesMap = new HashMap<String, FClass>(types.length);
for (FClass type : types)
{
typesMap.put(type.key(), type);
}
return typesMap;
}
// see ExampleWithNonprimitiveOptions instead.
// public void test()
// {
// if(!this.getClass().isAnnotationPresent(Factory.class))
// throw new RuntimeException(" Found an unnotated BasicObjectFactory subclass.");
// Factory factoryAnn = this.getClass().getAnnotation(Factory.class);
// System.out.println(" placeholder_text " + factoryAnn.placeholder_text());
// System.out.println(" default_value " +
// (factoryAnn.default_value().equals(Factory.def_default_value) ? null : factoryAnn.default_value()) );
//
// }
//
// @Factory(placeholder_text="number", default_value="test",
// classlist = {
// @FClass( key="int", description="integer", type=int.class),
// @FClass( key="boolean", description="boolean", type=boolean.class)
// } )
// public static class testOF extends BasicObjectFactory<BasicObjectFactory> {}
//
//// @Factory(placeholder_text="placehldr1")
//// public static class testOF1 extends BasicObjectFactory<BasicObjectFactory> {}
//
//
// public static void main(String[] args)
// {
// BasicObjectFactory bof = new testOF();
// bof.test();
//// new testOF1().test();
//
// }
}
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