TestCGLibPropertyGetter.java

/*
 * *************************************************************************************
 *  Copyright (C) 2008 EsperTech, Inc. All rights reserved.                            *
 *  http://esper.codehaus.org                                                          *
 *  http://www.espertech.com                                                           *
 *  ---------------------------------------------------------------------------------- *
 *  The software in this package is published under the terms of the GPL license       *
 *  a copy of which has been included with this distribution in the license.txt file.  *
 * *************************************************************************************
 */

package com.espertech.esper.event.bean;

import java.lang.reflect.Method;

import junit.framework.TestCase;
import com.espertech.esper.support.bean.SupportBean;
import com.espertech.esper.support.bean.SupportBeanComplexProps;
import com.espertech.esper.support.event.SupportEventBeanFactory;
import com.espertech.esper.support.event.SupportEventAdapterService;
import com.espertech.esper.client.EventBean;
import com.espertech.esper.client.PropertyAccessException;
import com.asper.sources.net.sf.cglib.reflect.FastClass;
import com.asper.sources.net.sf.cglib.reflect.FastMethod;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

public class TestCGLibPropertyGetter extends TestCase
{
    EventBean unitTestBean;

    public void setUp()
    {
        SupportBean testEvent = new SupportBean();
        testEvent.setIntPrimitive(10);
        testEvent.setTheString("a");
        testEvent.setDoubleBoxed(null);

        unitTestBean = SupportEventBeanFactory.createObject(testEvent);
    }

    public void testGetter() throws Exception
    {
        CGLibPropertyGetter getter = makeGetter(SupportBean.class, "getIntPrimitive");
        assertEquals(10, getter.get(unitTestBean));

        getter = makeGetter(SupportBean.class, "getTheString");
        assertEquals("a", getter.get(unitTestBean));

        getter = makeGetter(SupportBean.class, "getDoubleBoxed");
        assertEquals(null, getter.get(unitTestBean));

        try
        {
            EventBean eventBean = SupportEventBeanFactory.createObject(new Object());
            getter.get(eventBean);
            assertTrue(false);
        }
        catch (PropertyAccessException ex)
        {
            // Expected
            log.debug(".testGetter Expected exception, msg=" + ex.getMessage());
        }
    }

    public void testPerformance() throws Exception
    {
        CGLibPropertyGetter getter = makeGetter(SupportBean.class, "getIntPrimitive");

        log.info(".testPerformance Starting test");

        for (int i = 0; i < 10; i++)   // Change to 1E8 for performance testing
        {
            int value = (Integer) getter.get(unitTestBean);
            assertEquals(10, value);
        }

        log.info(".testPerformance Done test");
    }

    private CGLibPropertyGetter makeGetter(Class clazz, String methodName) throws Exception
    {
        FastClass fastClass = FastClass.create(Thread.currentThread().getContextClassLoader(), clazz);
        Method method = clazz.getMethod(methodName, new Class[] {});
        FastMethod fastMethod = fastClass.getMethod(method);

        CGLibPropertyGetter getter = new CGLibPropertyGetter(method, fastMethod, SupportEventAdapterService.getService());

        return getter;
    }
    
    public void testGetterSpecial() throws Exception
    {
    	Class clazz = SupportBeanComplexProps.class;
        FastClass fastClass = FastClass.create(Thread.currentThread().getContextClassLoader(), clazz);
        
        // set up bean
        SupportBeanComplexProps bean = SupportBeanComplexProps.makeDefaultBean();

        // try mapped property
        Method method = clazz.getMethod("getMapped", new Class[] {String.class});
        FastMethod fastMethod = fastClass.getMethod(method);
    	Object result = fastMethod.invoke(bean, new Object[] {"keyOne"});
    	assertEquals("valueOne", result);
    	result = fastMethod.invoke(bean, new Object[] {"keyTwo"});
    	assertEquals("valueTwo", result);
    	
    	// try index property
        method = clazz.getMethod("getIndexed", new Class[] {int.class});
        fastMethod = fastClass.getMethod(method);
    	result = fastMethod.invoke(bean, new Object[] {0});
    	assertEquals(1, result);
    	result = fastMethod.invoke(bean, new Object[] {1});
    	assertEquals(2, result);

    	// try nested property
        method = clazz.getMethod("getNested", new Class[] {});
        fastMethod = fastClass.getMethod(method);               
        SupportBeanComplexProps.SupportBeanSpecialGetterNested nested = (SupportBeanComplexProps.SupportBeanSpecialGetterNested) fastMethod.invoke(bean, new Object[] {});

        Class nestedClazz = SupportBeanComplexProps.SupportBeanSpecialGetterNested.class;
        Method methodNested = nestedClazz.getMethod("getNestedValue", new Class[] {});
        FastClass fastClassNested = FastClass.create(Thread.currentThread().getContextClassLoader(), nestedClazz);        
        fastClassNested.getMethod(methodNested);        
    }

    private static final Log log = LogFactory.getLog(TestCGLibPropertyGetter.class);
}