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package org.testng.internal;
import org.testng.log4testng.Logger;
import java.beans.BeanInfo;
import java.beans.IntrospectionException;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
/**
* Utility class for setting JavaBeans-style properties on instances.
*
* @author Cosmin Marginean, Apr 12, 2007
*/
public class PropertyUtils {
private static final Logger LOGGER = Logger.getLogger(PropertyUtils.class);
public static void setProperty(Object instance, String name, String value) {
if (instance == null) {
LOGGER.warn("Cannot set property " + name + " with value " + value + ". The target instance is null");
return;
}
Class propClass = getPropertyType(instance.getClass(), name);
if (propClass == null) {
LOGGER.warn("Cannot set property " + name + " with value " + value + ". Property class could not be found");
return;
}
Object realValue = Parameters.convertType(propClass, value, name);
//TODO: Here the property desc is serched again
setPropertyRealValue(instance, name, realValue);
}
public static Class getPropertyType(Class instanceClass, String propertyName) {
if (instanceClass == null) {
LOGGER.warn("Cannot retrieve property class for " + propertyName + ". Target instance class is null");
}
PropertyDescriptor propDesc = getPropertyDescriptor(instanceClass, propertyName);
return propDesc.getPropertyType();
}
private static PropertyDescriptor getPropertyDescriptor(Class targetClass, String propertyName) {
PropertyDescriptor result = null;
if (targetClass == null) {
LOGGER.warn("Cannot retrieve property " + propertyName + ". Class is null");
} else {
try {
BeanInfo beanInfo = Introspector.getBeanInfo(targetClass);
PropertyDescriptor[] propDescriptors = beanInfo.getPropertyDescriptors();
for (PropertyDescriptor propDesc : propDescriptors) {
if (propDesc.getName().equals(propertyName)) {
result = propDesc;
break;
}
}
} catch (IntrospectionException ie) {
LOGGER.warn("Cannot retrieve property " + propertyName + ". Cause is: " + ie);
}
}
return result;
}
public static void setPropertyRealValue(Object instance, String name, Object value) {
if (instance == null) {
LOGGER.warn("Cannot set property " + name + " with value " + value + ". Targe instance is null");
return;
}
PropertyDescriptor propDesc = getPropertyDescriptor(instance.getClass(), name);
if (propDesc == null) {
LOGGER.warn("Cannot set property " + name + " with value " + value + ". Property does not exist");
return;
}
Method method = propDesc.getWriteMethod();
try {
method.invoke(instance, new Object[]{value});
} catch (IllegalAccessException | InvocationTargetException iae) {
LOGGER.warn("Cannot set property " + name + " with value " + value + ". Cause " + iae);
}
}
}
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