/**
* 处理函数
*
* @param function 函数
* @return 函数值
* @throws Exception 类或属性不存在时抛出
*/
public Object doEvaluateFunction(Function function) throws Exception {
String name = function.getName();
int index = name.lastIndexOf('.');
Assert.assertTrue(index != -1, "不存在类:{0}", new Object[] {name});
String propertyName = name.substring(0, index); // 最点号前的作为类名或静态属性名
String className = propertyName;
Function callFunction =
new Function(name.substring(index + 1), function.getArgument()); // 将点号最后一截作为静态函数名
Class clazz = ClassUtils.safeForName(className);
Stack properties = new LinkedStack();
while (clazz == null && (index = className.lastIndexOf('.')) != -1) {
properties.push(className.substring(index + 1));
className = className.substring(0, index);
clazz = ClassUtils.safeForName(className);
}
Assert.assertNotNull(clazz, "不存在类:{0}", new Object[] {propertyName});
Object result = convertResult(clazz);
while (!properties.isEmpty()) {
result = dotBinaryOperatorHandler.doEvaluate(result, properties.pop());
}
return dotBinaryOperatorHandler.doEvaluate(result, callFunction);
}
/**
* 处理属性
*
* @param propertyName 属性或类名
* @return 类元或类静态属性值
* @throws Exception 类或属性不存在时抛出
*/
public Object doEvaluateProperties(String propertyName) throws Exception {
String className = propertyName;
Class clazz = ClassUtils.safeForName(className);
Stack properties = new LinkedStack();
int index;
while (clazz == null && (index = className.lastIndexOf('.')) != -1) {
properties.push(className.substring(index + 1));
className = className.substring(0, index);
clazz = ClassUtils.safeForName(className);
}
Assert.assertNotNull(clazz, "不存在类:{0}", new Object[] {propertyName});
Object result = convertResult(clazz);
while (!properties.isEmpty()) {
result = dotBinaryOperatorHandler.doEvaluate(result, properties.pop());
}
return result;
}
