| /*
|
| * Copyright 1999-2011 Alibaba Group.
|
| *
|
| * Licensed under the Apache License, Version 2.0 (the "License");
|
| * you may not use this file except in compliance with the License.
|
| * You may obtain a copy of the License at
|
| *
|
| * http://www.apache.org/licenses/LICENSE-2.0
|
| *
|
| * Unless required by applicable law or agreed to in writing, software
|
| * distributed under the License is distributed on an "AS IS" BASIS,
|
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
| * See the License for the specific language governing permissions and
|
| * limitations under the License.
|
| */
|
| package com.alibaba.dubbo.config.support; |
| |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| |
| import com.alibaba.dubbo.common.logger.Logger; |
| import com.alibaba.dubbo.common.logger.LoggerFactory; |
| import com.alibaba.dubbo.config.AbstractConfig; |
| |
| |
| /** |
| * @author haomin.liuhm |
| * |
| */ |
| public class RpcConfigGetSetProxy { |
| |
| private static final String RPC_CONFIG_BASECLASS = AbstractConfig.class.getName(); |
| private static final Logger log = LoggerFactory.getLogger(RpcConfigGetSetProxy.class); |
| |
| |
| private Object proxiee = null; |
| private Class<?> proxieeClass = null; |
| private Boolean isOk = false; |
| |
| public RpcConfigGetSetProxy(Object p){ |
| |
| if(p == null){ |
| return; |
| } |
| |
| if (!isKindOf(p.getClass(), RPC_CONFIG_BASECLASS)){ |
| return; |
| } |
| |
| proxiee = p; |
| //proxieeClass = c; |
| proxieeClass = p.getClass(); |
| isOk = true; |
| |
| } |
| |
| public boolean isOk(){ |
| return isOk; |
| } |
| |
| public Object setValue(String key, Object value){ |
| |
| if (!isOk()){ |
| return null; |
| } |
| |
| Method m = findSetMethod(key, value, proxieeClass); |
| return invoke(m, value); |
| } |
| |
| public Object getValue(String key){ |
| |
| if (!isOk()){ |
| return null; |
| } |
| |
| Method m = findGetMethod(key, proxieeClass); |
| return invoke(m, null); |
| } |
| |
| public static boolean isKindOf(Class<?> c, String type){ |
| |
| // get the class def for obj and type |
| |
| Class<?> tClass; |
| try { |
| tClass = Class.forName(type); |
| } catch (ClassNotFoundException e) { |
| return false; |
| } |
| |
| // check against type and superclasses |
| while ( c != null ) { |
| if ( c == tClass ) return true; |
| c = c.getSuperclass(); |
| } |
| |
| return false; |
| } |
| |
| private Object invoke(Method m, Object value) { |
| |
| if (m == null){ |
| return null; |
| } |
| |
| try { |
| if(value == null){ |
| return m.invoke(proxiee, (Object[])null); |
| }else{ |
| return m.invoke(proxiee, value); |
| } |
| } catch (IllegalArgumentException e) { |
| log.error("IllegalArgumentException", e); |
| return null; |
| } catch (IllegalAccessException e) { |
| log.error("IllegalAccessException", e); |
| return null; |
| } catch (InvocationTargetException e) { |
| log.error("InvocationTargetException", e); |
| return null; |
| } |
| } |
| |
| private Method findGetMethod(String key, Class<?> clazz){ |
| |
| Method m = findMethod(key, null, "get", clazz); |
| if (m != null){ |
| return m; |
| } |
| |
| return findMethod(key, null, "is", clazz); |
| } |
| |
| private Method findSetMethod(String key, Object value, Class<?> clazz){ |
| |
| return findMethod(key, value, "set", clazz); |
| } |
| |
| private Method getMethod(String methodName, Object value, Class<?> clazz){ |
| |
| try{ |
| if (value == null){ |
| return clazz.getMethod(methodName, (Class<?>[])null); |
| }else{ |
| return clazz.getMethod(methodName, value.getClass()); |
| } |
| }catch (SecurityException e) { |
| log.error("SecurityException: " + e.getMessage()); |
| return null; |
| } catch (NoSuchMethodException e) { |
| log.error("NoSuchMethodException: " + e.getMessage()); |
| return null; |
| } |
| } |
| |
| private Method findMethod(String key, Object value, String prefix, Class<?> clazz){ |
| |
| if(key.length() < 2){ |
| return null; |
| } |
| |
| key = key.substring(0,1).toUpperCase() + key.substring(1); |
| String methodName = prefix + key; |
| |
| return getMethod(methodName, value, clazz); |
| } |
| |
| } |