package net.csdn.junit;
import com.google.inject.Injector;
import javassist.CtClass;
import net.csdn.ServiceFramwork;
import net.csdn.jpa.JPA;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
/**
* BlogInfo: WilliamZhu
* Date: 12-6-17
* Time: 下午10:21
*/
public class IocTest {
protected static Injector injector = ServiceFramwork.injector;
public static boolean checkClassLoaded(String name) throws Exception {
java.lang.reflect.Method m = ClassLoader.class.getDeclaredMethod("findLoadedClass", new Class[]{String.class});
m.setAccessible(true);
ClassLoader cl = ClassLoader.getSystemClassLoader();
Object test1 = m.invoke(cl, name);
return test1 != null;
}
public static void initEnv(Class classLoader) {
try {
ServiceFramwork.mode = ServiceFramwork.Mode.test;
ServiceFramwork.scanService.setLoader(classLoader);
CtClass ctClass = ServiceFramwork.classPool.get("net.csdn.bootstrap.Bootstrap");
if (checkClassLoaded(ctClass.getName())) {
return;
}
//加载Guice容器
Method method = ctClass.toClass().getDeclaredMethod("configureSystem");
method.setAccessible(true);
method.invoke(null);
injector = ServiceFramwork.injector;
} catch (Exception e) {
e.printStackTrace();
}
}
public void dbCommit() {
JPA.getJPAConfig().getJPAContext().closeTx(false);
}
public void commitTransaction() {
dbCommit();
}
/*
因为很多Service是private的。有时候我们需要替换掉一些Service对象。比如HttpTransportService.
这样可以避免去访问真实的服务。否则，你可以继承BaseServiceWithJettyTest
*/
protected void mockService(Object targetObj, String fieldName, Object fieldValue) {
try {
Field field = targetObj.getClass().getDeclaredField(fieldName);
field.setAccessible(true);
field.set(targetObj, fieldValue);
} catch (Exception e) {
e.printStackTrace();
}
}
public <T> T findController(Class<T> clzz) {
return injector.getInstance(clzz);
}
public <T> T findService(Class<T> clzz) {
return injector.getInstance(clzz);
}
protected void mockService(Object targetObj, Class<?> fieldClass, Object fieldValue) {
try {
Field[] fields = targetObj.getClass().getDeclaredFields();
for (Field field : fields) {
Class temp = field.getType();
if (temp == fieldClass || fieldClass.isAssignableFrom(temp)) {
field.setAccessible(true);
field.set(targetObj, fieldValue);
return;
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
}