/*
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* and open the template in the editor.
*/
package cn.com.refects;
import cn.com.codes.BricksMessagesCodes;
import cn.com.exceptions.AppException;
import java.lang.reflect.InvocationTargetException;
/**
*
* @author kete
*/
public class InstanceCreator {
private static final String CLASS_NAME_IMPL = "Impl";
private static final String PACKAGE_IMPL = ".impl.";
/**
* 实类化,取默认的实现包名，及默认的实现类名
* 默认包名：clazz.getPackage()+".impl"
* 默认的类名：clazz.getSimpleName()+"Impl"
* @param clazz
* @return
*/
public static Object instance(Class<?> clazz) {
return instance(clazz, PACKAGE_IMPL, CLASS_NAME_IMPL, null);
}
/**
* 获取类默认构造函数的实体对象
* @param className
* @return
*/
public static Object getInstance(String className) throws AppException {
Class<?> clazz = null;
try {
clazz = Class.forName(className);
} catch (ClassNotFoundException ex) {
throw new AppException(BricksMessagesCodes._E00006, ex, className);
}
return instance(clazz, ".", "", null);
}
/**
* 获取类默认构造函数的实体对象
* @param clazz
* @return
*/
public static Object getInstance(Class<?> clazz) throws AppException {
return instance(clazz, ".", "", null);
}
/**
* 实类化,取默认的实现包名，及默认的实现类名
* @param clazz
* @param parameters
* @return
*/
public static Object getInstance(Class<?> clazz, Object[] parameters) {
return instance(clazz, ".", "", parameters);
}
/**
* 实类化,取默认的实现包名，及默认的实现类名
* 默认包名：clazz.getPackage()+".impl"
* 默认的类名：clazz.getSimpleName()+"Impl"
* @param clazz
* @return
*/
public static Object instance(Class<?> clazz, Object[] parameters) {
return instance(clazz, PACKAGE_IMPL, CLASS_NAME_IMPL, parameters);
}
/**
* 实类化,取指定的实现包名，及指定的实现类名
* @param clazz
* @param packageSuffix
* @param nameSuffix
* @return
*/
public static Object instance(Class<?> clazz, String packageSuffix, String nameSuffix, Object[] parameters) {
String className = new StringBuffer().append(clazz.getPackage().getName()).append(packageSuffix).append(clazz.getSimpleName()).append(nameSuffix).toString();
try {
Class implClazz = Class.forName(className);
// 构造函数的参数
Class[] parameterTypes = null;
if (parameters != null) {
parameterTypes = new Class[parameters.length];
int idx = 0;
for (Object obj : parameters) {
parameterTypes[idx++] = obj.getClass();
}
}
// if (parameterTypes == null) {
// return implClazz.newInstance();
// }
return implClazz.getConstructor(parameterTypes).newInstance(parameters);
} catch (InstantiationException ex) {
// Logger.getLogger(InstanceCreator.class.getName()).log(Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
// Logger.getLogger(InstanceCreator.class.getName()).log(Level.SEVERE, null, ex);
} catch (IllegalArgumentException ex) {
// Logger.getLogger(InstanceCreator.class.getName()).log(Level.SEVERE, null, ex);
} catch (InvocationTargetException ex) {
// Logger.getLogger(InstanceCreator.class.getName()).log(Level.SEVERE, null, ex);
} catch (NoSuchMethodException ex) {
// Logger.getLogger(InstanceCreator.class.getName()).log(Level.SEVERE, null, ex);
} catch (SecurityException ex) {
// Logger.getLogger(InstanceCreator.class.getName()).log(Level.SEVERE, null, ex);
} catch (ClassNotFoundException ex) {
// Logger.getLogger(InstanceCreator.class.getName()).log(Level.SEVERE, null, ex);
}
return null;
}
}