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package org.glassfish.grizzly.config;
import org.jvnet.hk2.config.Attribute;
import org.jvnet.hk2.config.ConfigBeanProxy;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.util.HashMap;
import java.util.Map;
public class DefaultProxy implements InvocationHandler {
private final Map<String, Method> methods;
private final ConfigBeanProxy parent;
DefaultProxy(ConfigBeanProxy parent, final Class<? extends ConfigBeanProxy> sslClass) {
this.parent = parent;
methods = new HashMap<String, Method>();
final Method[] list = sslClass.getDeclaredMethods();
for (Method method : list) {
if (method.getName().startsWith("get") || method.getName().startsWith("is")) {
methods.put(method.getName(), method);
}
}
}
public ConfigBeanProxy getParent() {
return parent;
}
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
Object value = null;
if (methods.get(method.getName()) != null) {
final Attribute annotation = method.getAnnotation(Attribute.class);
if (annotation != null) {
String defValue = annotation.defaultValue().trim();
if (defValue.length() > 0) {
value = defValue;
}
}
} else if ("getParent".equals(method.getName())) {
value = getParent();
} else {
throw new GrizzlyConfigException(String.format("Method not implemented for a %s: %s", getClass().getName(),
method.getName()));
}
return value;
}
public static ConfigBeanProxy createDummyProxy(ConfigBeanProxy parent,
final Class<? extends ConfigBeanProxy> type) {
return (ConfigBeanProxy) Proxy.newProxyInstance(type.getClassLoader(), new Class[]{type},
new DefaultProxy(parent, type));
}
}