node-java/src-java/node/NodeDynamicProxyClass.java at master · DarkSorrow/node-java · GitHub

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package node;

import java.lang.reflect.Method;

public class NodeDynamicProxyClass implements java.lang.reflect.InvocationHandler {

private static final Method EQUALS;

private static final Method HASHCODE;

static {

try {

EQUALS = Object.class.getMethod("equals", Object.class);

HASHCODE = Object.class.getMethod("hashCode");

} catch (NoSuchMethodException e) {

throw new ExceptionInInitializerError(e);

}

private native Object callJs(long ptr, java.lang.reflect.Method m, Object[] args) throws Throwable;

private native void unref(long ptr) throws Throwable;

public final long ptr;

public NodeDynamicProxyClass(String path, long ptr) {

try{

Runtime.getRuntime().load(path);

}catch(Exception e){

System.out.println(e.toString());

}

this.ptr = ptr;

}

@Override

public Object invoke(Object proxy, java.lang.reflect.Method m, Object[] args) throws Throwable

{

try {

Object result = callJs(this.ptr, m, args);

//if(result == null) {

// System.out.println("invoke: null");

//} else {

// System.out.println("invoke: " + result + " class: " + result.getClass() + " to string: " + result.toString());

//}

return result;

} catch (NoSuchMethodError e) {

// use 'vanilla' implementations otherwise - the object that persists between multiple invocations is

// 'this', not the 'proxy' argument, so we operate on this.

if (EQUALS.equals(m)) {

// need to check if the arg is a Proxy, and if so, if its invocation handler == this!

return args[0] == proxy;

} else if (HASHCODE.equals(m)) {

return System.identityHashCode(proxy);

} else if ("unref".equals(m.getName()) && m.getParameterTypes().length == 0 && m.getReturnType() == Void.TYPE) {

this.unref();

}

throw e;

}

public void unref() throws Throwable {

unref(this.ptr);

}

node-java/src-java/node/NodeDynamicProxyClass.java at master · DarkSorrow/node-java · GitHub

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