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Copy pathjava.cpp
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133 lines (106 loc) · 3.61 KB
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#include "java.h"
#include <string.h>
#include <algorithm>
#include "javaObject.h"
/*static*/ v8::Persistent<v8::FunctionTemplate> Java::s_ct;
/*static*/ void Java::Init(v8::Handle<v8::Object> target) {
v8::HandleScope scope;
v8::Local<v8::FunctionTemplate> t = v8::FunctionTemplate::New(New);
s_ct = v8::Persistent<v8::FunctionTemplate>::New(t);
s_ct->InstanceTemplate()->SetInternalFieldCount(1);
s_ct->SetClassName(v8::String::NewSymbol("Java"));
NODE_SET_PROTOTYPE_METHOD(s_ct, "newInstance", newInstance);
target->Set(v8::String::NewSymbol("Java"), s_ct->GetFunction());
}
/*static*/ v8::Handle<v8::Value> Java::New(const v8::Arguments& args) {
v8::HandleScope scope;
Java *self = new Java();
self->Wrap(args.This());
return args.This();
}
Java::Java() {
this->m_jvm = NULL;
this->m_env = NULL;
createJVM(&this->m_jvm, &this->m_env);
}
Java::~Java() {
}
/*static*/ void Java::createJVM(JavaVM** jvm, JNIEnv** env) {
JavaVM* jvmTemp;
JavaVMInitArgs args;
args.version = JNI_VERSION_1_4;
JNI_GetDefaultJavaVMInitArgs(&args);
JNI_CreateJavaVM(&jvmTemp, (void **)env, &args);
*jvm = jvmTemp;
}
/*static*/ v8::Handle<v8::Value> Java::newInstance(const v8::Arguments& args) {
v8::HandleScope scope;
Java* self = node::ObjectWrap::Unwrap<Java>(args.This());
// argument - className
if(args.Length() < 1 || !args[0]->IsString()) {
return ThrowException(v8::Exception::TypeError(v8::String::New("Argument 0 must be a string")));
}
v8::Local<v8::String> classNameObj = v8::Local<v8::String>::Cast(args[0]);
v8::String::AsciiValue className(classNameObj);
// argument - callback
v8::Handle<v8::Value> callback;
if(args[args.Length()-1]->IsFunction()) {
callback = args[args.Length()-1];
} else {
callback = v8::Null();
}
// run
NewInstanceBaton* baton = new NewInstanceBaton(self, *className, callback);
eio_custom(EIO_NewInstance, EIO_PRI_DEFAULT, EIO_AfterNewInstance, baton);
ev_ref(EV_DEFAULT_UC);
return v8::Undefined();
}
/*static*/ void Java::EIO_NewInstance(eio_req* req) {
NewInstanceBaton* baton = static_cast<NewInstanceBaton*>(req->data);
JNIEnv *env = javaAttachCurrentThread(baton->m_java->getJvm());
baton->run(env);
javaDetachCurrentThread(baton->m_java->getJvm());
}
/*static*/ int Java::EIO_AfterNewInstance(eio_req* req) {
NewInstanceBaton* baton = static_cast<NewInstanceBaton*>(req->data);
ev_unref(EV_DEFAULT_UC);
baton->doCallback();
delete baton;
return 0;
}
NewInstanceBaton::NewInstanceBaton(Java* java, const char *className, v8::Handle<v8::Value> &callback) {
m_java = java;
m_className = className;
std::replace(m_className.begin(), m_className.end(), '.', '/');
m_callback = v8::Persistent<v8::Value>::New(callback);
m_java->Ref();
}
NewInstanceBaton::~NewInstanceBaton() {
m_callback.Dispose();
m_java->Unref();
}
void NewInstanceBaton::run(JNIEnv *env) {
jclass clazz = env->FindClass(m_className.c_str());
if(env->ExceptionCheck()) {
env->ExceptionDescribe(); // TODO: handle error
return;
}
jmethodID method = env->GetMethodID(clazz, "<init>", "()V"); // TODO: add arguments
if(env->ExceptionCheck()) {
env->ExceptionDescribe(); // TODO: handle error
return;
}
m_result = env->NewObject(clazz, method);
if(env->ExceptionCheck()) {
env->ExceptionDescribe(); // TODO: handle error
return;
}
}
void NewInstanceBaton::doCallback() {
if(m_callback->IsFunction()) {
v8::Handle<v8::Value> argv[2];
argv[0] = v8::Undefined();
argv[1] = JavaObject::New(m_java, m_result);
v8::Function::Cast(*this->m_callback)->Call(v8::Context::GetCurrent()->Global(), 2, argv);
}
}