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/*
* Copyright (C) 2003, 2008 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "jni_instance.h"
#include "jni_runtime.h"
#include "jni_utility.h"
#include <assert.h>
#ifdef NDEBUG
#define JS_LOG(formatAndArgs...) ((void)0)
#else
#define JS_LOG(formatAndArgs...) { \
fprintf (stderr, "%s:%d -- %s: ", __FILE__, __LINE__, __FUNCTION__); \
fprintf(stderr, formatAndArgs); \
}
#endif
using namespace JSC::Bindings;
JavaInstance::JavaInstance (jobject instance)
{
_instance = new JObjectWrapper (instance);
}
JavaInstance::~JavaInstance ()
{
}
#define NUM_LOCAL_REFS 64
bool JavaInstance::invokeMethod(NPIdentifier methodName, NPVariant* args, uint32_t count, NPVariant* resultValue)
{
int i;
jvalue *jArgs;
Method *method = 0;
size_t numMethods = methodList.size();
// Try to find a good match for the overloaded method. The
// fundamental problem is that JavaScript doesn have the
// notion of method overloading and Java does. We could
// get a bit more sophisticated and attempt to does some
// type checking as we as checking the number of parameters.
Method *aMethod;
for (size_t methodIndex = 0; methodIndex < numMethods; methodIndex++) {
aMethod = methodList[methodIndex];
if (aMethod->numParameters() == count) {
method = aMethod;
break;
}
}
if (method == 0) {
JS_LOG ("unable to find an appropiate method\n");
return jsUndefined();
}
const JavaMethod *jMethod = static_cast<const JavaMethod*>(method);
if (count > 0) {
jArgs = (jvalue *)malloc (count * sizeof(jvalue));
}
else
jArgs = 0;
for (i = 0; i < count; i++) {
JavaParameter* aParameter = jMethod->parameterAt(i);
jArgs[i] = convertNPVariantToJValue(args[i], aParameter->getJNIType(), aParameter->type());
}
jvalue result;
// The following code can be conditionally removed once we have a Tiger update that
// contains the new Java plugin. It is needed for builds prior to Tiger.
{
jobject obj = _instance->_instance;
switch (jMethod->JNIReturnType()){
case void_type:
callJNIMethodIDA<void>(obj, jMethod->methodID(obj), jArgs);
break;
case object_type:
result.l = callJNIMethodIDA<jobject>(obj, jMethod->methodID(obj), jArgs);
break;
case boolean_type:
result.z = callJNIMethodIDA<jboolean>(obj, jMethod->methodID(obj), jArgs);
break;
case byte_type:
result.b = callJNIMethodIDA<jbyte>(obj, jMethod->methodID(obj), jArgs);
break;
case char_type:
result.c = callJNIMethodIDA<jchar>(obj, jMethod->methodID(obj), jArgs);
break;
case short_type:
result.s = callJNIMethodIDA<jshort>(obj, jMethod->methodID(obj), jArgs);
break;
case int_type:
result.i = callJNIMethodIDA<jint>(obj, jMethod->methodID(obj), jArgs);
break;
case long_type:
result.j = callJNIMethodIDA<jlong>(obj, jMethod->methodID(obj), jArgs);
break;
case float_type:
result.f = callJNIMethodIDA<jfloat>(obj, jMethod->methodID(obj), jArgs);
break;
case double_type:
result.d = callJNIMethodIDA<jdouble>(obj, jMethod->methodID(obj), jArgs);
break;
case invalid_type:
default:
break;
}
}
switch (jMethod->JNIReturnType()){
case void_type: {
VOID_TO_NPVARIANT(*resultValue);
}
break;
case object_type: {
if (result.l != 0) {
OBJECT_TO_NPVARIANT(JavaObjectToNPObject(JavaInstance::create(result.l)), *resultValue);
}
else {
VOID_TO_NPVARIANT(*resultValue);
}
}
break;
case boolean_type: {
BOOLEAN_TO_NPVARIANT(result.z, *resultValue);
}
break;
case byte_type: {
INT32_TO_NPVARIANT(result.b, *resultValue);
}
break;
case char_type: {
INT32_TO_NPVARIANT(result.c, *resultValue);
}
break;
case short_type: {
INT32_TO_NPVARIANT(result.s, *resultValue);
}
break;
case int_type: {
INT32_TO_NPVARIANT(result.i, *resultValue);
}
break;
// TODO(fqian): check if cast to double is needed.
case long_type: {
DOUBLE_TO_NPVARIANT(result.j, *resultValue);
}
break;
case float_type: {
DOUBLE_TO_NPVARIANT(result.f, *resultValue);
}
break;
case double_type: {
DOUBLE_TO_NPVARIANT(result.d, *resultValue);
}
break;
case invalid_type:
default: {
VOID_TO_NPVARIANT(*resultValue);
}
break;
}
free (jArgs);
return resultValue;
}
JObjectWrapper::JObjectWrapper(jobject instance)
: _refCount(0)
{
assert (instance != 0);
// Cache the JNIEnv used to get the global ref for this java instanace.
// It'll be used to delete the reference.
_env = getJNIEnv();
_instance = _env->NewGlobalRef (instance);
JS_LOG ("new global ref %p for %p\n", _instance, instance);
if (_instance == NULL) {
fprintf (stderr, "%s: could not get GlobalRef for %p\n", __PRETTY_FUNCTION__, instance);
}
}
JObjectWrapper::~JObjectWrapper() {
JS_LOG ("deleting global ref %p\n", _instance);
_env->DeleteGlobalRef (_instance);
}
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