JNIEXPORT void JNICALL Java_org_mahu_proto_jnitest_nativewrapper_HelloJNI_processDataClass1_a
(JNIEnv *env, jobject obj, jobject dataClass1Obj) {
printf("### Java_org_mahu_proto_jnitest_nativewrapper_HelloJNI_processDataClass1\n");
JavaObject javaObjectDataClass(env,"org/mahu/proto/jnitest/nativewrapper/DataClass1", dataClass1Obj);
jboolean boolValue = javaObjectDataClass.getBooleanField("booleanValue");
javaObjectDataClass.setBooleanField("booleanValue",true);
jint intValue = javaObjectDataClass.getIntField("intValue");
javaObjectDataClass.setIntField("intValue",intValue*2);
JavaStringIn str(env,javaObjectDataClass.getStringField("stringValue"));
std::ostringstream os;
os << str.getString() << "-jni" << "\0";
javaObjectDataClass.setStringField("stringValue", os.str());
jfloat f = javaObjectDataClass.getFloatField("floatValue");
javaObjectDataClass.setFloatField("floatValue",f * 3);
jdouble d = javaObjectDataClass.getDoubleField("doubleValue");
javaObjectDataClass.setDoubleField("doubleValue",d/2);
JByteArrayPtrIn byteArray(env, javaObjectDataClass.getBytesField("byteArrayValue"));
if (byteArray.getNumberOfBytes()>0)
{
int nrOfBytes = byteArray.getNumberOfBytes()*2;
jbyte buf[nrOfBytes];
javaObjectDataClass.setBytesField("byteArrayValue", buf, nrOfBytes);
}
}
/*
* Class: org_mahu_proto_jnitest_nativewrapper_HelloJNI
* Method: processDataClass
* Signature: (Lorg/mahu/proto/jnitest/nativewrapper/DataClass;)V
*/
JNIEXPORT void JNICALL Java_org_mahu_proto_jnitest_nativewrapper_HelloJNI_processDataClass
(JNIEnv *env, jobject obj, jobject dataClassObj) {
printf("### Java_org_mahu_proto_jnitest_nativewrapper_HelloJNI_processDataClass\n");
JavaObject javaObjectDataClass(env,"org/mahu/proto/jnitest/nativewrapper/DataClass", dataClassObj);
jboolean boolValue = javaObjectDataClass.getBoolean("getBooleanValue");
javaObjectDataClass.setBoolean("setBooleanValue",true);
jint val = javaObjectDataClass.getInt("getIntValue");
if (boolValue) {
printf("Method getIntValue() return: %i\n", val);
}
javaObjectDataClass.setInt("setIntValue",val*2);
JavaStringIn str(env,javaObjectDataClass.getString("getStringValue"));
std::ostringstream os;
os << str.getString() << "-jni" << "\0";
javaObjectDataClass.setString("setStringValue", os.str());
jfloat f = javaObjectDataClass.getFloat("getFloatValue");
javaObjectDataClass.setFloat("setFloatValue",f * 3);
jdouble d = javaObjectDataClass.getDouble("getDoubleValue");
javaObjectDataClass.setDouble("setDoubleValue",d/2);
JByteArrayPtrIn byteArray(env, javaObjectDataClass.getBytes("getByteArrayValue"));
if (byteArray.getNumberOfBytes()>0)
{
int nrOfBytes = byteArray.getNumberOfBytes()*2;
jbyte buf[nrOfBytes];
javaObjectDataClass.setBytes("setByteArrayValue", buf, nrOfBytes);
}
}
/*
* Class: org_mahu_proto_jnitest_nativewrapper_HelloJNI
* Method: testSpecial
* Signature: (I)I
*/
jint Java_org_mahu_proto_jnitest_nativewrapper_HelloJNI_testSpecial_helper
(JNIEnv *env, jobject obj, jint test)
{
std::cout << "### Java_org_mahu_proto_jnitest_nativewrapper_HelloJNI_testSpecial, test " << test << std::endl;
switch(test) {
case 0: // call method on object that returns a string.
{
JavaObject javaObjectDataClass(env,"org/mahu/proto/jnitest/nativewrapper/DataClass");
jobject stringObj = javaObjectDataClass.getObject("getStringValue","()Ljava/lang/String;");
JavaObject stringJavaObj(env, "java/lang/String",stringObj);
jint length = stringJavaObj.getInt("length");
std::cout << "Length of string is: " << length << std::endl;
return 0;
}
case 1: // call field on object that returns a string.
{
JavaObject javaObjectDataClass(env,"org/mahu/proto/jnitest/nativewrapper/DataClass1");
jobject stringObj = javaObjectDataClass.getObjectField("stringValue","Ljava/lang/String;");
JavaObject stringJavaObj(env, "java/lang/String",stringObj);
jint length = stringJavaObj.getInt("length");
std::cout << "Length of string is: " << length << std::endl;
return 0;
}
case 2:
{
MyClass myClass(env, *myGlobalClass, obj);
int value = myClass.test.get()+10;
myClass.test.set(value);
return myClass.test.get();
}
case 3: // JNI_SPECIAL_CASE_MYCLASS_GET_METHOD_INT
{
MyClass myClass(env, *myGlobalClass, obj);
int value = myClass.intMethod.get()+10;
myClass.intMethod.set(value);
return myClass.intMethod.get();
}
case 4: // JNI_SPECIAL_CASE_GET_SIZEOF_VOID_POINTER
{
return sizeof(void *);
}
case 5: // JNI_SPECIAL_CASE_GET_SIZEOF_JLONG
{
return sizeof(jlong);
}
case 6: // JNI_SPECIAL_CASE_LOAD_CLASS
{
JavaObject javaObjectDataClass(env,"org/mahu/proto/jnitest/nativewrapper/DataClass2");
jint intValue = javaObjectDataClass.getIntField("intValue");
return intValue;
}
case 7: // SEGV
{
// baz();
return 1;
}
case 8: // JNI_SPECIAL_CASE_PRINT_OBJECTREF
{
std::cout << "HelloJNI objRef " << std::hex << std::showbase << obj << std::dec << std::endl;
for(int i=0; i<100; i++) {
JavaObject javaObjectDataClass(env,"org/mahu/proto/jnitest/nativewrapper/DataClass2");
std::cout << "DataClass2 objRef " << std::hex << std::showbase
<< javaObjectDataClass.getJObject() << std::dec << std::endl;
}
break;
}
case 9: // JNI_SPECIAL_CASE_BIG_ARRAY_READ
{
JavaObject javaObject(env, "org/mahu/proto/jnitest/nativewrapper/HelloJNI", obj);
JByteArrayPtrIn byteArray(env, javaObject.getBytesField("specialBytes"));
return 1;
}
default:
break;
}
return 1;
}
