static jstring getString_native(JNIEnv* env, jobject object, jint row, jint column)
{
int i;
int32_t err;
CursorWindow * window = GET_WINDOW(env, object);
LOG_WINDOW("Getting string for %d,%d from %p", row, column, window);
field_slot_t field;
err = window->read_field_slot(row, column, &field);
if (err != 0) {
throwExceptionWithRowCol(env, row, column);
return NULL;
}
uint8_t type = field.type;
jint size = (jint)field.data.buffer.size;
if (type == FIELD_TYPE_NULL) {
return NULL;
} else if (type == FIELD_TYPE_BLOB) {
throw_sqlite3_exception(env, "Unable to convert BLOB to string");
return NULL;
} else if (type == FIELD_TYPE_STRING) {
jchar * buf = (jchar *)window->offsetToPtr(field.data.buffer.offset);
jclass strClass = env->FindClass("java/lang/String");
jmethodID ctorID = env->GetMethodID(strClass, "<init>", "([BLjava/lang/String;)V");
jstring encoding = env->NewStringUTF("UTF-16LE");
jbyteArray bytes = env->NewByteArray(size);
env->SetByteArrayRegion(bytes, 0, size, (jbyte*)buf);
return (jstring)env->NewObject(strClass, ctorID, bytes, encoding);
} else if (type == FIELD_TYPE_INTEGER) {
int64_t value;
if (window->getLong(row, column, &value)) {
char buf[32];
snprintf(buf, sizeof(buf), "%lld", value);
return env->NewStringUTF((const char*)buf);
}
return NULL;
} else if (type == FIELD_TYPE_FLOAT) {
double value;
if (window->getDouble(row, column, &value)) {
char buf[32];
snprintf(buf, sizeof(buf), "%g", value);
return env->NewStringUTF(buf);
}
return NULL;
}
}
static jstring nativeGetString(JNIEnv* env, jclass clazz, jlong windowPtr,
jint row, jint column) {
CursorWindow* window = reinterpret_cast<CursorWindow*>(windowPtr);
LOG_WINDOW("Getting string for %d,%d from %p", row, column, window);
CursorWindow::FieldSlot* fieldSlot = window->getFieldSlot(row, column);
if (!fieldSlot) {
throwExceptionWithRowCol(env, row, column);
return NULL;
}
int32_t type = window->getFieldSlotType(fieldSlot);
if (type == CursorWindow::FIELD_TYPE_STRING) {
size_t sizeIncludingNull;
const char* value = window->getFieldSlotValueString(fieldSlot, &sizeIncludingNull);
if (sizeIncludingNull <= 1) {
return gEmptyString;
}
// Convert to UTF-16 here instead of calling NewStringUTF. NewStringUTF
// doesn't like UTF-8 strings with high codepoints. It actually expects
// Modified UTF-8 with encoded surrogate pairs.
String16 utf16(value, sizeIncludingNull - 1);
return env->NewString(reinterpret_cast<const jchar*>(utf16.string()), utf16.size());
} else if (type == CursorWindow::FIELD_TYPE_INTEGER) {
int64_t value = window->getFieldSlotValueLong(fieldSlot);
char buf[32];
snprintf(buf, sizeof(buf), "%" PRId64, value);
return env->NewStringUTF(buf);
} else if (type == CursorWindow::FIELD_TYPE_FLOAT) {
double value = window->getFieldSlotValueDouble(fieldSlot);
char buf[32];
snprintf(buf, sizeof(buf), "%g", value);
return env->NewStringUTF(buf);
} else if (type == CursorWindow::FIELD_TYPE_NULL) {
return NULL;
} else if (type == CursorWindow::FIELD_TYPE_BLOB) {
throw_sqlite3_exception(env, "Unable to convert BLOB to string");
return NULL;
} else {
throwUnknownTypeException(env, type);
return NULL;
}
}
static jstring nativeGetString(JNIEnv* env, jclass clazz, jlong windowPtr,
jint row, jint column) {
CursorWindow* window = reinterpret_cast<CursorWindow*>(windowPtr);
//LOG_WINDOW("Getting string for %d,%d from %p", row, column, window);
CursorWindow::FieldSlot* fieldSlot = window->getFieldSlot(row, column);
if (!fieldSlot) {
throwExceptionWithRowCol(env, row, column);
return NULL;
}
int32_t type = window->getFieldSlotType(fieldSlot);
if (type == CursorWindow::FIELD_TYPE_STRING) {
size_t sizeIncludingNull;
const char* value = window->getFieldSlotValueString(fieldSlot, &sizeIncludingNull);
if (sizeIncludingNull <= 1) {
return NULL;
}
jchar chars[sizeIncludingNull - 1];
jint size = utf8ToJavaCharArray(value, chars, sizeIncludingNull - 1);
return env->NewString(chars, size);
} else if (type == CursorWindow::FIELD_TYPE_INTEGER) {
int64_t value = window->getFieldSlotValueLong(fieldSlot);
char buf[32];
snprintf(buf, sizeof(buf), "%" PRId64, value);
return env->NewStringUTF(buf);
} else if (type == CursorWindow::FIELD_TYPE_FLOAT) {
double value = window->getFieldSlotValueDouble(fieldSlot);
char buf[32];
snprintf(buf, sizeof(buf), "%g", value);
return env->NewStringUTF(buf);
} else if (type == CursorWindow::FIELD_TYPE_NULL) {
return NULL;
} else if (type == CursorWindow::FIELD_TYPE_BLOB) {
throw_sqlite3_exception(env, "Unable to convert BLOB to string");
return NULL;
} else {
throwUnknownTypeException(env, type);
return NULL;
}
}
static void nativeCopyStringToBuffer(JNIEnv* env, jclass clazz, jlong windowPtr,
jint row, jint column, jobject bufferObj) {
CursorWindow* window = reinterpret_cast<CursorWindow*>(windowPtr);
LOG_WINDOW("Copying string for %d,%d from %p", row, column, window);
CursorWindow::FieldSlot* fieldSlot = window->getFieldSlot(row, column);
if (!fieldSlot) {
throwExceptionWithRowCol(env, row, column);
return;
}
int32_t type = window->getFieldSlotType(fieldSlot);
if (type == CursorWindow::FIELD_TYPE_STRING) {
size_t sizeIncludingNull;
const char* value = window->getFieldSlotValueString(fieldSlot, &sizeIncludingNull);
if (sizeIncludingNull > 1) {
fillCharArrayBufferUTF(env, bufferObj, value, sizeIncludingNull - 1);
} else {
clearCharArrayBuffer(env, bufferObj);
}
} else if (type == CursorWindow::FIELD_TYPE_INTEGER) {
int64_t value = window->getFieldSlotValueLong(fieldSlot);
char buf[32];
snprintf(buf, sizeof(buf), "%" PRId64, value);
fillCharArrayBufferUTF(env, bufferObj, buf, strlen(buf));
} else if (type == CursorWindow::FIELD_TYPE_FLOAT) {
double value = window->getFieldSlotValueDouble(fieldSlot);
char buf[32];
snprintf(buf, sizeof(buf), "%g", value);
fillCharArrayBufferUTF(env, bufferObj, buf, strlen(buf));
} else if (type == CursorWindow::FIELD_TYPE_NULL) {
clearCharArrayBuffer(env, bufferObj);
} else if (type == CursorWindow::FIELD_TYPE_BLOB) {
throw_sqlite3_exception(env, "Unable to convert BLOB to string");
} else {
throwUnknownTypeException(env, type);
}
}
