static jbyteArray nativeGetBlob(JNIEnv* env, jclass clazz, jlong windowPtr,
jint row, jint column) {
CursorWindow* window = reinterpret_cast<CursorWindow*>(windowPtr);
LOG_WINDOW("Getting blob 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_BLOB || type == CursorWindow::FIELD_TYPE_STRING) {
size_t size;
const void* value = window->getFieldSlotValueBlob(fieldSlot, &size);
jbyteArray byteArray = env->NewByteArray(size);
if (!byteArray) {
env->ExceptionClear();
throw_sqlite3_exception(env, "Native could not create new byte[]");
return NULL;
}
env->SetByteArrayRegion(byteArray, 0, size, static_cast<const jbyte*>(value));
return byteArray;
} else if (type == CursorWindow::FIELD_TYPE_INTEGER) {
throw_sqlite3_exception(env, "INTEGER data in nativeGetBlob ");
} else if (type == CursorWindow::FIELD_TYPE_FLOAT) {
throw_sqlite3_exception(env, "FLOAT data in nativeGetBlob ");
} else if (type == CursorWindow::FIELD_TYPE_NULL) {
// do nothing
} else {
throwUnknownTypeException(env, type);
}
return NULL;
}
static jboolean putBlob_native(JNIEnv * env, jobject object, jbyteArray value, jint row, jint col)
{
CursorWindow * window = GET_WINDOW(env, object);
if (!value) {
LOG_WINDOW("How did a null value send to here");
return false;
}
field_slot_t * fieldSlot = window->getFieldSlotWithCheck(row, col);
if (fieldSlot == NULL) {
LOG_WINDOW(" getFieldSlotWithCheck error ");
return false;
}
jint len = env->GetArrayLength(value);
int offset = window->alloc(len);
if (!offset) {
LOG_WINDOW("Failed allocating %u bytes", len);
return false;
}
jbyte * bytes = env->GetByteArrayElements(value, NULL);
window->copyIn(offset, (uint8_t const *)bytes, len);
// This must be updated after the call to alloc(), since that
// may move the field around in the window
fieldSlot->type = FIELD_TYPE_BLOB;
fieldSlot->data.buffer.offset = offset;
fieldSlot->data.buffer.size = len;
env->ReleaseByteArrayElements(value, bytes, JNI_ABORT);
LOG_WINDOW("%d,%d is BLOB with %u bytes @ %d", row, col, len, offset);
return true;
}
static jbyteArray getBlob_native(JNIEnv* env, jobject object, jint row, jint column)
{
int32_t err;
CursorWindow * window = GET_WINDOW(env, object);
LOG_WINDOW("Getting blob 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;
if (type == FIELD_TYPE_BLOB || type == FIELD_TYPE_STRING) {
jbyteArray byteArray = env->NewByteArray(field.data.buffer.size);
LOG_ASSERT(byteArray, "Native could not create new byte[]");
env->SetByteArrayRegion(byteArray, 0, field.data.buffer.size,
(const jbyte*)window->offsetToPtr(field.data.buffer.offset));
return byteArray;
} else if (type == FIELD_TYPE_INTEGER) {
throw_sqlite3_exception(env, "INTEGER data in getBlob_native ");
} else if (type == FIELD_TYPE_FLOAT) {
throw_sqlite3_exception(env, "FLOAT data in getBlob_native ");
} else if (type == FIELD_TYPE_NULL) {
// do nothing
} else {
throwUnknowTypeException(env, type);
}
return NULL;
}
static void nativeClear(JNIEnv * env, jclass clazz, jlong windowPtr) {
CursorWindow* window = reinterpret_cast<CursorWindow*>(windowPtr);
LOG_WINDOW("Clearing window %p", window);
status_t status = window->clear();
if (status) {
LOG_WINDOW("Could not clear window. error=%d", status);
}
}
static void native_clear(JNIEnv * env, jobject object)
{
CursorWindow * window = GET_WINDOW(env, object);
LOG_WINDOW("Clearing window %p", window);
if (window == NULL) {
jniThrowException(env, "java/lang/IllegalStateException", "clear() called after close()");
return;
}
window->clear();
}
static jboolean putString_native(JNIEnv * env, jobject object, jstring value, jint row, jint col)
{
CursorWindow * window = GET_WINDOW(env, object);
if (!value) {
LOG_WINDOW("How did a null value send to here");
return false;
}
field_slot_t * fieldSlot = window->getFieldSlotWithCheck(row, col);
if (fieldSlot == NULL) {
LOG_WINDOW(" getFieldSlotWithCheck error ");
return false;
}
#if WINDOW_STORAGE_UTF8
int len = env->GetStringUTFLength(value) + 1;
char const * valStr = env->GetStringUTFChars(value, NULL);
#else
int len = env->GetStringLength(value);
// GetStringLength return number of chars and one char takes 2 bytes
len *= 2;
const jchar* valStr = env->GetStringChars(value, NULL);
#endif
if (!valStr) {
LOG_WINDOW("value can't be transfer to UTFChars");
return false;
}
int offset = window->alloc(len);
if (!offset) {
LOG_WINDOW("Failed allocating %u bytes", len);
#if WINDOW_STORAGE_UTF8
env->ReleaseStringUTFChars(value, valStr);
#else
env->ReleaseStringChars(value, valStr);
#endif
return false;
}
window->copyIn(offset, (uint8_t const *)valStr, len);
// This must be updated after the call to alloc(), since that
// may move the field around in the window
fieldSlot->type = FIELD_TYPE_STRING;
fieldSlot->data.buffer.offset = offset;
fieldSlot->data.buffer.size = len;
LOG_WINDOW("%d,%d is TEXT with %u bytes @ %d", row, col, len, offset);
#if WINDOW_STORAGE_UTF8
env->ReleaseStringUTFChars(value, valStr);
#else
env->ReleaseStringChars(value, valStr);
#endif
return true;
}
static jint nativeGetType(JNIEnv* env, jclass clazz, jlong windowPtr,
jint row, jint column) {
CursorWindow* window = reinterpret_cast<CursorWindow*>(windowPtr);
LOG_WINDOW("returning column type affinity for %d,%d from %p", row, column, window);
CursorWindow::FieldSlot* fieldSlot = window->getFieldSlot(row, column);
if (!fieldSlot) {
return CursorWindow::FIELD_TYPE_NULL;
}
return window->getFieldSlotType(fieldSlot);
}
static jboolean putNull_native(JNIEnv * env, jobject object, jint row, jint col)
{
CursorWindow * window = GET_WINDOW(env, object);
if (!window->putNull(row, col)) {
LOG_WINDOW(" getFieldSlotWithCheck error ");
return false;
}
LOG_WINDOW("%d,%d is NULL", row, col);
return true;
}
static jobject native_getBinder(JNIEnv * env, jobject object)
{
CursorWindow * window = GET_WINDOW(env, object);
if (window) {
sp<IMemory> memory = window->getMemory();
if (memory != NULL) {
sp<IBinder> binder = memory->asBinder();
return javaObjectForIBinder(env, binder);
}
}
return NULL;
}
static void nativeWriteToParcel(JNIEnv * env, jclass clazz, jlong windowPtr,
jobject parcelObj) {
CursorWindow* window = reinterpret_cast<CursorWindow*>(windowPtr);
Parcel* parcel = parcelForJavaObject(env, parcelObj);
status_t status = window->writeToParcel(parcel);
if (status) {
String8 msg;
msg.appendFormat("Could not write CursorWindow to Parcel due to error %d.", status);
jniThrowRuntimeException(env, msg.string());
}
}
static jboolean putDouble_native(JNIEnv * env, jobject object, jdouble value, jint row, jint col)
{
CursorWindow * window = GET_WINDOW(env, object);
if (!window->putDouble(row, col, value)) {
LOG_WINDOW(" getFieldSlotWithCheck error ");
return false;
}
LOG_WINDOW("%d,%d is FLOAT %lf", row, col, value);
return true;
}
static void nativeWriteToParcel(JNIEnv * env, jclass clazz, jint windowPtr,
jobject parcelObj) {
CursorWindow* window = reinterpret_cast<CursorWindow*>(windowPtr);
Parcel* parcel = parcelForJavaObject(env, parcelObj);
status_t status = window->writeToParcel(parcel);
if (status) {
char buf[100];
snprintf(buf, sizeof(buf), "Could not write CursorWindow to Parcel due to error %d.", status);
jniThrowException(env, "java/lang/IllegalStateException", buf);
}
}
static jboolean putLong_native(JNIEnv * env, jobject object, jlong value, jint row, jint col)
{
CursorWindow * window = GET_WINDOW(env, object);
if (!window->putLong(row, col, value)) {
LOG_WINDOW(" getFieldSlotWithCheck error ");
return false;
}
LOG_WINDOW("%d,%d is INTEGER 0x%016llx", row, col, value);
return true;
}
static jboolean nativePutDouble(JNIEnv* env, jclass clazz, jlong windowPtr,
jdouble value, jint row, jint column) {
CursorWindow* window = reinterpret_cast<CursorWindow*>(windowPtr);
status_t status = window->putDouble(row, column, value);
if (status) {
LOG_WINDOW("Failed to put double. error=%d", status);
return false;
}
LOG_WINDOW("%d,%d is FLOAT %lf", row, column, value);
return true;
}
static jboolean nativePutLong(JNIEnv* env, jclass clazz, jlong windowPtr,
jlong value, jint row, jint column) {
CursorWindow* window = reinterpret_cast<CursorWindow*>(windowPtr);
status_t status = window->putLong(row, column, value);
if (status) {
LOG_WINDOW("Failed to put long. error=%d", status);
return false;
}
LOG_WINDOW("%d,%d is INTEGER 0x%016llx", row, column, value);
return true;
}
static jboolean nativePutNull(JNIEnv* env, jclass clazz, jlong windowPtr,
jint row, jint column) {
CursorWindow* window = reinterpret_cast<CursorWindow*>(windowPtr);
status_t status = window->putNull(row, column);
if (status) {
LOG_WINDOW("Failed to put null. error=%d", status);
return false;
}
LOG_WINDOW("%d,%d is NULL", row, column);
return true;
}
static jboolean isNull_native(JNIEnv* env, jobject object, jint row, jint column)
{
CursorWindow * window = GET_WINDOW(env, object);
LOG_WINDOW("Checking for NULL at %d,%d from %p", row, column, window);
bool isNull;
if (window->getNull(row, column, &isNull)) {
return isNull;
}
//TODO throw execption?
return true;
}
static jint nativeCreateFromParcel(JNIEnv* env, jclass clazz, jobject parcelObj) {
Parcel* parcel = parcelForJavaObject(env, parcelObj);
CursorWindow* window;
status_t status = CursorWindow::createFromParcel(parcel, &window);
if (status || !window) {
LOGE("Could not create CursorWindow from Parcel due to error %d.", status);
return 0;
}
LOG_WINDOW("nativeInitializeFromBinder: numRows = %d, numColumns = %d, window = %p",
window->getNumRows(), window->getNumColumns(), window);
return reinterpret_cast<jint>(window);
}
static jint nativeGetType(JNIEnv* env, jclass clazz, jlong windowPtr,
jint row, jint column) {
CursorWindow* window = reinterpret_cast<CursorWindow*>(windowPtr);
LOG_WINDOW("returning column type affinity for %d,%d from %p", row, column, window);
CursorWindow::FieldSlot* fieldSlot = window->getFieldSlot(row, column);
if (!fieldSlot) {
// FIXME: This is really broken but we have CTS tests that depend
// on this legacy behavior.
//throwExceptionWithRowCol(env, row, column);
return CursorWindow::FIELD_TYPE_NULL;
}
return window->getFieldSlotType(fieldSlot);
}
static jdouble getDouble_native(JNIEnv* env, jobject object, jint row, jint column)
{
int32_t err;
CursorWindow * window = GET_WINDOW(env, object);
LOG_WINDOW("Getting double 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 0.0;
}
uint8_t type = field.type;
if (type == FIELD_TYPE_FLOAT) {
double value;
if (window->getDouble(row, column, &value)) {
return value;
}
return 0.0;
} else if (type == FIELD_TYPE_STRING) {
uint32_t size = field.data.buffer.size;
if (size > 0) {
double result;
jstring data = env->NewString((const jchar*)window->offsetToPtr(field.data.buffer.offset), (jsize)size);
const char* utf8data = env->GetStringUTFChars(data, NULL);
result = strtod(utf8data, NULL);
if(utf8data) env->ReleaseStringUTFChars(data, utf8data);
if(data) env->DeleteLocalRef(data);
return result;
} else {
return 0.0;
}
} else if (type == FIELD_TYPE_INTEGER) {
int64_t value;
if (window->getLong(row, column, &value)) {
return (double) value;
}
return 0.0;
} else if (type == FIELD_TYPE_NULL) {
return 0.0;
} else if (type == FIELD_TYPE_BLOB) {
throw_sqlite3_exception(env, "Unable to convert BLOB to double");
return 0.0;
} else {
throwUnknowTypeException(env, type);
return 0.0;
}
}
static jint getType_native(JNIEnv* env, jobject object, jint row, jint column)
{
int32_t err;
CursorWindow * window = GET_WINDOW(env, object);
LOG_WINDOW("Getting type 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;
}
return field.type;
}
static jboolean isFloat_native(JNIEnv* env, jobject object, jint row, jint column)
{
int32_t err;
CursorWindow * window = GET_WINDOW(env, object);
LOG_WINDOW("Checking if column is a float 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;
}
return field.type == FIELD_TYPE_FLOAT;
}
static jboolean nativePutBlob(JNIEnv* env, jclass clazz, jlong windowPtr,
jbyteArray valueObj, jint row, jint column) {
CursorWindow* window = reinterpret_cast<CursorWindow*>(windowPtr);
jsize len = env->GetArrayLength(valueObj);
void* value = env->GetPrimitiveArrayCritical(valueObj, NULL);
status_t status = window->putBlob(row, column, value, len);
env->ReleasePrimitiveArrayCritical(valueObj, value, JNI_ABORT);
if (status) {
LOG_WINDOW("Failed to put blob. error=%d", status);
return false;
}
LOG_WINDOW("%d,%d is BLOB with %u bytes", row, column, len);
return true;
}
status_t CursorWindow::create(const String8& name, size_t size, CursorWindow** outCursorWindow) {
String8 ashmemName("CursorWindow: ");
ashmemName.append(name);
status_t result;
int ashmemFd = ashmem_create_region(ashmemName.string(), size);
if (ashmemFd < 0) {
ALOG(LOG_ERROR,LOG_TAG,"CursorWindow::create, ashmem_create_region return errno = %d",errno);
result = -errno;
} else {
result = ashmem_set_prot_region(ashmemFd, PROT_READ | PROT_WRITE);
if (result >= 0) {
void* data = ::mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, ashmemFd, 0);
if (data == MAP_FAILED) {
ALOG(LOG_ERROR,LOG_TAG,"CursorWindow::create, mmap return errno = %d",errno);
result = -errno;
} else {
result = ashmem_set_prot_region(ashmemFd, PROT_READ);
if (result >= 0) {
CursorWindow* window = new CursorWindow(name, ashmemFd,
data, size, false /*readOnly*/);
result = window->clear();
if (!result) {
LOG_WINDOW("Created new CursorWindow: freeOffset=%d, "
"numRows=%d, numColumns=%d, mSize=%d, mData=%p",
window->mHeader->freeOffset,
window->mHeader->numRows,
window->mHeader->numColumns,
window->mSize, window->mData);
*outCursorWindow = window;
return OK;
}
ALOG(LOG_ERROR,LOG_TAG,"CursorWindow::create, window->clear return errno = %d",errno);
delete window;
} else {
ALOG(LOG_ERROR,LOG_TAG,"CursorWindow::create, ashmeme_set_prot_region return errno = %d",errno);
}
}
::munmap(data, size);
}
::close(ashmemFd);
}
*outCursorWindow = NULL;
return result;
}
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 jboolean nativePutString(JNIEnv* env, jclass clazz, jlong windowPtr,
jstring valueObj, jint row, jint column) {
CursorWindow* window = reinterpret_cast<CursorWindow*>(windowPtr);
size_t sizeIncludingNull = env->GetStringUTFLength(valueObj) + 1;
const char* valueStr = env->GetStringUTFChars(valueObj, NULL);
if (!valueStr) {
LOG_WINDOW("value can't be transferred to UTFChars");
return false;
}
status_t status = window->putString(row, column, valueStr, sizeIncludingNull);
env->ReleaseStringUTFChars(valueObj, valueStr);
if (status) {
LOG_WINDOW("Failed to put string. error=%d", status);
return false;
}
LOG_WINDOW("%d,%d is TEXT with %u bytes", row, column, sizeIncludingNull);
return true;
}
static void native_init_empty(JNIEnv * env, jobject object, jboolean localOnly)
{
uint8_t * data;
size_t size;
CursorWindow * window;
window = new CursorWindow(MAX_WINDOW_SIZE);
if (!window) {
jniThrowException(env, "java/lang/RuntimeException", "No memory for native window object");
return;
}
if (!window->initBuffer(localOnly)) {
jniThrowException(env, "java/lang/IllegalStateException", "Couldn't init cursor window");
delete window;
return;
}
LOG_WINDOW("native_init_empty: window = %p", window);
SET_WINDOW(env, object, window);
}
static jdouble nativeGetDouble(JNIEnv* env, jclass clazz, jlong windowPtr,
jint row, jint column) {
CursorWindow* window = reinterpret_cast<CursorWindow*>(windowPtr);
LOG_WINDOW("Getting double for %d,%d from %p", row, column, window);
CursorWindow::FieldSlot* fieldSlot = window->getFieldSlot(row, column);
if (!fieldSlot) {
throwExceptionWithRowCol(env, row, column);
return 0.0;
}
int32_t type = window->getFieldSlotType(fieldSlot);
if (type == CursorWindow::FIELD_TYPE_FLOAT) {
return window->getFieldSlotValueDouble(fieldSlot);
} else if (type == CursorWindow::FIELD_TYPE_STRING) {
size_t sizeIncludingNull;
const char* value = window->getFieldSlotValueString(fieldSlot, &sizeIncludingNull);
return sizeIncludingNull > 1 ? strtod(value, NULL) : 0.0;
} else if (type == CursorWindow::FIELD_TYPE_INTEGER) {
return jdouble(window->getFieldSlotValueLong(fieldSlot));
} else if (type == CursorWindow::FIELD_TYPE_NULL) {
return 0.0;
} else if (type == CursorWindow::FIELD_TYPE_BLOB) {
throw_sqlite3_exception(env, "Unable to convert BLOB to double");
return 0.0;
} else {
throwUnknownTypeException(env, type);
return 0.0;
}
}
static void native_init_memory(JNIEnv * env, jobject object, jobject memObj)
{
sp<IMemory> memory = interface_cast<IMemory>(ibinderForJavaObject(env, memObj));
if (memory == NULL) {
jniThrowException(env, "java/lang/IllegalStateException", "Couldn't get native binder");
return;
}
CursorWindow * window = new CursorWindow();
if (!window) {
jniThrowException(env, "java/lang/RuntimeException", "No memory for native window object");
return;
}
if (!window->setMemory(memory)) {
jniThrowException(env, "java/lang/RuntimeException", "No memory in memObj");
delete window;
return;
}
LOG_WINDOW("native_init_memory: numRows = %d, numColumns = %d, window = %p", window->getNumRows(), window->getNumColumns(), window);
SET_WINDOW(env, object, window);
}
static jstring getString_native(JNIEnv* env, jobject object, jint row, jint column)
{
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;
if (type == FIELD_TYPE_STRING) {
uint32_t size = field.data.buffer.size;
if (size > 0) {
#if WINDOW_STORAGE_UTF8
// Pass size - 1 since the UTF8 is null terminated and we don't want a null terminator on the UTF16 string
String16 utf16((char const *)window->offsetToPtr(field.data.buffer.offset), size - 1);
return env->NewString((jchar const *)utf16.string(), utf16.size());
#else
return env->NewString((jchar const *)window->offsetToPtr(field.data.buffer.offset), size / 2);
#endif
} else {
return env->NewStringUTF("");
}
} 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(buf);
}
return NULL;
} else if (type == FIELD_TYPE_FLOAT) {
double value;
if (window->getDouble(row, column, &value)) {
char buf[32];
//selete the print way by code to impove the precision
if (((value > 0.0001) && (value < 1000000)) || ((value < -0.0001) && (value > -1000000)))
snprintf(buf, sizeof(buf), "%lf", value);
else
snprintf(buf, sizeof(buf), "%e", value);
return env->NewStringUTF(buf);
}
return NULL;
} else 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 {
throwUnknowTypeException(env, type);
return NULL;
}
}
