jbyteArray scanBookCoverInternal
(JNIEnv * _env, jclass _class, jstring _path)
{
CRJNIEnv env(_env);
lString16 path = env.fromJavaString(_path);
CRLog::debug("scanBookCoverInternal(%s) called", LCSTR(path));
lString16 arcname, item;
LVStreamRef res;
jbyteArray array = NULL;
LVContainerRef arc;
if (!LVSplitArcName(path, arcname, item)) {
// not in archive
LVStreamRef stream = LVOpenFileStream(path.c_str(), LVOM_READ);
if (!stream.isNull()) {
arc = LVOpenArchieve(stream);
if (!arc.isNull()) {
// ZIP-based format
if (DetectEpubFormat(stream)) {
// EPUB
// extract coverpage from epub
res = GetEpubCoverpage(arc);
}
} else {
res = GetFB2Coverpage(stream);
if (res.isNull()) {
doc_format_t fmt;
if (DetectPDBFormat(stream, fmt)) {
res = GetPDBCoverpage(stream);
}
}
}
}
} else {
CRLog::debug("scanBookCoverInternal() : is archive, item=%s, arc=%s", LCSTR(item), LCSTR(arcname));
LVStreamRef arcstream = LVOpenFileStream(arcname.c_str(), LVOM_READ);
if (!arcstream.isNull()) {
arc = LVOpenArchieve(arcstream);
if (!arc.isNull()) {
LVStreamRef stream = arc->OpenStream(item.c_str(), LVOM_READ);
if (!stream.isNull()) {
CRLog::debug("scanBookCoverInternal() : archive stream opened ok, parsing");
res = GetFB2Coverpage(stream);
if (res.isNull()) {
doc_format_t fmt;
if (DetectPDBFormat(stream, fmt)) {
res = GetPDBCoverpage(stream);
}
}
}
}
}
}
if (!res.isNull())
array = env.streamToJByteArray(res);
if (array != NULL)
CRLog::debug("scanBookCoverInternal() : returned cover page array");
else
CRLog::debug("scanBookCoverInternal() : cover page data not found");
return array;
}
/*
* Class: org_coolreader_crengine_Engine
* Method: scanBookCoverInternal
* Signature: (Ljava/lang/String;)[B
*/
JNIEXPORT jbyteArray JNICALL Java_org_coolreader_crengine_Engine_scanBookCoverInternal
(JNIEnv * _env, jobject _engine, jstring _path) {
CRJNIEnv env(_env);
lString16 path = env.fromJavaString(_path);
CRLog::debug("scanBookCoverInternal(%s) called", LCSTR(path));
lString16 arcname, item;
LVStreamRef res;
jbyteArray array = NULL;
LVContainerRef arc;
if (!LVSplitArcName(path, arcname, item)) {
// not in archive
LVStreamRef stream = LVOpenFileStream(path.c_str(), LVOM_READ);
if (!stream.isNull()) {
arc = LVOpenArchieve(stream);
if (!arc.isNull()) {
// ZIP-based format
if (DetectEpubFormat(stream)) {
// EPUB
// extract coverpage from epub
res = GetEpubCoverpage(arc);
}
} else {
doc_format_t fmt;
if (DetectPDBFormat(stream, fmt)) {
res = GetPDBCoverpage(stream);
}
}
}
}
if (!res.isNull())
array = env.streamToJByteArray(res);
if (array != NULL)
CRLog::debug("scanBookCoverInternal() : returned cover page array");
else
CRLog::debug("scanBookCoverInternal() : cover page data not found");
return array;
}
