Example #1
0
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;
}
Example #2
0
/*
 * 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;
}