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move unpack_from_jar to its own class (#656)
Signed-off-by: Andrey Parfenov <a1994ndrey@gmail.com>
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96 changes: 96 additions & 0 deletions
96
java_package/brainflow/src/main/java/brainflow/JarHelper.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,96 @@ | ||
| package brainflow; | ||
|
|
||
| import java.io.File; | ||
| import java.io.IOException; | ||
| import java.io.InputStream; | ||
| import java.nio.file.Files; | ||
| import java.nio.file.Path; | ||
|
|
||
| import com.sun.jna.Platform; | ||
|
|
||
| public class JarHelper | ||
| { | ||
| public static Path unpack_from_jar (String lib_name) | ||
| { | ||
| File file = new File (lib_name); | ||
| try | ||
| { | ||
| File temp_dir = get_temp_dir (); | ||
| file = new File (temp_dir, lib_name); | ||
| } catch (IOException io) | ||
| { | ||
| io.printStackTrace (); | ||
| } | ||
| try | ||
| { | ||
| System.err.println ("Unpacking to: " + file.getAbsolutePath ().toString ()); | ||
| if (file.exists ()) | ||
| file.delete (); | ||
| InputStream link = (JarHelper.class.getResourceAsStream (lib_name)); | ||
| Files.copy (link, file.getAbsoluteFile ().toPath ()); | ||
| return file.getAbsoluteFile ().toPath (); | ||
| } catch (Exception io) | ||
| { | ||
| io.printStackTrace (); | ||
| System.err.println ("file: " + lib_name + " is not found in jar file"); | ||
| return null; | ||
| } | ||
| } | ||
|
|
||
| static File get_temp_dir () throws IOException | ||
| { | ||
| File jna_tmp; | ||
| String prop = System.getProperty ("jna.tmpdir"); | ||
| if (prop != null) | ||
| { | ||
| jna_tmp = new File (prop); | ||
| jna_tmp.mkdirs (); | ||
| } else | ||
| { | ||
| File tmp = new File (System.getProperty ("java.io.tmpdir")); | ||
| if (Platform.isMac ()) | ||
| { | ||
| // https://developer.apple.com/library/archive/documentation/FileManagement/Conceptual/FileSystemProgrammingGuide/MacOSXDirectories/MacOSXDirectories.html | ||
| jna_tmp = new File (System.getProperty ("user.home"), "Library/Caches/JNA/temp"); | ||
| } else if ( | ||
| Platform.isLinux () || Platform.isSolaris () || Platform.isAIX () || Platform.isFreeBSD () | ||
| || Platform.isNetBSD () || Platform.isOpenBSD () || Platform.iskFreeBSD () | ||
| ) | ||
| { | ||
| // https://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html | ||
| // The XDG_CACHE_DIR is expected to be per user | ||
| String xdg_cache_environment = System.getenv ("XDG_CACHE_HOME"); | ||
| File xdg_cache_file; | ||
| if (xdg_cache_environment == null || xdg_cache_environment.trim ().isEmpty ()) | ||
| { | ||
| xdg_cache_file = new File (System.getProperty ("user.home"), ".cache"); | ||
| } else | ||
| { | ||
| xdg_cache_file = new File (xdg_cache_environment); | ||
| } | ||
| jna_tmp = new File (xdg_cache_file, "JNA/temp"); | ||
| } else | ||
| { | ||
| // Loading DLLs via System.load() under a directory with a unicode | ||
| // name will fail on windows, so use a hash code of the user's | ||
| // name in case the user's name contains non-ASCII characters | ||
| jna_tmp = new File (tmp, "jna-" + System.getProperty ("user.name").hashCode ()); | ||
| } | ||
|
|
||
| jna_tmp.mkdirs (); | ||
| if (!jna_tmp.exists () || !jna_tmp.canWrite ()) | ||
| { | ||
| jna_tmp = tmp; | ||
| } | ||
| } | ||
| if (!jna_tmp.exists ()) | ||
| { | ||
| throw new IOException ("JNA temporary directory '" + jna_tmp + "' does not exist"); | ||
| } | ||
| if (!jna_tmp.canWrite ()) | ||
| { | ||
| throw new IOException ("JNA temporary directory '" + jna_tmp + "' is not writable"); | ||
| } | ||
| return jna_tmp; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| import argparse | ||
| import time | ||
|
|
||
| from brainflow.board_shim import BoardShim, BrainFlowInputParams, BoardIds, BrainFlowPresets | ||
|
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||
|
|
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| def main(): | ||
| BoardShim.enable_dev_board_logger() | ||
| parser = argparse.ArgumentParser() | ||
| # use docs to check which parameters are required for specific board, e.g. for Cyton - set serial port | ||
| parser.add_argument('--timeout', type=int, help='timeout for device discovery or connection', required=False, | ||
| default=0) | ||
| parser.add_argument('--ip-port', type=int, help='ip port', required=False, default=0) | ||
| parser.add_argument('--ip-protocol', type=int, help='ip protocol, check IpProtocolType enum', required=False, | ||
| default=0) | ||
| parser.add_argument('--ip-address', type=str, help='ip address', required=False, default='') | ||
| parser.add_argument('--serial-port', type=str, help='serial port', required=False, default='') | ||
| parser.add_argument('--mac-address', type=str, help='mac address', required=False, default='') | ||
| parser.add_argument('--other-info', type=str, help='other info', required=False, default='') | ||
| parser.add_argument('--serial-number', type=str, help='serial number', required=False, default='') | ||
| parser.add_argument('--board-id', type=int, help='board id, check docs to get a list of supported boards', | ||
| required=True) | ||
| parser.add_argument('--file', type=str, help='file', required=False, default='') | ||
| parser.add_argument('--master-board', type=int, help='master board id for streaming and playback boards', | ||
| required=False, default=BoardIds.NO_BOARD) | ||
| args = parser.parse_args() | ||
|
|
||
| params = BrainFlowInputParams() | ||
| params.ip_port = args.ip_port | ||
| params.serial_port = args.serial_port | ||
| params.mac_address = args.mac_address | ||
| params.other_info = args.other_info | ||
| params.serial_number = args.serial_number | ||
| params.ip_address = args.ip_address | ||
| params.ip_protocol = args.ip_protocol | ||
| params.timeout = args.timeout | ||
| params.file = args.file | ||
| params.master_board = args.master_board | ||
|
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| board = BoardShim(args.board_id, params) | ||
| board_id = board.get_board_id() | ||
| presets = BoardShim.get_board_presets(board_id) | ||
| board.prepare_session() | ||
| for preset in presets: | ||
| # to stream to plotjuggler | ||
| board.add_streamer( | ||
| f'plotjuggler_udp://127.0.0.1:9870', preset) | ||
| # to store data in a file | ||
| board.add_streamer(f'file://data_{preset}.csv:w', preset) | ||
| board.start_stream () | ||
|
|
||
| while True: | ||
| try: | ||
| time.sleep(1) | ||
| except KeyboardInterrupt: | ||
| break | ||
| except Exception as e: | ||
| print(e) | ||
| board.release_session() | ||
|
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| if __name__ == "__main__": | ||
| main() |