Examples with AnnisBinaryMetaData annis.service.objects.AnnisBinaryMetaData used on opensource projects

Example 11 with AnnisBinaryMetaData

use of annis.service.objects.AnnisBinaryMetaData in project ANNIS by korpling.

the class QueryDaoImpl method getBinary.

@Override
public InputStream getBinary(String toplevelCorpusName, String corpusName, String mimeType, String title, int offset, int length) {
    AnnisBinaryMetaData binary = (AnnisBinaryMetaData) getJdbcTemplate().query(ByteHelper.SQL, byteHelper.getArgs(toplevelCorpusName, corpusName, mimeType, title, offset, length), ByteHelper.getArgTypes(), byteHelper);
    try {
        // retrieve the requested part of the file from the data directory
        File dataFile = new File(getRealDataDir(), binary.getLocalFileName());
        long fileSize = dataFile.length();
        Preconditions.checkArgument(offset + length <= fileSize, "Range larger than the actual file size requested. Actual file size is %d bytes, %d bytes were requested.", fileSize, offset + length);
        FileInputStream fInput = new FileInputStream(dataFile);
        ByteStreams.skipFully(fInput, offset);
        return ByteStreams.limit(fInput, length);
    } catch (FileNotFoundException ex) {
        log.warn("Media file from database not found in data directory", ex);
    } catch (IOException ex) {
        log.warn("Error when reading media file from the data directory", ex);
    }
    return new ByteArrayInputStream(new byte[0]);
}