Examples with JsonFileBackedData nl.knaw.huygens.timbuctoo.v5.jsonfilebackeddata.JsonFileBackedData used on opensource projects

Example 1 with JsonFileBackedData

use of nl.knaw.huygens.timbuctoo.v5.jsonfilebackeddata.JsonFileBackedData in project timbuctoo by HuygensING.

the class FileSystemDataStorage method loadDataSetMetaData.

@Override
public Map<String, Set<DataSetMetaData>> loadDataSetMetaData() throws IOException {
    Map<String, Set<DataSetMetaData>> metaDataSet = Maps.newHashMap();
    File[] directories = new File(dataSetMetadataLocation).listFiles(File::isDirectory);
    for (int i = 0; i < directories.length; i++) {
        String dirName = directories[i].toString();
        String currentOwnerId = dirName.substring(dirName.lastIndexOf("/") + 1, dirName.length());
        Set<DataSetMetaData> tempMetaDataSet = new HashSet<>();
        try (Stream<Path> fileStream = Files.walk(directories[i].toPath())) {
            Set<Path> paths = fileStream.filter(current -> Files.isDirectory(current)).collect(Collectors.toSet());
            for (Path path : paths) {
                File tempFile = new File(path.toString() + "/metaData.json");
                if (tempFile.exists()) {
                    JsonFileBackedData<BasicDataSetMetaData> metaDataFromFile = null;
                    metaDataFromFile = JsonFileBackedData.getOrCreate(tempFile, null, new TypeReference<BasicDataSetMetaData>() {
                    });
                    tempMetaDataSet.add(metaDataFromFile.getData());
                }
            }
        }
        metaDataSet.put(currentOwnerId, tempMetaDataSet);
    }
    return metaDataSet;
}