Python representation.DescriptorElementFactory類代碼示例

    def test_configuration(self):
        c = DescriptorElementFactory.get_default_config()
        self.assertIsNone(c['type'])
        self.assertIn('DescriptorMemoryElement', c)

        c['type'] = 'DescriptorMemoryElement'
        factory = DescriptorElementFactory.from_config(c)
        self.assertEqual(factory._d_type.__name__,
                         DescriptorMemoryElement.__name__)
        self.assertEqual(factory._d_type_config, {})

        d = factory.new_descriptor('test', 'foo')
        self.assertEqual(d.type(), 'test')
        self.assertEqual(d.uuid(), 'foo')

    def test_configuration(self):
        c = DescriptorElementFactory.get_default_config()
        ntools.assert_is_none(c['type'])
        ntools.assert_in('DescriptorMemoryElement', c)

        c['type'] = 'DescriptorMemoryElement'
        factory = DescriptorElementFactory.from_config(c)
        ntools.assert_equal(factory._d_type.__name__,
                            DescriptorMemoryElement.__name__)
        ntools.assert_equal(factory._d_type_config, {})

        d = factory.new_descriptor('test', 'foo')
        ntools.assert_equal(d.type(), 'test')
        ntools.assert_equal(d.uuid(), 'foo')
        DescriptorMemoryElement.MEMORY_CACHE = {}

    def from_config(cls, config_dict, type_str, uuid, merge_default=True):
        # convert factory configuration
        config_dict["wrapped_element_factory"] = DescriptorElementFactory.from_config(
            config_dict["wrapped_element_factory"]
        )

        return super(CachingDescriptorElement, cls).from_config(config_dict, type_str, uuid, merge_default)

    def get_default_config(cls):
        d = super(IqrSearch, cls).get_default_config()

        # Remove parent_app slot for later explicit specification.
        del d['parent_app']

        # fill in plugin configs
        d['data_set'] = plugin.make_config(get_data_set_impls())

        d['descr_generator'] = \
            plugin.make_config(get_descriptor_generator_impls())

        d['nn_index'] = plugin.make_config(get_nn_index_impls())

        ri_config = plugin.make_config(get_relevancy_index_impls())
        if d['rel_index_config']:
            ri_config.update(d['rel_index_config'])
        d['rel_index_config'] = ri_config

        df_config = DescriptorElementFactory.get_default_config()
        if d['descriptor_factory']:
            df_config.update(d['descriptor_factory'].get_config())
        d['descriptor_factory'] = df_config

        return d

    def from_config(cls, config, parent_app):
        """
        Instantiate a new instance of this class given the configuration
        JSON-compliant dictionary encapsulating initialization arguments.

        :param config: JSON compliant dictionary encapsulating
            a configuration.
        :type config: dict

        :param parent_app: Parent containing flask app instance
        :type parent_app: smqtk.web.search_app.app.search_app

        :return: Constructed instance from the provided config.
        :rtype: IqrSearch

        """
        merged = cls.get_default_config()
        merged.update(config)

        # construct nested objects via configurations
        merged['data_set'] = \
            plugin.from_plugin_config(merged['data_set'],
                                      get_data_set_impls())
        merged['descr_generator'] = \
            plugin.from_plugin_config(merged['descr_generator'],
                                      get_descriptor_generator_impls())
        merged['nn_index'] = \
            plugin.from_plugin_config(merged['nn_index'],
                                      get_nn_index_impls())

        merged['descriptor_factory'] = \
            DescriptorElementFactory.from_config(merged['descriptor_factory'])

        return cls(parent_app, **merged)

    def get_default_config(cls):
        c = super(SmqtkClassifierService, cls).get_default_config()

        c[cls.CONFIG_ENABLE_CLASSIFIER_REMOVAL] = False

        # Static classifier configurations
        c[cls.CONFIG_CLASSIFIER_COLLECTION] = \
            ClassifierCollection.get_default_config()
        # Classification element factory for new classification results.
        c[cls.CONFIG_CLASSIFICATION_FACTORY] = \
            ClassificationElementFactory.get_default_config()
        # Descriptor generator for new content
        c[cls.CONFIG_DESCRIPTOR_GENERATOR] = smqtk.utils.plugin.make_config(
            get_descriptor_generator_impls()
        )
        # Descriptor factory for new content descriptors
        c[cls.CONFIG_DESCRIPTOR_FACTORY] = \
            DescriptorElementFactory.get_default_config()
        # from-IQR-state *supervised* classifier configuration
        c[cls.CONFIG_IQR_CLASSIFIER] = smqtk.utils.plugin.make_config(
            get_classifier_impls(
                sub_interface=SupervisedClassifier
            )
        )
        c[cls.CONFIG_IMMUTABLE_LABELS] = []

        return c

    def test_no_params(self, dei_init):
        # So we don't break python
        dei_init.return_value = None

        test_params = {}

        factory = DescriptorElementFactory(DummyElementImpl, test_params)

        expected_type = 'type'
        expected_uuid = 'uuid'
        # Should construct a new DEI instance under they hood somewhere
        r = factory.new_descriptor(expected_type, expected_uuid)

        ntools.assert_true(dei_init.called)
        dei_init.assert_called_once_with(expected_type, expected_uuid)
        ntools.assert_is_instance(r, DummyElementImpl)

def default_config():
    return {
        "descriptor_generator":
            plugin.make_config(get_descriptor_generator_impls()),
        "descriptor_factory": DescriptorElementFactory.get_default_config(),
        "descriptor_index":
            plugin.make_config(get_descriptor_index_impls())
    }

    def test_no_params(self):
        test_params = {}

        factory = DescriptorElementFactory(DummyElementImpl, test_params)

        expected_type = 'type'
        expected_uuid = 'uuid'
        expected_args = ()
        expected_kwds = {}

        # Should construct a new DEI instance under they hood somewhere
        r = factory.new_descriptor(expected_type, expected_uuid)

        ntools.assert_is_instance(r, DummyElementImpl)
        ntools.assert_equal(r._type_label, expected_type)
        ntools.assert_equal(r._uuid, expected_uuid)
        ntools.assert_equal(r.args, expected_args)
        ntools.assert_equal(r.kwds, expected_kwds)

    def test_with_params(self, dei_init):
        # So we don't break python
        dei_init.return_value = None

        v = numpy.random.randint(0, 10, 10)
        test_params = {
            'p1': 'some dir',
            'vec': v
        }

        factory = DescriptorElementFactory(DummyElementImpl, test_params)

        ex_type = 'type'
        ex_uuid = 'uuid'
        # Should construct a new DEI instance under they hood somewhere
        r = factory.new_descriptor(ex_type, ex_uuid)

        ntools.assert_true(dei_init.called)
        dei_init.assert_called_once_with(ex_type, ex_uuid, p1='some dir', vec=v)
        ntools.assert_is_instance(r, DummyElementImpl)

def get_default_config():
    return {
        "descriptor_factory":
            DescriptorElementFactory.get_default_config(),
        "descriptor_generator":
            plugin.make_config(get_descriptor_generator_impls()),
        "classification_factory":
            ClassificationElementFactory.get_default_config(),
        "classifier":
            plugin.make_config(get_classifier_impls()),
    }

    def test_with_params(self):
        v = numpy.random.randint(0, 10, 10)
        test_params = {
            'p1': 'some dir',
            'vec': v
        }

        factory = DescriptorElementFactory(DummyElementImpl, test_params)

        ex_type = 'type'
        ex_uuid = 'uuid'
        ex_args = ()
        ex_kwds = test_params
        # Should construct a new DEI instance under they hood somewhere
        r = factory.new_descriptor(ex_type, ex_uuid)

        ntools.assert_is_instance(r, DummyElementImpl)
        ntools.assert_equal(r._type_label, ex_type)
        ntools.assert_equal(r._uuid, ex_uuid)
        ntools.assert_equal(r.args, ex_args)
        ntools.assert_equal(r.kwds, ex_kwds)

    def from_config(cls, config_dict, type_str, uuid):
        merged_config = cls.get_default_config()
        merged_config.update(config_dict)

        # convert factory configuration
        merged_config['wrapped_element_factory'] = \
            DescriptorElementFactory.from_config(
                merged_config['wrapped_element_factory']
            )

        return super(CachingDescriptorElement, cls).from_config(
            merged_config, type_str, uuid
        )

def run_file_list(c, filelist_filepath, checkpoint_filepath, batch_size=None,
                  check_image=False):
    """
    Top level function handling configuration and inputs/outputs.

    :param c: Configuration dictionary (JSON)
    :type c: dict

    :param filelist_filepath: Path to a text file that lists paths to data
        files, separated by new lines.
    :type filelist_filepath: str

    :param checkpoint_filepath: Output file to which we write input filepath to
        SHA1 (UUID) relationships.
    :type checkpoint_filepath:

    :param batch_size: Optional batch size (None default) of data elements to
        process / descriptors to compute at a time. This causes files and
        stores to be written to incrementally during processing instead of
        one single batch transaction at a time.
    :type batch_size:

    """
    log = logging.getLogger(__name__)

    file_paths = [l.strip() for l in open(filelist_filepath)]

    log.info("Making descriptor factory")
    factory = DescriptorElementFactory.from_config(c['descriptor_factory'])

    log.info("Making descriptor index")
    #: :type: smqtk.representation.DescriptorIndex
    descriptor_index = plugin.from_plugin_config(c['descriptor_index'],
                                                 get_descriptor_index_impls())

    log.info("Making descriptor generator '%s'",
             c['descriptor_generator']['type'])
    #: :type: smqtk.algorithms.DescriptorGenerator
    generator = plugin.from_plugin_config(c['descriptor_generator'],
                                          get_descriptor_generator_impls())

    def test_image_load(dfe):
        try:
            PIL.Image.open(io.BytesIO(dfe.get_bytes()))
            return True
        except IOError, ex:
            # noinspection PyProtectedMember
            log.warn("Failed to convert '%s' bytes into an image "
                     "(error: %s). Skipping",
                     dfe._filepath, str(ex))
            return False

def run_file_list(c, filelist_filepath, checkpoint_filepath, batch_size):
    log = logging.getLogger(__name__)

    file_paths = [l.strip() for l in open(filelist_filepath)]

    log.info("Making descriptor factory")
    factory = DescriptorElementFactory.from_config(c["descriptor_factory"])

    log.info("Making descriptor generator '%s'", c["descriptor_generator"]["type"])
    #: :type: smqtk.algorithms.DescriptorGenerator
    generator = from_plugin_config(c["descriptor_generator"], get_descriptor_generator_impls)
    log.info("Making descriptor generator -- Done")

    valid_file_paths = dict()
    invalid_file_paths = dict()

    def iter_valid_elements():
        for fp in file_paths:
            dfe = DataFileElement(fp)
            ct = dfe.content_type()
            if ct in generator.valid_content_types():
                valid_file_paths[fp] = ct
                yield dfe
            else:
                invalid_file_paths[fp] = ct

    log.info("Computing descriptors")
    m = compute_many_descriptors(iter_valid_elements(), generator, factory, batch_size=batch_size)

    # Recording computed file paths and associated file UUIDs (SHA1)
    cf = open(checkpoint_filepath, "a")
    try:
        for fp, descr in m:
            cf.write("{:s},{:s}\n".format(fp, descr.uuid()))
            cf.flush()
    finally:
        cf.close()

    # Output valid file and invalid file dictionaries as pickle
    log.info("Writing valid filepaths map")
    with open("file_map.valid.pickle", "wb") as f:
        cPickle.dump(valid_file_paths, f)
    log.info("Writing invalid filepaths map")
    with open("file_map.invalid.pickle", "wb") as f:
        cPickle.dump(invalid_file_paths, f)

    log.info("Done")