normalizer.py 文件源码

def format_node(cls, mapping, metric):
        if mapping.tag in [
                'tag:yaml.org,2002:str', Bytes2Kibibytes.yaml_tag,
                Number.yaml_tag, StripExtraDash.yaml_tag]:
            return yaml.ScalarNode(mapping.tag, mapping.value.format(**metric))
        elif mapping.tag == 'tag:yaml.org,2002:map':
            values = []
            for key, value in mapping.value:
                values.append((yaml.ScalarNode(key.tag, key.value),
                              cls.format_node(value, metric)))
            return yaml.MappingNode(mapping.tag, values)
        elif mapping.tag in [ArrayItem.yaml_tag, ValueItem.yaml_tag]:
            values = []
            for seq in mapping.value:
                map_values = list()
                for key, value in seq.value:
                    if key.value == 'SELECT':
                        map_values.append((yaml.ScalarNode(key.tag, key.value),
                                          cls.format_node(value, metric)))
                    else:
                        map_values.append((yaml.ScalarNode(key.tag, key.value),
                                          value))
                values.append(yaml.MappingNode(seq.tag, map_values))
            return yaml.SequenceNode(mapping.tag, values)
        elif mapping.tag in [MapValue.yaml_tag]:
            values = []
            for key, value in mapping.value:
                if key.value == 'VALUE':
                    values.append((yaml.ScalarNode(key.tag, key.value),
                                  cls.format_node(value, metric)))
                else:
                    values.append((yaml.ScalarNode(key.tag, key.value), value))
            return yaml.MappingNode(mapping.tag, values)
        return mapping