Source code for hyperstream.config

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"""
HyperStream configuration module.
"""

import logging
import json
import os

from .utils import Printable, ConfigurationError
from .plugin_manager import Plugin
from .time_interval import RelativeTimeInterval


[docs]class OnlineEngineConfig(Printable): def __init__(self, interval, sleep=5, iterations=100, alarm=None): self.interval = RelativeTimeInterval(**interval) self.sleep = sleep self.iterations = iterations self.alarm = sleep * iterations if not alarm else alarm
[docs]class HyperStreamConfig(Printable): """ Wrapper around the hyperstream configuration file """ def __init__(self, filename="hyperstream_config.json"): """ Initialise the configuration - currently uses fixed file name (hyperstream_config.json) """ self.mongo = None try: with open(filename, 'r') as f: logging.getLogger("hyperstream") logging.info('Reading ' + os.path.abspath(f.name)) config = json.load(f) self.mongo = config['mongo'] self.history_channel = config.get('history_channel', 'memory') self.output_path = config.get('output_path', 'output') self.plugins = [Plugin(**p) for p in config.get('plugins', [])] self.online_engine = OnlineEngineConfig(**config["online_engine"]) except (OSError, IOError, TypeError) as e: raise ConfigurationError(str(e))
# logging.error("Configuration error: " + str(e))