mirror of https://github.com/jumpserver/jumpserver
78 lines
2.5 KiB
Python
78 lines
2.5 KiB
Python
from __future__ import unicode_literals
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import uuid
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from django.db import models
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from django.forms.models import model_to_dict
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from django.core.cache import cache
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from django.utils.translation import ugettext_lazy as _
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from common.utils import get_logger
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logger = get_logger(__name__)
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class Status(models.Model):
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id = models.UUIDField(default=uuid.uuid4, primary_key=True)
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session_online = models.IntegerField(verbose_name=_("Session Online"), default=0)
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cpu_load = models.FloatField(verbose_name=_("CPU Load"), default=0)
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memory_used = models.FloatField(verbose_name=_("Memory Used"))
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disk_used = models.FloatField(verbose_name=_("Disk Used"), default=0)
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connections = models.IntegerField(verbose_name=_("Connections"), default=0)
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threads = models.IntegerField(verbose_name=_("Threads"), default=0)
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boot_time = models.FloatField(verbose_name=_("Boot Time"), default=0)
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terminal = models.ForeignKey('terminal.Terminal', null=True, on_delete=models.CASCADE)
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date_created = models.DateTimeField(auto_now_add=True)
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CACHE_KEY = 'TERMINAL_STATUS_{}'
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class Meta:
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db_table = 'terminal_status'
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get_latest_by = 'date_created'
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verbose_name = _("Status")
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def save_to_cache(self):
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if not self.terminal:
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return
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key = self.CACHE_KEY.format(self.terminal.id)
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data = model_to_dict(self)
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cache.set(key, data, 60*3)
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return data
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@classmethod
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def get_terminal_latest_status(cls, terminal):
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from ..utils import ComputeStatUtil
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stat = cls.get_terminal_latest_stat(terminal)
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return ComputeStatUtil.compute_component_status(stat)
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@classmethod
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def get_terminal_latest_stat(cls, terminal):
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key = cls.CACHE_KEY.format(terminal.id)
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data = cache.get(key)
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if not data:
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return None
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data.pop('terminal', None)
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stat = cls(**data)
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stat.terminal = terminal
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stat.is_alive = terminal.is_alive
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stat.keep_one_decimal_place()
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return stat
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def keep_one_decimal_place(self):
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keys = ['cpu_load', 'memory_used', 'disk_used']
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for key in keys:
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value = getattr(self, key, 0)
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if not isinstance(value, (int, float)):
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continue
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value = '%.1f' % value
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setattr(self, key, float(value))
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def save(self, force_insert=False, force_update=False, using=None,
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update_fields=None):
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self.terminal.set_alive(ttl=120)
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return self.save_to_cache()
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# return super().save()
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