import openhab
from java.lang.management import ManagementFactory
jmx_beans = {
'Threads' : ManagementFactory.getThreadMXBean(),
'Memory' : ManagementFactory.getMemoryMXBean(),
}
for bean in ManagementFactory.getMemoryPoolMXBeans():
jmx_beans[bean.name] = bean
@openhab.rule
class JmxBinding(object):
# Binding all items in one rule to avoid numerous timers. If some items
# should be updated at a different frequencies, then multiple rules can be
# instantiated.
def __init__(self, item_specs, cronspec="0 * * * * ?"):
self._item_specs = item_specs
self._cronspec = cronspec
def getEventTrigger(self):
return [
StartupTrigger(),
TimerTrigger(self._cronspec)
]
def execute(self, event):
for item_name, bean_name, attr_path, transform in self._item_specs:
try:
bean = jmx_beans.get(bean_name)
