CyberAlphaWolf

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User : kikai ( 1014)
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Directory : /lib/fm-agent/library/

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Current File : //lib/fm-agent/library/process_manager.py

import pwd
import os


class ProcessManager(object):
    def get_process_from_user(self, pids, username):
        """
        Return only the pids belonging to certain username.
        """
        filtered_pids = [
            pid
            for pid in pids
            if os.path.isdir("/proc/%s" % pid)
            if self.get_owner_name("/proc/%s" % pid) == username
        ]
        return filtered_pids

    def get_owner_name(self, pid):
        """
        Return the owner name of the passed pid.
        """
        try:
            return pwd.getpwuid(os.stat(pid).st_uid)[0]
        except os.error:
            return None

    def filter_non_pid_process(self, process_list):
        """
        Filter non pid process from the list, by checking that they are
        castable to integers.
        """
        return list(filter(str.isdigit, process_list))