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# Author: matt.clark@eucalyptus.com
'''
Created on Mar 7, 2012
@author: clarkmatthew
Place holder for volume test specific convenience methods+objects to extend boto's volume class

'''
from boto.ec2.volume import Volume
from eutester.taggedresource import TaggedResource
import eucaops
import time



[docs]class EuVolume(Volume, TaggedResource):
    tester = None
    md5 = None
    md5len = 32
    eutest_failmsg = None
    eutest_laststatus = None
    eutest_laststatustime = None
    eutest_cmdstart = None
    eutest_createorder = None
    eutest_cmdtime = None
    eutest_ageatstatus = None
    '''
    Note: Different hypervisors will honor the requested cloud dev differently, so the requested device can not 
    be relied up as the device it attached to on the guest 'guestdev'
    '''
    guestdev = "" #the guest device name in use by this attached volume
    clouddev = "" #the device name given to the cloud as a request to be used. 
        
    @classmethod
[docs]    def make_euvol_from_vol(cls,volume, tester=None, cmdstart=None):
        newvol = EuVolume(volume.connection)
        newvol.__dict__ = volume.__dict__
        newvol.tester = tester
        newvol.md5 = None
        newvol.md5len = 32
        newvol.eutest_failmsg = None
        newvol.eutest_laststatus = newvol.status
        newvol.eutest_ageatstatus = 0 
        newvol.eutest_cmdstart = cmdstart or eucaops.EC2ops.get_volume_time_created(volume)
        newvol.eutest_createorder = None
        newvol.eutest_cmdtime = None

        return newvol
    
[docs]    def update(self):
        super(EuVolume, self).update()
        self.set_last_status()
    
[docs]    def set_last_status(self,status=None):
        self.eutest_laststatus = self.status
        self.eutest_laststatustime = time.time()
        self.eutest_ageatstatus = "{0:.2f}".format(time.time() - self.eutest_cmdstart)

[docs]    def printself(self,title=True, footer=True, printmethod=None):
        buf = "\n"
        if title:
            buf += str("------------------------------------------------------------------------------------------------------------------------------\n")
            buf += str('VOL_ID').ljust(15)+'|'+str('ORDER').center(5)+'|'+str('LASTSTATUS').center(10)+'|'+str('TESTSTATUS').center(10)+'|'+str('AGE@STATUS').center(10)+'|'+str('SIZE').center(4)+'|'+str('FROM_SNAP').center(15)+'|'+str('MD5_SUM').center(33)+'|'+str('MD5LEN').center(6)+'|'+str('INFO_MSG')+'\n'
            buf += str("------------------------------------------------------------------------------------------------------------------------------\n")
        buf += str(self.id).ljust(15)+'|'+str(self.eutest_createorder).center(5)+'|'+str(self.eutest_laststatus).center(10)+'|'+str(self.status).center(10)+'|'+str(self.eutest_ageatstatus).center(10)+'|'+str(self.size).center(4)+'|'+str(self.snapshot_id).center(15)+'|'+str(self.md5).center(33)+'|'+str(self.md5len).center(6)+'|'+str(self.eutest_failmsg).rstrip()+"\n"
        if footer:
            buf += str("------------------------------------------------------------------------------------------------------------------------------")
        if printmethod:
            printmethod(buf)
        return buf