#pylint: disable-msg=C0111
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"""
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Internal global error types
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"""
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import sys, traceback
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from traceback import format_exception
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# Add names you want to be imported by 'from errors import *' to this list.
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# This must be list not a tuple as we modify it to include all of our
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# the Exception classes we define below at the end of this file.
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__all__ = ['format_error']
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def format_error():
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t, o, tb = sys.exc_info()
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trace = format_exception(t, o, tb)
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# Clear the backtrace to prevent a circular reference
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# in the heap -- as per tutorial
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tb = ''
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return ''.join(trace)
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class TimeoutException(Exception):
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"""Generic exception raised on retry timeouts."""
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class JobContinue(SystemExit):
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"""Allow us to bail out requesting continuance."""
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class JobComplete(SystemExit):
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"""Allow us to bail out indicating continuation not required."""
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class AutotestError(Exception):
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"""The parent of all errors deliberatly thrown within the client code."""
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class JobError(AutotestError):
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"""Indicates an error which terminates and fails the whole job (ABORT)."""
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class UnhandledJobError(JobError):
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"""Indicates an unhandled error in a job."""
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def __init__(self, unhandled_exception):
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if isinstance(unhandled_exception, JobError):
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JobError.__init__(self, *unhandled_exception.args)
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elif isinstance(unhandled_exception, basestring):
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JobError.__init__(self, unhandled_exception)
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else:
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msg = "Unhandled %s: %s"
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msg %= (unhandled_exception.__class__.__name__,
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unhandled_exception)
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msg += "\n" + traceback.format_exc()
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JobError.__init__(self, msg)
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class TestBaseException(AutotestError):
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"""The parent of all test exceptions."""
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# Children are required to override this. Never instantiate directly.
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exit_status = "NEVER_RAISE_THIS"
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class TestError(TestBaseException):
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"""Indicates that something went wrong with the test harness itself."""
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exit_status = "ERROR"
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class TestNAError(TestBaseException):
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"""Indictates that the test is Not Applicable. Should be thrown
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when various conditions are such that the test is inappropriate."""
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exit_status = "TEST_NA"
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class TestFail(TestBaseException):
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"""Indicates that the test failed, but the job will not continue."""
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exit_status = "FAIL"
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class TestWarn(TestBaseException):
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"""Indicates that bad things (may) have happened, but not an explicit
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failure."""
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exit_status = "WARN"
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class UnhandledTestError(TestError):
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"""Indicates an unhandled error in a test."""
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def __init__(self, unhandled_exception):
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if isinstance(unhandled_exception, TestError):
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TestError.__init__(self, *unhandled_exception.args)
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elif isinstance(unhandled_exception, basestring):
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TestError.__init__(self, unhandled_exception)
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else:
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msg = "Unhandled %s: %s"
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msg %= (unhandled_exception.__class__.__name__,
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unhandled_exception)
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msg += "\n" + traceback.format_exc()
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TestError.__init__(self, msg)
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class UnhandledTestFail(TestFail):
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"""Indicates an unhandled fail in a test."""
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def __init__(self, unhandled_exception):
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if isinstance(unhandled_exception, TestFail):
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TestFail.__init__(self, *unhandled_exception.args)
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elif isinstance(unhandled_exception, basestring):
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TestFail.__init__(self, unhandled_exception)
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else:
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msg = "Unhandled %s: %s"
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msg %= (unhandled_exception.__class__.__name__,
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unhandled_exception)
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msg += "\n" + traceback.format_exc()
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TestFail.__init__(self, msg)
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class CmdError(TestError):
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"""Indicates that a command failed, is fatal to the test unless caught."""
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def __init__(self, command, result_obj, additional_text=None):
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TestError.__init__(self, command, result_obj, additional_text)
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self.command = command
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self.result_obj = result_obj
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self.additional_text = additional_text
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def __str__(self):
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if self.result_obj.exit_status is None:
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msg = "Command <%s> failed and is not responding to signals"
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msg %= self.command
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else:
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msg = "Command <%s> failed, rc=%d"
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msg %= (self.command, self.result_obj.exit_status)
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if self.additional_text:
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msg += ", " + self.additional_text
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msg += '\n' + repr(self.result_obj)
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return msg
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def __eq__(self, other):
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if type(self) == type(other):
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return (self.command == other.command
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and self.result_obj == other.result_obj
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and self.additional_text == other.additional_text)
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else:
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return NotImplemented
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class CmdTimeoutError(CmdError):
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"""Indicates that a command timed out."""
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class PackageError(TestError):
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"""Indicates an error trying to perform a package operation."""
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class BarrierError(JobError):
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"""Indicates an error happened during a barrier operation."""
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class BarrierAbortError(BarrierError):
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"""Indicate that the barrier was explicitly aborted by a member."""
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class InstallError(JobError):
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"""Indicates an installation error which Terminates and fails the job."""
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class AutotestRunError(AutotestError):
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"""Indicates a problem running server side control files."""
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class AutotestTimeoutError(AutotestError):
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"""This exception is raised when an autotest test exceeds the timeout
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parameter passed to run_timed_test and is killed.
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"""
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class GenericHostRunError(Exception):
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"""Indicates a problem in the host run() function running in either client
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or server code.
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Should always be constructed with a tuple of two args (error description
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(str), run result object). This is a common class used to create the client
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and server side versions of it when the distinction is useful.
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"""
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def __init__(self, description, result_obj):
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self.description = description
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self.result_obj = result_obj
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Exception.__init__(self, description, result_obj)
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def __str__(self):
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return self.description + '\n' + repr(self.result_obj)
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class HostInstallTimeoutError(JobError):
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"""
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Indicates the machine failed to be installed after the predetermined
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timeout.
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"""
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class AutotestHostRunError(GenericHostRunError, AutotestError):
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pass
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class AutotestHostRunCmdError(AutotestHostRunError):
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"""Indicates that the command run via Host.run failed.
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This is equivalent to CmdError when raised from a Host object instead of
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directly on the DUT using utils.run
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"""
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def __init__(self, command, result_obj, additional_text=''):
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description = command
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if additional_text:
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description += ' (%s)' % additional_text
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super(AutotestHostRunCmdError, self).__init__(description, result_obj)
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self.command = command
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self.additional_text = additional_text
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class AutotestHostRunTimeoutError(AutotestHostRunCmdError):
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"""Indicates that a command run via Host.run timed out.
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This is equivalent to CmdTimeoutError when raised from a Host object instead
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of directly on the DUT using utils.run
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"""
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# server-specific errors
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class AutoservError(Exception):
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pass
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class AutoservSSHTimeout(AutoservError):
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"""SSH experienced a connection timeout"""
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class AutoservRunError(GenericHostRunError, AutoservError):
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pass
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class AutoservSshPermissionDeniedError(AutoservRunError):
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"""Indicates that a SSH permission denied error was encountered."""
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class AutoservUnsupportedError(AutoservError):
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"""Error raised when you try to use an unsupported optional feature"""
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class AutoservHostError(AutoservError):
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"""Error reaching a host"""
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class AutoservHostIsShuttingDownError(AutoservHostError):
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"""Host is shutting down"""
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class AutoservNotMountedHostError(AutoservHostError):
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"""Found unmounted partitions that should be mounted"""
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class AutoservSshPingHostError(AutoservHostError):
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"""SSH ping failed"""
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class AutoservDiskFullHostError(AutoservHostError):
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"""Not enough free disk space on host"""
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def __init__(self, path, want_gb, free_space_gb):
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super(AutoservDiskFullHostError, self).__init__(
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'Not enough free space on %s - %.3fGB free, want %.3fGB' %
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(path, free_space_gb, want_gb))
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self.path = path
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self.want_gb = want_gb
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self.free_space_gb = free_space_gb
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class AutoservNoFreeInodesError(AutoservHostError):
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"""Not enough free i-nodes on host"""
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def __init__(self, path, want_inodes, free_inodes):
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super(AutoservNoFreeInodesError, self).__init__(
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'Not enough free inodes on %s - %d free, want %d' %
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(path, free_inodes, want_inodes))
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self.path = path
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self.want_inodes = want_inodes
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self.free_inodes = free_inodes
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class AutoservHardwareHostError(AutoservHostError):
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"""Found hardware problems with the host"""
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class AutoservRebootError(AutoservError):
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"""Error occured while rebooting a machine"""
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class AutoservShutdownError(AutoservRebootError):
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"""Error occured during shutdown of machine"""
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class AutoservSuspendError(AutoservRebootError):
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"""Error occured while suspending a machine"""
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class AutoservSubcommandError(AutoservError):
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"""Indicates an error while executing a (forked) subcommand"""
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def __init__(self, func, exit_code):
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AutoservError.__init__(self, func, exit_code)
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self.func = func
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self.exit_code = exit_code
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def __str__(self):
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return ("Subcommand %s failed with exit code %d" %
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(self.func, self.exit_code))
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class AutoservRepairTotalFailure(AutoservError):
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"""Raised if all attempts to repair the DUT failed."""
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class AutoservInstallError(AutoservError):
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"""Error occured while installing autotest on a host"""
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class AutoservPidAlreadyDeadError(AutoservError):
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"""Error occured by trying to kill a nonexistant PID"""
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# packaging system errors
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class PackagingError(AutotestError):
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'Abstract error class for all packaging related errors.'
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class PackageUploadError(PackagingError):
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'Raised when there is an error uploading the package'
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class PackageFetchError(PackagingError):
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'Raised when there is an error fetching the package'
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class PackageRemoveError(PackagingError):
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'Raised when there is an error removing the package'
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class PackageInstallError(PackagingError):
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'Raised when there is an error installing the package'
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class RepoDiskFullError(PackagingError):
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'Raised when the destination for packages is full'
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class RepoWriteError(PackagingError):
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"Raised when packager cannot write to a repo's desitnation"
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class RepoUnknownError(PackagingError):
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"Raised when packager cannot write to a repo's desitnation"
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class RepoError(PackagingError):
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"Raised when a repo isn't working in some way"
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class StageControlFileFailure(Exception):
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"""Exceptions encountered staging control files."""
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class CrosDynamicSuiteException(Exception):
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"""
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Base class for exceptions coming from dynamic suite code in
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server/cros/dynamic_suite/*.
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"""
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class StageBuildFailure(CrosDynamicSuiteException):
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"""Raised when the dev server throws 500 while staging a build."""
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class ControlFileEmpty(CrosDynamicSuiteException):
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"""Raised when the control file exists on the server, but can't be read."""
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class ControlFileMalformed(CrosDynamicSuiteException):
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"""Raised when an invalid control file is read."""
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class AsynchronousBuildFailure(CrosDynamicSuiteException):
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"""Raised when the dev server throws 500 while finishing staging of a build.
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"""
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class SuiteArgumentException(CrosDynamicSuiteException):
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"""Raised when improper arguments are used to run a suite."""
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class MalformedDependenciesException(CrosDynamicSuiteException):
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"""Raised when a build has a malformed dependency_info file."""
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class InadequateHostsException(CrosDynamicSuiteException):
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"""Raised when there are too few hosts to run a suite."""
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class NoHostsException(CrosDynamicSuiteException):
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"""Raised when there are no healthy hosts to run a suite."""
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class ControlFileNotFound(CrosDynamicSuiteException):
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"""Raised when a control file cannot be found and/or read."""
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class NoControlFileList(CrosDynamicSuiteException):
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"""Raised to indicate that a listing can't be done."""
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class SuiteControlFileException(CrosDynamicSuiteException):
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"""Raised when failing to list the contents of all control file."""
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class HostLockManagerReuse(CrosDynamicSuiteException):
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"""Raised when a caller tries to re-use a HostLockManager instance."""
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class ReimageAbortedException(CrosDynamicSuiteException):
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"""Raised when a Reimage job is aborted"""
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class UnknownReimageType(CrosDynamicSuiteException):
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"""Raised when a suite passes in an invalid reimage type"""
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class NoUniquePackageFound(Exception):
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"""Raised when an executable cannot be mapped back to a single package."""
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class RPCException(Exception):
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"""Raised when an RPC encounters an error that a client might wish to
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handle specially."""
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class NoEligibleHostException(RPCException):
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"""Raised when no host could satisfy the requirements of a job."""
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class UnmodifiableLabelException(RPCException):
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"""Raised when an RPC tries to modify static labels."""
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class UnmodifiableAttributeException(RPCException):
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"""Raised when an RPC tries to modify static attributes."""
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class InvalidBgJobCall(Exception):
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"""Raised when an invalid call is made to a BgJob object."""
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class HeartbeatOnlyAllowedInShardModeException(Exception):
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"""Raised when a heartbeat is attempted but not allowed."""
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class UnallowedRecordsSentToMaster(Exception):
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"""Raised when an illegal record was sent from shard to master."""
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class IgnorableUnallowedRecordsSentToMaster(UnallowedRecordsSentToMaster):
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"""Raised when non-fatal illegal record was sent from shard.
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This exception may be raised by rpc model logic on master, but will
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not be returned back to heartbeat client. It indicates that some records
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may have been illegal, but the master is ignoring those records and
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proceeding with the rest of the heartbeat handling.
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"""
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class InvalidDataError(Exception):
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"""Exception raised when invalid data provided for database operation."""
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class ContainerError(Exception):
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"""Exception raised when program runs into error using container."""
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class IllegalUser(Exception):
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"""Exception raise when a program runs as an illegal user."""
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class AutoservDirectoryNotFoundError(AutoservHostError):
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"""Exception raised when an expected directory is not found."""
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class AutoservDiskSizeUnknownError(AutoservHostError):
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"""Exception raised when the disk space could not be determined."""
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# This MUST remain at the end of the file.
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# Limit 'from error import *' to only import the exception instances.
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for _name, _thing in locals().items():
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try:
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if issubclass(_thing, Exception):
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__all__.append(_name)
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except TypeError:
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pass # _thing not a class
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__all__ = tuple(__all__)
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