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| 1 # Copyright 2015 The Chromium Authors. All rights reserved. | |
| 2 # Use of this source code is governed by a BSD-style license that can be | |
| 3 # found in the LICENSE file. | |
| 4 | |
| 5 """Classes representing errors that can be raised by the monitoring library.""" | |
| 6 | |
| 7 | |
| 8 class MonitoringError(Exception): | |
| 9 """Base class for exceptions raised by this module.""" | |
| 10 | |
| 11 | |
| 12 class MonitoringDecreasingValueError(MonitoringError): | |
| 13 """Raised when setting a metric value that should increase but doesn't.""" | |
| 14 | |
| 15 def __init__(self, metric, old_value, new_value): | |
| 16 self.metric = metric | |
| 17 self.old_value = old_value | |
| 18 self.new_value = new_value | |
| 19 | |
| 20 def __str__(self): | |
| 21 return ('Monotonically increasing metric "%s" was given value "%s", which ' | |
| 22 'is not greater than or equal to "%s".' % ( | |
| 23 self.metric, self.new_value, self.old_value)) | |
| 24 | |
| 25 | |
| 26 class MonitoringDuplicateRegistrationError(MonitoringError): | |
| 27 """Raised when trying to register a metric with the same name as another.""" | |
| 28 | |
| 29 def __init__(self, metric): | |
| 30 self.metric = metric | |
| 31 | |
| 32 def __str__(self): | |
| 33 return 'Different metrics with the same name "%s" were both registered.' % ( | |
| 34 self.metric) | |
| 35 | |
| 36 | |
| 37 class MonitoringIncrementUnsetValueError(MonitoringError): | |
| 38 """Raised when trying to increment a metric which hasn't been set.""" | |
| 39 | |
| 40 def __init__(self, metric): | |
| 41 self.metric = metric | |
| 42 | |
| 43 def __str__(self): | |
| 44 return 'Metric "%s" was incremented without first setting a value.' % ( | |
| 45 self.metric) | |
| 46 | |
| 47 | |
| 48 class MonitoringInvalidValueTypeError(MonitoringError): | |
| 49 """Raised when sending a metric value is not a valid type.""" | |
| 50 | |
| 51 def __init__(self, metric, value): | |
| 52 self.metric = metric | |
| 53 self.value = value | |
| 54 | |
| 55 def __str__(self): | |
| 56 return 'Metric "%s" was given invalid value "%s" (%s).' % ( | |
| 57 self.metric, self.value, type(self.value)) | |
| 58 | |
| 59 | |
| 60 class MonitoringInvalidFieldTypeError(MonitoringError): | |
| 61 """Raised when sending a metric with a field value of an invalid type.""" | |
| 62 | |
| 63 def __init__(self, metric, field, value): | |
| 64 self.metric = metric | |
| 65 self.field = field | |
| 66 self.value = value | |
| 67 | |
| 68 def __str__(self): | |
| 69 return 'Metric "%s" was given field "%s" with invalid value "%s" (%s).' % ( | |
| 70 self.metric, self.field, self.value, type(self.value)) | |
| 71 | |
| 72 | |
| 73 class MonitoringTooManyFieldsError(MonitoringError): | |
| 74 """Raised when sending a metric with more than 7 fields.""" | |
| 75 | |
| 76 def __init__(self, metric, fields): | |
| 77 self.metric = metric | |
| 78 self.fields = fields | |
| 79 | |
| 80 def __str__(self): | |
| 81 return 'Metric "%s" was given too many (%d > 7) fields: %s.' % ( | |
| 82 self.metric, len(self.fields), self.fields) | |
| 83 | |
| 84 | |
| 85 class MonitoringNoConfiguredMonitorError(MonitoringError): | |
| 86 """Raised when sending a metric without configuring the global Monitor.""" | |
| 87 | |
| 88 def __init__(self, metric): | |
| 89 self.metric = metric | |
| 90 | |
| 91 def __str__(self): | |
| 92 if self.metric is not None: | |
| 93 return 'Metric "%s" was sent before initializing the global Monitor.' % ( | |
| 94 self.metric) | |
| 95 else: | |
| 96 return 'Metrics were sent before initializing the global Monitor.' | |
| 97 | |
| 98 | |
| 99 class MonitoringNoConfiguredTargetError(MonitoringError): | |
| 100 """Raised when sending a metric with no global nor local Target.""" | |
| 101 | |
| 102 def __init__(self, metric): | |
| 103 self.metric = metric | |
| 104 | |
| 105 def __str__(self): | |
| 106 return 'Metric "%s" was sent with no Target configured.' % (self.metric) | |
| 107 | |
| 108 | |
| 109 class UnknownModificationTypeError(MonitoringError): | |
| 110 """Raised when using a Modification with an unknown type value.""" | |
| 111 | |
| 112 def __init__(self, mod_type): | |
| 113 self.mod_type = mod_type | |
| 114 | |
| 115 def __str__(self): | |
| 116 return 'Unknown modification type "%s"' % self.mod_type | |
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Chromium Code Reviews
Issue 2213143002:
Add infra_libs as a bootstrap dependency. (Closed)
Base URL: https://chromium.googlesource.com/infra/infra.git@master