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opt
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hc_python
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lib64
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python3.8
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site-packages
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prometheus_client
/
openmetrics
/
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files >> //opt/hc_python/lib64/python3.8/site-packages/prometheus_client/openmetrics/exposition.py
#!/usr/bin/env python from ..utils import floatToGoString CONTENT_TYPE_LATEST = 'application/openmetrics-text; version=1.0.0; charset=utf-8' """Content type of the latest OpenMetrics text format""" def _is_valid_exemplar_metric(metric, sample): if metric.type == 'counter' and sample.name.endswith('_total'): return True if metric.type in ('histogram', 'gaugehistogram') and sample.name.endswith('_bucket'): return True return False def generate_latest(registry): '''Returns the metrics from the registry in latest text format as a string.''' output = [] for metric in registry.collect(): try: mname = metric.name output.append('# HELP {} {}\n'.format( mname, metric.documentation.replace('\\', r'\\').replace('\n', r'\n').replace('"', r'\"'))) output.append(f'# TYPE {mname} {metric.type}\n') if metric.unit: output.append(f'# UNIT {mname} {metric.unit}\n') for s in metric.samples: if s.labels: labelstr = '{{{0}}}'.format(','.join( ['{}="{}"'.format( k, v.replace('\\', r'\\').replace('\n', r'\n').replace('"', r'\"')) for k, v in sorted(s.labels.items())])) else: labelstr = '' if s.exemplar: if not _is_valid_exemplar_metric(metric, s): raise ValueError(f"Metric {metric.name} has exemplars, but is not a histogram bucket or counter") labels = '{{{0}}}'.format(','.join( ['{}="{}"'.format( k, v.replace('\\', r'\\').replace('\n', r'\n').replace('"', r'\"')) for k, v in sorted(s.exemplar.labels.items())])) if s.exemplar.timestamp is not None: exemplarstr = ' # {} {} {}'.format( labels, floatToGoString(s.exemplar.value), s.exemplar.timestamp, ) else: exemplarstr = ' # {} {}'.format( labels, floatToGoString(s.exemplar.value), ) else: exemplarstr = '' timestamp = '' if s.timestamp is not None: timestamp = f' {s.timestamp}' output.append('{}{} {}{}{}\n'.format( s.name, labelstr, floatToGoString(s.value), timestamp, exemplarstr, )) except Exception as exception: exception.args = (exception.args or ('',)) + (metric,) raise output.append('# EOF\n') return ''.join(output).encode('utf-8')
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