Reference documentation and code samples for the Stackdriver Logging V2 Client class LogMetric.
Describes a logs-based metric. The value of the metric is the number of log entries that match a logs filter in a given time interval.
Logs-based metrics can also be used to extract values from logs and create a distribution of the values. The distribution records the statistics of the extracted values along with an optional histogram of the values as specified by the bucket options.
Generated from protobuf message google.logging.v2.LogMetric
Methods
__construct
Constructor.
| Parameters | |
|---|---|
| Name | Description |
data |
array
Optional. Data for populating the Message object. |
↳ name |
string
Required. The client-assigned metric identifier. Examples: |
↳ description |
string
Optional. A description of this metric, which is used in documentation. The maximum length of the description is 8000 characters. |
↳ filter |
string
Required. An advanced logs filter which is used to match log entries. Example: "resource.type=gae_app AND severity>=ERROR" The maximum length of the filter is 20000 characters. |
↳ disabled |
bool
Optional. If set to True, then this metric is disabled and it does not generate any points. |
↳ metric_descriptor |
Google\Api\MetricDescriptor
Optional. The metric descriptor associated with the logs-based metric. If unspecified, it uses a default metric descriptor with a DELTA metric kind, INT64 value type, with no labels and a unit of "1". Such a metric counts the number of log entries matching the |
↳ value_extractor |
string
Optional. A |
↳ label_extractors |
array|Google\Protobuf\Internal\MapField
Optional. A map from a label key string to an extractor expression which is used to extract data from a log entry field and assign as the label value. Each label key specified in the LabelDescriptor must have an associated extractor expression in this map. The syntax of the extractor expression is the same as for the |
↳ bucket_options |
Google\Api\Distribution\BucketOptions
Optional. The |
↳ create_time |
Google\Protobuf\Timestamp
Output only. The creation timestamp of the metric. This field may not be present for older metrics. |
↳ update_time |
Google\Protobuf\Timestamp
Output only. The last update timestamp of the metric. This field may not be present for older metrics. |
↳ version |
int
Deprecated. The API version that created or updated this metric. The v2 format is used by default and cannot be changed. |
getName
Required. The client-assigned metric identifier.
Examples: "error_count", "nginx/requests".
Metric identifiers are limited to 100 characters and can include only the
following characters: A-Z, a-z, 0-9, and the special characters
_-.,+!*',()%/. The forward-slash character (/) denotes a hierarchy of
name pieces, and it cannot be the first character of the name.
This field is the [METRIC_ID] part of a metric resource name in the
format "projects/[PROJECT_ID]/metrics/[METRIC_ID]". Example: If the
resource name of a metric is
"projects/my-project/metrics/nginx%2Frequests", this field's value is
"nginx/requests".
| Returns | |
|---|---|
| Type | Description |
string | |
setName
Required. The client-assigned metric identifier.
Examples: "error_count", "nginx/requests".
Metric identifiers are limited to 100 characters and can include only the
following characters: A-Z, a-z, 0-9, and the special characters
_-.,+!*',()%/. The forward-slash character (/) denotes a hierarchy of
name pieces, and it cannot be the first character of the name.
This field is the [METRIC_ID] part of a metric resource name in the
format "projects/[PROJECT_ID]/metrics/[METRIC_ID]". Example: If the
resource name of a metric is
"projects/my-project/metrics/nginx%2Frequests", this field's value is
"nginx/requests".
| Parameter | |
|---|---|
| Name | Description |
var |
string
|
| Returns | |
|---|---|
| Type | Description |
$this | |
getDescription
Optional. A description of this metric, which is used in documentation.
The maximum length of the description is 8000 characters.
| Returns | |
|---|---|
| Type | Description |
string | |
setDescription
Optional. A description of this metric, which is used in documentation.
The maximum length of the description is 8000 characters.
| Parameter | |
|---|---|
| Name | Description |
var |
string
|
| Returns | |
|---|---|
| Type | Description |
$this | |
getFilter
Required. An advanced logs filter which is used to match log entries. Example: "resource.type=gae_app AND severity>=ERROR" The maximum length of the filter is 20000 characters.
| Returns | |
|---|---|
| Type | Description |
string | |
setFilter
Required. An advanced logs filter which is used to match log entries. Example: "resource.type=gae_app AND severity>=ERROR" The maximum length of the filter is 20000 characters.
| Parameter | |
|---|---|
| Name | Description |
var |
string
|
| Returns | |
|---|---|
| Type | Description |
$this | |
getDisabled
Optional. If set to True, then this metric is disabled and it does not generate any points.
| Returns | |
|---|---|
| Type | Description |
bool | |
setDisabled
Optional. If set to True, then this metric is disabled and it does not generate any points.
| Parameter | |
|---|---|
| Name | Description |
var |
bool
|
| Returns | |
|---|---|
| Type | Description |
$this | |
getMetricDescriptor
Optional. The metric descriptor associated with the logs-based metric.
If unspecified, it uses a default metric descriptor with a DELTA metric
kind, INT64 value type, with no labels and a unit of "1". Such a metric
counts the number of log entries matching the filter expression.
The name, type, and description fields in the metric_descriptor
are output only, and is constructed using the name and description
field in the LogMetric.
To create a logs-based metric that records a distribution of log values, a
DELTA metric kind with a DISTRIBUTION value type must be used along with
a value_extractor expression in the LogMetric.
Each label in the metric descriptor must have a matching label
name as the key and an extractor expression as the value in the
label_extractors map.
The metric_kind and value_type fields in the metric_descriptor cannot
be updated once initially configured. New labels can be added in the
metric_descriptor, but existing labels cannot be modified except for
their description.
| Returns | |
|---|---|
| Type | Description |
Google\Api\MetricDescriptor|null | |
hasMetricDescriptor
clearMetricDescriptor
setMetricDescriptor
Optional. The metric descriptor associated with the logs-based metric.
If unspecified, it uses a default metric descriptor with a DELTA metric
kind, INT64 value type, with no labels and a unit of "1". Such a metric
counts the number of log entries matching the filter expression.
The name, type, and description fields in the metric_descriptor
are output only, and is constructed using the name and description
field in the LogMetric.
To create a logs-based metric that records a distribution of log values, a
DELTA metric kind with a DISTRIBUTION value type must be used along with
a value_extractor expression in the LogMetric.
Each label in the metric descriptor must have a matching label
name as the key and an extractor expression as the value in the
label_extractors map.
The metric_kind and value_type fields in the metric_descriptor cannot
be updated once initially configured. New labels can be added in the
metric_descriptor, but existing labels cannot be modified except for
their description.
| Parameter | |
|---|---|
| Name | Description |
var |
Google\Api\MetricDescriptor
|
| Returns | |
|---|---|
| Type | Description |
$this | |
getValueExtractor
Optional. A value_extractor is required when using a distribution
logs-based metric to extract the values to record from a log entry.
Two functions are supported for value extraction: EXTRACT(field) or
REGEXP_EXTRACT(field, regex). The argument are:
- field: The name of the log entry field from which the value is to be extracted.
- regex: A regular expression using the Google RE2 syntax
(https://github.com/google/re2/wiki/Syntax) with a single capture
group to extract data from the specified log entry field. The value
of the field is converted to a string before applying the regex.
It is an error to specify a regex that does not include exactly one
capture group.
The result of the extraction must be convertible to a double type, as the
distribution always records double values. If either the extraction or
the conversion to double fails, then those values are not recorded in the
distribution.
Example:
REGEXP_EXTRACT(jsonPayload.request, ".*quantity=(\d+).*")
| Returns | |
|---|---|
| Type | Description |
string | |
setValueExtractor
Optional. A value_extractor is required when using a distribution
logs-based metric to extract the values to record from a log entry.
Two functions are supported for value extraction: EXTRACT(field) or
REGEXP_EXTRACT(field, regex). The argument are:
- field: The name of the log entry field from which the value is to be extracted.
- regex: A regular expression using the Google RE2 syntax
(https://github.com/google/re2/wiki/Syntax) with a single capture
group to extract data from the specified log entry field. The value
of the field is converted to a string before applying the regex.
It is an error to specify a regex that does not include exactly one
capture group.
The result of the extraction must be convertible to a double type, as the
distribution always records double values. If either the extraction or
the conversion to double fails, then those values are not recorded in the
distribution.
Example:
REGEXP_EXTRACT(jsonPayload.request, ".*quantity=(\d+).*")
| Parameter | |
|---|---|
| Name | Description |
var |
string
|
| Returns | |
|---|---|
| Type | Description |
$this | |
getLabelExtractors
Optional. A map from a label key string to an extractor expression which is used to extract data from a log entry field and assign as the label value.
Each label key specified in the LabelDescriptor must have an associated
extractor expression in this map. The syntax of the extractor expression
is the same as for the value_extractor field.
The extracted value is converted to the type defined in the label
descriptor. If the either the extraction or the type conversion fails,
the label will have a default value. The default value for a string
label is an empty string, for an integer label its 0, and for a boolean
label its false.
Note that there are upper bounds on the maximum number of labels and the
number of active time series that are allowed in a project.
| Returns | |
|---|---|
| Type | Description |
Google\Protobuf\Internal\MapField | |
setLabelExtractors
Optional. A map from a label key string to an extractor expression which is used to extract data from a log entry field and assign as the label value.
Each label key specified in the LabelDescriptor must have an associated
extractor expression in this map. The syntax of the extractor expression
is the same as for the value_extractor field.
The extracted value is converted to the type defined in the label
descriptor. If the either the extraction or the type conversion fails,
the label will have a default value. The default value for a string
label is an empty string, for an integer label its 0, and for a boolean
label its false.
Note that there are upper bounds on the maximum number of labels and the
number of active time series that are allowed in a project.
| Parameter | |
|---|---|
| Name | Description |
var |
array|Google\Protobuf\Internal\MapField
|
| Returns | |
|---|---|
| Type | Description |
$this | |
getBucketOptions
Optional. The bucket_options are required when the logs-based metric is
using a DISTRIBUTION value type and it describes the bucket boundaries
used to create a histogram of the extracted values.
| Returns | |
|---|---|
| Type | Description |
Google\Api\Distribution\BucketOptions|null | |
hasBucketOptions
clearBucketOptions
setBucketOptions
Optional. The bucket_options are required when the logs-based metric is
using a DISTRIBUTION value type and it describes the bucket boundaries
used to create a histogram of the extracted values.
| Parameter | |
|---|---|
| Name | Description |
var |
Google\Api\Distribution\BucketOptions
|
| Returns | |
|---|---|
| Type | Description |
$this | |
getCreateTime
Output only. The creation timestamp of the metric.
This field may not be present for older metrics.
| Returns | |
|---|---|
| Type | Description |
Google\Protobuf\Timestamp|null | |
hasCreateTime
clearCreateTime
setCreateTime
Output only. The creation timestamp of the metric.
This field may not be present for older metrics.
| Parameter | |
|---|---|
| Name | Description |
var |
Google\Protobuf\Timestamp
|
| Returns | |
|---|---|
| Type | Description |
$this | |
getUpdateTime
Output only. The last update timestamp of the metric.
This field may not be present for older metrics.
| Returns | |
|---|---|
| Type | Description |
Google\Protobuf\Timestamp|null | |
hasUpdateTime
clearUpdateTime
setUpdateTime
Output only. The last update timestamp of the metric.
This field may not be present for older metrics.
| Parameter | |
|---|---|
| Name | Description |
var |
Google\Protobuf\Timestamp
|
| Returns | |
|---|---|
| Type | Description |
$this | |
getVersion
Deprecated. The API version that created or updated this metric.
The v2 format is used by default and cannot be changed.
| Returns | |
|---|---|
| Type | Description |
int | |
setVersion
Deprecated. The API version that created or updated this metric.
The v2 format is used by default and cannot be changed.
| Parameter | |
|---|---|
| Name | Description |
var |
int
|
| Returns | |
|---|---|
| Type | Description |
$this | |