Collector (Prometheus Java Simpleclient 0.8.1 API)

java.lang.Object
- io.prometheus.client.Collector

Direct Known Subclasses:

SimpleCollector
```
public abstract class Collector
extends Object
```
A collector for a set of metrics.
Normal users should use Gauge, Counter, Summary and Histogram.
Subclasssing Collector is for advanced uses, such as proxying metrics from another monitoring system. It is it the responsibility of subclasses to ensure they produce valid metrics.

See Also:

Exposition formats.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static interface`	`Collector.Describable`
`static class`	`Collector.MetricFamilySamples`	A metric, and all of its samples.
`static class`	`Collector.Type`

Field Summary

Fields
Modifier and Type	Field	Description
`static double`	`MILLISECONDS_PER_SECOND`	Number of milliseconds in a second.
`static double`	`NANOSECONDS_PER_SECOND`	Number of nanoseconds in a second.

Constructor Summary

Constructors
Constructor Description

Collector()

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`protected static void`	`checkMetricLabelName(String name)`	Throw an exception if the metric label name is invalid.
`protected static void`	`checkMetricName(String name)`	Throw an exception if the metric name is invalid.
`abstract List<Collector.MetricFamilySamples>`	`collect()`	Return all of the metrics of this Collector.
`static String`	`doubleToGoString(double d)`	Convert a double to its string representation in Go.
`<T extends Collector> T`	`register()`	Register the Collector with the default registry.
`<T extends Collector> T`	`register(CollectorRegistry registry)`	Register the Collector with the given registry.
`static String`	`sanitizeMetricName(String metricName)`	Sanitize metric name

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - NANOSECONDS_PER_SECOND
```
public static final double NANOSECONDS_PER_SECOND
```
    Number of nanoseconds in a second.
    
    See Also:
    
    Constant Field Values
  - MILLISECONDS_PER_SECOND
```
public static final double MILLISECONDS_PER_SECOND
```
    Number of milliseconds in a second.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - Collector
```
public Collector()
```
- Method Detail
  - collect
```
public abstract List<Collector.MetricFamilySamples> collect()
```
    Return all of the metrics of this Collector.
  - register
```
public <T extends Collector> T register()
```
    Register the Collector with the default registry.
  - register
```
public <T extends Collector> T register(CollectorRegistry registry)
```
    Register the Collector with the given registry.
  - checkMetricName
```
protected static void checkMetricName(String name)
```
    Throw an exception if the metric name is invalid.
  - sanitizeMetricName
```
public static String sanitizeMetricName(String metricName)
```
    Sanitize metric name
  - checkMetricLabelName
```
protected static void checkMetricLabelName(String name)
```
    Throw an exception if the metric label name is invalid.
  - doubleToGoString
```
public static String doubleToGoString(double d)
```
    Convert a double to its string representation in Go.