java.lang.Object
- org.springframework.boot.actuate.metrics.export.AbstractMetricExporter
- - org.springframework.boot.actuate.metrics.export.MetricCopyExporter

所有已实现的接口:
Closeable, Flushable, AutoCloseable, Exporter
```
public class MetricCopyExporter
extends AbstractMetricExporter
```
Exporter that "exports" by copying metric data from a source MetricReader to a destination MetricWriter. Actually the output writer can be a GaugeWriter, in which case all metrics are simply output as their current value. If the output writer is also a CounterWriter then metrics whose names begin with "counter." are special: instead of writing them out as simple gauges the writer will increment the counter value. This involves the exporter storing the previous value of the counter so the delta can be computed. For best results with the counters, do not use the exporter concurrently in multiple threads (normally it will only be used periodically and sequentially, even if it is in a background thread, and this is fine).
从以下版本开始:
1.3.0

构造器概要

构造器
构造器	说明
`MetricCopyExporter(MetricReader reader, GaugeWriter writer)`	Create a new `MetricCopyExporter` instance.
`MetricCopyExporter(MetricReader reader, GaugeWriter writer, String prefix)`	Create a new `MetricCopyExporter` instance.

方法概要

所有方法实例方法具体方法
修饰符和类型	方法	说明
`void`	`flush()`
`protected Iterable<Metric<?>>`	`next(String group)`	Get the next group of metrics to write.
`void`	`setExcludes(String... excludes)`	Set the exclude patterns used to filter metrics.
`void`	`setIncludes(String... includes)`	Set the include patterns used to filter metrics.
`protected void`	`write(String group, Collection<Metric<?>> values)`	Write the values associated with a group.

从类继承的方法 org.springframework.boot.actuate.metrics.export.AbstractMetricExporter
close, export, groups, setEarliestTimestamp, setIgnoreTimestamps, setSendLatest

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 构造器详细资料
  - MetricCopyExporter
```
public MetricCopyExporter(MetricReader reader,
                          GaugeWriter writer)
```
    Create a new MetricCopyExporter instance.
    参数:
    reader - the metric reader
    writer - the metric writer
  - MetricCopyExporter
```
public MetricCopyExporter(MetricReader reader,
                          GaugeWriter writer,
                          String prefix)
```
    Create a new MetricCopyExporter instance.
    参数:
    reader - the metric reader
    writer - the metric writer
    prefix - the name prefix
- 方法详细资料
  - setIncludes
```
public void setIncludes(String... includes)
```
    Set the include patterns used to filter metrics.
    参数:
    includes - the include patterns
  - setExcludes
```
public void setExcludes(String... excludes)
```
    Set the exclude patterns used to filter metrics.
    参数:
    excludes - the exclude patterns
  - next
```
protected Iterable<Metric<?>> next(String group)
```
    从类复制的说明: AbstractMetricExporter
    Get the next group of metrics to write.
    指定者:
    next 在类中 AbstractMetricExporter
    参数:
    group - the group name to write
    返回:
    some metrics to write
  - write
```
protected void write(String group,
                     Collection<Metric<?>> values)
```
    从类复制的说明: AbstractMetricExporter
    Write the values associated with a group.
    指定者:
    write 在类中 AbstractMetricExporter
    参数:
    group - the group to write
    values - the values to write
  - flush
```
public void flush()
```
    指定者:
    flush 在接口中 Flushable
    覆盖:
    flush 在类中 AbstractMetricExporter

类 MetricCopyExporter

构造器概要

方法概要

从类继承的方法 org.springframework.boot.actuate.metrics.export.AbstractMetricExporter

从类继承的方法 java.lang.Object

构造器详细资料

MetricCopyExporter

MetricCopyExporter

方法详细资料

setIncludes

setExcludes

next

write

flush