TestHandler

java.lang.Object
- io.opencensus.trace.export.SpanExporter.Handler
- - io.opencensus.testing.export.TestHandler

public final class TestHandler
extends SpanExporter.Handler

A SpanExporter.Handler for testing only.

Since:: 0.9

Field Summary

Fields
Modifier and Type Field Description

private java.lang.Object monitor

private java.util.List<SpanData> spanDataList

Constructor Summary

Constructors
Constructor Description

TestHandler()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`export(java.util.Collection<SpanData> spanDataList)`	Exports a list of sampled (see `TraceOptions.isSampled()`) `Span`s using the immutable representation `SpanData`.
`java.util.List<SpanData>`	`waitForExport(int numberOfSpans)`	Waits until we received numberOfSpans spans to export.

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

- Field Detail
  - monitor
```
private final java.lang.Object monitor
```
  - spanDataList
```
private final java.util.List<SpanData> spanDataList
```
- Constructor Detail
  - TestHandler
```
public TestHandler()
```
- Method Detail
  - export
```
public void export(java.util.Collection<SpanData> spanDataList)
```
    Description copied from class: SpanExporter.Handler
    
    Exports a list of sampled (see TraceOptions.isSampled()) Spans using the immutable representation SpanData.
    This may be called from a different thread than the one that called Span.end().
    Implementation SHOULD not block the calling thread. It should execute the export on a different thread if possible.
    
    Specified by:
    
    export in class SpanExporter.Handler
    
    Parameters:
    
    spanDataList - a list of SpanData objects to be exported.
  - waitForExport
```
@Nullable
public java.util.List<SpanData> waitForExport(int numberOfSpans)
```
    Waits until we received numberOfSpans spans to export. Returns the list of exported SpanData objects, otherwise null if the current thread is interrupted.
    
    Parameters:
    
    numberOfSpans - the number of minimum spans to be collected.
    
    Returns:
    
    the list of exported SpanData objects, otherwise null if the current thread is interrupted.
    
    Since:
    
    0.9