Package io.vertigo.core.analytics.trace

Class TraceSpan

java.lang.Object

io.vertigo.core.analytics.trace.TraceSpan

public final class TraceSpan
extends Object

A trace is composed of spans A trace is trIggered by an app A span contains - when : start, end, duration - what : name, category - data : measures, tags - a list of child spans [when] - start timestamp - end timestamp [what] - category (examples : sql, tasks) - name (examples : /create/movies) [data] - measures - tags - metadatas [span hierarchy] - list of child spans (0..*)

Version:

$Id: KProcess.java,v 1.8 2012/10/16 17:18:26 pchretien Exp $

Author:

pchretien, npiedeloup

Field Summary

Fields

Modifier and Type	Field	Description
static final String	CATEGORY_SEPARATOR

Method Summary

Modifier and Type	Method	Description
static TraceSpanBuilder	builder(String category, String name)	Static method factory for the span builder
static TraceSpanBuilder	builder(String category, String name, Instant start, Instant end)	Static method factory for the span builder
String	getCategory()
List<TraceSpan>	getChildSpans()
long	getDurationMillis()
long	getEnd()	[when]
Map<String,Double>	getMeasures()
Map<String,String>	getMetadatas()
String	getName()	[what]
long	getStart()	[when]
Map<String,String>	getTags()
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details

CATEGORY_SEPARATOR

public static final String CATEGORY_SEPARATOR

See Also:

• Constant Field Values

Method Details

builder

public static TraceSpanBuilder builder(String category,
 String name)

Static method factory for the span builder

Parameters:

category - the category

name - the name

Returns:

the span builder

builder

public static TraceSpanBuilder builder(String category,
 String name,
 Instant start,
 Instant end)

Static method factory for the span builder

Parameters:

category - the category

name - the name

start - the span start

end - the span end

Returns:

the span builder

getName

public String getName()

[what]

Returns:

the name

getCategory

public String getCategory()

Returns:

the category

getDurationMillis

public long getDurationMillis()

Returns:

the span duration (in milliseconds)

getStart

public long getStart()

[when]

Returns:

the span start timestamp in Millis

getEnd

public long getEnd()

[when]

Returns:

the span end timestamp in Millis

getMeasures

public Map<String,Double> getMeasures()

Returns:

the span measures

getMetadatas

public Map<String,String> getMetadatas()

Returns:

the span metadatas

getTags

public Map<String,String> getTags()

Returns:

the span tags

getChildSpans

public List<TraceSpan> getChildSpans()

Returns:

the list of child spans

toString

public String toString()

Overrides:

toString in class Object