org.htrace

Class TraceTree

java.lang.Object

org.htrace.TraceTree

public class TraceTree
extends Object

Used to create the graph formed by spans.

Field Summary

Fields

Modifier and Type	Field and Description
static org.apache.commons.logging.Log	LOG

Constructor Summary

Constructors

Constructor and Description
TraceTree(Collection<Span> spans) Create a new TraceTree

Method Summary

Methods

Modifier and Type	Method and Description
Collection<Span>	getRoots()
Collection<Span>	getSpans()
com.google.common.collect.Multimap<Long,Span>	getSpansByParentIdMap()
com.google.common.collect.Multimap<String,Span>	getSpansByPidMap()

Methods inherited from class java.lang.Object

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

Field Detail

LOG

public static final org.apache.commons.logging.Log LOG

Constructor Detail

TraceTree

public TraceTree(Collection<Span> spans)

Create a new TraceTree

Parameters:

spans - The collection of spans to use to create this TraceTree. Should have at least one root span (span with parentId = Span.ROOT_SPAN_ID

Method Detail

getSpans

public Collection<Span> getSpans()

Returns:

The collection of spans given to this TraceTree at construction.

getSpansByParentIdMap

public com.google.common.collect.Multimap<Long,Span> getSpansByParentIdMap()

Returns:

A copy of the MultiMap from parent span ID -> children of span with that ID.

getRoots

public Collection<Span> getRoots()

Returns:

A collection of the root spans (spans with parent ID = Span.ROOT_SPAN_ID) in this tree.

getSpansByPidMap

public com.google.common.collect.Multimap<String,Span> getSpansByPidMap()

Returns:

A copy of the Multimap from String process ID -> spans with that process ID. If process ID was not set in Trace.java, all spans will have empty string process IDs.