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

static org.apache.commons.logging.Log

LOG

Constructor Summary

TraceTree(Collection<Span> spans)
Create a new TraceTree

Method Summary

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.