org.hawkular.apm.server.api.utils

Class SourceInfoUtil

java.lang.Object

org.hawkular.apm.server.api.utils.SourceInfoUtil

public class SourceInfoUtil
extends Object

This class represents the capability for initialising the source information.

Author:

gbrown

Method Summary

Modifier and Type	Method and Description
protected static Span	findRootOrServerSpan(String tenantId, Span span, SpanCache spanCache) This method identifies the root or enclosing server span that contains the supplied client span.
static List<SourceInfo>	getSourceInfo(String tenantId, List<Trace> items) This method gets the source information associated with the supplied traces.
static SourceInfo	getSourceInfo(String tenantId, Span serverSpan, SpanCache spanCache) This method attempts to derive the Source Information for the supplied server span.
protected static void	initialiseSourceInfo(List<SourceInfo> sourceInfoList, String tenantId, Trace trace, StringBuffer parentNodeId, int pos, Node node) This method initialises an individual node within a trace.

Methods inherited from class java.lang.Object

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

Method Detail

getSourceInfo

public static List<SourceInfo> getSourceInfo(String tenantId,
                                             List<Trace> items)
                                      throws RetryAttemptException

This method gets the source information associated with the supplied traces.

Parameters:

tenantId - The tenant id

items - The trace instances

Returns:

The source info

Throws:

RetryAttemptException - Failed to initialise source information

initialiseSourceInfo

protected static void initialiseSourceInfo(List<SourceInfo> sourceInfoList,
                                           String tenantId,
                                           Trace trace,
                                           StringBuffer parentNodeId,
                                           int pos,
                                           Node node)

This method initialises an individual node within a trace.

Parameters:

sourceInfoList - The source info list

tenantId - The tenant id

trace - The trace

parentNodeId - The parent node id

node - The node

findRootOrServerSpan

protected static Span findRootOrServerSpan(String tenantId,
                                           Span span,
                                           SpanCache spanCache)

This method identifies the root or enclosing server span that contains the supplied client span.

Parameters:

tenantId - The tenant id

span - The client span

spanCache - The span cache

Returns:

The root or enclosing server span, or null if not found

getSourceInfo

public static SourceInfo getSourceInfo(String tenantId,
                                       Span serverSpan,
                                       SpanCache spanCache)

This method attempts to derive the Source Information for the supplied server span. If the information is not available, then a null will be returned, which can be used to trigger a retry attempt if appropriate.

Parameters:

tenantId - The tenant id

serverSpan - The server span

spanCache - The cache

Returns:

The source information, or null if not found