Package com.intergral.deep.agent.tracepoint.handler

Class FrameProcessor

java.lang.Object

com.intergral.deep.agent.tracepoint.handler.VariableProcessor

com.intergral.deep.agent.tracepoint.handler.FrameCollector

com.intergral.deep.agent.tracepoint.handler.FrameProcessor

All Implemented Interfaces:

ISnapshotContext

Direct Known Subclasses:

CFFrameProcessor

public class FrameProcessor
extends FrameCollector
implements ISnapshotContext

This type deals with matching tracepoints to the current state and working out if we can collect the data.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	FrameProcessor.IFactory	This defines a functional interface to allow for creating difference processors in the Callback.

Nested classes/interfaces inherited from class com.intergral.deep.agent.tracepoint.handler.FrameCollector

FrameCollector.IExpressionResult, FrameCollector.IFrameResult, FrameCollector.ILogProcessResult

Nested classes/interfaces inherited from class com.intergral.deep.agent.tracepoint.handler.VariableProcessor

VariableProcessor.VariableResponse

Field Summary

Fields inherited from class com.intergral.deep.agent.tracepoint.handler.FrameCollector

evaluator, settings, variables

Fields inherited from class com.intergral.deep.agent.tracepoint.handler.VariableProcessor

frameConfig

Constructor Summary

Constructors

Constructor	Description
FrameProcessor(Settings settings, IEvaluator evaluator, Map<String,Object> variables, Collection<TracePointConfig> tracePointConfigs, long[] lineStart, StackTraceElement[] stack, String methodName)	Create a new processor for this Callback.

Method Summary

Modifier and Type	Method	Description
boolean	canCollect()	Using the tracePointConfigs can we collect any data at this point.
Collection<EventSnapshot>	collect()	Collect the data into EventSnapshot.
void	configureSelf()	Using the filteredTracepoints update the config to reflect the collection config for this Callback.
String	evaluateExpression(String expression)	Evaluate an expression in the frame of the tracepoint that triggered this snapshot.
Collection<TracePointConfig>	getFilteredTracepoints()
long[]	getLineStart()
IReflection	reflectionService()	Get the current reflection service.

Methods inherited from class com.intergral.deep.agent.tracepoint.handler.FrameCollector

evaluateWatchExpression, getMethodName, isAppFrame, logTracepoint, processAttributes, processFrame, processLogMsg, processNode, processVars, selectVariables

Methods inherited from class com.intergral.deep.agent.tracepoint.handler.VariableProcessor

appendChild, appendVariable, checkDepth, checkId, checkVarCount, closeLookup, configureSelf, newVarId, processChildNodes, processVariable

Methods inherited from class java.lang.Object

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

Constructor Detail

FrameProcessor

public FrameProcessor(Settings settings,
                      IEvaluator evaluator,
                      Map<String,Object> variables,
                      Collection<TracePointConfig> tracePointConfigs,
                      long[] lineStart,
                      StackTraceElement[] stack,
                      String methodName)

Create a new processor for this Callback.

Parameters:

settings - the current settings being used

evaluator - the evaluator to use for watchers and conditions

variables - the variables we have at this state

tracePointConfigs - the tracepoints that are part of this Callback

lineStart - the Tuple of the time this Callback started

stack - the stack trace to use

methodName - the name of the method we are wrapping, or null if not a method wrapped collection

Method Detail

canCollect

public boolean canCollect()

Using the tracePointConfigs can we collect any data at this point.

This method will check the tracepoint config fire count, rate limits, windows and conditions and populate the filteredTracepoints

Returns:

true, if the filteredTracepoints have any values

configureSelf

public void configureSelf()

Using the filteredTracepoints update the config to reflect the collection config for this Callback.

If there are multiple tracepoints being process, the config will reflect the most inclusive, ie the higher number.

collect

public Collection<EventSnapshot> collect()

Collect the data into EventSnapshot.

Returns:

the collected EventSnapshot

evaluateExpression

public String evaluateExpression(String expression)
                          throws EvaluationException

Evaluate an expression in the frame of the tracepoint that triggered this snapshot.

Specified by:

evaluateExpression in interface ISnapshotContext

Parameters:

expression - the express to evaluate

Returns:

the result of the expression as a string

Throws:

EvaluationException - if there were any issues evaluating the expression

reflectionService

public IReflection reflectionService()

Get the current reflection service.

Specified by:

reflectionService in interface ISnapshotContext

Returns:

the active reflection service.

getFilteredTracepoints

public Collection<TracePointConfig> getFilteredTracepoints()

getLineStart

public long[] getLineStart()