Package org.hansken.plugin.extraction.runtime.grpc.client.api

Interface ClientTrace

All Superinterfaces:

AutoCloseable, ImmutableTrace, Trace

public interface ClientTrace
extends Trace, AutoCloseable

Trace for client side implementations. Compared to other trace implementations it has a different way of creating children. Instead of enriching a child trace within a given scope, the child is returned for the caller to enrich.

The reason for this is that keeping this scope synchronized between client and server is difficult and requires us to keep state in a complex way (because the full trace tree is not necessarily sent at once from server to client).

Nested Class Summary

Nested classes/interfaces inherited from interface org.hansken.plugin.extraction.api.Trace

Trace.Tracelet, Trace.TraceletBuilder, Trace.TraceletProperty

Method Summary

Modifier and Type	Method	Description
default void	close()	Default implementation which calls save().
String	name()	Get the name of the ClientTrace.
ClientTrace	newChild(String name)	See Trace.newChild(String, ThrowingConsumer), but returns the new child trace.
default Trace	newChild(String name, ThrowingConsumer<Trace,IOException> enrichChildCallback)	Implementation which by default throws an exception.
Optional<PluginRunProfile>	profile()	Returns the PluginRunProfile returned by the plugin.
void	profile(PluginRunProfile profile)	Set the PluginRunProfile at the end of an extraction.
void	save()	Save this child trace in the backing storage.

Methods inherited from interface org.hansken.plugin.extraction.api.ImmutableTrace

get, properties, traceId, types

Methods inherited from interface org.hansken.plugin.extraction.api.Trace

addTracelet, addTracelet, addType, addValue, getNewTracelets, set, setData, setData, setData, setData

Method Details

name

String name()

Get the name of the ClientTrace. It should be unique among its siblings.

Returns:

the name of the trace

newChild

default Trace newChild(String name,
 ThrowingConsumer<Trace,IOException> enrichChildCallback)
                throws IOException

Implementation which by default throws an exception.

Specified by:

newChild in interface Trace

Parameters:

name - the name of the child

enrichChildCallback - consumer that gets the new child trace as input

Returns:

nothing

Throws:

IOException

newChild

ClientTrace newChild(String name)

See Trace.newChild(String, ThrowingConsumer), but returns the new child trace.

Note: clients using this method must take care to save() the returned traces manually.

Parameters:

name - the name of the child trace

Returns:

the newly created child

close

default void close()
            throws Exception

Default implementation which calls save().

Specified by:

close in interface AutoCloseable

Throws:

Exception - if the close failed

save

void save()
   throws Exception

Save this child trace in the backing storage.

Throws:

Exception - if the save failed

profile

void profile(PluginRunProfile profile)

Set the PluginRunProfile at the end of an extraction. This variable will be set the extraction plugin framework when processing a trace has finished.

Parameters:

profile - the profile to set

profile

Optional<PluginRunProfile> profile()

Returns the PluginRunProfile returned by the plugin. This variable will be set the extraction plugin framework when processing a trace has finished.

Returns:

the set profile, empty if no profile was not returned by the plugin