Package org.eclipse.hono.util

Class MapBasedExecutionContext

java.lang.Object

org.eclipse.hono.util.MapBasedExecutionContext

All Implemented Interfaces:

ExecutionContext

public class MapBasedExecutionContext
extends Object
implements ExecutionContext

An execution context that stores properties in a Map.

Constructor Summary

Constructors

Constructor	Description
MapBasedExecutionContext()

Method Summary

Modifier and Type	Method	Description
Map<String,Object>	asMap()	Gets the properties stored in this context.
static ExecutionContext	empty()	Creates an empty execution context.
<T> T	get(String key)	Gets the value for a key.
<T> T	get(String key, T defaultValue)	Gets the value for a key.
io.opentracing.SpanContext	getTracingContext()	Gets the OpenTracing context that is used to track the processing of this context.
static ExecutionContext	of(Map<String,Object> props)	Creates an execution context for given set of properties.
void	put(String key, Object value)	Sets a value for a key.
void	setTracingContext(io.opentracing.SpanContext spanContext)	Sets the OpenTracing context to use for tracking the processing of this context.

Methods inherited from class java.lang.Object

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

Constructor Detail

MapBasedExecutionContext

public MapBasedExecutionContext()

Method Detail

empty

public static ExecutionContext empty()

Creates an empty execution context.

Returns:

The new context.

of

public static ExecutionContext of(Map<String,Object> props)

Creates an execution context for given set of properties.

Parameters:

props - The properties to add to the new context.

Returns:

The new context.

get

public final <T> T get(String key)

Description copied from interface: ExecutionContext

Gets the value for a key.

Specified by:

get in interface ExecutionContext

Type Parameters:

T - The type of the value.

Parameters:

key - The key to get the value for.

Returns:

The value or null if the key is unknown.

get

public final <T> T get(String key,
                       T defaultValue)

Description copied from interface: ExecutionContext

Gets the value for a key.

Specified by:

get in interface ExecutionContext

Type Parameters:

T - The type of the value.

Parameters:

key - The key to get the value for.

defaultValue - The value to return if the key is unknown.

Returns:

The value.

put

public final void put(String key,
                      Object value)

Description copied from interface: ExecutionContext

Sets a value for a key.

Specified by:

put in interface ExecutionContext

Parameters:

key - The key.

value - The value.

getTracingContext

public io.opentracing.SpanContext getTracingContext()

Description copied from interface: ExecutionContext

Gets the OpenTracing context that is used to track the processing of this context.

Specified by:

getTracingContext in interface ExecutionContext

Returns:

The context or null if no tracing context is set.

setTracingContext

public void setTracingContext(io.opentracing.SpanContext spanContext)

Description copied from interface: ExecutionContext

Sets the OpenTracing context to use for tracking the processing of this context.

Specified by:

setTracingContext in interface ExecutionContext

Parameters:

spanContext - The context.

asMap

public final Map<String,Object> asMap()

Gets the properties stored in this context.

Returns:

An unmodifiable view on this context's properties.