xtd::diagnostics::trace_switch Class Reference

Inheritance diagram for xtd::diagnostics::trace_switch:

Definition

Provides a multilevel switch to control tracing and debug output without recompiling your code.

class core_export_ trace_switch : public xtd::diagnostics::switch_object

Inheritance

xtd::object → xtd::diagnostics::switch_object → xtd::diagnostics::trace_switch

Header

#include <xtd/diagnostics/trace_switch>

Namespace

xtd::diagnostics

Library

xtd.core

Remarks

You can use a trace switch to filter out messages based on their importance. The trace_switch class provides the trace_error, trace_warning, trace_info, and trace_verbose properties to test the level of the switch. The level property gets or sets the switch's trace_level.

You can set the level of a trace_switch through the application configuration file and then use the configured trace_switch level in your application. Alternately, you can create a trace_switch in your code and set the level directly to instrument a specific section of code.

Public Constructors
	trace_switch (const xtd::string &display_name, const xtd::string &description)
	Initializes a new instance of the xtd::diagnostics::trace_switch class, using the specified display name and description.
	trace_switch (const xtd::string &display_name, const xtd::string &description, const xtd::string &default_switch_value)
	Initializes a new instance of the xtd::diagnostics::trace_switch class, using the specified display name, description, and default value for the switch.

Public Properties
xtd::diagnostics::trace_level	level () const noexcept
	Gets the trace level that determines the messages the switch allows.
void	level (xtd::diagnostics::trace_level level) noexcept
	Sets the trace level that determines the messages the switch allows.
bool	trace_error () const noexcept
	Gets a value indicating whether the switch allows error-handling messages.
bool	trace_info () const noexcept
	Gets a value indicating whether the switch allows informational messages.
bool	trace_verbose () const noexcept
	Gets a value indicating whether the switch allows all messages.
bool	trace_warning () const noexcept
	Gets a value indicating whether the switch allows warning messages.

Protected Methods
void	on_switch_setting_changed () override
	Invoked when the switch_setting property is changed.
void	on_value_changed () override
	Invoked when the value property is changed.

Additional Inherited Members
using	attribute_collection
	Represents the attributes collection.
const attribute_collection &	attributes () const noexcept
	Gets the custom switch attributes.
attribute_collection &	attributes () noexcept
	Gets the custom switch attributes.
void	attributes (const attribute_collection &attributes) noexcept
	Sets the custom switch attributes.
const xtd::string &	description () const noexcept
	Gets a description of the switch.
const xtd::string &	display_name () const noexcept
	Gets a name used to identify the switch.
const xtd::string &	value () const noexcept
	Gets the value of the switch.
void	value (const xtd::string &value)
	Sets the value of the switch.
bool	equals (const xtd::object &obj) const noexcept override
	Determines whether the specified object is equal to the current object.
bool	equals (const switch_object &other) const noexcept override
	Determines whether the specified object is equal to the current object.
	object ()=default
	Create a new instance of the ultimate base class object.
virtual xtd::size	get_hash_code () const noexcept
	Serves as a hash function for a particular type.
virtual type_object	get_type () const noexcept
	Gets the type of the current instance.
template<class object_t>
xtd::unique_ptr_object< object_t >	memberwise_clone () const
	Creates a shallow copy of the current object.
virtual xtd::string	to_string () const noexcept
	Returns a xtd::string that represents the current object.
virtual bool	equals (const switch_object &) const noexcept=0
	Indicates whether the current object is equal to another object of the same type.
template<class object_a_t, class object_b_t>
static bool	equals (const object_a_t &object_a, const object_b_t &object_b) noexcept
	Determines whether the specified object instances are considered equal.
template<class object_a_t, class object_b_t>
static bool	reference_equals (const object_a_t &object_a, const object_b_t &object_b) noexcept
	Determines whether the specified object instances are the same instance.
	switch_object (const xtd::string &display_name, const xtd::string &description)
	Initializes a new instance of the switch_object class.
int32	switch_setting () const noexcept
	Gets the current setting for this switch.
void	switch_setting (int32 switch_setting)
	Sets the current setting for this switch.
virtual xtd::array< xtd::string >	get_supported_attributes () const noexcept
	Gets the custom attributes supported by the switch.

Constructor & Destructor Documentation

trace_switch() [1/2]

xtd::diagnostics::trace_switch::trace_switch	(	const xtd::string &	display_name,
		const xtd::string &	description )

Initializes a new instance of the xtd::diagnostics::trace_switch class, using the specified display name and description.

Parameters

display_name	The name to display on a user interface.
description	The description of the switch.

Remarks

he xtd::diagnostics::trace_switch class provides the xtd::diagnostics::trace_switch::trace_error, xtd::diagnostics::trace_switch::trace_warning, xtd::diagnostics::trace_switch::trace_info, and xtd::diagnostics::trace_switch::trace_verbose properties to test the Level of the switch. The xtd::diagnostics::trace_switch::level property gets or sets the switch's xtd::diagnostics::trace_level.

Note

To improve performance, you can make xtd::diagnostics::trace_switch members static in your class.

trace_switch() [2/2]

xtd::diagnostics::trace_switch::trace_switch	(	const xtd::string &	display_name,
		const xtd::string &	description,
		const xtd::string &	default_switch_value )

Initializes a new instance of the xtd::diagnostics::trace_switch class, using the specified display name, description, and default value for the switch.

Parameters

display_name	The name to display on a user interface.
description	The description of the switch.
default_switch_value	The default value of the switch.

Remarks

The display_name parameter is used to set the value of the xtd::diagnostics::trace_switch::display_name property, the description parameter is use to set the value of the xtd::diagnostics::trace_switch::description property, and the default_switch_value parameter is saved as a field and used to initialize the xtd::diagnostics::trace_switch::value property on first reference.

Member Function Documentation

level() [1/2]

xtd::diagnostics::trace_level xtd::diagnostics::trace_switch::level ( ) const

noexcept

Gets the trace level that determines the messages the switch allows.

Returns

One of the xtd::diagnostics::trace_level values that specifies the level of messages that are allowed by the switch.

Remarks

Setting this property updates the xtd::diagnostics::trace_switch::trace_error, xtd::diagnostics::trace_switch::trace_warning, xtd::diagnostics::trace_switch::trace_info, and xtd::diagnostics::trace_switch::trace_verbose properties to reflect the new value.

level() [2/2]

void xtd::diagnostics::trace_switch::level ( xtd::diagnostics::trace_level level )

noexcept

Sets the trace level that determines the messages the switch allows.

Parameters

level

One of the xtd::diagnostics::trace_level values that specifies the level of messages that are allowed by the switch.

Remarks

Setting this property updates the xtd::diagnostics::trace_switch::trace_error, xtd::diagnostics::trace_switch::trace_warning, xtd::diagnostics::trace_switch::trace_info, and xtd::diagnostics::trace_switch::trace_verbose properties to reflect the new value.

trace_error()

bool xtd::diagnostics::trace_switch::trace_error ( ) const

noexcept

Gets a value indicating whether the switch allows error-handling messages.

Returns

true if the xtd::diagnostics::trace_switch::level property is set to xtd::diagnostics::trace_level::error, xtd::diagnostics::trace_level::warning, xtd::diagnostics::trace_level::info, or xtd::diagnostics::trace_level::verbose; otherwise, false.

trace_info()

bool xtd::diagnostics::trace_switch::trace_info ( ) const

noexcept

Gets a value indicating whether the switch allows informational messages.

Returns

true if the xtd::diagnostics::trace_switch::level property is set to xtd::diagnostics::trace_level::info, or xtd::diagnostics::trace_level::verbose; otherwise, false.

trace_verbose()

bool xtd::diagnostics::trace_switch::trace_verbose ( ) const

noexcept

Gets a value indicating whether the switch allows all messages.

Returns

true if the xtd::diagnostics::trace_switch::level property is set to xtd::diagnostics::trace_level::verbose; otherwise, false.

trace_warning()

bool xtd::diagnostics::trace_switch::trace_warning ( ) const

noexcept

Gets a value indicating whether the switch allows warning messages.

Returns

true if the xtd::diagnostics::trace_switch::level property is set to xtd::diagnostics::trace_level::warning, xtd::diagnostics::trace_level::info, or xtd::diagnostics::trace_level::verbose; otherwise, false.

on_switch_setting_changed()

void xtd::diagnostics::trace_switch::on_switch_setting_changed ( )

overrideprotectedvirtual

Invoked when the switch_setting property is changed.

Reimplemented from xtd::diagnostics::switch_object.

on_value_changed()

void xtd::diagnostics::trace_switch::on_value_changed ( )

overrideprotectedvirtual

Invoked when the value property is changed.

Remarks

The default implementation parses the new value of the value property to an integer value which it uses to set the switch_setting property.

Not to Inheritors

You should override this method and use a conversion that sets the appropriate switch_setting value for your switch.

Reimplemented from xtd::diagnostics::switch_object.

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The documentation for this class was generated from the following file:

• xtd.core/include/xtd/diagnostics/trace_switch.hpp