Represents HTTP response with JSON content. More...

#include <response_json.h>

Inheritance diagram for isc::http::HttpResponseJson:

Public Member Functions
	HttpResponseJson ()
	Constructor for the inbound HTTP response.

	HttpResponseJson (const HttpVersion &version, const HttpStatusCode &status_code, const CallSetGenericBody &generic_body=CallSetGenericBody::yes())
	Constructor for the outbound HTTP response.

virtual void	finalize ()
	Completes creation of the HTTP response.

data::ConstElementPtr	getBodyAsJson () const
	Retrieves JSON body.

data::ConstElementPtr	getJsonElement (const std::string &element_name) const
	Retrieves a single JSON element.

virtual void	reset ()
	Reset the state of the object.

void	setBodyAsJson (const data::ConstElementPtr &json_body)
	Generates JSON content from the data structures represented as data::ConstElementPtr.

Public Member Functions inherited from isc::http::HttpResponse
	HttpResponse ()
	Constructor for the inbound HTTP response.

	HttpResponse (const HttpVersion &version, const HttpStatusCode &status_code, const CallSetGenericBody &generic_body=CallSetGenericBody::yes())
	Constructor for outbound HTTP response.

const HttpResponseContextPtr &	context () const
	Returns pointer to the HttpResponseContext.

virtual void	create ()
	Commits information held in the context into the response.

virtual std::string	getBody () const
	Returns HTTP response body as string.

virtual std::string	getDateHeaderValue () const
	Returns current time formatted as required by RFC 1123.

data::ConstElementPtr	getJsonElement (const std::string &element_name) const
	Retrieves a single JSON element.

HttpStatusCode	getStatusCode () const
	Returns HTTP status code.

std::string	getStatusPhrase () const
	Returns HTTP status phrase.

std::string	toBriefString () const
	Returns HTTP version and HTTP status as a string.

virtual std::string	toString () const
	Returns HTTP response as string.

Public Member Functions inherited from isc::http::HttpMessage
	HttpMessage (const Direction &direction)
	Constructor.

virtual	~HttpMessage ()
	Destructor.

Direction	getDirection () const
	Returns HTTP message direction.

HttpHeaderPtr	getHeader (const std::string &header_name) const
	Returns object encapsulating HTTP header.

std::string	getHeaderValue (const std::string &header_name) const
	Returns a value of the specified HTTP header.

uint64_t	getHeaderValueAsUint64 (const std::string &header_name) const
	Returns a value of the specified HTTP header as number.

HttpVersion	getHttpVersion () const
	Returns HTTP version number (major and minor).

bool	isFinalized () const
	Checks if the message has been successfully finalized.

void	requireHeader (const std::string &header_name)
	Specifies a required HTTP header for the HTTP message.

void	requireHeaderValue (const std::string &header_name, const std::string &header_value)
	Specifies a required value of a header in the message.

void	requireHttpVersion (const HttpVersion &version)
	Specifies HTTP version allowed.

bool	requiresBody () const
	Checks if the body is required for the HTTP message.

void	setDirection (const Direction &direction)
	Sets direction for the HTTP message.

Protected Member Functions
void	parseBodyAsJson ()
	Interprets body as JSON, which can be later retrieved using data element objects.

Protected Member Functions inherited from isc::http::HttpMessage
void	checkCreated () const
	Checks if the create was called.

void	checkFinalized () const
	Checks if the finalize was called.

template<typename T >
bool	inRequiredSet (const T &element, const std::set< T > &element_set) const
	Checks if the set is empty or the specified element belongs to this set.

Protected Attributes
data::ConstElementPtr	json_
	Pointer to the parsed JSON body.

Protected Attributes inherited from isc::http::HttpResponse
HttpResponseContextPtr	context_
	Pointer to the HttpResponseContext holding parsed data.

Protected Attributes inherited from isc::http::HttpMessage
bool	created_
	Flag indicating whether create was called.

Direction	direction_
	Message direction (inbound or outbound).

bool	finalized_
	Flag indicating whether finalize was called.

HttpHeaderMap	headers_
	Parsed HTTP headers.

HttpVersion	http_version_
	HTTP version numbers.

HttpHeaderMap	required_headers_
	Map holding required HTTP headers.

std::set< HttpVersion >	required_versions_
	Set of required HTTP versions.

Additional Inherited Members
Public Types inherited from isc::http::HttpMessage
enum	Direction { INBOUND , OUTBOUND }
	Specifies the direction of the HTTP message. More...

Static Public Member Functions inherited from isc::http::HttpResponse
static bool	isClientError (const HttpStatusCode &status_code)
	Checks if the status code indicates client error.

static bool	isServerError (const HttpStatusCode &status_code)
	Checks if the status code indicates server error.

static uint16_t	statusCodeToNumber (const HttpStatusCode &status_code)
	Convenience method converting status code to numeric value.

static std::string	statusCodeToString (const HttpStatusCode &status_code)
	Converts status code to string.

Protected Types inherited from isc::http::HttpMessage
typedef std::map< std::string, HttpHeaderPtr >	HttpHeaderMap
	Map of HTTP headers indexed by lower case header names.

Detailed Description

Represents HTTP response with JSON content.

This is a specialization of the HttpResponse class which includes "Content-Type" equal to "application/json". It also provides methods to create JSON content within HTTP responses.

Definition at line 34 of file response_json.h.

Constructor & Destructor Documentation

◆ HttpResponseJson() [1/2]

isc::http::HttpResponseJson::HttpResponseJson ( )

explicit

Constructor for the inbound HTTP response.

Definition at line 17 of file response_json.cc.

References isc::http::HttpResponse::context().

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◆ HttpResponseJson() [2/2]

isc::http::HttpResponseJson::HttpResponseJson	(	const HttpVersion &	version,
		const HttpStatusCode &	status_code,
		const CallSetGenericBody &	generic_body = CallSetGenericBody::yes() )

explicit

Constructor for the outbound HTTP response.

Parameters

version	HTTP version.
status_code	HTTP status code.
generic_body	Indicates if the constructor should call `setGenericBody` to create a generic content for the given status code. This should be set to "no" when the constructor is called by the derived class which provides its own implementation of the `setGenericBody` method.

Definition at line 23 of file response_json.cc.

References isc::http::HttpResponse::context().

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Member Function Documentation

◆ finalize()

void isc::http::HttpResponseJson::finalize ( )

virtual

Completes creation of the HTTP response.

This method marks the response as finalized. The JSON structure is created and can be used to retrieve the parsed data. If this is the outbound message, it can be transmitted over the wire as the body for the message is now committed.

Reimplemented from isc::http::HttpResponse.

Definition at line 55 of file response_json.cc.

References isc::http::HttpResponse::create(), isc::http::HttpMessage::created_, isc::http::HttpMessage::finalized_, and parseBodyAsJson().

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◆ getBodyAsJson()

ConstElementPtr isc::http::HttpResponseJson::getBodyAsJson ( ) const

Retrieves JSON body.

Returns: Pointer to the root element of the JSON structure.

Exceptions

HttpRequestJsonError if an error occurred.

Definition at line 72 of file response_json.cc.

References isc::http::HttpMessage::checkFinalized(), and json_.

Referenced by getJsonElement().

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◆ getJsonElement()

ConstElementPtr isc::http::HttpResponseJson::getJsonElement ( const std::string & element_name ) const

Retrieves a single JSON element.

The element must be at top level of the JSON structure.

Parameters

element_name Element name.

Returns: Pointer to the specified element or NULL if such element doesn't exist.

Exceptions

HttpRequestJsonError if an error occurred.

Definition at line 90 of file response_json.cc.

References getBodyAsJson(), isc_throw, and isc::Exception::what().

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◆ parseBodyAsJson()

void isc::http::HttpResponseJson::parseBodyAsJson ( )

protected

Interprets body as JSON, which can be later retrieved using data element objects.

Definition at line 109 of file response_json.cc.

References isc::http::HttpResponse::context_, isc::data::Element::fromJSON(), isc_throw, json_, and isc::Exception::what().

Referenced by finalize().

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◆ reset()

void isc::http::HttpResponseJson::reset ( )

virtual

Reset the state of the object.

Reimplemented from isc::http::HttpResponse.

Definition at line 66 of file response_json.cc.

References json_, and isc::http::HttpResponse::reset().

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◆ setBodyAsJson()

void isc::http::HttpResponseJson::setBodyAsJson ( const data::ConstElementPtr & json_body )

Generates JSON content from the data structures represented as data::ConstElementPtr.

Parameters

json_body A data structure representing JSON content.

Definition at line 78 of file response_json.cc.

References isc::http::HttpResponse::context(), and json_.

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Member Data Documentation

◆ json_

data::ConstElementPtr isc::http::HttpResponseJson::json_

protected

Pointer to the parsed JSON body.

Definition at line 108 of file response_json.h.

Referenced by getBodyAsJson(), parseBodyAsJson(), reset(), and setBodyAsJson().

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

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ HttpResponseJson() [1/2]

◆ HttpResponseJson() [2/2]

Member Function Documentation

◆ finalize()

◆ getBodyAsJson()

◆ getJsonElement()

◆ parseBodyAsJson()

◆ reset()

◆ setBodyAsJson()

Member Data Documentation

◆ json_