// create a buffer chain holding the outgoing message annotations section
static bool compose_message_annotations(qd_message_pvt_t *msg, qd_buffer_list_t *out)
{
if (!DEQ_IS_EMPTY(msg->ma_to_override) ||
!DEQ_IS_EMPTY(msg->ma_trace) ||
!DEQ_IS_EMPTY(msg->ma_ingress)) {
qd_composed_field_t *out_ma = qd_compose(QD_PERFORMATIVE_MESSAGE_ANNOTATIONS, 0);
qd_compose_start_map(out_ma);
if (!DEQ_IS_EMPTY(msg->ma_to_override)) {
qd_compose_insert_symbol(out_ma, QD_MA_TO);
qd_compose_insert_buffers(out_ma, &msg->ma_to_override);
}
if (!DEQ_IS_EMPTY(msg->ma_trace)) {
qd_compose_insert_symbol(out_ma, QD_MA_TRACE);
qd_compose_insert_buffers(out_ma, &msg->ma_trace);
}
if (!DEQ_IS_EMPTY(msg->ma_ingress)) {
qd_compose_insert_symbol(out_ma, QD_MA_INGRESS);
qd_compose_insert_buffers(out_ma, &msg->ma_ingress);
}
qd_compose_end_map(out_ma);
qd_compose_take_buffers(out_ma, out);
qd_compose_free(out_ma);
return true;
}
return false;
}
static void qd_core_agent_create_handler(qdr_core_t *core,
qd_message_t *msg,
qd_router_entity_type_t entity_type,
qd_router_operation_type_t operation_type,
qd_field_iterator_t *name_iter)
{
//
// Add the Body
//
qd_composed_field_t *out_body = qd_compose(QD_PERFORMATIVE_BODY_AMQP_VALUE, 0);
// Set the callback function.
qdr_manage_handler(core, qd_manage_response_handler);
// Call local function that creates and returns a qd_management_context_t containing the values passed in.
qd_management_context_t *ctx = qd_management_context(qd_message(), msg, out_body, 0, core, operation_type, 0);
qd_field_iterator_t *body_iter = qd_message_field_iterator(msg, QD_FIELD_BODY);
qd_parsed_field_t *in_body = qd_parse(body_iter);
qdr_manage_create(core, ctx, entity_type, name_iter, in_body, out_body);
qd_field_iterator_free(body_iter);
}
void qd_message_compose_1(qd_message_t *msg, const char *to, qd_buffer_list_t *buffers)
{
qd_composed_field_t *field = qd_compose(QD_PERFORMATIVE_HEADER, 0);
qd_message_content_t *content = MSG_CONTENT(msg);
qd_compose_start_list(field);
qd_compose_insert_bool(field, 0); // durable
//qd_compose_insert_null(field); // priority
//qd_compose_insert_null(field); // ttl
//qd_compose_insert_boolean(field, 0); // first-acquirer
//qd_compose_insert_uint(field, 0); // delivery-count
qd_compose_end_list(field);
qd_buffer_list_t out_ma;
if (compose_message_annotations((qd_message_pvt_t*)msg, &out_ma)) {
qd_compose_insert_buffers(field, &out_ma);
}
field = qd_compose(QD_PERFORMATIVE_PROPERTIES, field);
qd_compose_start_list(field);
qd_compose_insert_null(field); // message-id
qd_compose_insert_null(field); // user-id
qd_compose_insert_string(field, to); // to
//qd_compose_insert_null(field); // subject
//qd_compose_insert_null(field); // reply-to
//qd_compose_insert_null(field); // correlation-id
//qd_compose_insert_null(field); // content-type
//qd_compose_insert_null(field); // content-encoding
//qd_compose_insert_timestamp(field, 0); // absolute-expiry-time
//qd_compose_insert_timestamp(field, 0); // creation-time
//qd_compose_insert_null(field); // group-id
//qd_compose_insert_uint(field, 0); // group-sequence
//qd_compose_insert_null(field); // reply-to-group-id
qd_compose_end_list(field);
if (buffers) {
field = qd_compose(QD_PERFORMATIVE_BODY_DATA, field);
qd_compose_insert_binary_buffers(field, buffers);
}
qd_compose_take_buffers(field, &content->buffers);
qd_compose_free(field);
}
static qd_error_t compose_python_message(qd_composed_field_t **field, PyObject *message,
qd_dispatch_t* qd) {
*field = qd_compose(QD_PERFORMATIVE_PROPERTIES, *field);
qd_compose_start_list(*field);
qd_compose_insert_null(*field); // message-id
qd_compose_insert_null(*field); // user-id
qd_py_attr_to_composed(message, "address", *field); QD_ERROR_RET(); // to
qd_compose_insert_null(*field); // subject
qd_compose_insert_null(*field); // reply-to
qd_py_attr_to_composed(message, "correlation_id", *field); QD_ERROR_RET(); // correlation-id
qd_compose_end_list(*field);
*field = qd_compose(QD_PERFORMATIVE_APPLICATION_PROPERTIES, *field); QD_ERROR_RET();
qd_py_attr_to_composed(message, "properties", *field); QD_ERROR_RET();
*field = qd_compose(QD_PERFORMATIVE_BODY_AMQP_VALUE, *field); QD_ERROR_RET();
qd_py_attr_to_composed(message, "body", *field); QD_ERROR_RET();
return qd_error_code();
}
/**
* Sets the error status on a new composed field.
*/
static void qd_set_response_status(const qd_amqp_error_t *error, qd_composed_field_t **field)
{
//
// Insert appropriate success or error
//
*field = qd_compose(QD_PERFORMATIVE_APPLICATION_PROPERTIES, *field);
qd_compose_start_map(*field);
qd_compose_insert_string(*field, status_description);
qd_compose_insert_string(*field, error->description);
qd_compose_insert_string(*field, status_code);
qd_compose_insert_uint(*field, error->status);
qd_compose_end_map(*field);
}
static void qd_core_agent_query_handler(qdr_core_t *core,
qd_router_entity_type_t entity_type,
qd_router_operation_type_t operation_type,
qd_message_t *msg,
int *count,
int *offset)
{
//
// Add the Body.
//
qd_composed_field_t *field = qd_compose(QD_PERFORMATIVE_BODY_AMQP_VALUE, 0);
// Start a map in the body. Look for the end map in the callback function, qd_manage_response_handler.
qd_compose_start_map(field);
//add a "attributeNames" key
qd_compose_insert_string(field, ATTRIBUTE_NAMES);
// Call local function that creates and returns a local qd_management_context_t object containing the values passed in.
qd_management_context_t *ctx = qd_management_context(qd_message(), msg, field, 0, core, operation_type, (*count));
// Grab the attribute names from the incoming message body. The attribute names will be used later on in the response.
qd_parsed_field_t *attribute_names_parsed_field = 0;
qd_field_iterator_t *body_iter = qd_message_field_iterator(msg, QD_FIELD_BODY);
qd_parsed_field_t *body = qd_parse(body_iter);
if (body != 0 && qd_parse_is_map(body)) {
attribute_names_parsed_field = qd_parse_value_by_key(body, ATTRIBUTE_NAMES);
}
// Set the callback function.
qdr_manage_handler(core, qd_manage_response_handler);
ctx->query = qdr_manage_query(core, ctx, entity_type, attribute_names_parsed_field, field);
//Add the attribute names
qdr_query_add_attribute_names(ctx->query); //this adds a list of attribute names like ["attribute1", "attribute2", "attribute3", "attribute4",]
qd_compose_insert_string(field, results); //add a "results" key
qd_compose_start_list(field); //start the list for results
qdr_query_get_first(ctx->query, (*offset));
qd_field_iterator_free(body_iter);
qd_parse_free(body);
}
static void qd_set_properties(qd_message_t *msg,
qd_field_iterator_t **reply_to,
qd_composed_field_t **fld)
{
qd_field_iterator_t *correlation_id = qd_message_field_iterator_typed(msg, QD_FIELD_CORRELATION_ID);
// Grab the reply_to field from the incoming message. This is the address we will send the response to.
*reply_to = qd_message_field_iterator(msg, QD_FIELD_REPLY_TO);
*fld = qd_compose(QD_PERFORMATIVE_PROPERTIES, 0);
qd_compose_start_list(*fld);
qd_compose_insert_null(*fld); // message-id
qd_compose_insert_null(*fld); // user-id
qd_compose_insert_string_iterator(*fld, *reply_to); // to
qd_compose_insert_null(*fld); // subject
qd_compose_insert_null(*fld);
qd_compose_insert_typed_iterator(*fld, correlation_id);
qd_compose_end_list(*fld);
qd_field_iterator_free(correlation_id);
}
static void qd_core_agent_update_handler(qdr_core_t *core,
qd_message_t *msg,
qd_router_entity_type_t entity_type,
qd_router_operation_type_t operation_type,
qd_field_iterator_t *identity_iter,
qd_field_iterator_t *name_iter)
{
qd_composed_field_t *out_body = qd_compose(QD_PERFORMATIVE_BODY_AMQP_VALUE, 0);
// Set the callback function.
qdr_manage_handler(core, qd_manage_response_handler);
qd_management_context_t *ctx = qd_management_context(qd_message(), msg, out_body, 0, core, operation_type, 0);
qd_field_iterator_t *iter = qd_message_field_iterator(msg, QD_FIELD_BODY);
qd_parsed_field_t *in_body= qd_parse(iter);
qd_field_iterator_free(iter);
qdr_manage_update(core, ctx, entity_type, name_iter, identity_iter, in_body, out_body);
}
