wasmcloud_interface_polling/polling.rs
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// This file is @generated by wasmcloud/weld-codegen 0.7.0.
// It is not intended for manual editing.
// namespace: org.wasmcloud.interface.polling
#[allow(unused_imports)]
use async_trait::async_trait;
#[allow(unused_imports)]
use serde::{Deserialize, Serialize};
#[allow(unused_imports)]
use std::{borrow::Borrow, borrow::Cow, io::Write, string::ToString};
#[allow(unused_imports)]
use wasmbus_rpc::{
cbor::*,
common::{
deserialize, message_format, serialize, Context, Message, MessageDispatch, MessageFormat,
SendOpts, Transport,
},
error::{RpcError, RpcResult},
Timestamp,
};
#[allow(dead_code)]
pub const SMITHY_VERSION: &str = "1.0";
#[derive(Clone, Debug, Default, Deserialize, Eq, PartialEq, Serialize)]
pub struct AddPollTargetRequest {
#[serde(rename = "pollInterval")]
#[serde(default, skip_serializing_if = "Option::is_none")]
pub poll_interval: Option<u32>,
#[serde(rename = "targetData")]
#[serde(with = "serde_bytes")]
#[serde(default)]
pub target_data: Vec<u8>,
}
// Encode AddPollTargetRequest as CBOR and append to output stream
#[doc(hidden)]
#[allow(unused_mut)]
pub fn encode_add_poll_target_request<W: wasmbus_rpc::cbor::Write>(
mut e: &mut wasmbus_rpc::cbor::Encoder<W>,
val: &AddPollTargetRequest,
) -> RpcResult<()>
where
<W as wasmbus_rpc::cbor::Write>::Error: std::fmt::Display,
{
e.map(2)?;
if let Some(val) = val.poll_interval.as_ref() {
e.str("pollInterval")?;
e.u32(*val)?;
} else {
e.null()?;
}
e.str("targetData")?;
e.bytes(&val.target_data)?;
Ok(())
}
// Decode AddPollTargetRequest from cbor input stream
#[doc(hidden)]
pub fn decode_add_poll_target_request(
d: &mut wasmbus_rpc::cbor::Decoder<'_>,
) -> Result<AddPollTargetRequest, RpcError> {
let __result = {
let mut poll_interval: Option<Option<u32>> = Some(None);
let mut target_data: Option<Vec<u8>> = None;
let is_array = match d.datatype()? {
wasmbus_rpc::cbor::Type::Array => true,
wasmbus_rpc::cbor::Type::Map => false,
_ => {
return Err(RpcError::Deser(
"decoding struct AddPollTargetRequest, expected array or map".to_string(),
))
}
};
if is_array {
let len = d.fixed_array()?;
for __i in 0..(len as usize) {
match __i {
0 => {
poll_interval = if wasmbus_rpc::cbor::Type::Null == d.datatype()? {
d.skip()?;
Some(None)
} else {
Some(Some(d.u32()?))
}
}
1 => target_data = Some(d.bytes()?.to_vec()),
_ => d.skip()?,
}
}
} else {
let len = d.fixed_map()?;
for __i in 0..(len as usize) {
match d.str()? {
"pollInterval" => {
poll_interval = if wasmbus_rpc::cbor::Type::Null == d.datatype()? {
d.skip()?;
Some(None)
} else {
Some(Some(d.u32()?))
}
}
"targetData" => target_data = Some(d.bytes()?.to_vec()),
_ => d.skip()?,
}
}
}
AddPollTargetRequest {
poll_interval: poll_interval.unwrap(),
target_data: if let Some(__x) = target_data {
__x
} else {
return Err(RpcError::Deser(
"missing field AddPollTargetRequest.target_data (#1)".to_string(),
));
},
}
};
Ok(__result)
}
/// If the request was not successful it will contain an error
#[derive(Clone, Debug, Default, Deserialize, Eq, PartialEq, Serialize)]
pub struct AddPollTargetResponse {
#[serde(default, skip_serializing_if = "Option::is_none")]
pub error: Option<PollingError>,
}
// Encode AddPollTargetResponse as CBOR and append to output stream
#[doc(hidden)]
#[allow(unused_mut)]
pub fn encode_add_poll_target_response<W: wasmbus_rpc::cbor::Write>(
mut e: &mut wasmbus_rpc::cbor::Encoder<W>,
val: &AddPollTargetResponse,
) -> RpcResult<()>
where
<W as wasmbus_rpc::cbor::Write>::Error: std::fmt::Display,
{
e.map(1)?;
if let Some(val) = val.error.as_ref() {
e.str("error")?;
encode_polling_error(e, val)?;
} else {
e.null()?;
}
Ok(())
}
// Decode AddPollTargetResponse from cbor input stream
#[doc(hidden)]
pub fn decode_add_poll_target_response(
d: &mut wasmbus_rpc::cbor::Decoder<'_>,
) -> Result<AddPollTargetResponse, RpcError> {
let __result = {
let mut error: Option<Option<PollingError>> = Some(None);
let is_array = match d.datatype()? {
wasmbus_rpc::cbor::Type::Array => true,
wasmbus_rpc::cbor::Type::Map => false,
_ => {
return Err(RpcError::Deser(
"decoding struct AddPollTargetResponse, expected array or map".to_string(),
))
}
};
if is_array {
let len = d.fixed_array()?;
for __i in 0..(len as usize) {
match __i {
0 => {
error = if wasmbus_rpc::cbor::Type::Null == d.datatype()? {
d.skip()?;
Some(None)
} else {
Some(Some(decode_polling_error(d).map_err(|e| {
format!(
"decoding 'org.wasmcloud.interface.polling#PollingError': {}",
e
)
})?))
}
}
_ => d.skip()?,
}
}
} else {
let len = d.fixed_map()?;
for __i in 0..(len as usize) {
match d.str()? {
"error" => {
error = if wasmbus_rpc::cbor::Type::Null == d.datatype()? {
d.skip()?;
Some(None)
} else {
Some(Some(decode_polling_error(d).map_err(|e| {
format!(
"decoding 'org.wasmcloud.interface.polling#PollingError': {}",
e
)
})?))
}
}
_ => d.skip()?,
}
}
}
AddPollTargetResponse {
error: error.unwrap(),
}
};
Ok(__result)
}
/// A request to manually poll external services/hardware.
///
/// Depending on the provider implementation, leaving `Data` empty may poll all
/// services/hardware, it may perform an entirely different action, or it could
/// return an error.
#[derive(Clone, Debug, Default, Deserialize, Eq, PartialEq, Serialize)]
pub struct PollRequest {
/// Bytes which can be serialised from any type of data structure, depending
/// on the implementation of the provider. For an HTTP based provider it could
/// be a hash map of API endpoints and parameters, for a NATS based provider
/// it could be a list of topics to publish to, or it could simply be a list
/// of Sensor IDs to poll for readings.
///
/// The effect of leaving this empty will depend on the provider implementation.
#[serde(with = "serde_bytes")]
#[serde(default, skip_serializing_if = "Option::is_none")]
pub request_data: Option<Vec<u8>>,
}
// Encode PollRequest as CBOR and append to output stream
#[doc(hidden)]
#[allow(unused_mut)]
pub fn encode_poll_request<W: wasmbus_rpc::cbor::Write>(
mut e: &mut wasmbus_rpc::cbor::Encoder<W>,
val: &PollRequest,
) -> RpcResult<()>
where
<W as wasmbus_rpc::cbor::Write>::Error: std::fmt::Display,
{
e.map(1)?;
if let Some(val) = val.request_data.as_ref() {
e.str("request_data")?;
e.bytes(val)?;
} else {
e.null()?;
}
Ok(())
}
// Decode PollRequest from cbor input stream
#[doc(hidden)]
pub fn decode_poll_request(
d: &mut wasmbus_rpc::cbor::Decoder<'_>,
) -> Result<PollRequest, RpcError> {
let __result = {
let mut request_data: Option<Option<Vec<u8>>> = Some(None);
let is_array = match d.datatype()? {
wasmbus_rpc::cbor::Type::Array => true,
wasmbus_rpc::cbor::Type::Map => false,
_ => {
return Err(RpcError::Deser(
"decoding struct PollRequest, expected array or map".to_string(),
))
}
};
if is_array {
let len = d.fixed_array()?;
for __i in 0..(len as usize) {
match __i {
0 => {
request_data = if wasmbus_rpc::cbor::Type::Null == d.datatype()? {
d.skip()?;
Some(None)
} else {
Some(Some(d.bytes()?.to_vec()))
}
}
_ => d.skip()?,
}
}
} else {
let len = d.fixed_map()?;
for __i in 0..(len as usize) {
match d.str()? {
"request_data" => {
request_data = if wasmbus_rpc::cbor::Type::Null == d.datatype()? {
d.skip()?;
Some(None)
} else {
Some(Some(d.bytes()?.to_vec()))
}
}
_ => d.skip()?,
}
}
}
PollRequest {
request_data: request_data.unwrap(),
}
};
Ok(__result)
}
/// Results from either automatic or manual polling of external services/hardware
#[derive(Clone, Debug, Default, Deserialize, Eq, PartialEq, Serialize)]
pub struct PollResult {
/// Bytes serialised from a data structure suitable for the type of services
/// being polled.
#[serde(with = "serde_bytes")]
#[serde(default, skip_serializing_if = "Option::is_none")]
pub data: Option<Vec<u8>>,
/// If this field is present then there has been an error
#[serde(default, skip_serializing_if = "Option::is_none")]
pub error: Option<PollingError>,
}
// Encode PollResult as CBOR and append to output stream
#[doc(hidden)]
#[allow(unused_mut)]
pub fn encode_poll_result<W: wasmbus_rpc::cbor::Write>(
mut e: &mut wasmbus_rpc::cbor::Encoder<W>,
val: &PollResult,
) -> RpcResult<()>
where
<W as wasmbus_rpc::cbor::Write>::Error: std::fmt::Display,
{
e.map(2)?;
if let Some(val) = val.data.as_ref() {
e.str("data")?;
e.bytes(val)?;
} else {
e.null()?;
}
if let Some(val) = val.error.as_ref() {
e.str("error")?;
encode_polling_error(e, val)?;
} else {
e.null()?;
}
Ok(())
}
// Decode PollResult from cbor input stream
#[doc(hidden)]
pub fn decode_poll_result(d: &mut wasmbus_rpc::cbor::Decoder<'_>) -> Result<PollResult, RpcError> {
let __result = {
let mut data: Option<Option<Vec<u8>>> = Some(None);
let mut error: Option<Option<PollingError>> = Some(None);
let is_array = match d.datatype()? {
wasmbus_rpc::cbor::Type::Array => true,
wasmbus_rpc::cbor::Type::Map => false,
_ => {
return Err(RpcError::Deser(
"decoding struct PollResult, expected array or map".to_string(),
))
}
};
if is_array {
let len = d.fixed_array()?;
for __i in 0..(len as usize) {
match __i {
0 => {
data = if wasmbus_rpc::cbor::Type::Null == d.datatype()? {
d.skip()?;
Some(None)
} else {
Some(Some(d.bytes()?.to_vec()))
}
}
1 => {
error = if wasmbus_rpc::cbor::Type::Null == d.datatype()? {
d.skip()?;
Some(None)
} else {
Some(Some(decode_polling_error(d).map_err(|e| {
format!(
"decoding 'org.wasmcloud.interface.polling#PollingError': {}",
e
)
})?))
}
}
_ => d.skip()?,
}
}
} else {
let len = d.fixed_map()?;
for __i in 0..(len as usize) {
match d.str()? {
"data" => {
data = if wasmbus_rpc::cbor::Type::Null == d.datatype()? {
d.skip()?;
Some(None)
} else {
Some(Some(d.bytes()?.to_vec()))
}
}
"error" => {
error = if wasmbus_rpc::cbor::Type::Null == d.datatype()? {
d.skip()?;
Some(None)
} else {
Some(Some(decode_polling_error(d).map_err(|e| {
format!(
"decoding 'org.wasmcloud.interface.polling#PollingError': {}",
e
)
})?))
}
}
_ => d.skip()?,
}
}
}
PollResult {
data: data.unwrap(),
error: error.unwrap(),
}
};
Ok(__result)
}
/// Contains the type or code for an error along with an optional description.
#[derive(Clone, Debug, Default, Deserialize, Eq, PartialEq, Serialize)]
pub struct PollingError {
#[serde(default, skip_serializing_if = "Option::is_none")]
pub description: Option<String>,
#[serde(rename = "errorType")]
#[serde(default)]
pub error_type: String,
}
// Encode PollingError as CBOR and append to output stream
#[doc(hidden)]
#[allow(unused_mut)]
pub fn encode_polling_error<W: wasmbus_rpc::cbor::Write>(
mut e: &mut wasmbus_rpc::cbor::Encoder<W>,
val: &PollingError,
) -> RpcResult<()>
where
<W as wasmbus_rpc::cbor::Write>::Error: std::fmt::Display,
{
e.map(2)?;
if let Some(val) = val.description.as_ref() {
e.str("description")?;
e.str(val)?;
} else {
e.null()?;
}
e.str("errorType")?;
e.str(&val.error_type)?;
Ok(())
}
// Decode PollingError from cbor input stream
#[doc(hidden)]
pub fn decode_polling_error(
d: &mut wasmbus_rpc::cbor::Decoder<'_>,
) -> Result<PollingError, RpcError> {
let __result = {
let mut description: Option<Option<String>> = Some(None);
let mut error_type: Option<String> = None;
let is_array = match d.datatype()? {
wasmbus_rpc::cbor::Type::Array => true,
wasmbus_rpc::cbor::Type::Map => false,
_ => {
return Err(RpcError::Deser(
"decoding struct PollingError, expected array or map".to_string(),
))
}
};
if is_array {
let len = d.fixed_array()?;
for __i in 0..(len as usize) {
match __i {
0 => {
description = if wasmbus_rpc::cbor::Type::Null == d.datatype()? {
d.skip()?;
Some(None)
} else {
Some(Some(d.str()?.to_string()))
}
}
1 => error_type = Some(d.str()?.to_string()),
_ => d.skip()?,
}
}
} else {
let len = d.fixed_map()?;
for __i in 0..(len as usize) {
match d.str()? {
"description" => {
description = if wasmbus_rpc::cbor::Type::Null == d.datatype()? {
d.skip()?;
Some(None)
} else {
Some(Some(d.str()?.to_string()))
}
}
"errorType" => error_type = Some(d.str()?.to_string()),
_ => d.skip()?,
}
}
}
PollingError {
description: description.unwrap(),
error_type: if let Some(__x) = error_type {
__x
} else {
return Err(RpcError::Deser(
"missing field PollingError.error_type (#1)".to_string(),
));
},
}
};
Ok(__result)
}
#[derive(Clone, Debug, Default, Deserialize, Eq, PartialEq, Serialize)]
pub struct RemovePollTargetRequest {
#[serde(rename = "targetData")]
#[serde(with = "serde_bytes")]
#[serde(default)]
pub target_data: Vec<u8>,
}
// Encode RemovePollTargetRequest as CBOR and append to output stream
#[doc(hidden)]
#[allow(unused_mut)]
pub fn encode_remove_poll_target_request<W: wasmbus_rpc::cbor::Write>(
mut e: &mut wasmbus_rpc::cbor::Encoder<W>,
val: &RemovePollTargetRequest,
) -> RpcResult<()>
where
<W as wasmbus_rpc::cbor::Write>::Error: std::fmt::Display,
{
e.map(1)?;
e.str("targetData")?;
e.bytes(&val.target_data)?;
Ok(())
}
// Decode RemovePollTargetRequest from cbor input stream
#[doc(hidden)]
pub fn decode_remove_poll_target_request(
d: &mut wasmbus_rpc::cbor::Decoder<'_>,
) -> Result<RemovePollTargetRequest, RpcError> {
let __result = {
let mut target_data: Option<Vec<u8>> = None;
let is_array = match d.datatype()? {
wasmbus_rpc::cbor::Type::Array => true,
wasmbus_rpc::cbor::Type::Map => false,
_ => {
return Err(RpcError::Deser(
"decoding struct RemovePollTargetRequest, expected array or map".to_string(),
))
}
};
if is_array {
let len = d.fixed_array()?;
for __i in 0..(len as usize) {
match __i {
0 => target_data = Some(d.bytes()?.to_vec()),
_ => d.skip()?,
}
}
} else {
let len = d.fixed_map()?;
for __i in 0..(len as usize) {
match d.str()? {
"targetData" => target_data = Some(d.bytes()?.to_vec()),
_ => d.skip()?,
}
}
}
RemovePollTargetRequest {
target_data: if let Some(__x) = target_data {
__x
} else {
return Err(RpcError::Deser(
"missing field RemovePollTargetRequest.target_data (#0)".to_string(),
));
},
}
};
Ok(__result)
}
/// If the request was not successful it will contain an error
#[derive(Clone, Debug, Default, Deserialize, Eq, PartialEq, Serialize)]
pub struct RemovePollTargetResponse {
#[serde(default, skip_serializing_if = "Option::is_none")]
pub error: Option<PollingError>,
}
// Encode RemovePollTargetResponse as CBOR and append to output stream
#[doc(hidden)]
#[allow(unused_mut)]
pub fn encode_remove_poll_target_response<W: wasmbus_rpc::cbor::Write>(
mut e: &mut wasmbus_rpc::cbor::Encoder<W>,
val: &RemovePollTargetResponse,
) -> RpcResult<()>
where
<W as wasmbus_rpc::cbor::Write>::Error: std::fmt::Display,
{
e.map(1)?;
if let Some(val) = val.error.as_ref() {
e.str("error")?;
encode_polling_error(e, val)?;
} else {
e.null()?;
}
Ok(())
}
// Decode RemovePollTargetResponse from cbor input stream
#[doc(hidden)]
pub fn decode_remove_poll_target_response(
d: &mut wasmbus_rpc::cbor::Decoder<'_>,
) -> Result<RemovePollTargetResponse, RpcError> {
let __result = {
let mut error: Option<Option<PollingError>> = Some(None);
let is_array = match d.datatype()? {
wasmbus_rpc::cbor::Type::Array => true,
wasmbus_rpc::cbor::Type::Map => false,
_ => {
return Err(RpcError::Deser(
"decoding struct RemovePollTargetResponse, expected array or map".to_string(),
))
}
};
if is_array {
let len = d.fixed_array()?;
for __i in 0..(len as usize) {
match __i {
0 => {
error = if wasmbus_rpc::cbor::Type::Null == d.datatype()? {
d.skip()?;
Some(None)
} else {
Some(Some(decode_polling_error(d).map_err(|e| {
format!(
"decoding 'org.wasmcloud.interface.polling#PollingError': {}",
e
)
})?))
}
}
_ => d.skip()?,
}
}
} else {
let len = d.fixed_map()?;
for __i in 0..(len as usize) {
match d.str()? {
"error" => {
error = if wasmbus_rpc::cbor::Type::Null == d.datatype()? {
d.skip()?;
Some(None)
} else {
Some(Some(decode_polling_error(d).map_err(|e| {
format!(
"decoding 'org.wasmcloud.interface.polling#PollingError': {}",
e
)
})?))
}
}
_ => d.skip()?,
}
}
}
RemovePollTargetResponse {
error: error.unwrap(),
}
};
Ok(__result)
}
/// The PollSubscriber interface described an actor interface that receives the
/// results from automatic polling of external services/hardware at a specified
/// interval.
/// wasmbus.contractId: wasmcloud:polling
/// wasmbus.actorReceive
#[async_trait]
pub trait PollSubscriber {
/// returns the capability contract id for this interface
fn contract_id() -> &'static str {
"wasmcloud:polling"
}
/// Receive results from the latest automatic poll, or simply perform some
/// functionality without any external input
async fn poll_rx(&self, ctx: &Context, arg: &PollResult) -> RpcResult<()>;
}
/// PollSubscriberReceiver receives messages defined in the PollSubscriber service trait
/// The PollSubscriber interface described an actor interface that receives the
/// results from automatic polling of external services/hardware at a specified
/// interval.
#[doc(hidden)]
#[async_trait]
pub trait PollSubscriberReceiver: MessageDispatch + PollSubscriber {
async fn dispatch(&self, ctx: &Context, message: Message<'_>) -> Result<Vec<u8>, RpcError> {
match message.method {
"PollRx" => {
let value: PollResult = wasmbus_rpc::common::deserialize(&message.arg)
.map_err(|e| RpcError::Deser(format!("'PollResult': {}", e)))?;
let _resp = PollSubscriber::poll_rx(self, ctx, &value).await?;
let buf = Vec::new();
Ok(buf)
}
_ => Err(RpcError::MethodNotHandled(format!(
"PollSubscriber::{}",
message.method
))),
}
}
}
/// PollSubscriberSender sends messages to a PollSubscriber service
/// The PollSubscriber interface described an actor interface that receives the
/// results from automatic polling of external services/hardware at a specified
/// interval.
/// client for sending PollSubscriber messages
#[derive(Clone, Debug)]
pub struct PollSubscriberSender<T: Transport> {
transport: T,
}
impl<T: Transport> PollSubscriberSender<T> {
/// Constructs a PollSubscriberSender with the specified transport
pub fn via(transport: T) -> Self {
Self { transport }
}
pub fn set_timeout(&self, interval: std::time::Duration) {
self.transport.set_timeout(interval);
}
}
#[cfg(not(target_arch = "wasm32"))]
impl<'send> PollSubscriberSender<wasmbus_rpc::provider::ProviderTransport<'send>> {
/// Constructs a Sender using an actor's LinkDefinition,
/// Uses the provider's HostBridge for rpc
pub fn for_actor(ld: &'send wasmbus_rpc::core::LinkDefinition) -> Self {
Self {
transport: wasmbus_rpc::provider::ProviderTransport::new(ld, None),
}
}
}
#[cfg(target_arch = "wasm32")]
impl PollSubscriberSender<wasmbus_rpc::actor::prelude::WasmHost> {
/// Constructs a client for actor-to-actor messaging
/// using the recipient actor's public key
pub fn to_actor(actor_id: &str) -> Self {
let transport =
wasmbus_rpc::actor::prelude::WasmHost::to_actor(actor_id.to_string()).unwrap();
Self { transport }
}
}
#[async_trait]
impl<T: Transport + std::marker::Sync + std::marker::Send> PollSubscriber
for PollSubscriberSender<T>
{
#[allow(unused)]
/// Receive results from the latest automatic poll, or simply perform some
/// functionality without any external input
async fn poll_rx(&self, ctx: &Context, arg: &PollResult) -> RpcResult<()> {
let buf = wasmbus_rpc::common::serialize(arg)?;
let resp = self
.transport
.send(
ctx,
Message {
method: "PollSubscriber.PollRx",
arg: Cow::Borrowed(&buf),
},
None,
)
.await?;
Ok(())
}
}
/// The Polling interface describes a service that automatically polls external
/// services/hardware at a set interval, or a service which simply ensures an
/// actor performs certain functionality at a set interval without any external
/// input from the Polling service itself.
///
/// The AddPollTarget and RemovePollTarget operations may not be necessary for
/// all implementations; some implementations might monitor heartbeats from sources
/// configured in the link definition rather than manually adding or removing
/// targets.
/// wasmbus.contractId: wasmcloud:polling
/// wasmbus.providerReceive
#[async_trait]
pub trait Polling {
/// returns the capability contract id for this interface
fn contract_id() -> &'static str {
"wasmcloud:polling"
}
/// Manually request the provider to poll any external services/hardware
async fn poll_tx(&self, ctx: &Context, arg: &PollRequest) -> RpcResult<PollResult>;
/// Add a new target to be regularly polled
async fn add_poll_target(
&self,
ctx: &Context,
arg: &AddPollTargetRequest,
) -> RpcResult<AddPollTargetResponse>;
/// Remove a target that's currently being polled so it will no longer be polled
async fn remove_poll_target(
&self,
ctx: &Context,
arg: &RemovePollTargetRequest,
) -> RpcResult<RemovePollTargetResponse>;
}
/// PollingReceiver receives messages defined in the Polling service trait
/// The Polling interface describes a service that automatically polls external
/// services/hardware at a set interval, or a service which simply ensures an
/// actor performs certain functionality at a set interval without any external
/// input from the Polling service itself.
///
/// The AddPollTarget and RemovePollTarget operations may not be necessary for
/// all implementations; some implementations might monitor heartbeats from sources
/// configured in the link definition rather than manually adding or removing
/// targets.
#[doc(hidden)]
#[async_trait]
pub trait PollingReceiver: MessageDispatch + Polling {
async fn dispatch(&self, ctx: &Context, message: Message<'_>) -> Result<Vec<u8>, RpcError> {
match message.method {
"PollTx" => {
let value: PollRequest = wasmbus_rpc::common::deserialize(&message.arg)
.map_err(|e| RpcError::Deser(format!("'PollRequest': {}", e)))?;
let resp = Polling::poll_tx(self, ctx, &value).await?;
let buf = wasmbus_rpc::common::serialize(&resp)?;
Ok(buf)
}
"AddPollTarget" => {
let value: AddPollTargetRequest = wasmbus_rpc::common::deserialize(&message.arg)
.map_err(|e| RpcError::Deser(format!("'AddPollTargetRequest': {}", e)))?;
let resp = Polling::add_poll_target(self, ctx, &value).await?;
let buf = wasmbus_rpc::common::serialize(&resp)?;
Ok(buf)
}
"RemovePollTarget" => {
let value: RemovePollTargetRequest = wasmbus_rpc::common::deserialize(&message.arg)
.map_err(|e| RpcError::Deser(format!("'RemovePollTargetRequest': {}", e)))?;
let resp = Polling::remove_poll_target(self, ctx, &value).await?;
let buf = wasmbus_rpc::common::serialize(&resp)?;
Ok(buf)
}
_ => Err(RpcError::MethodNotHandled(format!(
"Polling::{}",
message.method
))),
}
}
}
/// PollingSender sends messages to a Polling service
/// The Polling interface describes a service that automatically polls external
/// services/hardware at a set interval, or a service which simply ensures an
/// actor performs certain functionality at a set interval without any external
/// input from the Polling service itself.
///
/// The AddPollTarget and RemovePollTarget operations may not be necessary for
/// all implementations; some implementations might monitor heartbeats from sources
/// configured in the link definition rather than manually adding or removing
/// targets.
/// client for sending Polling messages
#[derive(Clone, Debug)]
pub struct PollingSender<T: Transport> {
transport: T,
}
impl<T: Transport> PollingSender<T> {
/// Constructs a PollingSender with the specified transport
pub fn via(transport: T) -> Self {
Self { transport }
}
pub fn set_timeout(&self, interval: std::time::Duration) {
self.transport.set_timeout(interval);
}
}
#[cfg(target_arch = "wasm32")]
impl PollingSender<wasmbus_rpc::actor::prelude::WasmHost> {
/// Constructs a client for sending to a Polling provider
/// implementing the 'wasmcloud:polling' capability contract, with the "default" link
pub fn new() -> Self {
let transport =
wasmbus_rpc::actor::prelude::WasmHost::to_provider("wasmcloud:polling", "default")
.unwrap();
Self { transport }
}
/// Constructs a client for sending to a Polling provider
/// implementing the 'wasmcloud:polling' capability contract, with the specified link name
pub fn new_with_link(link_name: &str) -> wasmbus_rpc::error::RpcResult<Self> {
let transport =
wasmbus_rpc::actor::prelude::WasmHost::to_provider("wasmcloud:polling", link_name)?;
Ok(Self { transport })
}
}
#[async_trait]
impl<T: Transport + std::marker::Sync + std::marker::Send> Polling for PollingSender<T> {
#[allow(unused)]
/// Manually request the provider to poll any external services/hardware
async fn poll_tx(&self, ctx: &Context, arg: &PollRequest) -> RpcResult<PollResult> {
let buf = wasmbus_rpc::common::serialize(arg)?;
let resp = self
.transport
.send(
ctx,
Message {
method: "Polling.PollTx",
arg: Cow::Borrowed(&buf),
},
None,
)
.await?;
let value: PollResult = wasmbus_rpc::common::deserialize(&resp)
.map_err(|e| RpcError::Deser(format!("'{}': PollResult", e)))?;
Ok(value)
}
#[allow(unused)]
/// Add a new target to be regularly polled
async fn add_poll_target(
&self,
ctx: &Context,
arg: &AddPollTargetRequest,
) -> RpcResult<AddPollTargetResponse> {
let buf = wasmbus_rpc::common::serialize(arg)?;
let resp = self
.transport
.send(
ctx,
Message {
method: "Polling.AddPollTarget",
arg: Cow::Borrowed(&buf),
},
None,
)
.await?;
let value: AddPollTargetResponse = wasmbus_rpc::common::deserialize(&resp)
.map_err(|e| RpcError::Deser(format!("'{}': AddPollTargetResponse", e)))?;
Ok(value)
}
#[allow(unused)]
/// Remove a target that's currently being polled so it will no longer be polled
async fn remove_poll_target(
&self,
ctx: &Context,
arg: &RemovePollTargetRequest,
) -> RpcResult<RemovePollTargetResponse> {
let buf = wasmbus_rpc::common::serialize(arg)?;
let resp = self
.transport
.send(
ctx,
Message {
method: "Polling.RemovePollTarget",
arg: Cow::Borrowed(&buf),
},
None,
)
.await?;
let value: RemovePollTargetResponse = wasmbus_rpc::common::deserialize(&resp)
.map_err(|e| RpcError::Deser(format!("'{}': RemovePollTargetResponse", e)))?;
Ok(value)
}
}