Bot 與使用者之間的交談通常涉及詢問(提示)使用者取得資訊、剖析使用者的回應,然後針對該資訊採取行動。 您的 Bot 應該追蹤交談的內容,以便管理其行為,並記住先前問題的解答。 Bot 的狀態 是其追蹤以適當回應傳入訊息的資訊。
您可以使用 Bot 的訊息回合處理程式加上使用者和交談狀態屬性來管理交談流程和輸入集合。 在您的 Bot 中,您將記錄在訊息回合處理程式的每個反覆項目期間收到的狀態屬性資訊。
在啟動時建立使用者和交談狀態物件,並在 Bot 建構函式中透過相依性插入加以取用。
Startup.cs
// Create the Bot Adapter with error handling enabled.
services.AddSingleton<IBotFrameworkHttpAdapter, AdapterWithErrorHandler>();
// Create the storage we'll be using for User and Conversation state. (Memory is great for testing purposes.)
services.AddSingleton<IStorage, MemoryStorage>();
// Create the User state.
services.AddSingleton<UserState>();
// Create the Conversation state.
services.AddSingleton<ConversationState>();
Bots/CustomPromptBot.cs
private readonly BotState _userState;
private readonly BotState _conversationState;
public CustomPromptBot(ConversationState conversationState, UserState userState)
{
_conversationState = conversationState;
_userState = userState;
}
在 index.js 中建立使用者和交談狀態物件,並在 Bot 建構函式中取用它們。
index.js
// Catch-all for errors.
adapter.onTurnError = async (context, error) => {
// This check writes out errors to console log .vs. app insights.
// NOTE: In production environment, you should consider logging this to Azure
bots/customPromptBot.js
class CustomPromptBot extends ActivityHandler {
constructor(conversationState, userState) {
super();
// The state management objects for the conversation and user.
this.conversationState = conversationState;
this.userState = userState;
使用 Spring 容器所提供的 ConversationState 和 UserState 實例,在 getBot 方法中建構 CustomPromptBot。 CustomPromptBot 的建構函式會儲存啟動期間所提供 ConversationState 和 UserState 的參考。
Application.java
@Bean
public Bot getBot(
ConversationState conversationState,
UserState userState
) {
return new CustomPromptBot(conversationState, userState);
}
CustomPromptBot.java
private final BotState userState;
private final BotState conversationState;
public CustomPromptBot(ConversationState conversationState, UserState userState) {
this.conversationState = conversationState;
this.userState = userState;
在 app.py 中建立使用者和交談狀態物件,並在 Bot 建構函式中取用它們。
app.py
CONVERSATION_STATE = ConversationState(MEMORY)
# Create Bot
BOT = CustomPromptBot(CONVERSATION_STATE, USER_STATE)
# Listen for incoming requests on /api/messages.
bots/custom_prompt_bot.py
class CustomPromptBot(ActivityHandler):
def __init__(self, conversation_state: ConversationState, user_state: UserState):
if conversation_state is None:
raise TypeError(
"[CustomPromptBot]: Missing parameter. conversation_state is required but None was given"
)
if user_state is None:
raise TypeError(
"[CustomPromptBot]: Missing parameter. user_state is required but None was given"
)
self.conversation_state = conversation_state
self.user_state = user_state
建立使用者配置檔和交談流程屬性的屬性存取子,然後呼叫 GetAsync
以從狀態擷取屬性值。
Bots/CustomPromptBot.cs
protected override async Task OnMessageActivityAsync(ITurnContext<IMessageActivity> turnContext, CancellationToken cancellationToken)
{
var conversationStateAccessors = _conversationState.CreateProperty<ConversationFlow>(nameof(ConversationFlow));
var flow = await conversationStateAccessors.GetAsync(turnContext, () => new ConversationFlow(), cancellationToken);
var userStateAccessors = _userState.CreateProperty<UserProfile>(nameof(UserProfile));
var profile = await userStateAccessors.GetAsync(turnContext, () => new UserProfile(), cancellationToken);
在回合結束之前,呼叫 SaveChangesAsync
以寫入記憶體的任何狀態變更。
await _conversationState.SaveChangesAsync(turnContext, false, cancellationToken);
await _userState.SaveChangesAsync(turnContext, false, cancellationToken);
}
建立使用者配置檔和交談流程屬性的屬性存取子,然後呼叫 get
以從狀態擷取屬性值。
bots/customPromptBot.js
this.onMessage(async (turnContext, next) => {
const flow = await this.conversationFlow.get(turnContext, { lastQuestionAsked: question.none });
const profile = await this.userProfile.get(turnContext, {});
在回合結束之前,呼叫 saveChanges
以寫入記憶體的任何狀態變更。
/**
* Override the ActivityHandler.run() method to save state changes after the bot logic completes.
*/
async run(context) {
await super.run(context);
// Save any state changes. The load happened during the execution of the Dialog.
await this.conversationState.saveChanges(context, false);
await this.userState.saveChanges(context, false);
}
建立使用者配置檔和交談流程屬性的屬性存取子,然後呼叫 get
以從狀態擷取屬性值。
CustomPromptBot.java
@Override
protected CompletableFuture<Void> onMessageActivity(TurnContext turnContext) {
StatePropertyAccessor<ConversationFlow> conversationStateAccessors =
conversationState.createProperty("ConversationFlow");
StatePropertyAccessor<UserProfile> userStateAccessors = userState.createProperty("UserProfile");
return userStateAccessors.get(turnContext, () -> new UserProfile()).thenCompose(profile -> {
return conversationStateAccessors.get(turnContext, () -> new ConversationFlow()).thenCompose(flow -> {
return fillOutUserProfile(flow, profile, turnContext);
});
在回合結束之前,呼叫 saveChanges
以寫入記憶體的任何狀態變更。
})
.thenCompose(result -> conversationState.saveChanges(turnContext))
.thenCompose(result -> userState.saveChanges(turnContext));
在建構函式中,您會建立狀態屬性存取子,併為對話設定狀態管理物件(上面建立)。
bots/custom_prompt_bot.py
async def on_message_activity(self, turn_context: TurnContext):
# Get the state properties from the turn context.
profile = await self.profile_accessor.get(turn_context, UserProfile)
flow = await self.flow_accessor.get(turn_context, ConversationFlow)
在回合結束之前,呼叫 SaveChangesAsync
以寫入記憶體的任何狀態變更。
# Save changes to UserState and ConversationState
await self.conversation_state.save_changes(turn_context)
await self.user_state.save_changes(turn_context)
Bots/CustomPromptBot.cs
protected override async Task OnMessageActivityAsync(ITurnContext<IMessageActivity> turnContext, CancellationToken cancellationToken)
{
var conversationStateAccessors = _conversationState.CreateProperty<ConversationFlow>(nameof(ConversationFlow));
var flow = await conversationStateAccessors.GetAsync(turnContext, () => new ConversationFlow(), cancellationToken);
var userStateAccessors = _userState.CreateProperty<UserProfile>(nameof(UserProfile));
var profile = await userStateAccessors.GetAsync(turnContext, () => new UserProfile(), cancellationToken);
await FillOutUserProfileAsync(flow, profile, turnContext, cancellationToken);
// Save changes.
await _conversationState.SaveChangesAsync(turnContext, false, cancellationToken);
await _userState.SaveChangesAsync(turnContext, false, cancellationToken);
}
bots/customPromptBot.js
this.onMessage(async (turnContext, next) => {
const flow = await this.conversationFlow.get(turnContext, { lastQuestionAsked: question.none });
const profile = await this.userProfile.get(turnContext, {});
await CustomPromptBot.fillOutUserProfile(flow, profile, turnContext);
// By calling next() you ensure that the next BotHandler is run.
await next();
});
CustomPromptBot.java
@Override
protected CompletableFuture<Void> onMessageActivity(TurnContext turnContext) {
StatePropertyAccessor<ConversationFlow> conversationStateAccessors =
conversationState.createProperty("ConversationFlow");
StatePropertyAccessor<UserProfile> userStateAccessors = userState.createProperty("UserProfile");
return userStateAccessors.get(turnContext, () -> new UserProfile()).thenCompose(profile -> {
return conversationStateAccessors.get(turnContext, () -> new ConversationFlow()).thenCompose(flow -> {
return fillOutUserProfile(flow, profile, turnContext);
});
})
.thenCompose(result -> conversationState.saveChanges(turnContext))
.thenCompose(result -> userState.saveChanges(turnContext));
bots/custom_prompt_bot.py
async def on_message_activity(self, turn_context: TurnContext):
# Get the state properties from the turn context.
profile = await self.profile_accessor.get(turn_context, UserProfile)
flow = await self.flow_accessor.get(turn_context, ConversationFlow)
await self._fill_out_user_profile(flow, profile, turn_context)
# Save changes to UserState and ConversationState
await self.conversation_state.save_changes(turn_context)
await self.user_state.save_changes(turn_context)
Bots/CustomPromptBot.cs
{
var input = turnContext.Activity.Text?.Trim();
string message;
switch (flow.LastQuestionAsked)
{
case ConversationFlow.Question.None:
await turnContext.SendActivityAsync("Let's get started. What is your name?", null, null, cancellationToken);
flow.LastQuestionAsked = ConversationFlow.Question.Name;
break;
case ConversationFlow.Question.Name:
if (ValidateName(input, out var name, out message))
{
profile.Name = name;
await turnContext.SendActivityAsync($"Hi {profile.Name}.", null, null, cancellationToken);
await turnContext.SendActivityAsync("How old are you?", null, null, cancellationToken);
flow.LastQuestionAsked = ConversationFlow.Question.Age;
break;
}
else
{
await turnContext.SendActivityAsync(message ?? "I'm sorry, I didn't understand that.", null, null, cancellationToken);
break;
}
case ConversationFlow.Question.Age:
if (ValidateAge(input, out var age, out message))
{
profile.Age = age;
await turnContext.SendActivityAsync($"I have your age as {profile.Age}.", null, null, cancellationToken);
await turnContext.SendActivityAsync("When is your flight?", null, null, cancellationToken);
flow.LastQuestionAsked = ConversationFlow.Question.Date;
break;
}
else
{
await turnContext.SendActivityAsync(message ?? "I'm sorry, I didn't understand that.", null, null, cancellationToken);
break;
}
case ConversationFlow.Question.Date:
if (ValidateDate(input, out var date, out message))
{
profile.Date = date;
await turnContext.SendActivityAsync($"Your cab ride to the airport is scheduled for {profile.Date}.");
await turnContext.SendActivityAsync($"Thanks for completing the booking {profile.Name}.");
await turnContext.SendActivityAsync($"Type anything to run the bot again.");
flow.LastQuestionAsked = ConversationFlow.Question.None;
profile = new UserProfile();
break;
}
else
{
await turnContext.SendActivityAsync(message ?? "I'm sorry, I didn't understand that.", null, null, cancellationToken);
break;
}
}
}
bots/customPromptBot.js
// Manages the conversation flow for filling out the user's profile.
static async fillOutUserProfile(flow, profile, turnContext) {
const input = turnContext.activity.text;
let result;
switch (flow.lastQuestionAsked) {
// If we're just starting off, we haven't asked the user for any information yet.
// Ask the user for their name and update the conversation flag.
case question.none:
await turnContext.sendActivity("Let's get started. What is your name?");
flow.lastQuestionAsked = question.name;
break;
// If we last asked for their name, record their response, confirm that we got it.
// Ask them for their age and update the conversation flag.
case question.name:
result = this.validateName(input);
if (result.success) {
profile.name = result.name;
await turnContext.sendActivity(`I have your name as ${ profile.name }.`);
await turnContext.sendActivity('How old are you?');
flow.lastQuestionAsked = question.age;
break;
} else {
// If we couldn't interpret their input, ask them for it again.
// Don't update the conversation flag, so that we repeat this step.
await turnContext.sendActivity(result.message || "I'm sorry, I didn't understand that.");
break;
}
// If we last asked for their age, record their response, confirm that we got it.
// Ask them for their date preference and update the conversation flag.
case question.age:
result = this.validateAge(input);
if (result.success) {
profile.age = result.age;
await turnContext.sendActivity(`I have your age as ${ profile.age }.`);
await turnContext.sendActivity('When is your flight?');
flow.lastQuestionAsked = question.date;
break;
} else {
// If we couldn't interpret their input, ask them for it again.
// Don't update the conversation flag, so that we repeat this step.
await turnContext.sendActivity(result.message || "I'm sorry, I didn't understand that.");
break;
}
// If we last asked for a date, record their response, confirm that we got it,
// let them know the process is complete, and update the conversation flag.
case question.date:
result = this.validateDate(input);
if (result.success) {
profile.date = result.date;
await turnContext.sendActivity(`Your cab ride to the airport is scheduled for ${ profile.date }.`);
await turnContext.sendActivity(`Thanks for completing the booking ${ profile.name }.`);
await turnContext.sendActivity('Type anything to run the bot again.');
flow.lastQuestionAsked = question.none;
profile = {};
break;
} else {
// If we couldn't interpret their input, ask them for it again.
// Don't update the conversation flag, so that we repeat this step.
await turnContext.sendActivity(result.message || "I'm sorry, I didn't understand that.");
break;
}
}
}
CustomPromptBot.java
private static CompletableFuture<Void> fillOutUserProfile(ConversationFlow flow,
UserProfile profile,
TurnContext turnContext) {
String input = "";
if (StringUtils.isNotBlank(turnContext.getActivity().getText())) {
input = turnContext.getActivity().getText().trim();
}
switch (flow.getLastQuestionAsked()) {
case None:
return turnContext.sendActivity("Let's get started. What is your name?", null, null)
.thenRun(() -> {flow.setLastQuestionAsked(ConversationFlow.Question.Name);});
case Name:
Triple<Boolean, String, String> nameValidationResult = validateName(input);
if (nameValidationResult.getLeft()) {
profile.setName(nameValidationResult.getMiddle());
return turnContext.sendActivity(String.format("Hi %s.", profile.getName()), null, null)
.thenCompose(result -> turnContext.sendActivity("How old are you?", null, null))
.thenRun(() -> { flow.setLastQuestionAsked(ConversationFlow.Question.Age); });
} else {
if (StringUtils.isNotBlank(nameValidationResult.getRight())) {
return turnContext.sendActivity(nameValidationResult.getRight(), null, null)
.thenApply(result -> null);
} else {
return turnContext.sendActivity("I'm sorry, I didn't understand that.", null, null)
.thenApply(result -> null);
}
}
case Age:
Triple<Boolean, Integer, String> ageValidationResult = ValidateAge(input);
if (ageValidationResult.getLeft()) {
profile.setAge(ageValidationResult.getMiddle());
return turnContext.sendActivity(String.format("I have your age as %d.", profile.getAge()), null, null)
.thenCompose(result -> turnContext.sendActivity("When is your flight?", null, null))
.thenRun(() -> { flow.setLastQuestionAsked(ConversationFlow.Question.Date); });
} else {
if (StringUtils.isNotBlank(ageValidationResult.getRight())) {
return turnContext.sendActivity(ageValidationResult.getRight(), null, null)
.thenApply(result -> null);
} else {
return turnContext.sendActivity("I'm sorry, I didn't understand that.", null, null)
.thenApply(result -> null);
}
}
case Date:
Triple<Boolean, String, String> dateValidationResult = ValidateDate(input);
AtomicReference<UserProfile> profileReference = new AtomicReference<UserProfile>(profile);
if (dateValidationResult.getLeft()) {
profile.setDate(dateValidationResult.getMiddle());
return turnContext.sendActivity(
String.format("Your cab ride to the airport is scheduled for %s.",
profileReference.get().getDate()))
.thenCompose(result -> turnContext.sendActivity(
String.format("Thanks for completing the booking %s.", profileReference.get().getDate())))
.thenCompose(result -> turnContext.sendActivity("Type anything to run the bot again."))
.thenRun(() -> {
flow.setLastQuestionAsked(ConversationFlow.Question.None);
profileReference.set(new UserProfile());
});
} else {
if (StringUtils.isNotBlank(dateValidationResult.getRight())) {
return turnContext.sendActivity(dateValidationResult.getRight(), null, null)
.thenApply(result -> null);
} else {
return turnContext.sendActivity("I'm sorry, I didn't understand that.", null, null)
.thenApply(result -> null);
}
}
default:
return CompletableFuture.completedFuture(null);
}
bots/custom_prompt_bot.py
async def _fill_out_user_profile(
self, flow: ConversationFlow, profile: UserProfile, turn_context: TurnContext
):
user_input = turn_context.activity.text.strip()
# ask for name
if flow.last_question_asked == Question.NONE:
await turn_context.send_activity(
MessageFactory.text("Let's get started. What is your name?")
)
flow.last_question_asked = Question.NAME
# validate name then ask for age
elif flow.last_question_asked == Question.NAME:
validate_result = self._validate_name(user_input)
if not validate_result.is_valid:
await turn_context.send_activity(
MessageFactory.text(validate_result.message)
)
else:
profile.name = validate_result.value
await turn_context.send_activity(
MessageFactory.text(f"Hi {profile.name}")
)
await turn_context.send_activity(
MessageFactory.text("How old are you?")
)
flow.last_question_asked = Question.AGE
# validate age then ask for date
elif flow.last_question_asked == Question.AGE:
validate_result = self._validate_age(user_input)
if not validate_result.is_valid:
await turn_context.send_activity(
MessageFactory.text(validate_result.message)
)
else:
profile.age = validate_result.value
await turn_context.send_activity(
MessageFactory.text(f"I have your age as {profile.age}.")
)
await turn_context.send_activity(
MessageFactory.text("When is your flight?")
)
flow.last_question_asked = Question.DATE
# validate date and wrap it up
elif flow.last_question_asked == Question.DATE:
validate_result = self._validate_date(user_input)
if not validate_result.is_valid:
await turn_context.send_activity(
MessageFactory.text(validate_result.message)
)
else:
profile.date = validate_result.value
await turn_context.send_activity(
MessageFactory.text(
f"Your cab ride to the airport is scheduled for {profile.date}."
)
)
await turn_context.send_activity(
MessageFactory.text(
f"Thanks for completing the booking {profile.name}."
)
)
await turn_context.send_activity(
MessageFactory.text("Type anything to run the bot again.")
)
flow.last_question_asked = Question.NONE
Bots/CustomPromptBot.cs
private static bool ValidateName(string input, out string name, out string message)
{
name = null;
message = null;
if (string.IsNullOrWhiteSpace(input))
{
message = "Please enter a name that contains at least one character.";
}
else
{
name = input.Trim();
}
return message is null;
}
private static bool ValidateAge(string input, out int age, out string message)
{
age = 0;
message = null;
// Try to recognize the input as a number. This works for responses such as "twelve" as well as "12".
try
{
// Attempt to convert the Recognizer result to an integer. This works for "a dozen", "twelve", "12", and so on.
// The recognizer returns a list of potential recognition results, if any.
var results = NumberRecognizer.RecognizeNumber(input, Culture.English);
foreach (var result in results)
{
// The result resolution is a dictionary, where the "value" entry contains the processed string.
if (result.Resolution.TryGetValue("value", out var value))
{
age = Convert.ToInt32(value);
if (age >= 18 && age <= 120)
{
return true;
}
}
}
message = "Please enter an age between 18 and 120.";
}
catch
{
message = "I'm sorry, I could not interpret that as an age. Please enter an age between 18 and 120.";
}
return message is null;
}
private static bool ValidateDate(string input, out string date, out string message)
{
date = null;
message = null;
// Try to recognize the input as a date-time. This works for responses such as "11/14/2018", "9pm", "tomorrow", "Sunday at 5pm", and so on.
// The recognizer returns a list of potential recognition results, if any.
try
{
var results = DateTimeRecognizer.RecognizeDateTime(input, Culture.English);
// Check whether any of the recognized date-times are appropriate,
// and if so, return the first appropriate date-time. We're checking for a value at least an hour in the future.
var earliest = DateTime.Now.AddHours(1.0);
foreach (var result in results)
{
// The result resolution is a dictionary, where the "values" entry contains the processed input.
var resolutions = result.Resolution["values"] as List<Dictionary<string, string>>;
foreach (var resolution in resolutions)
{
// The processed input contains a "value" entry if it is a date-time value, or "start" and
// "end" entries if it is a date-time range.
if (resolution.TryGetValue("value", out var dateString)
|| resolution.TryGetValue("start", out dateString))
{
if (DateTime.TryParse(dateString, out var candidate)
&& earliest < candidate)
{
date = candidate.ToShortDateString();
return true;
}
}
}
}
message = "I'm sorry, please enter a date at least an hour out.";
}
catch
{
message = "I'm sorry, I could not interpret that as an appropriate date. Please enter a date at least an hour out.";
}
return false;
}
bots/customPromptBot.js
// Validates name input. Returns whether validation succeeded and either the parsed and normalized
// value or a message the bot can use to ask the user again.
static validateName(input) {
const name = input && input.trim();
return name !== undefined
? { success: true, name: name }
: { success: false, message: 'Please enter a name that contains at least one character.' };
};
// Validates age input. Returns whether validation succeeded and either the parsed and normalized
// value or a message the bot can use to ask the user again.
static validateAge(input) {
// Try to recognize the input as a number. This works for responses such as "twelve" as well as "12".
try {
// Attempt to convert the Recognizer result to an integer. This works for "a dozen", "twelve", "12", and so on.
// The recognizer returns a list of potential recognition results, if any.
const results = Recognizers.recognizeNumber(input, Recognizers.Culture.English);
let output;
results.forEach(result => {
// result.resolution is a dictionary, where the "value" entry contains the processed string.
const value = result.resolution.value;
if (value) {
const age = parseInt(value);
if (!isNaN(age) && age >= 18 && age <= 120) {
output = { success: true, age: age };
return;
}
}
});
return output || { success: false, message: 'Please enter an age between 18 and 120.' };
} catch (error) {
return {
success: false,
message: "I'm sorry, I could not interpret that as an age. Please enter an age between 18 and 120."
};
}
}
// Validates date input. Returns whether validation succeeded and either the parsed and normalized
// value or a message the bot can use to ask the user again.
static validateDate(input) {
// Try to recognize the input as a date-time. This works for responses such as "11/14/2018", "today at 9pm", "tomorrow", "Sunday at 5pm", and so on.
// The recognizer returns a list of potential recognition results, if any.
try {
const results = Recognizers.recognizeDateTime(input, Recognizers.Culture.English);
const now = new Date();
const earliest = now.getTime() + (60 * 60 * 1000);
let output;
results.forEach(result => {
// result.resolution is a dictionary, where the "values" entry contains the processed input.
result.resolution.values.forEach(resolution => {
// The processed input contains a "value" entry if it is a date-time value, or "start" and
// "end" entries if it is a date-time range.
const datevalue = resolution.value || resolution.start;
// If only time is given, assume it's for today.
const datetime = resolution.type === 'time'
? new Date(`${ now.toLocaleDateString() } ${ datevalue }`)
: new Date(datevalue);
if (datetime && earliest < datetime.getTime()) {
output = { success: true, date: datetime.toLocaleDateString() };
return;
}
});
});
return output || { success: false, message: "I'm sorry, please enter a date at least an hour out." };
} catch (error) {
return {
success: false,
message: "I'm sorry, I could not interpret that as an appropriate date. Please enter a date at least an hour out."
};
}
}
CustomPromptBot.java
private static Triple<Boolean, String, String> validateName(String input) {
String name = null;
String message = null;
if (StringUtils.isEmpty(input)) {
message = "Please enter a name that contains at least one character.";
} else {
name = input.trim();
}
return Triple.of(StringUtils.isBlank(message), name, message);
}
private static Triple<Boolean, Integer, String> ValidateAge(String input) {
int age = 0;
String message = null;
// Try to recognize the input as a number. This works for responses such as "twelve" as well as "12".
try {
// Attempt to convert the Recognizer result to an integer. This works for "a dozen", "twelve", "12", and so on.
// The recognizer returns a list of potential recognition results, if any.
List<ModelResult> results = NumberRecognizer.recognizeNumber(input, PromptCultureModels.ENGLISH_CULTURE);
for (ModelResult result : results) {
// The result resolution is a dictionary, where the "value" entry contains the processed String.
Object value = result.resolution.get("value");
if (value != null) {
age = Integer.parseInt((String) value);
if (age >= 18 && age <= 120) {
return Triple.of(true, age, "");
}
}
}
message = "Please enter an age between 18 and 120.";
}
catch (Throwable th) {
message = "I'm sorry, I could not interpret that as an age. Please enter an age between 18 and 120.";
}
return Triple.of(StringUtils.isBlank(message), age, message);
}
private static Triple<Boolean, String, String> ValidateDate(String input) {
String date = null;
String message = null;
// Try to recognize the input as a date-time. This works for responses such as "11/14/2018", "9pm", "tomorrow", "Sunday at 5pm", and so on.
// The recognizer returns a list of potential recognition results, if any.
try {
List<ModelResult> results = DateTimeRecognizer.recognizeDateTime(input, PromptCultureModels.ENGLISH_CULTURE);
// Check whether any of the recognized date-times are appropriate,
// and if so, return the first appropriate date-time. We're checking for a value at least an hour in the future.
LocalDateTime earliest = LocalDateTime.now().plus(1, ChronoUnit.HOURS);
for (ModelResult result : results) {
// The result resolution is a dictionary, where the "values" entry contains the processed input.
List<Map<String, Object>> resolutions = (List<Map<String, Object>>) result.resolution.get("values");
for (Map<String, Object> resolution : resolutions) {
// The processed input contains a "value" entry if it is a date-time value, or "start" and
// "end" entries if it is a date-time range.
String dateString = (String) resolution.get("value");
if (StringUtils.isBlank(dateString)) {
dateString = (String) resolution.get("start");
}
if (StringUtils.isNotBlank(dateString)){
DateTimeFormatter f = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
LocalDateTime candidate;
try {
candidate = LocalDateTime.from(f.parse(dateString));
} catch (DateTimeParseException err) {
// If the input is a date, it will throw an exception and it will create a datetime
// with the MIN localtime
DateTimeFormatter d = DateTimeFormatter.ofPattern("yyyy-MM-dd");
candidate = LocalDateTime.of(LocalDate.parse(dateString, d), LocalDateTime.MIN.toLocalTime());
}
if (earliest.isBefore(candidate)) {
DateTimeFormatter dateformat = DateTimeFormatter.ofPattern("MM-dd-yyyy");
date = candidate.format(dateformat);
return Triple.of(true, date, message);
}
}
}
}
bots/custom_prompt_bot.py
def _validate_name(self, user_input: str) -> ValidationResult:
if not user_input:
return ValidationResult(
is_valid=False,
message="Please enter a name that contains at least one character.",
)
return ValidationResult(is_valid=True, value=user_input)
def _validate_age(self, user_input: str) -> ValidationResult:
# Attempt to convert the Recognizer result to an integer. This works for "a dozen", "twelve", "12", and so on.
# The recognizer returns a list of potential recognition results, if any.
results = recognize_number(user_input, Culture.English)
for result in results:
if "value" in result.resolution:
age = int(result.resolution["value"])
if 18 <= age <= 120:
return ValidationResult(is_valid=True, value=age)
return ValidationResult(
is_valid=False, message="Please enter an age between 18 and 120."
)
def _validate_date(self, user_input: str) -> ValidationResult:
try:
# Try to recognize the input as a date-time. This works for responses such as "11/14/2018", "9pm",
# "tomorrow", "Sunday at 5pm", and so on. The recognizer returns a list of potential recognition results,
# if any.
results = recognize_datetime(user_input, Culture.English)
for result in results:
for resolution in result.resolution["values"]:
if "value" in resolution:
now = datetime.now()
value = resolution["value"]
if resolution["type"] == "date":
candidate = datetime.strptime(value, "%Y-%m-%d")
elif resolution["type"] == "time":
candidate = datetime.strptime(value, "%H:%M:%S")
candidate = candidate.replace(
year=now.year, month=now.month, day=now.day
)
else:
candidate = datetime.strptime(value, "%Y-%m-%d %H:%M:%S")
# user response must be more than an hour out
diff = candidate - now
if diff.total_seconds() >= 3600:
return ValidationResult(
is_valid=True,
value=candidate.strftime("%m/%d/%y"),
)
return ValidationResult(
is_valid=False,
message="I'm sorry, please enter a date at least an hour out.",
)
except ValueError:
return ValidationResult(
is_valid=False,
message="I'm sorry, I could not interpret that as an appropriate "
"date. Please enter a date at least an hour out.",
)