Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance. Project price only 1 $
You can buy this project and download/modify it how often you want.
/*
* Copyright (C) 2017 VSCT
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package fr.vsct.tock.bot.connector.alexa
import com.amazon.speech.json.SpeechletRequestEnvelope
import com.amazon.speech.slu.Slot
import com.amazon.speech.speechlet.IntentRequest
import com.amazon.speech.speechlet.SessionEndedRequest
import com.amazon.speech.speechlet.SessionStartedRequest
import fr.vsct.tock.bot.definition.BotDefinition
import fr.vsct.tock.bot.engine.action.SendSentence
import fr.vsct.tock.bot.engine.dialog.EventState
import fr.vsct.tock.bot.engine.event.EndSessionEvent
import fr.vsct.tock.bot.engine.event.Event
import fr.vsct.tock.bot.engine.event.StartSessionEvent
import fr.vsct.tock.bot.engine.user.PlayerId
import fr.vsct.tock.bot.engine.user.PlayerType
import fr.vsct.tock.nlp.api.client.model.Entity
import fr.vsct.tock.nlp.api.client.model.EntityType
import fr.vsct.tock.nlp.api.client.model.NlpEntityValue
import fr.vsct.tock.nlp.api.client.model.NlpResult
import java.util.Locale
/**
* An Alexa model to Tock model mapper.
* Provided via [addAlexaConnector.alexaTockMapper] parameter.
*/
open class AlexaTockMapper(val applicationId: String) {
/**
* Returns a Tock intent from an Alexa intent.
*/
open fun alexaIntentToTockIntent(request: IntentRequest, botDefinition: BotDefinition): String {
val intentName = request.intent.name
return if (intentName.endsWith("_intent")) {
intentName.substring(0, "_intent".length)
} else {
intentName
}
}
/**
* Returns a Tock entity from an Alexa slot.
*/
open fun alexaEntityToTockEntity(
request: IntentRequest,
intent: String,
slot: String,
botDefinition: BotDefinition
): Entity? {
val entityName = slot.substring(0, slot.length - "_slot".length)
val namespace = botDefinition.namespace
return Entity(EntityType("$namespace:$entityName"), entityName)
}
/**
* Returns a Tock [NlpEntityValue] from an Alexa slot.
*/
open fun alexaEntityToTockEntityValue(
request: IntentRequest,
intent: String,
slot: Slot,
botDefinition: BotDefinition,
index: Int
): NlpEntityValue {
val entity = alexaEntityToTockEntity(request, intent, slot.name, botDefinition)!!
return NlpEntityValue(
index,
index + slot.value!!.length,
entity
)
}
/**
* Gets slots from the intent request.
*/
open fun getSlots(request: IntentRequest): Map? = request.intent?.slots
/**
* Returns a [StartSessionEvent] from an Alexa [SessionStartedRequest].
*/
open fun toStartSessionEvent(requestEnvelope: SpeechletRequestEnvelope): StartSessionEvent {
return StartSessionEvent(
PlayerId(requestEnvelope.session.user.userId, PlayerType.user),
applicationId
)
}
/**
* Returns a [EndSessionEvent] from an Alexa [SessionEndedRequest].
*/
open fun toEndSessionEvent(requestEnvelope: SpeechletRequestEnvelope): EndSessionEvent {
return EndSessionEvent(
PlayerId(requestEnvelope.session.user.userId, PlayerType.user),
applicationId
)
}
/**
* Returns an [Event] from an Alexa [IntentRequest].
*/
open fun toEvent(userId: String, request: IntentRequest, botDefinition: BotDefinition): Event {
val playerId = PlayerId(userId, PlayerType.user)
val botId = PlayerId(applicationId, PlayerType.bot)
val namespace = botDefinition.namespace
val intent = alexaIntentToTockIntent(request, botDefinition)
var index = 0
val slots = getSlots(request)?.values
?.filter { it.value != null && alexaEntityToTockEntity(request, intent, it.name, botDefinition) != null }
?: emptyList()
val entityValues =
slots.map {
val value = alexaEntityToTockEntityValue(request, intent, it, botDefinition, index)
index += it.value.length + 1
value
}
val precomputedNlp = NlpResult(
intent,
namespace,
Locale(request.locale.language),
entityValues,
emptyList(),
1.0,
1.0,
slots.joinToString(" ") { it.value!! }
)
return SendSentence(
playerId,
applicationId,
botId,
null,
messages = mutableListOf(AlexaInputMessage(request)),
state = EventState(
targetConnectorType = alexaConnectorType,
userInterface = alexaConnectorType.userInterfaceType
),
precomputedNlp = precomputedNlp
)
}
}
