Java tutorial
/** * Copyright (C) 2015 David Phillips * Copyright (C) 2015 Eric Olson * Copyright (C) 2015 Rusty Gerard * Copyright (C) 2015 Paul Winters * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package com.derpgroup.quip.bots.insultibot.resource; import java.util.Map; import io.dropwizard.setup.Environment; import javax.ws.rs.Consumes; import javax.ws.rs.HeaderParam; import javax.ws.rs.POST; import javax.ws.rs.Path; import javax.ws.rs.Produces; import javax.ws.rs.QueryParam; import javax.ws.rs.core.MediaType; import org.apache.commons.lang.StringUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import com._3po_labs.derpwizard.core.exception.DerpwizardException; import com._3po_labs.derpwizard.core.exception.DerpwizardException.DerpwizardExceptionReasons; import com.amazon.speech.json.SpeechletRequestEnvelope; import com.amazon.speech.json.SpeechletResponseEnvelope; import com.amazon.speech.speechlet.SpeechletRequest; import com.amazon.speech.speechlet.SpeechletResponse; import com.amazon.speech.speechlet.User; import com.amazon.speech.ui.Reprompt; import com.amazon.speech.ui.SimpleCard; import com.amazon.speech.ui.SsmlOutputSpeech; import com.derpgroup.derpwizard.voice.alexa.AlexaUtils; import com.derpgroup.derpwizard.voice.exception.DerpwizardExceptionAlexaWrapper; import com.derpgroup.derpwizard.voice.model.CommonMetadata; import com.derpgroup.derpwizard.voice.model.ServiceInput; import com.derpgroup.derpwizard.voice.model.ServiceOutput; import com.derpgroup.derpwizard.voice.util.ConversationHistoryUtils; import com.derpgroup.quip.MixInModule; import com.derpgroup.quip.QuipMetadata; import com.derpgroup.quip.configuration.MainConfig; import com.derpgroup.quip.logger.QuipLogger; import com.derpgroup.quip.manager.QuipManager; import com.derpgroup.quip.util.QuipUtil; import com.fasterxml.jackson.core.type.TypeReference; import com.fasterxml.jackson.databind.ObjectMapper; /** * REST APIs for requests generating from Amazon Alexa * * @author Eric * @since 0.0.1 */ @Path("/insultibot/alexa") @Produces(MediaType.APPLICATION_JSON) @Consumes(MediaType.APPLICATION_JSON) public class InsultiBotAlexaResource { private static final Logger LOG = LoggerFactory.getLogger(InsultiBotAlexaResource.class); private static final String ALEXA_VERSION = "1.1.1"; private QuipManager manager; public InsultiBotAlexaResource(MainConfig config, Environment env) { manager = new QuipManager(config); } /** * Generates a welcome message. * * @return The message, never null */ @POST public SpeechletResponseEnvelope doAlexaRequest(SpeechletRequestEnvelope request, @HeaderParam("SignatureCertChainUrl") String signatureCertChainUrl, @HeaderParam("Signature") String signature, @QueryParam("testFlag") Boolean testFlag) { ObjectMapper mapper = new ObjectMapper().registerModule(new MixInModule()); CommonMetadata outputMetadata = null; try { if (request.getRequest() == null) { throw new DerpwizardException(DerpwizardExceptionReasons.MISSING_INFO.getSsml(), "Missing request body."); } if (testFlag == null || testFlag == false) { AlexaUtils.validateAlexaRequest(request, signatureCertChainUrl, signature); } Map<String, Object> sessionAttributes = request.getSession().getAttributes(); sessionAttributes.put("bot", "insultibot"); User user = request.getSession().getUser(); if (user == null) { throw new DerpwizardException(DerpwizardExceptionReasons.MISSING_INFO.getSsml(), "No user included as part of request body."); } sessionAttributes.put("userId", user.getUserId()); // Build the Metadata objects here CommonMetadata inputMetadata = mapper.convertValue(sessionAttributes, new TypeReference<QuipMetadata>() { }); outputMetadata = mapper.convertValue(sessionAttributes, new TypeReference<QuipMetadata>() { }); /////////////////////////////////// // Build the ServiceInput object // /////////////////////////////////// ServiceInput serviceInput = new ServiceInput(); serviceInput.setMetadata(inputMetadata); Map<String, String> messageAsMap = AlexaUtils.getMessageAsMap(request.getRequest()); serviceInput.setMessageAsMap(messageAsMap); SpeechletRequest speechletRequest = (SpeechletRequest) request.getRequest(); String intent = QuipUtil.getMessageSubject(speechletRequest); serviceInput.setSubject(intent); //////////////////////////////////// // Build the ServiceOutput object // //////////////////////////////////// ServiceOutput serviceOutput = new ServiceOutput(); serviceOutput.setMetadata(outputMetadata); serviceOutput.setConversationEnded(false); ConversationHistoryUtils.registerRequestInConversationHistory(intent, messageAsMap, outputMetadata, outputMetadata.getConversationHistory()); // Perform the service request QuipLogger.log(serviceInput); manager.handleRequest(serviceInput, serviceOutput); // Build the response SpeechletResponseEnvelope responseEnvelope = new SpeechletResponseEnvelope(); Map<String, Object> sessionAttributesOutput = mapper.convertValue(outputMetadata, new TypeReference<Map<String, Object>>() { }); responseEnvelope.setSessionAttributes(sessionAttributesOutput); SpeechletResponse speechletResponse = new SpeechletResponse(); SimpleCard card; Reprompt reprompt = null; SsmlOutputSpeech outputSpeech; switch (serviceInput.getSubject()) { case "END_OF_CONVERSATION": case "STOP": case "CANCEL": outputSpeech = null; card = null; speechletResponse.setShouldEndSession(true); break; default: if (StringUtils.isNotEmpty(serviceOutput.getVisualOutput().getTitle()) && StringUtils.isNotEmpty(serviceOutput.getVisualOutput().getText())) { card = new SimpleCard(); card.setTitle(serviceOutput.getVisualOutput().getTitle()); card.setContent(serviceOutput.getVisualOutput().getText()); } else { card = null; } if (serviceOutput.getDelayedVoiceOutput() != null && StringUtils.isNotEmpty(serviceOutput.getDelayedVoiceOutput().getSsmltext())) { reprompt = new Reprompt(); SsmlOutputSpeech repromptSpeech = new SsmlOutputSpeech(); repromptSpeech .setSsml("<speak>" + serviceOutput.getDelayedVoiceOutput().getSsmltext() + "</speak>"); reprompt.setOutputSpeech(repromptSpeech); } outputSpeech = new SsmlOutputSpeech(); outputSpeech.setSsml("<speak>" + serviceOutput.getVoiceOutput().getSsmltext() + "</speak>"); speechletResponse.setShouldEndSession(serviceOutput.isConversationEnded()); break; } speechletResponse.setOutputSpeech(outputSpeech); speechletResponse.setCard(card); speechletResponse.setReprompt(reprompt); responseEnvelope.setResponse(speechletResponse); responseEnvelope.setVersion(ALEXA_VERSION); return responseEnvelope; } catch (DerpwizardException e) { LOG.debug(e.getMessage()); return new DerpwizardExceptionAlexaWrapper(e, ALEXA_VERSION, mapper.convertValue(outputMetadata, new TypeReference<Map<String, Object>>() { })); } catch (Throwable t) { LOG.debug(t.getMessage()); return new DerpwizardExceptionAlexaWrapper(new DerpwizardException(t.getMessage()), ALEXA_VERSION, mapper.convertValue(outputMetadata, new TypeReference<Map<String, Object>>() { })); } } }