Java tutorial
/** Original form of this file modified by Steven Bell. 2016. */ // Original Copyright /** Copyright 2014-2015 Amazon.com, Inc. or its affiliates. All Rights Reserved. Licensed under the Apache License, Version 2.0 (the "License"). You may not use this file except in compliance with the License. A copy of the License is located at http://aws.amazon.com/apache2.0/ or in the "license" file accompanying this file. This file 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 main.flureport; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.net.URL; import java.nio.charset.Charset; import java.text.DateFormat; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Calendar; import java.util.Collections; import java.util.Date; import java.util.regex.Matcher; import java.util.regex.Pattern; import org.apache.commons.io.IOUtils; import org.apache.commons.lang3.StringUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.w3c.dom.Document; import org.w3c.dom.Node; import org.w3c.dom.NodeList; import com.amazon.speech.slu.Intent; import com.amazon.speech.slu.Slot; import com.amazon.speech.speechlet.IntentRequest; import com.amazon.speech.speechlet.LaunchRequest; import com.amazon.speech.speechlet.Session; import com.amazon.speech.speechlet.SessionEndedRequest; import com.amazon.speech.speechlet.SessionStartedRequest; import com.amazon.speech.speechlet.Speechlet; import com.amazon.speech.speechlet.SpeechletException; import com.amazon.speech.speechlet.SpeechletResponse; import com.amazon.speech.ui.OutputSpeech; import com.amazon.speech.ui.PlainTextOutputSpeech; import com.amazon.speech.ui.SsmlOutputSpeech; import sun.java2d.pipe.NullPipe; import com.amazon.speech.ui.Reprompt; import com.amazon.speech.ui.SimpleCard; // TODO - update the below docs descriptor /** * This sample shows how to create a Lambda function for handling Alexa Skill requests that: * * <ul> * <li><b>Web service</b>: communicate with an external web service to get the influenza report for specified state * or the states with influenza outbreaks. * </li> * </li> * <p> * <li><b>Dialog and Session state</b>: Handles two models, both a one-shot ask and tell model, and * a multi-turn dialog model</li> * <li><b>SSML</b>: Using SSML tags to control how Alexa renders the text-to-speech</li> * </ul> * <p> * <h2>Examples</h2> * <p> * <b>One-shot model</b> * <p> * User: "Alexa, ask Influenza Information what the influenza status is for Puerto Rico." * <p> * Alexa: "The CDC report that influenza is Widespread in Puerto Rico . Wanna know about another state?" * <p> * User: "No." * <p> * Alexa: "Good bye!" * <p> * * <b>Dialog model</b> * <p> * User: "Alexa, open Influenza Information" * <p> * Alexa: ""Hi, Influenza Information can tell you the level of influenza in each state or get you a list of * states where the CDC has classified the level of influenza as widespread. Would you like to get * a State influenza report or to know which states have widespread influenza?";" * <p> * User: "I would like a State influenza report for Guam." * <p> * Alexa: "The CDC reports that the influenza is Widespread in Guam. Would you like the list of states where * the influenza is widespread?" * <p> * User: "Yes." * <p> * Alexa: "The influenza is reported by the CDC to be widespread in Guam, Puerto Rico and the Virgin Islands. * Would you like to get a influenza report for a specific state?" * <p> * User: "No." * <p> * Alexa: "Ok, Influenza Information signing out. Good bye!" * <p> */ public class FluReportSpeechlet implements Speechlet { private static final Logger log = LoggerFactory.getLogger(FluReportSpeechlet.class); /** * Constant defining session attribute key for the event index. */ private static final String SESSION_INDEX = "index"; /** * Constant defining session attribute key for the event text key for date of events. */ private static final String SESSION_TEXT = "text"; /** * Constant defining session attribute key for the intent slot key for the State for which a Influenza Information is requested. */ private static final String SLOT_STATE = "State"; private static fluReportCDCXML fluReport = fluReportCDCXML.getInstance(); private static Document doc; @Override public void onSessionStarted(final SessionStartedRequest request, final Session session) throws SpeechletException { log.info("onSessionStarted requestId={}, sessionId={}", request.getRequestId(), session.getSessionId()); // any initialization logic goes here } @Override public SpeechletResponse onLaunch(final LaunchRequest request, final Session session) throws SpeechletException { log.info("onLaunch requestId={}, sessionId={}", request.getRequestId(), session.getSessionId()); return getWelcomeResponse(); } @Override public SpeechletResponse onIntent(final IntentRequest request, final Session session) throws SpeechletException { System.out.println("onIntent requestId={ " + request.getRequestId() + " }, sessionId={" + session.getSessionId() + "}"); Intent intent = request.getIntent(); String intentName = intent.getName(); System.out.println("INTENT NAME:" + intentName); // TODO populate the else if below with all intents // intent factory, list the intents created here if ("ListStatesWithFluOutbreakIntent".equals(intentName)) { System.out.println("INTENT ListStatesWithFluOutbreakIntent:" + intentName); return ListStatesWithFluOutbreakIntent(session); } else if ("GetFluLevelByStateIntent".equals(intentName)) { System.out.println("INTENT GetFluLevelByStateIntent:" + intentName); return GetFluLevelByStateIntent(intent, session, intent.getSlot(SLOT_STATE)); } else if ("AMAZON.HelpIntent".equals(intentName)) { // Create the plain text output. String speechOutput = "Influenza Information can give you the states where the CDC reports that the influenza is widespread." + "To get this info say something like, where is the influenza or in which states is " + "influenza widespread. Influenza Information can also tell you the prevalence of influenza in any state." + " Ask for this by saying, give me the influenza report for Florida or what is the influenza prevalence in California."; String repromptText = "Would you like to get a state specific report or a list of states with widespread flu?"; return newAskResponse(speechOutput, false, repromptText, false); } else if ("AMAZON.StopIntent".equals(intentName)) { PlainTextOutputSpeech outputSpeech = new PlainTextOutputSpeech(); outputSpeech.setText("Goodbye"); return SpeechletResponse.newTellResponse(outputSpeech); } else if ("AMAZON.CancelIntent".equals(intentName)) { PlainTextOutputSpeech outputSpeech = new PlainTextOutputSpeech(); outputSpeech.setText("Goodbye"); return SpeechletResponse.newTellResponse(outputSpeech); } else { throw new SpeechletException("Invalid Intent"); } } public static SpeechletResponse GetFluLevelByStateIntent(Intent intent, Session session, Slot slot) { if (slot.equals(null)) { String speechOutput = "I misunderstood you. Please make your request again."; // Create the plain text output SsmlOutputSpeech outputSpeech = new SsmlOutputSpeech(); outputSpeech.setSsml("<speak>" + speechOutput + "</speak>"); return SpeechletResponse.newTellResponse(outputSpeech); } String stateSlotString = slot.getValue().toString().toUpperCase(); System.out.println("**********stateSlotString" + stateSlotString); String standardizedStateName = null; try { standardizedStateName = convertStateIntentToStateEnum(slot); System.out.println("***standardizedStateName***" + standardizedStateName); } catch (NullPointerException npe) { System.out.println("The stateSlotString string from the StateSlot param in " + "convertStateIntentToStateEnum is null. Exception: " + npe); String speechOutput = "I misunderstood you. Please make your request again."; // Create the plain text output SsmlOutputSpeech outputSpeech = new SsmlOutputSpeech(); outputSpeech.setSsml("<speak>" + speechOutput + "</speak>"); return SpeechletResponse.newTellResponse(outputSpeech); } try { doc = fluReport.getFluReport(); } catch (NullPointerException npe) { System.out.println("fluReport.getFluReport(): " + npe); } String fluLevelforState = null; if (doc.equals(null)) { System.out.println("$$$$$ NULL INFLUENZA INFORMATION"); } ; NodeList listOfTimeperiods = doc.getElementsByTagName("timeperiod"); Node mostRecentReportNode = XMLPAXParseWebCall.getMostRecentNode(listOfTimeperiods); String subtitle = mostRecentReportNode.getAttributes().getNamedItem("subtitle").getNodeValue().toString(); try { fluLevelforState = XMLPAXParseWebCall.getStateReport(standardizedStateName, mostRecentReportNode); System.out.println( "list of Prevalence of influenza in " + standardizedStateName + " is " + fluLevelforState); } catch (NullPointerException e) { System.out.println("in GetFluLevelByStateIntent(), fluLevelforState: " + e); } String speechPrefixContent = "<p>For the " + subtitle + "</p> "; String cardPrefixContent = "For the State of " + standardizedStateName + ", The CDC report the prevalence of the influenza as " + fluLevelforState + "."; String cardTitle = "Influenza Information"; String speechOutput = "For the State of " + standardizedStateName + ", The CDC report the prevalence of the influenza as " + fluLevelforState + "."; String repromptText = "Influenza Information can give you a list of states where the CDC reports that influenza infections" + "are widespread. To get this report say something like, where is the influenza or in which states is the " + "influenza widespread. Influenza Information can also tell you the prevelance of influenza in any state as " + "reported by the CDC. Ask for this by saying, give me influenza information for Florida or " + "what is the influenza prevalence in California." + "Would you like to get another state specific " + "report or a list of states with widespread influenza?"; String askForNextStep = " Would you like to get a state specific " + "report or a list of states with widespread influenza?"; if (StringUtils.isEmpty(fluLevelforState) || fluLevelforState == null || doc == null) { speechOutput = "There is no report available at this time." + " Please try again later."; // Create the plain text output SsmlOutputSpeech outputSpeech = new SsmlOutputSpeech(); outputSpeech.setSsml("<speak>" + speechOutput + "</speak>"); return SpeechletResponse.newTellResponse(outputSpeech); } else if (fluLevelforState.equalsIgnoreCase("not found")) { speechOutput = "I missunderstood you. Please make your request again."; // Create the plain text output SsmlOutputSpeech outputSpeech = new SsmlOutputSpeech(); outputSpeech.setSsml("<speak>" + speechOutput + "</speak>"); return SpeechletResponse.newTellResponse(outputSpeech); } else { StringBuilder speechOutputBuilder = new StringBuilder(); speechOutputBuilder.append(speechPrefixContent); speechOutputBuilder.append(speechOutput); speechOutputBuilder.append(askForNextStep); speechOutput = speechOutputBuilder.toString(); StringBuilder cardOutputBuilder = new StringBuilder(); cardOutputBuilder.append(cardPrefixContent); cardOutputBuilder.append(askForNextStep); // Create the Simple card content. SimpleCard card = new SimpleCard(); card.setTitle(cardTitle); card.setContent(cardOutputBuilder.toString()); SpeechletResponse response = newAskResponse("<speak>" + speechOutput + "</speak>", true, repromptText, false); response.setCard(card); return response; } } private SpeechletResponse ListStatesWithFluOutbreakIntent(Session session) { System.out.println("In ListStatesWithFluOutbreakIntent();"); doc = fluReport.getFluReport(); NodeList listOfTimeperiods = doc.getElementsByTagName("timeperiod"); Node mostRecentReportNode = XMLPAXParseWebCall.getMostRecentNode(listOfTimeperiods); String listOfStatesWithWidespreadFlu = XMLPAXParseWebCall.getListStatesWithFlu(mostRecentReportNode) .toString(); listOfStatesWithWidespreadFlu = listOfStatesWithWidespreadFlu.replace("[", ""); listOfStatesWithWidespreadFlu = listOfStatesWithWidespreadFlu.replace("]", ""); String subtitle = mostRecentReportNode.getAttributes().getNamedItem("subtitle").getNodeValue().toString(); String speechPrefixContent = "<p>For the " + subtitle + "</p> "; String cardPrefixContent = "The CDC reports that the prevalence of the influenza is widespread " + "in the following states " + listOfStatesWithWidespreadFlu + "."; System.out.println("listOfStatesWithWidespreadFlu: " + listOfStatesWithWidespreadFlu); String cardTitle = "Influenza Information, States with widespread influenza"; String speechOutput = "The CDC reports that the prevalence of influenza is widespread " + "in the following states " + listOfStatesWithWidespreadFlu; String repromptText = "Influenza Information can give you the states where the CDC reports that the influenza is widespread." + "To get this report say something like, where is the influenza or in which states is the " + "influenza widespread. Influenza Information can also tell you the prevelance of Flu in any state as " + "reported by the CDC. Ask for this by saying, give me the influenza report for Florida or " + "what's the influenza prevalence in California." + "Would you like to get a state specific " + "report or a list of states with widespread influenza?"; String askForNextStep = " Would you like to get a state specific " + "report or a list of states with widespread influenza?"; if (listOfStatesWithWidespreadFlu.isEmpty()) { speechOutput = "There is a problem communicating with the CDC at this time." + " Please try again later."; // Create the plain text output SsmlOutputSpeech outputSpeech = new SsmlOutputSpeech(); outputSpeech.setSsml("<speak>" + speechOutput + "</speak>"); return SpeechletResponse.newTellResponse(outputSpeech); } else { StringBuilder speechOutputBuilder = new StringBuilder(); speechOutputBuilder.append(speechPrefixContent); speechOutputBuilder.append(speechOutput); speechOutputBuilder.append(askForNextStep); speechOutput = speechOutputBuilder.toString(); System.out.println("speechOutput FINAL: " + speechOutput); StringBuilder cardOutputBuilder = new StringBuilder(); cardOutputBuilder.append(cardPrefixContent); cardOutputBuilder.append(askForNextStep); // Create the Simple card content. SimpleCard card = new SimpleCard(); card.setTitle(cardTitle); card.setContent(cardOutputBuilder.toString()); SpeechletResponse response = newAskResponse("<speak>" + speechOutput + "</speak>", true, repromptText, false); response.setCard(card); return response; } } @Override public void onSessionEnded(final SessionEndedRequest request, final Session session) throws SpeechletException { log.info("onSessionEnded requestId={}, sessionId={}", request.getRequestId(), session.getSessionId()); // any session cleanup logic would go here } /** * Function to handle the onLaunch skill behavior. * * @return SpeechletResponse object with voice/card response to return to the user */ private SpeechletResponse getWelcomeResponse() { String speechOutput = "Influenza Info uses information provided by the Centers for Disease Control to tell you " + "the level of influenza in any state. Influenza Info can also get you the list of states where the CDC has classified " + "the level of influenza as widespread. To find out the how prevalent influenza infections are in any state say something like, ." + "get me the state influenza report for Florida. To get a list of states where influenza is widespread say, ." + "which states have widespread influenza?"; // If the user either does not reply to the welcome message or says something that is not // understood, they will be prompted again with this text. String repromptText = "Influenza Information can give you the states where the CDC reports that the influenza is widespread." + "To get this report say something like, where is the influenza or in which states is the " + "influenza widespread. Influenza Information can also tell you the prevelance of Flu in any state as " + "reported by the CDC. Ask for this by saying, give me the influenza report for Florida or " + "what's the influenza prevalence in California."; return newAskResponse(speechOutput, false, repromptText, false); } /** * Function to accept an intent containing a State slot (string representing a US State) and return the String * representing the ENUM value of that slot value. The State ENUM class accepts three formats for input 1) the * full name of the state in all caps, 2) the uppercase two letter code example: GA, 3) the uppercase two letter * code preceded by US- example: US-GA * * @param intent * the intent object containing the state slot * @return the States ENUM representation of that slot state value */ private static String convertStateIntentToStateEnum(Slot stateSlot) throws NullPointerException { String stateSlotString = stateSlot.getValue().toString().toUpperCase(); log.info("stateSlotString" + stateSlotString); if (!stateSlotString.isEmpty()) { String state = States.parse(stateSlotString).toString().toUpperCase(); state = state.replace("_", " "); log.info("state" + state); return state; } else { return stateSlot.getValue().toString().toUpperCase(); } } /** * Wrapper for creating the Ask response from the input strings. * * @param stringOutput * the output to be spoken * @param isOutputSsml * whether the output text is of type SSML * @param repromptText * the reprompt for if the user doesn't reply or is misunderstood. * @param isRepromptSsml * whether the reprompt text is of type SSML * @return SpeechletResponse the speechlet response */ private static SpeechletResponse newAskResponse(String stringOutput, boolean isOutputSsml, String repromptText, boolean isRepromptSsml) { OutputSpeech outputSpeech, repromptOutputSpeech; if (isOutputSsml) { outputSpeech = new SsmlOutputSpeech(); ((SsmlOutputSpeech) outputSpeech).setSsml(stringOutput); } else { outputSpeech = new PlainTextOutputSpeech(); ((PlainTextOutputSpeech) outputSpeech).setText(stringOutput); } if (isRepromptSsml) { repromptOutputSpeech = new SsmlOutputSpeech(); ((SsmlOutputSpeech) repromptOutputSpeech).setSsml(repromptText); } else { repromptOutputSpeech = new PlainTextOutputSpeech(); ((PlainTextOutputSpeech) repromptOutputSpeech).setText(repromptText); } Reprompt reprompt = new Reprompt(); reprompt.setOutputSpeech(repromptOutputSpeech); return SpeechletResponse.newAskResponse(outputSpeech, reprompt); } }