HANA XSC Simple TA Service

simpleTA.xsjs

function sentiment(sentiment) {
    if (sentiment && sentiment.label) {
        switch(sentiment.label) {
            case "StrongNegativeSentiment":
            case "StrongNegativeEmoticon":
                return {
                    startIndex: sentiment.offset,
                    endIndex: sentiment.offset + sentiment.text.length,
                    text: sentiment.text,
                    type: "NEGATIVE",
                    strong: true
                };
            case "WeakNegativeSentiment":
            case "WeakNegativeEmoticon":
                return {
                    startIndex: sentiment.offset,
                    endIndex: sentiment.offset + sentiment.text.length,
                    text: sentiment.text,
                    type: "NEGATIVE",
                    strong: false
                };
            case "StrongPositiveSentiment":
            case "StrongPositiveEmoticon":
                return {
                    startIndex: sentiment.offset,
                    endIndex: sentiment.offset + sentiment.text.length,
                    text: sentiment.text,
                    type: "POSITIVE",
                    strong: true
                };
            case "WeakPositiveSentiment":
            case "WeakPositiveEmoticon":
                return {
                    startIndex: sentiment.offset,
                    endIndex: sentiment.offset + sentiment.text.length,
                    text: sentiment.text,
                    type: "POSITIVE",
                    strong: false
                };
            case "NeutralSentiment":
            case "NeutralEmoticon":
                return {
                    startIndex: sentiment.offset,
                    endIndex: sentiment.offset + sentiment.text.length,
                    text: sentiment.text,
                    type: "NEUTRAL",
                    strong: false
                };
        }
    }
    return null;
}

function notNull(object) {
    return object !== null;
}

var TA = new $.text.analysis.Session({configuration: "sap.hana.ta.config::EXTRACTION_CORE_VOICEOFCUSTOMER.hdbtextconfig"});

var result = TA.analyze({
    inputDocumentText: $.request.parameters.get("text") || ""
});

var sentiments = result.entities.map(sentiment).filter(notNull);

$.response.contentType = "application/json";
$.response.setBody(JSON.stringify(sentiments));
$.response.status = $.net.http.OK;