use of com.amazonaws.services.comprehend.model.DetectKeyPhrasesResult in project amplify-android by aws-amplify.
the class AWSComprehendService method fetchKeyPhrases.
private List<KeyPhrase> fetchKeyPhrases(String text, LanguageType language) throws PredictionsException {
// Skip if configuration specifies NOT key phrase
if (!isResourceConfigured(InterpretTextConfiguration.InterpretType.KEY_PHRASES)) {
return null;
}
DetectKeyPhrasesRequest request = new DetectKeyPhrasesRequest().withText(text).withLanguageCode(language.getLanguageCode());
// Detect key phrases from given text via AWS Comprehend
final DetectKeyPhrasesResult result;
try {
result = comprehend.detectKeyPhrases(request);
} catch (AmazonClientException serviceException) {
throw new PredictionsException("AWS Comprehend encountered an error while detecting key phrases.", serviceException, "See attached service exception for more details.");
}
// Convert AWS Comprehend's detection result to Amplify-compatible format
List<KeyPhrase> keyPhrases = new ArrayList<>();
for (com.amazonaws.services.comprehend.model.KeyPhrase comprehendKeyPhrase : result.getKeyPhrases()) {
KeyPhrase amplifyKeyPhrase = KeyPhrase.builder().value(comprehendKeyPhrase.getText()).confidence(comprehendKeyPhrase.getScore() * PERCENT).targetText(comprehendKeyPhrase.getText()).startIndex(comprehendKeyPhrase.getBeginOffset()).build();
keyPhrases.add(amplifyKeyPhrase);
}
return keyPhrases;
}
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