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WatsonAssistantServiceImpl.java
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WatsonAssistantServiceImpl.java
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package ro.alex.auth.service;
import java.util.List;
import javax.servlet.http.HttpSession;
import com.ibm.cloud.sdk.core.service.exception.NotFoundException;
import com.ibm.cloud.sdk.core.service.exception.RequestTooLargeException;
import com.ibm.cloud.sdk.core.service.exception.ServiceResponseException;
import com.ibm.cloud.sdk.core.service.security.IamOptions;
import com.ibm.watson.assistant.v2.Assistant;
import com.ibm.watson.assistant.v2.model.CreateSessionOptions;
import com.ibm.watson.assistant.v2.model.DialogRuntimeResponseGeneric;
import com.ibm.watson.assistant.v2.model.MessageInput;
import com.ibm.watson.assistant.v2.model.MessageOptions;
import com.ibm.watson.assistant.v2.model.MessageResponse;
import com.ibm.watson.assistant.v2.model.SessionResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
@Service
public class WatsonAssistantServiceImpl implements WatsonAssistantService {
// UPDATE IT !!!
private final String APIKEY = "";
private final String ASSISTANTID = "";
@Autowired
private HttpSession ses;
@Override
public String SendMessage(String text) {
String wSessionId;
String responseMessage = "";
try {
IamOptions iamOptions = new IamOptions.Builder().apiKey(APIKEY).build();
Assistant service = new Assistant("2019-02-28", iamOptions);
service.setEndPoint("https://gateway-lon.watsonplatform.net/assistant/api");
if (ses.getAttribute("wSessionId") == null) {
CreateSessionOptions soptions = new CreateSessionOptions.Builder(ASSISTANTID).build();
SessionResponse sresponse = service.createSession(soptions).execute().getResult();
wSessionId = sresponse.getSessionId();
ses.setAttribute("wSessionId", wSessionId);
} else {
wSessionId = (String) ses.getAttribute("wSessionId");
}
MessageInput input = new MessageInput.Builder().messageType("text").text(text).build();
MessageOptions options = new MessageOptions.Builder(ASSISTANTID, wSessionId).input(input).build();
MessageResponse response = service.message(options).execute().getResult();
System.out.println(response);
List<DialogRuntimeResponseGeneric> genericR = response.getOutput().getGeneric(); //.get(0).getText();
for (DialogRuntimeResponseGeneric item : genericR) {
responseMessage = responseMessage + item.getText();
}
return responseMessage;
} catch (NotFoundException e) {
System.out.println("Service returned status code " + e.getStatusCode() + ": " + e.getMessage());
// Handle Not Found (404) exception
} catch (RequestTooLargeException e) {
System.out.println("Service returned status code " + e.getStatusCode() + ": " + e.getMessage());
// Handle Request Too Large (413) exception
} catch (ServiceResponseException e) {
// Base class for all exceptions caused by error responses from the service
System.out.println("Service returned status code " + e.getStatusCode() + ": " + e.getMessage());
}
return null;
}
}