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This repository was archived by the owner on Nov 10, 2022. It is now read-only.

java.lang.IllegalArgumentException: FieldDescriptor does not match message type. #35

@Kamatam

Description

@Kamatam

Hi
I am trying to build the following WebhookResponse payload using apis but getting into "FieldDescriptor does not match message type" issue. Please find the following code snippet and correct me if i am missing anything.

import com.google.cloud.dialogflow.v2.Intent;
import com.google.cloud.dialogflow.v2.Intent.Message;
import com.google.cloud.dialogflow.v2.Intent.Message.BasicCard;
import com.google.cloud.dialogflow.v2.Intent.Message.Image;
import com.google.cloud.dialogflow.v2.QueryResult;
import com.google.cloud.dialogflow.v2.WebhookResponse;
import com.google.protobuf.Descriptors.FieldDescriptor;
import com.google.protobuf.ListValue;
import com.google.protobuf.Struct;
import com.google.protobuf.Value;

/*
*
* http://googleapis.github.io/googleapis/java/all/latest/apidocs/index.html?com/google/cloud/dialogflow/v2/WebhookResponse.Builder.html
*
* {
"google": {
"expectUserResponse": true,
"richResponse": {
"items": [
{
"simpleResponse": {
"textToSpeech": "this is a simple response"
}
}
]
}
}
}
*/

public static void buildWebhookPayload(String apiResponse)
		throws ConversationException {
	
	
	Struct.Builder payload = Struct.newBuilder();
	Struct.Builder google = Struct.newBuilder();
	ListValue.Builder messageList = ListValue.newBuilder();
	Message.Builder message = Message.newBuilder();
	BasicCard.Builder basicCard = BasicCard.newBuilder();
	basicCard.setFormattedText(apiResponse); // api response, 
	basicCard.setTitle("Card title");
	Image.Builder image = Image.newBuilder();
	image.setImageUri("http://test.jpg");
	basicCard.setImage(image);
	message.setBasicCard(basicCard);
	
	FieldDescriptor fieldDesc = Message.getDescriptor()
			.findFieldByNumber(Message.BASIC_CARD_FIELD_NUMBER);	
	messageList.addValuesBuilder().setField(fieldDesc, message.build()); // java.lang.IllegalArgumentException: FieldDescriptor does not match message type.
	google.putFields("richResponse", Value.newBuilder().setListValue(messageList).build());
	payload.putFields("google", Value.newBuilder().setStructValue(google).build());
	WebhookResponse webhookResp = WebhookResponse.newBuilder().setPayload(payload).build();	
}

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