How can I create an empty dummy HttpResponse

Question

I am using org.apache.http.HttpResponse

I want to create an empty dummy resposne, I am going to use this to return when errors occur instead of passing back null.

I tried to create one and it has lost of weird params. Can someone tell me how to create one.

Answer 1

This version add the entity content and is a little bit more compact:

import org.apache.http.HttpResponse;
import org.apache.http.HttpVersion.HTTP_1_1;
import org.apache.http.entity.ContentType.TEXT_HTML;
import org.apache.http.entity.StringEntity;
import org.apache.http.message.BasicHttpResponse;
import org.springframework.http.HttpStatus;

public static HttpResponse buildResponse(HttpStatus status, String text){
    
       HttpResponse response = new BasicHttpResponse(HTTP_1_1, status.value(), status.reasonPhrase);
       response.setEntity(new StringEntity(text, TEXT_HTML));
       return response;
    }

Note that I am using the Spring HttpStatus just for my convenience but may be changed with parameters

Answer 2

Depending on what version of commons you're using, you might want to try DefaultHttpResponseFactory. This is the way that the library creates some of it's responses internally so it may or may not serve your purposes.

import org.apache.http.HttpStatus;
import org.apache.http.HttpResponse;
import org.apache.http.HttpResponseFactory;
import org.apache.http.HttpVersion;
import org.apache.http.impl.DefaultHttpResponseFactory;
import org.apache.http.message.BasicStatusLine;

HttpResponseFactory factory = new DefaultHttpResponseFactory();
HttpResponse response = factory.newHttpResponse(new BasicStatusLine(HttpVersion.HTTP_1_1, HttpStatus.SC_OK, null), null);

Answer 3

Just implement HttpResponse with no-op methods.