Using a buffer to convert http request responses to string in Android - Not getting entire response

I'm developing an app that posts to a site and I'm trying to store the entity response as a string. However, the string only seems to contain a small portion of the response, roughly 35 lines or so. I'm wondering if it has something to do with buffer overflow but really I am not sure. My code is below:

static String getResponseBody(HttpResponse r开发者_如何学JAVAesponse) throws IllegalStateException, IOException{

    String content = null;
    HttpEntity entity = response.getEntity();

    if (entity != null) 
    {
        InputStream is = entity.getContent();
        BufferedReader br = new BufferedReader(new InputStreamReader(is));
        StringBuilder sb = new StringBuilder();
        String line = null;

        while ((line = br.readLine()) != null) 
        {
            if(isBlankString(line) == false)
            {
            sb.append(line + "\n");
            }
        }
        br.close();
        content = sb.toString();
    }
    return content; 

isBlankString just notes if a line doesn't contain any characters, as there's alot of blank lines in the response that were bugging me. I have the issue of not getting the whole response with or without this. Any body know what's going on or how to fix this?

Thanks

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In my application I use just single line to get response string from entity:

final String responseText =  EntityUtils.toString(response.getEntity());