NEWA JSON API oddity

[bgowland]

This is obviously a coding problem on my part but I can't see what's wrong.

If I use Chrome Browser to connect to http://192.168.0.5:8866/public/Library/M...et/Artists I get a sensible result along the lines of...

Code:

{"Artists":[{"Artist":"AC-DC"},{"Artist":"Anastacia"},{...},{...}],"rtn":{"Error":false,"HTTPStatus":200,"Message":""}}

...but when I try to connect from nDroid with some simple HTTP GET code and log the result of reading the InputStream I see something like the following...

Code:

ssage":""}}t":"Guided By Voices"},{"Artist":"Garbage"},{"Artist":"Velvet Chain"},{...},{...}<many more but the rest is cut short>

The starting 'ssage' bit is clearly the end of the "rtn" name/value pair but it's overwriting the start of what should be the "Artists" JSON array. The code I'm using is as follows...

Code:

InputStream inStream = connHelper.getInputStream();
int contentLength = connHelper.getContentLength();

// The following line logs 7311
Log.d(TAG,  "getArtists() - getContentLength() : " + contentLength);

int totalRead = 0;
int len = -1;
// byte[] buffer = new byte[contentLength != -1 ? contentLength : 8192];
byte[] buffer = new byte[32768];
while ((len = inStream.read(buffer)) != -1)
    if (len != 0) {
        totalRead += len;
    }

// The following line also logs 7311
Log.d(TAG, "getArtists() - totalRead: " + totalRead);
result = HELPER_RESULT.FILE_DOWNLOAD_SUCCESS;

String jsonString = new String(buffer, 0, totalRead, "UTF-8");
Log.d(TAG, jsonString);

I've tried ISO-8859-1 as well as UTF-8 but the result is the same. Any ideas on what I'm missing?

Cheers,
Brian

[mvallevand]

What about a valid return of zero when the socked is blocked or a short read?

Martin

[bgowland]

What about a valid return of zero when the socked is blocked or a short read?

Martin

Yep, 'len' can be zero but it won't cause the 'while' loop to exit. I've done some more tests with extra logging and it seems it's taking 4 or 5 attempts to read the response which seems a bit odd for just 7311 bytes. That'll explain why the buffer was being overwritten though. I've now tried with...

Code:

BufferedReader response = new BufferedReader(new InputStreamReader(inStream));
String strLine = null;
while ((strLine = response.readLine()) != null) {
    sb.append(strLine);
    Log.d(TAG, "getArtists - sb.length() : " + sb.length());
}

...but that only does one readLine and tells me it has read 7307 bytes (characters?) but it seems to only read about half of what I see in the browser. Very odd.

[bgowland]

OK folks, just ignore this. A problem with Android logging (it was only showing a partial string when it actually had the full result) and a sneaky bug elsewhere (now fixed) meant I was thrown off at a tangent. Oh well, these things are sent to try us. Sigh.

Cheers,
Brian