How can I download file with HTTPBuilder (HttpClient)?

Question

I need to download and save file. I'm trying to use HTTPBuilder because it has simple API and supports cookies. I have written following code:

//create new httpBuilder and set cookies def httpBuilder = ... def file = ... def inputStream = httpBuilder.get(uri: urlData.url, contentType: ContentType.BINARY) FileUtils.copyInputStreamToFile(inputStream)

How can I check that file is correctly downloaded (not only the part of the file)?
For large files exception java.lang.OutOfMemoryError: Java heap space occurs on line def inputStream = httpBuilder.get... How can I solve it?
May be it's not best choise to download files by HTTPBuilder. What is the best way to download file with cookies support?

I don't know much about httpbuilder, but it seems the stream is being loaded into memory, can you check that? — Will
– Will, Commented Nov 28, 2012 at 14:07
Yep, looks like httpBuilder loads stream in memory in any case - if you are using clousure api or simple api as above. I have solved it with httpBuilder.client.execute — fedor.belov
– fedor.belov, Commented Nov 28, 2012 at 16:18

CodeMonkey · Accepted Answer · 2013-11-16 20:30:37Z

Have you tried HttpBuilder GET request with custom response-handling logic:

httpBuilder.get(uri: urlData.url, contentType: ContentType.BINARY) { resp, inputStream -> FileUtils.copyInputStreamToFile(inputStream) }

If HttpBuilder has problems which is strange then you can always use the tried and true Apache HttpClient API which has full cookie support.

HttpGet req = new HttpGet(url); HttpClient client = new DefaultHttpClient(); HttpResponse response = client.execute(req); // validate response code, etc. InputStream inputStream = response.getEntity().getContent();

You can add a localContext when executing the request to manage cookies.

Yes, I have solved this problem with HttpClient. Don't use HttpBuilder to download large files

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