@Test(expected = FileNotFoundException.class)
public final void testNoSuchFile() throws Exception {
QueryIdFactory.reset();
SubQueryId schid = QueryIdFactory.newSubQueryId(QueryIdFactory.newQueryId());
QueryUnitId qid1 = QueryIdFactory.newQueryUnitId(schid);
QueryUnitId qid2 = QueryIdFactory.newQueryUnitId(schid);
File qid1Dir = new File(TEST_DATA + "/" + qid1.toString() + "/out");
qid1Dir.mkdirs();
File qid2Dir = new File(TEST_DATA + "/" + qid2.toString() + "/out");
qid2Dir.mkdirs();
Random rnd = new Random();
FileWriter writer = new FileWriter(qid1Dir + "/" + "testHttp");
String watermark1 = "test_" + rnd.nextInt();
writer.write(watermark1);
writer.flush();
writer.close();
writer = new FileWriter(qid2Dir + "/" + "testHttp");
String watermark2 = "test_" + rnd.nextInt();
writer.write(watermark2);
writer.flush();
writer.close();
InterDataRetriever ret = new InterDataRetriever();
HttpDataServer server = new HttpDataServer(NetUtils.createSocketAddr("127.0.0.1:0"), ret);
server.start();
ret.register(qid1, qid1Dir.getPath());
InetSocketAddress addr = server.getBindAddress();
assertDataRetrival(qid1, addr.getPort(), watermark1);
ret.unregister(qid1);
assertDataRetrival(qid1, addr.getPort(), watermark1);
}
private static void assertDataRetrival(QueryUnitId id, int port, String watermark)
throws IOException {
URL url = new URL("http://127.0.0.1:" + port + "/?qid=" + id.toString() + "&fn=testHttp");
BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));
String line = null;
boolean found = false;
while ((line = in.readLine()) != null) {
System.out.println(line);
if (line.equals(watermark)) found = true;
}
assertTrue(found);
in.close();
}