outputFile = File.createTempFile("testUriUriStorer-", ".nt");
FileUtils.deleteQuietly(outputFile);
String outputFilename = outputFile.getAbsolutePath().replace("\\", "\\\\");
String query = "A = LOAD 'file:" + inputFilename + "' AS (s: chararray, o: chararray);";
pig.registerQuery(query);
pig.store("A", outputFilename,
"pignlproc.storage.UriStringLiteralNTriplesStorer(" +
"'http://mynamespace#hasValue', 'http://example.org/source#', 'en')");
assertTrue(outputFile.exists());
File outPart = new File(outputFile, "part-m-00000");
assertTrue(outPart.exists());