spark-java

I'm playing around with Spark (the Java web framework, not Apache Spark). I find it really nice and easy to define routes and filters, however I'm looking to apply a native servlet filter to my routes and can't seem to find a way to do that. More specifically, I would like to use Jetty's DoSFilter which is a servlet filter (contrast with the Spark Filter definition). Since Spark is using embedded Jetty, I don't have a web.xml to register the DoSFilter. However, Spark doesn't expose the server instance so I can't find an elegant way of registering the filter programatically either. Is there a

public class SparkDemo { @SuppressWarnings({ "resource" }) public static void main(String[] args) { SparkConf conf = new SparkConf().setAppName("Spark APP").setMaster("spark://xxx.xxx.xxx.xx:7077"); JavaSparkContext sc = new JavaSparkContext(conf); JavaRDD<String> lines = sc.textFile("/Users/mchaurasia/file.txt"); JavaRDD<String> words = lines.flatMap((String s) -> { return Arrays.asList(s.split(" ")); }); JavaPairRDD<String, Integer> pairs = words.mapToPair((String s) -> { return new Tuple2<String, Integer>(s, 1); }); JavaPairRDD<String, Integer> counts = pairs.reduceByKey((a, b) -> a + b);

I am new to sparkjava and like it overall. However, do new routes/endpoints have to be defined in the main method? For any significant web application, this will result in a very long main method or I need to have multiple main methods (and therefore split server resources among multiple instances). These two sparkjava documentation pages seem to define routes in the main method: http://sparkjava.com/documentation.html#routes and here http://sparkjava.com/documentation.html#getting-started . Is there another way to do this that I'm not seeing? Cursory google searching hasn't shown me a better

I am using spark to develop a web application; the problem occurs when I want to upload a file: public final class SparkTesting { public static void main(final String... args) { Spark.staticFileLocation("/site"); Spark.port(8080); Spark.post("/upload", (request, response) -> { final Part uploadedFile = request.raw().getPart("uploadedFile"); final Path path = Paths.get("/tmp/meh"); try (final InputStream in = uploadedFile.getInputStream()) { Files.copy(in, path); } response.redirect("/"); return "OK"; }); } } But I get this error: [qtp509057984-36] ERROR spark.webserver.MatcherFilter - java

I'm new to sparkjava. I want to read my request params using spark java but I'm not able to find the correct syntax. please help me out. Below is my route method and the client call to it: my client request url: /smartapp/getDataViewModelConfig?collId=123' Route Method: get("smartapp/getDataViewModelConfig/:id", "application/json", (request, response) -> { String id = request.params(":id"); } The 'id' field is returning null here. Any suggestions as to what went wrong here? Laercio Metzner If you have to work with an URL like /smartapp/getDataViewModelConfig?collId=123 you have to deal with

How can i use custom SSLContext and custom SSLServerSocketFactory in spark-java framework? I've searched in SparkServerImpl but have no idea how to inject sslfactory, any suggestions? You can pass directly into Spark the parameters of the keystore, like this: Spark.secure(keyStorePath, keyStorePassword, trustStorePath, trustStorePassword); Those are all strings, and for example, the keystore values could be: String keyStorePath = "/home/user/keys/private-key.jks"; String keyStorePassword = "password"; This way, Spark will have the parameters to create the SslContextFactory inside, as you can