shelajev

@Entity
@NamedEntityGraph(name = "graph.AuthorBooks", attributeNodes = @NamedAttributeNode("books"))
public class Author implements Serializable {
…


EntityGraph graph = entityManager.getEntityGraph("graph.AuthorBooks");

List<Author> authorsWithBooks = entityManager
  .createQuery("SELECT DISTINCT a FROM Author a", Author.class)	 

shelajev

import java.util.ArrayList;
import java.util.List;

/**
 *
 * @author Märt Bakhoff
 */ 
public class GenerateGarbage {

  private static final String loremIpsum = "" +

shelajev

package org.shelajev;

import java.util.ArrayList;
import java.util.List;

public class LukasChallenge {

  public static void main(String[] args) {
    LukasChallenge lukasChallenge = new LukasChallenge();
    List<Pair> aaa = lukasChallenge.subPalindromes("ababa");

shelajev

package com.shelajev.updates;

import rubah.Rubah;

public class Component {

  private static DataHolder data = new DataHolder(0);

  public String wrangle(int i, String s) {
    Rubah.update("wrangle");

shelajev

$ js
> 1 + 2
3
> print(“undefined is not a function”)
undefined is not a function

shelajev

library(ggplot2)
data <<- numeric(100)
function(v) {
  svg()
  data <<- c(data[2:100], v)
  plot <- ggplot(data = data.frame(systemLoad = data, time = -99:0),
  aes(x=time, y=systemLoad, group=1)) +
  geom_line(color="orange") +
  expand_limits(x=0, y=0)
  print(plot)

shelajev

@Bean
public Context getGraalVMContext() {
  return Context.newBuilder().allowAllAccess(true).build();
}

shelajev

@Value(value = "classpath:plot.R")
private Resource rSource;

@Bean
Function<Double, String> getPlotFunction(@Autowired Context ctx)
throws IOException {
  Source source = Source.newBuilder("R", rSource.getURL()).build();
  return ctx.eval(source).as(Function.class);
}

shelajev

@RequestMapping(value = "/load", produces = "image/svg+xml")
public ResponseEntity<String> load() {
  HttpHeaders responseHeaders = new HttpHeaders();
  responseHeaders.set("Refresh", "1");
  return new ResponseEntity<String>(
     plotFunction.apply(
       ManagementFactory.getOperatingSystemMXBean()
                        .getSystemLoadAverage()),
     responseHeaders,
     HttpStatus.OK);

shelajev

public class LogHolder {
private static final Log LOG =   
                   LogFactory.getLog(SpringRApplication.class);
public static void log(double value, Object... args) {
  LOG.info(String.format("Logging (value = %s): %s", value,        
                                        Arrays.toString(args)));
  }
}