jkschneider

package org.openrewrite.java;

import lombok.SneakyThrows;
import org.openrewrite.ExecutionContext;
import org.openrewrite.Recipe;
import org.openrewrite.SourceFile;
import org.openrewrite.TreeVisitor;
import org.openrewrite.internal.ListUtils;
import org.openrewrite.java.search.FindAnnotations;
import org.openrewrite.java.search.UsesType;

jkschneider

package org.openrewrite.java;

import org.openrewrite.ExecutionContext;
import org.openrewrite.Recipe;
import org.openrewrite.SourceFile;
import org.openrewrite.Tree;
import org.openrewrite.internal.ListUtils;
import org.openrewrite.java.tree.J;
import org.openrewrite.marker.Markers;
import org.openrewrite.text.PlainText;

jkschneider

public class PrimeNumberChecker {
  // could use Gauge.builder(..) instead if you want description text and base units
  private final AtomicLong highestPrimeNumberSoFar = Metrics.gauge("highestPrimeNumberSoFar", new AtomicLong(2));

  public String checkIfPrime(long number) {
      ...
      return highestPrimeNumberSoFar.compareAndExchange(Math.min(highestPrimeNumberSoFar.get(), number), number) +
        " is prime.";
  }
}

jkschneider

WebClient client = WebClient.builder()
      .baseUrl("http://" + args[0])
      .build();

Flux
  .generate(AtomicLong::new, (state, sink) -> {
    long i = state.getAndIncrement();
    sink.next(i);
    return state;
  })

jkschneider

@Configuration
public class PaneraMetricsAutoConfiguration {
  private final Logger logger = LoggerFactory.getLogger(PaneraMetricsAutoConfiguration.class);
​
  @Value("${spring.application.name:unknown}")
  private String appName;
​
  @Value("${HOSTNAME:unknown}")
  private String host;
​

jkschneider

API utilization

Guava famously deprecates in one minor release and removes deprecations in the next, but it isn't uncommon to see Guava version divergences greater than two minor releases in a large dependency graph in application code. Latest or nearest version conflict resolution both lead to breaking consequences because different parts of the dependency graph make different assumptions.

Semantic incompatibility leads to a similar problem as the Guava problem.

Developers on core libraries or organization-wide curators of third-party dependencies may wish to peek at API utilization to determine the impact of an impending change.

Security teams may wish to peek at API utilization to determine where known vulnerable methods are in use.

jkschneider

# This file is intended to serve as a master configuration for a Spinnaker
# deployment. Customizations to the deployment should be made in another file
# named "spinnaker-local.yml". The distribution has a prototype called
# "default-spinnaker-local.yml" which calls out the subset of attributes of
# general interest. It can be copied into a "spinnaker-local.yml" to start
# with. The prototype does not change any of the default values here, it just
# surfaces the more critical attributes.

global:

jkschneider

{
  "userId": 1,
  "id": 1,
  "title": "delectus aut autem",
  "completed": false
}

jkschneider

---
applications:
- name: metricsdemo
  routes:
  - route: metricsdemo.apps.atherton.cf-app.com

jkschneider

plugins {
	id 'java'
	id 'com.jfrog.artifactory' version '4.9.0'
	id 'org.springframework.boot' version '2.1.3.RELEASE'
	id 'io.spring.dependency-management' version '1.0.7.RELEASE'
	id 'nebula.maven-publish' version '9.5.0'
	id 'nebula.release' version '9.2.0'
	id 'nebula.info' version '5.0.0'
}