KlausBrunner
/ SimpleFuture.java
Created Nov 19, 2012
A very simple implementation of the Java Future interface, for passing a single value to some waiting thread. Uses a CountdownLatch to ensure thread safety and provide blocking-with-timeout functionality required by Future. Cancellation isn't supported.
View SimpleFuture.java
| public final class ResultFuture implements Future<Result> { | |
| private final CountDownLatch latch = new CountDownLatch(1); | |
| private Result value; | |
| @Override | |
| public boolean cancel(boolean mayInterruptIfRunning) { | |
| return false; | |
| } | |
| @Override |
KlausBrunner
/ JacksonStreamingBindingTest.java
Last active Mar 14, 2021
Incrementally binding JSON objects in an array (list) using Jackson.
View JacksonStreamingBindingTest.java
| package tv.xrm.test; | |
| import com.fasterxml.jackson.core.type.TypeReference; | |
| import com.fasterxml.jackson.databind.ObjectMapper; | |
| import java.util.*; | |
| public class JacksonStreamingBindingTest { |
KlausBrunner
/ counters.cql
Created Nov 20, 2012
creating and using a Cassandra counter column in CQL
View counters.cql
| -- creating and using a Cassandra counter column in CQL | |
| -- NOTE: this is CQL 2.0 syntax, it will NOT work with CQL 3 (for syntax reasons and because CQL 3.0 drops the very notion of dynamic columns...sigh) | |
| CREATE KEYSPACE test WITH strategy_class = 'SimpleStrategy' | |
| AND strategy_options:replication_factor = '1'; | |
| USE test; | |
| CREATE TABLE stats (KEY text PRIMARY KEY) WITH comparator=text AND default_validation=counter; |
View sshd_config
| # This is the sshd server system-wide configuration file. See | |
| # sshd_config(5) for more information. | |
| HostKey /etc/ssh/ssh_host_ed25519_key | |
| HostKey /etc/ssh/ssh_host_rsa_key | |
| ChallengeResponseAuthentication no | |
| UsePAM yes | |
| # Allow client to pass locale environment variables |
KlausBrunner
/ two-main-jars-pom.xml
Last active Feb 2, 2020
Creating two different executable JARs with dependencies from the same Maven project - same contents but different Main class in the manifest
View two-main-jars-pom.xml
| <plugin> | |
| <artifactId>maven-assembly-plugin</artifactId> | |
| <executions> | |
| <execution> | |
| <id>make-assembly1</id> | |
| <phase>package</phase> | |
| <goals> | |
| <goal>single</goal> | |
| </goals> |
KlausBrunner
/ hexdump.java
Created Dec 10, 2019
Java byte array to hexdump. Format similar to default of hexdump(1).
View hexdump.java
| static String hexDump(byte[] bytes) { | |
| Formatter format = new Formatter(new StringBuilder()); | |
| for (int j = 0; j < bytes.length; j++) { | |
| if (j % 16 == 0) { | |
| format.format((j > 0 ? "\n" : "") + "%08X ", j); | |
| } | |
| format.format("%02X ", bytes[j]); | |
| } | |
| return format.toString(); | |
| } |
KlausBrunner
/ parent-from-existing.py
Created Aug 12, 2019
Generate a basic parent POM from all subfolders that contain Maven projects.
View parent-from-existing.py
| #!/usr/bin/env python3 | |
| import os | |
| import argparse | |
| parser = argparse.ArgumentParser(description='Generate a Maven parent pom for existing Maven projects in a folder.') | |
| parser.add_argument('root', default='.', nargs='?', | |
| help='root (parent) folder') | |
| parser.add_argument('--group', default='localhost', | |
| help='groupId for parent POM') |
KlausBrunner
/ hls-distances.html
Created Mar 21, 2019
Trivial example to calculate route distances from a fixed point to location(s) specified as user input, using HERE Location Services.
View hls-distances.html
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8" /> | |
| <script src="http://js.api.here.com/v3/3.0/mapsjs-core.js" type="text/javascript" charset="utf-8"></script> | |
| <script src="http://js.api.here.com/v3/3.0/mapsjs-service.js" type="text/javascript" charset="utf-8"></script> | |
| </head> |
KlausBrunner
/ gerrit-ssh.py
Created Dec 10, 2015
Accessing the gerrit SSH interface using Python (via ssh config entry)
View gerrit-ssh.py
| #!/usr/bin/env python | |
| import paramiko | |
| import sys | |
| import os | |
| client = paramiko.SSHClient() | |
| client.load_system_host_keys() | |
| client.set_missing_host_key_policy(paramiko.AutoAddPolicy()) | |
| config = paramiko.SSHConfig() |
KlausBrunner
/ wars-dist.xml
Created Dec 20, 2012
Maven assembly plugin descriptor to bundle all WAR dependencies into a zip file, including local resource files. This is useful when you don't use EARs, but still want to package several web applications into one big archive, plus any additional stuff (e.g. configuration files) needed for deployment.
View wars-dist.xml
| <assembly xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2" | |
| xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" | |
| xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2 http://maven.apache.org/xsd/assembly-1.1.2.xsd"> | |
| <!-- A Maven assembly plugin descriptor to bundle all WAR dependencies into a zip file, including local | |
| resource files. This is useful when you don't use EARs, but still want to package several web applications | |
| into one big archive, plus any additional stuff (e.g. configuration files) needed for deployment. --> | |
| <id>dist</id> | |
| <formats> | |
| <format>zip</format> |
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