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Ben Christensen benjchristensen

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benjchristensen / index.html
Created May 2, 2012 19:34
Simple Line Graph using SVG and d3.js
<html>
<head>
<title>Simple Line Graph using SVG and d3.js</title>
<script src="http://mbostock.github.com/d3/d3.v2.js"></script>
<style>
/* tell the SVG path to be a thin blue line without any area fill */
path {
stroke: steelblue;
stroke-width: 1;
fill: none;
@benjchristensen
benjchristensen / DebounceBuffer.java
Last active March 1, 2024 15:46
DebounceBuffer: Use publish(), debounce() and buffer() together to capture bursts of events.
import java.util.List;
import java.util.concurrent.TimeUnit;
import rx.Observable;
import rx.Subscriber;
import rx.schedulers.Schedulers;
public class DebounceBuffer {
public static void main(String args[]) {
@benjchristensen
benjchristensen / CallbackB.java
Last active January 16, 2024 15:09
CallbackB.java Example of using Callbacks for nested calls showing the incidental complexity that results and how eventually the asynchronous paths need to be synchronized together.
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicReference;
public class CallbackB {
/**
@benjchristensen
benjchristensen / FuturesB.java
Last active December 12, 2023 09:36
FuturesB.java Example of using Futures for nested calls showing how it blocks inefficiently.
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Future;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
@benjchristensen
benjchristensen / index.html
Last active December 7, 2023 13:39
Interactive Line Graph (D3)
<!--
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@benjchristensen
benjchristensen / JavadocFilter.java
Created November 30, 2011 20:29
Doclet for filtering public classes from Javadoc
import java.lang.reflect.Array;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.util.ArrayList;
import java.util.List;
import com.sun.javadoc.Doc;
import com.sun.javadoc.DocErrorReporter;
@benjchristensen
benjchristensen / FuturesA.java
Last active November 13, 2022 18:34
FuturesA.java Simple example of using Futures.
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Future;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
public class FuturesA {
public static void run() throws Exception {
@benjchristensen
benjchristensen / EventBus.java
Last active February 24, 2022 03:02
EventBus.java
import rx.Observable;
import rx.subjects.PublishSubject;
import rx.subjects.SerializedSubject;
import rx.subjects.Subject;
/**
* Simple pass-thru event bus with error handling and reconnect.
*/
public class EventBus {
@benjchristensen
benjchristensen / TestRandom.java
Created January 5, 2012 17:33
Simple performance test of Math.random() for comparing machines
public class TestRandom {
public static void main(String args[]) {
long start = System.currentTimeMillis();
for (int i = 0; i < 100000000; i++) {
Math.random();
}
System.out.println("Math.random() Time: " + (System.currentTimeMillis() - start) + "ms");
start = System.currentTimeMillis();
@benjchristensen
benjchristensen / index.html
Created August 16, 2011 03:21
Animated Line Graphs / Sparklines using SVG Path and d3.js
<html>
<head>
<title>Animated Sparkline using SVG Path and d3.js</title>
<script src="http://mbostock.github.com/d3/d3.v2.js"></script>
<style>
/* tell the SVG path to be a thin blue line without any area fill */
path {
stroke: steelblue;
stroke-width: 1;
fill: none;