naaman

Hot Swapping With Maven, Jetty and IntelliJ

Based on Configuring Jetty, Maven, and Eclipse together with Hot Swap

I've always been a bit jealous when it comes to the Play! framework and the great dev mode they have for hot swapping classes at runtime. Jetty has a configuration setting, scanIntervalSeconds, that mimics this when working with a more traditional WAR, but does so by looking for changes to a file and restarting the server.

Fortunately, Jetty also provides the ability to rapidly test code with hot swapping. No more server restarts. The trick to getting hot swapping to work is to attach a remote debugger to your Jetty process. The following instructions outline how to do this in IntelliJ (tested with IDEA 10.5 CE).

Modify your jetty-maven-plugin to ignore the scan interval

1. Open your pom and locate the plugins section

isopov

import java.net.InetSocketAddress;
import java.util.concurrent.Executors;

import org.jboss.netty.bootstrap.ClientBootstrap;
import org.jboss.netty.bootstrap.ServerBootstrap;
import org.jboss.netty.buffer.ChannelBuffers;
import org.jboss.netty.channel.Channel;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.channel.ChannelPipeline;
import org.jboss.netty.channel.ChannelPipelineFactory;

carstenlenz

${retIt:newType(java.lang.Iterable)}<${iterable_type}> ${name:newName(retIt)} = ${itbls:newType(com.google.common.collect.Iterables)}.filter(${iterable}, new ${pred:newType(com.google.common.base.Predicate)}<${iterable_type}>() {
   @Override public boolean apply(${iterable_type} ${input}) {
       return ${false};
   }            
});

mikeyk

#! /usr/bin/env python

import redis
import random
import pylibmc
import sys

r = redis.Redis(host = 'localhost', port = 6389)
mc = pylibmc.Client(['localhost:11222'])

ctoestreich

@Grapes([
    @Grab('redis.clients:jedis:1.5.1'),
    @GrabConfig(systemClassLoader=true)
])
 
import redis.clients.jedis.*

performTest("unencoded", null) {n, e->
    n.toString()
}

woledzki

<?php
$rootPath = getenv('DASHBOARD_ROOT') ? getenv('DASHBOARD_ROOT') : __DIR__ . '/..';
require_once "{$rootPath}/dashboard.phar";

$kernel = new \Hoborg\Dashboard\Kernel($rootPath);
$kernel->setDefaultParam('conf', 'demo');
$kernel->handle(array_merge($_GET, $_POST));

kimble

package com.developerb.dropbot;

import com.developerb.dropbot.instrumentation.MethodInvocationTimingInterceptor;
import com.google.inject.AbstractModule;
import com.yammer.metrics.annotation.Timed;

import static com.google.inject.matcher.Matchers.annotatedWith;
import static com.google.inject.matcher.Matchers.any;

/**

dstroot

#!/bin/bash
echo "*****************************************"
echo " Based on information from Google"
echo " http://dev.chromium.org/spdy/spdy-best-practices"
echo "*****************************************"
sudo su
yum –y update
echo "*****************************************"
echo " Changing initcwnd and initrwnd"
echo " Step 1: check route settings."

kimble

package com.developerb.dropwizard;

import com.yammer.dropwizard.AbstractService;
import com.yammer.dropwizard.Service;
import com.yammer.dropwizard.cli.Command;
import com.yammer.dropwizard.config.Configuration;
import org.junit.rules.TestRule;
import org.junit.runner.Description;
import org.junit.runners.model.Statement;

suprememoocow

(function(XHR) {
    "use strict";
    
    var stats = [];
    var timeoutId = null;
    
    var open = XHR.prototype.open;
    var send = XHR.prototype.send;