Create your own Camel Project in a second

mvn archetype:generate

choose org.apache.camel.archetypes:camel-archetype-java

Done!

Maven + eclipse + WTP

http://www.mkyong.com/maven/how-do-use-maven-to-create-a-dynamic-web-project-in-eclipse/

To put it simple:

mvn archetype:generate

Then select simple-webapp

mvn eclipse:eclipse -Dwtpversion=1.0

Then import into eclipse using "Existing maven project"

Build Simple Web Application with Eclipse

http://www.eclipse.org/webtools/community/tutorials/BuildJ2EEWebApp/BuildJ2EEWebApp.html

Mockit Chinese Resource

http://yesmeshtu2008-163-com.iteye.com/blog/573663

A very simple ZooKeeper Connection Test Program

Just to demonstrate how to use ZooKeeper API in a very simple way. Works as a HelloWorld program.

Just Try ZK's API

From:

http://www.slideshare.net/scottleber/apache-zookeeper
Slide 11/76


@Test
public void test() throws Exception {
String hosts = "192.168.119.139:2181";
int sessionTimeout = 100;

final CountDownLatch signal = new CountDownLatch(1);
ZooKeeper zk = new ZooKeeper(hosts, sessionTimeout, new Watcher() {

@Override
public void process(WatchedEvent event) {
if(event.getState() == Watcher.Event.KeeperState.SyncConnected) {
signal.countDown();
}
}

});

signal.await();
zk.close();
}

Another HelloWorld from GitHub

https://github.com/wdalmut/zookeeper-helloworld

Need to update the following things:

• dependency for zookeeper. GroupID is org.apache.zookeeper now.
• add maven-compiler-plugin if you need it.

FAQ: NumberFormatException?

• https://jira.talendforge.org/browse/TESB-1325
• http://xulingbo.net/?p=83

In a word: don't use "start"

netstat -plten

that's cool.
You need to run this command using root. Otherwise you will get things like this:

(No info could be read for "-p": geteuid()=21015 but you should be root.)

And you can't see the program name/PID column.

The Boy Scout Rule

http://programmer.97things.oreilly.com/wiki/index.php/The_Boy_Scout_Rule

There are many rules Uncle Bob advocates but don't make sense to me. But this one is absolutely something I will agree.