Kohei Nozaki's blog

Enabling RequestDumpingHandler of Undertow

Kohei Nozaki — Fri, 20 Mar 2015 08:01:44 +0000

Tested with WildFly 8.2.0.Final. Issue following command via jboss-cli and restart the server:

/subsystem=undertow/configuration=filter/custom-filter=request-dumper:add(class-name=io.undertow.server.handlers.RequestDumpingHandler, module=io.undertow.core)
/subsystem=undertow/server=default-server/host=default-host/filter-ref=request-dumper:add

Following log will be dumped to the console:

----------------------------REQUEST---------------------------
               URI=/batcheetest/jbatch/batchee/execution/start/myjob
 characterEncoding=null
     contentLength=95
       contentType=[application/json]
            header=Accept=*/*
            header=Content-Type=application/json
            header=Content-Length=95
            header=User-Agent=curl/7.30.0
            header=Host=localhost:8080
            locale=[]
            method=POST
          protocol=HTTP/1.1
       queryString=
        remoteAddr=/127.0.0.1:57668
        remoteHost=localhost
            scheme=http
              host=localhost:8080
        serverPort=8080
--------------------------RESPONSE--------------------------
     contentLength=-1
       contentType=application/json
            header=Connection=keep-alive
            header=X-Powered-By=Undertow/1
            header=Server=WildFly/8
            header=Transfer-Encoding=chunked
            header=Content-Type=application/json
            header=Date=Fri, 20 Mar 2015 07:58:13 GMT
            status=200
==============================================================

I’m disappointed that there is no dump of request body :(

References

http://stackoverflow.com/questions/26715552/dump-http-requests-in-wildfly-8

Disabling color escape sequences in WildFly's console logging for IDE

Kohei Nozaki — Wed, 18 Mar 2015 02:31:20 +0000

I’m using IntelliJ IDEA for developing Java EE applications on WildFly. its built-in WildFly console appears as follows:

...
[0m11:20:28,608 INFO  [org.jboss.as.server] (Controller Boot Thread) JBAS015888: Creating http management service using socket-binding (management-http)
[0m[0m11:20:28,625 INFO  [org.xnio] (MSC service thread 1-9) XNIO version 3.3.0.Final
[0m[0m11:20:28,631 INFO  [org.xnio.nio] (MSC service thread 1-9) XNIO NIO Implementation Version 3.3.0.Final
...

You can see strange characters in the head of every lines. they are color escape sequences that works fine with terminal emulators but not for IntelliJ IDEA’s console output. to disable color escape sequences, issue following command in jboss-cli:

/subsystem=logging/console-handler=CONSOLE:write-attribute(name=named-formatter, value=PATTERN)

Now strange characters disappeared from IntelliJ IDEA’s console as follows:

...
2015-03-18 11:26:11,800 INFO  [org.jboss.as.server] (Controller Boot Thread) JBAS015888: Creating http management service using socket-binding (management-http)
2015-03-18 11:26:11,812 INFO  [org.xnio] (MSC service thread 1-4) XNIO version 3.3.0.Final
2015-03-18 11:26:11,817 INFO  [org.xnio.nio] (MSC service thread 1-4) XNIO NIO Implementation Version 3.3.0.Final
...

Deploying an application to WildFly with Ant + Cargo

Kohei Nozaki — Wed, 4 Mar 2015 07:49:33 +0000

I created an Ant script which deploys an application to WildFly through ssh tunnel. it creates ssh tunnel using Ant’s sshtunnel target. the script works well with a Jenkins job.

https://github.com/lbtc-xxx/ant-cargo-wildfly

Setting longer startup / shutdown timeout to wildfly-init-redhat.sh

Kohei Nozaki — Fri, 27 Feb 2015 06:27:03 +0000

I’m using bin/init.d/wildfly-init-redhat.sh to operate WildFly instance via service command on CentOS. it has some timeout defaults as follows:

if [ -z "$STARTUP_WAIT" ]; then
        STARTUP_WAIT=30
fi

if [ -z "$SHUTDOWN_WAIT" ]; then
        SHUTDOWN_WAIT=30
fi

If startup or shutdown takes longer than 30 seconds, the service commands will stop waiting and finished. this brings trouble to some automation mechanism such as shell scripts for deployment on cheaper environment. these variables can be set more longer in /etc/default/wildfly.conf as follows.

## The amount of time to wait for startup
STARTUP_WAIT=1800

## The amount of time to wait for shutdown
SHUTDOWN_WAIT=1800

There’s a template for this file at bin/init.d/wildfly.conf in WildFly distribution.

Building latest WildFly against latest Undertow

Kohei Nozaki — Wed, 25 Feb 2015 12:34:49 +0000

Today I had to make some modification to WildFly and Undertow. I’ve got stucked at build most, and had to make many try and error so I leave about it as note. I’m bad at using Maven so I spent most of time at making WildFly to reference latest Undertow package. I tried something like mvn clean install -Dversion.io.undertow=1.2.0.Beta9-SNAPSHOT in wildfly package but it didn’t work. eventually, I installed following packages into my Maven repository.

wildfly-core

Obtain same version as specified in version.org.wildfly.core property in pom.xml of wildfly package (it can be obtained using git tag).

The pom.xml file in this package keeps version.io.undertow property. wildfly package references this property so you need to modify it to desired version of Undertow. I modified it to 1.2.0.Beta9-SNAPSHOT before install it to local Maven repository. note that -Dmaven.test.skip=true makes build fail but -DskipTests=true might work.

undertow

This package doesn’t have annoying dependencies so you just need to make modification you desired and install to your local repository. keep version element in pom.xml and ensure that it is same to version.io.undertow property in wildfly-core.

wildfly

This package has dependency to wildfly-core. ensure that version.io.undertow in wildfly-core is desired one. the build will be made in wildfly/build/target/wildfly-9.0.0.Alpha2-SNAPSHOT.zip.

My final recipe is following:

Run mvn clean install for undertow (1.2.0.Beta9-SNAPSHOT). changes to java code here but no changes to pom here.
Run mvn clean install for wildfly-core (1.0.0.Alpha19). before install, I updated <version.io.undertow> to 1.2.0.Beta9-SNAPSHOT.
Run mvn clean install for wildfly (9.0.0.Alpha2-SNAPSHOT). changes to java code here but no changes to pom here.

Tips about building WildFly

http://nekop.hatenablog.com/entry/20131203/1386049841

How to configure WildFly to use secure session cookie and httpOnly

Kohei Nozaki — Wed, 25 Feb 2015 00:00:25 +0000

Issue following command via jboss-cli:

/subsystem=undertow/servlet-container=default/setting=session-cookie:add(http-only=true,secure=true)

WildFly8.0.0CR1でサーブレットを動かしてみる

Kohei Nozaki — Mon, 20 Jan 2014 21:34:15 +0000

WildFly8でEclipseでサーブレットを書いてデプロイしてみます。

JavaEE7のプロジェクトを作る

新しいMavenプロジェクトを作ってJavaEE7のarchetypeを探しますがEE6のしか見つかりません。

ここにJavaEE7用の何かが存在するようなのでこれを使ってみたかったのですが、やり方がよくわかりませんでした...。仕方が無いので替わりになりそうなものを使います。「Configure」→「Add Remote Catalog」から新たなカタログ http://repo1.maven.org/maven2 を追加します。

もとの画面に戻ったら「javaee7」と入れてみます。すると「javaee7-essentials-archetype」というのが現れるのでこれを使って進めます。Nextを押すとしばらく何かのダウンロードが行われます。

適当に入力してFinish

右下に表示される処理中インジケータを眺めながらしばらく待つとプロジェクトが出来上がります。

サーブレットを作る

もはや何でも良いので超適当に

package com.example;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@WebServlet("/TestServlet")
public class TestServlet extends HttpServlet {
	protected void doGet(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		response.getWriter().write("Hello world");
	}
}

デプロイ

ServersのViewを開いてWildFlyを右クリックし「Add and Remove」を選びます

次に現れるウインドウで、つい先ほど作ったJavaEE7PracをAddして右側に移しFinishを押します

Consoleを見るとデプロイできました的なメッセージが出ているはず。確認したらブラウザで表示してみます。

自動デプロイさせる

方法1

htmlファイルなどはデフォルトで自動的に反映されるのですが、クラス等は追加の設定を入れないと自動デプロイが走りません。

Serversを開きます
WildFlyをダブルクリックします
画面下部の「Deployment」を選びます
Deploy project as compressed archivesにチェックを入れます

それでは自動デプロイの実験をしてみます。こんな感じに編集して保存してみます。びっくりマーク追加しただけです。保存してからコンソールを眺めているとデプロイしました的な文言が流れます。

ブラウザでリロードすると表示が変わり資源が更新されたことがわかります。

方法2

ここの設定を変更する方法もあります。静的コンテンツを頻繁に編集する場合はこっちの方がベターかと思われます。

正規表現のところをこういう感じにします。

\.jar|\.class$

参考文献

Full Publish required in Eclipse to realize cha... | Community