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JSF: h:inputText Validator vs custom Converter

Validator method

xhtml:

<h:inputText value="#{myBean.inputValue}" validator="#{myBean.validateInput}" />

Various JSF tips

Get named bean by EL from FacesContext

ELContext elCtx = FacesContext.getCurrentInstance().getELContext();
MyBean bean = (MyBean) elCtx.getELResolver().getValue(elCtx, null, "myBean");

Send custom AJAX error response:

JSF h:panelGroup with custom HTML tag

JSF tag h:panelGroup can be only:

a span (setting its attribute layout="span") or
a div (setting its attribute layout="block")

There are situations in which you would being able to choose another kind of HTML tag (i.e. to avoid inserting a span/div inside an ul/ol element or to comply with some CSS constraint that result from the usage of CSS/HTML frameworks as Bootstrap).

The following composite component simulates h:panelGroup behavior adding the possibility to set a custom tag.

/**
* Some credits to http://stackoverflow.com/a/18363307/771431
*/
public class MyBasicAuthFilter implements Filter {

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
    }

I wanted to switch from PHP 5.4 to PHP 5.6 without remove the older version from the machine.

yum install http://rpms.remirepo.net/enterprise/remi-release-7.rpm
yum install yum-utils
yum-config-manager --enable remi-php56
yum update
yum install php56 php56-php

In /etc/httpd/conf.modules.d you now should have 2 different files for configuring PHP: 10-php56-php.conf 10-php.conf Rename the oldest and restart the server.

In src/main/webapp/WEB-INF/web.xml add:

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">

    <!-- ... -->

    <resource-env-ref>
        <resource-env-ref-name>BeanManager</resource-env-ref-name>

dockerbash

Why?

When working on a Dockerfile I often need to open a bash inside the generated container in order to check what the Dockerfile has generated.

This requires 3 steps:

running docker ps
checking the container id that we need (usually based on the image name)

Android USB tethering with static IP address (fix broken tethering)

On the custom ROM I'm using (James Rom D500) there is something broken with DHCP setup, so, even if the USB tethering is active from phone settings, the computer will never receive a valid IP address.

These steps worked for me for setting up a static IP address:

Laptop configuration (from GUI)

Address: 192.168.42.121

	/**
	* Socket factory with keep alive setting.
	* For using with com.sun.jndi.ldap.LdapCtxFactory add it in the env Hastable:
	* env.put("java.naming.ldap.factory.socket", "yourpackage.KeepAliveSocketFactory");
	*/
	public class KeepAliveSocketFactory extends SocketFactory {

	@Override
	public Socket createSocket() throws IOException {
	Socket socket = new Socket();

	#!/bin/bash
	#
	# glassfish: Startup script for Glassfish Application Server.
	#
	# chkconfig: 3 80 05
	# description: Startup script for domain1 of Glassfish Application Server.

	ASADMIN="/home/glassfish/glassfish4/glassfish/bin/asadmin"
	USER="glassfish"