FM Radio with GNU Radio

This FM Radio project works with NooElec Hardware (NESDRMini2).

fm_radio
FM Radio project source: https://github.com/gnudeep/GNURadio/tree/master/FMRadio


How to setup VFS transport in WSO2 ESB with Samba

Environment: WS02 ESB 4.8.1, Samba 4.1.11, Ubuntu 14.10

Install Samba:

apt-get update
apt-get install samba

Configure two Samba shares:
/etc/samba/smb.conf

[SambaShareIn]
  path = /tmp/samba/in
  available = yes
  valid users = deep
  read only = no
  browseable = yes
  public = yes
  writable = yes
  guest ok = no

[SambaShareOut]
  path = /tmp/samba/out
  available = yes
  valid users = deep
  read only = no
  browseable = yes
  public = yes
  writable = yes
  guest ok = no

Set passwd for user deep:

smbpasswd -a deep

Enable VFS transport ( transport sender and listener ) in ESB:

$ESB_HOME/repository/conf/axis2/axis2.xml

<transportReceiver name="vfs" class="org.apache.synapse.transport.vfs.VFSTransportListener"/>

<transportSender name="vfs" class="org.apache.synapse.transport.vfs.VFSTransportSender"/>

Now you can create a VFS enabled ESB proxy:

<?xml version="1.0" encoding="UTF-8"?>
<proxy xmlns="http://ws.apache.org/ns/synapse"
       name="VFSSMB"
       transports="vfs"
       startOnLoad="true"
       trace="disable">
   <description/>
   <target>
      <endpoint>
         <address uri="http://localhost:9000/services/SimpleStockQuoteService"
                  format="soap12"/>
      </endpoint>
      <outSequence>
         <property name="transport.vfs.ReplyFileName"
                   expression="fn:concat(fn:substring-after(get-property('MessageID'), 'urn:uuid:'), '.xml')"
                   scope="transport"/>
         <property name="OUT_ONLY" value="true"/>
         <send>
            <endpoint>
               <address uri="vfs:smb://deep:deep@localhost/SambaShareOut/reply.xml"/>
            </endpoint>
         </send>
      </outSequence>
   </target>
   <parameter name="transport.PollInterval">5</parameter>
   <parameter name="transport.vfs.ActionAfterProcess">MOVE</parameter>
   <parameter name="transport.vfs.FileURI">vfs:smb://deep:deep@localhost/SambaShareIn</parameter>
   <parameter name="transport.vfs.MoveAfterProcess">vfs:smb://deep:deep@localhost/SambaShareOut</parameter>
   <parameter name="transport.vfs.MoveAfterFailure">vfs:smb://deep:deep@localhost/SambaShareOut</parameter>
   <parameter name="transport.vfs.FileNamePattern">.*\.xml</parameter>
   <parameter name="transport.vfs.ContentType">text/xml</parameter>
   <parameter name="transport.vfs.ActionAfterFailure">MOVE</parameter>
</proxy>

Now you can copy a SOAP message (test.xml) to location “smb://deep:deep@localhost/SambaShareIn” then ESB will poll for new files with extension “.xml” and send it to the give service. Response will by copy to the location “smb://deep:deep@localhost/SambaShareOut”

test.xml

<?xml version='1.0' encoding='UTF-8'?>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:wsa="http://www.w3.org/2005/08/addressing">
    <soapenv:Body>
        <m0:getQuote xmlns:m0="http://services.samples">
            <m0:request>
                <m0:symbol>IBM</m0:symbol>
            </m0:request>
        </m0:getQuote>
    </soapenv:Body>
</soapenv:Envelope>

How to set a Tomcat Filter in WSO2 Servers

Create your filter Jar and update the Carbon Tomcat web.xml to pick then new filter.

$CARBON_HOME/repository/conf/tomcat/carbon/WEB-INF/web.xml

<!-- Filter implementation -->
    <filter>
        <filter-name>SetCustomCookie</filter-name>
        <filter-class>com.piedpiper.CustomCookie</filter-class>
        <init-param>
            <param-name>mode</param-name>
            <param-value>DENY</param-value>
        </init-param>
    </filter>
<!-- Filter maping --> 
    <filter-mapping>
       <filter-name>SetCustomCookie</filter-name>
       <url-pattern>/*</url-pattern>
    </filter-mapping>

WSO2Con 2013 Landon

WSO2Con Landon

Event picture

wso2com


Arduino Uno and DHT11 basic temperature-humidity sensor

It is easy integrate DHT11 temperature and humidity sensor with Arduino Uno board. You can find enough resources in the web how to connect DHT11 with Arduino.

Measured temperature and humidity can publish to a Web via APIs supported by cosm.com.

You can find the working code in the Github.


WSO2 Carbon 4 Released.

Image

>WSO2 Carbon


How to build WSO2 Carbon 4.0.0 from source

First user has to build orbit related to Carbon 4.0.0.

Take a checkout from WSO2 carbon orbit 4.0.0 tag

svn co http://svn.wso2.org/repos/wso2/carbon/orbit/tags/4.0.0/

build useing maven3

mvn clean install

Now user can build the Carbon Kernel.

Take a check out from Carbon Kernel 4.0.0 tag.

svn co http://svn.wso2.org/repos/wso2/carbon/kernel/tags/4.0.0/

Now build using maven3.

mvn clean install