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Michael Arrington You idiot
I am about to cause a firestorm, wear your flame suit. I do not know what Michael has been toting or ingesting but his latest essay titled Profit Maximization V. Survival Maximization is full of bullshit to be very blunt. Now, I am borrowing my thesis from Paul Allen and Bill Gates of Microsoft and applying to start ups.

Paul Allen and Bill Gates complete thesis is that being frugal in all areas during both peak economic times and low economic times provides opportunity cash during both situations to use to pursue innovations and market/business development Now before we tackle the start ups without a business model case lets think back. How many low economic times has Microsoft survived and open up new markets? Quite a few, right?

Okay, we have a nice start up with no business model lets say facebook. During peak economic times when VC and investment money in facebook is at an all time high you are being frugal in areas of development such as 1-n hiring and choosing low cost ways of technology implementations. Facebook did choose PHP and etc over Enterprise Java so they get a passing grade there. But in other areas they goofed up in not being frugal. that means now they will have less opportunity cash to finish market and business model development. Do not get me wrong they might still hvae enough but why risk that why not have as much as possible?

The problem is most start ups without business models do not have the running room of full adequate seed capital or funding even during peak economic times. Which means if they follow the facebook model without adjustments in areas of ebbing frugal they will not survive a market crash. the exact tiem to make survival frugal adjustments to enable a start up without a business model to survive during peak economic times not during the market crash.

Another case study in frugality during peak economic times to survive during low economic times is Mahalo! Jason Calacanis has composed many essays on that subject at Calacanis.com and Silicon Alley Insider. Mahalo will survive because it made frugal choices during peak economic times.

Most start ups tha will survive without a business model during this low economic times made macro event frugal choices during the peak economic times and to talk about the micro event frugal choices during low economic times without this context is just as bad information as a recent WSJ article on facebook. In my own defense during the MS buying Mahalo.com? rumor on FriendFeed during July how many fake journalists/analysts/cheerleaders were caught not analyzing information? Avery big one in fact and he still is not following my FriendFeed streamas a result, right? Please Michael Arrington I want to see yu engage the brain on these issues, please..as its damn f'ing important for every start up founder.

Service Factory and OSGI Logging Proposal
I've been doing some thinking lately about how can we log different bundles or the same bundle with different versions with different log level. Logging is an important part of any application thus Osgi gives developers logService to use when possible, but standard logging api (slf4j, log4j) are simple to use.

Why I'm asking this question :
1 -Working with osgi is a bit different regarding simple java programming: The same class can exist on many bundle with different version (different loader).
2- Making an upgrade on some bundles by changing the bundle versions : we should leave the two running versions if some other bundles are not updated to use the new milestone version.

I try here to present ServiceFactory utilities and I will present some brainstorming about possible logging enhancement :

ServiceFactory :

We create here three bundles :

1- logger : contains the api and impl
2- client 1 : using logger service with version 1, as stable implementation the log level is ERROR
3- client 2 : using logger service with version 2.0.0.m1 as unstable implementation the log level is Debug to catch all messages.

The Logger interface is :

and the implementation is

01 package com.jtunisie.osgi.logger;

      02 

      03 /**

      04  *

      05  * @author Slim OUERTANI

      06  */

      07 public interface Logger {

      08 

      09     public void log(Class clazz, Level level, String msg, Object... params);

      10 

      11     public enum Level {

      12 

      13         DEBUG, ERROR

      14     }

      15 }

the LogFactory class is draft factory : any milestone version will have a debug logger else error logger:

01 package com.jtunisie.osgi.logger.impl;

      02 

      03 

      04 import java.util.Dictionary;

      05 import org.osgi.framework.Bundle;

      06 import org.osgi.framework.ServiceFactory;

      07 import org.osgi.framework.ServiceRegistration;

      08 import org.osgi.framework.Version;

      09 import static org.osgi.framework.Constants.*;

      10 

      11 /**

      12  *

      13  * @author Slim OUERTANI

      14  */

      15 public  class Logger implements com.jtunisie.osgi.logger.Logger, ServiceFactory {

      16  

      17 

      18     @Override

      19     public void log(Class clazz, Level level, String msg, Object... params) {

      20     }

      21 

      22     @Override

      23     public Object getService(Bundle bundle, ServiceRegistration arg1) {

      24         Dictionary dictionary = bundle.getHeaders();

      25         Version version = Version.parseVersion((String) dictionary.get(BUNDLE_VERSION));

      26         String name = (String) dictionary.get(BUNDLE_NAME);

      27         return LoggerFactory.getLogger(name, version);

      28     }

      29 

      30     @Override

      31     public void ungetService(Bundle arg0, ServiceRegistration arg1, Object arg2) {

      32     }

      33 }

01 package com.jtunisie.osgi.logger.impl;

      02 

      03 import org.osgi.framework.Version;

      04 

      05 /**

      06  *

      07  * @author slim ouertani

      08  */

      09 class LoggerFactory {

      10 

      11     static com.jtunisie.osgi.logger.Logger getLogger(String name, Version version) {

      12 

      13         if (version.toString().contains("m")) {

      14             return new DebugLogger(name);

      15         } else {

      16             return new ErrorLogger(name);

      17         }

      18     }

      19 }

      20 

      21 package com.jtunisie.osgi.logger.impl;

      22 

      23 

      24 

      25 /**

      26  *

      27  * @author slim ouertani

      28  */

      29 class DebugLogger implements com.jtunisie.osgi.logger.Logger {

      30 

      31     private final String bundleName;

      32 

      33     


					
				

				
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