Posts by Year

2017

2016

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2014

Solr fix corrupted index using Lucene

4 minute read

A few days ago, a Solr server in our SolrCloud installation stopped unexpectedly. After examining solr.log file I spotted that it could not start again becau...

2013

Linux get hard disk statistics using Python

1 minute read

Today I wanted to collect disk usage information and send them to a remote server script. I used df command to collect disk usage information and Python to s...

Java send smtp mail using Gmail

2 minute read

Today I wanted to make a mail notification mechanism for a project of mine. After some web searching I stumbled upon a mkyong.com tutorial where he uses SMTP...

2012

Java String Util Class

10 minute read

Unfortunately, Java does not include a proper String manipulation class in its Java SE SDK. I really do not understand why… However, we see so many implement...

Windows 7 64bit ODBC Data sources

less than 1 minute read

Today I was trying to create and ODBC Data Source to a database using 32 bit database drivers. When I accessed ODBC Data Sources (32bit) from Control Panel, ...

Perl UTF-8 and Regular Expressions

less than 1 minute read

Today I wanted to explore Perl’s Unicode and regular expression capabilities, so I wrote down this simple script. It is quite amazing how simply Perl handles...

Java Calculate Orthodox Easter Date

1 minute read

Today I wondered if there is an algorithm to calculate the date of Orthodox Easter. After some searching in the web I found the algorithm and converted it to...

Java get file size and download using HTTP

4 minute read

Today I wanted to download a file using Http protocol but before that determine its size. First aff all I open an Http connection and get file size using Con...

PowerBuilder 10 Get and Set System Language

1 minute read

Today I wanted to retrieve the selected system language from PowerBuilder 10. To accomplish that I had to do some search in the web. After a long period I fo...

SQL Server Select Table information

less than 1 minute read

Today I am going to show you how do we obtain schema information in SQL Server 2005/2008. If you want to select all table names from a specific schema you ne...

SQL Server Truncate All Table Data

1 minute read

Today I want to truncate ( delete all table data) in a large SQL Server database instance. Plain delete statements are not going to work as there is a big nu...

Android pre-populated Database

5 minute read

Today I am going to show you how to create an android application which comes with a pre-populated database. The database file has to be stored in assets dir...

Object ArrayList Sort

less than 1 minute read

Let’s say we have a simple class called Person public class Person{ public String name; public int age; public Person(String name, int age) { this.nam...

Android get SQLite Library Version

less than 1 minute read

```java /** * get the version of the SQLite Library that is installed in the android * system * * @return version , for example 3.5.2 */ public ...

2011

Test1

less than 1 minute read

Welcome to WordPress.com. After you read this, you should delete and write your own post, with a new title above. Or hit Add New on the left (of the admin da...