Details

Published: 02 July 2018

• javascript

While writing a simple JavaScript 'class', I wanted to toggle console.logs on for development and off for production.  Normally I would create a method to wrap console.log with a debug flag, such as:

function Awesome() {
   this.debug = true;

   this.log = function(msg) {
       if (this.debug) {
           console.log(msg);    // line 6
       }
   };   

   this.log('test');            // outputs line 6

   this.doStuff = function() {
       this.log('doing stuff'); // outputs line 6
   };
}

But the line number logged is always from within the log wrapper, this.log(),
which is not overly useful.
After some searching, I ran across this StackOverflow thread
https://stackoverflow.com/a/13815846/3893727
Basically, instead of using a logging wrapper, use a function alias.

function Awesome() {

   this.debug = true;   

   if (this.debug && window.console && console.log && console.warn && console.error) {

       this.console = {
           'log': window.console.log,
           'warn': window.console.warn,
           'error': window.console.error
       };

   } else {

       this.console = {
           'log': function(){},
           'warn': function(){},
           'error': function(){}
       };
   }

   this.console.log('test');            // outputs line 18

   this.doStuff = function() {
       this.console.log('doing stuff'); // outputs line 21
   };
}    

So now Awesome is awesome with logging showing the original line number,
which is helpful for debugging.

Of course, this.console could be renamed to anything, such as this.log, this.out, etc.
And you could add the log to the window namespace so it could be used by other functions, such as window.debug or window.log, etc

End of document. Thanks for reading.

Details

Published: 25 June 2018

• portable
• dbeaver

Open the file
C:\Portable\DBeaver\dbeaver.ini




Note: Notepad++ is a good free text editor, which can also be used portable
just download the zip or 7z version.

Add -vm and path to jvm lines in between the -showsplash and -vmargs lines
Make sure -vm is on one line, and the path to jvm.dll on the next line

..
-showsplash
-vm 
C:\Portable\jre-10.0.1\bin\client\jvm.dll
-vmargs
..

Create a shortcut to the DBeaver executable, which is in 
C:\Portable\DBeaver\



Add to the shortcut the parameter 
-data .dbeaver


This will create the DBeaver configuration in the same directory as the dbeaver.exe
C:\Portable\DBeaver\.dbeaver

Else, the DBeaver configuration will be created in your users home directory

Save and close and try to run DBeaver 

DBeaver should be up and running.

Query away!




Additional Information

Your company policies may prevent the auto downloads of required Java database drivers, which are often distributed as jar files (compressed java files)

Try to create a new database connection
Right click on the Database Navigation pane
Choose Create New Connection




Choose a database to connect to, 
in this example PostgreSQL (Postgres) was chosen

Click either Driver properties or Edit Driver Settings

If you are missing drivers or DBeaver cannot auto download them, DBeaver will notify you and the drivers will be in red



You can try setting the download proxy, if you have that information




If not, you can try to download the drivers directly.

For Postrgres, download the driver jar files from
https://jdbc.postgresql.org/download.html (42.2.2)
https://mvnrepository.com/artifact/net.postgis/postgis-jdbc-jtsparser/2.2.1 (2.2.1)
https://mvnrepository.com/artifact/net.postgis/postgis-jdbc/2.2.1 (2.2.1)

Note: These urls were found by searching for the driver name and version listed by DBeaver

Then click Add File for each jar file.
And also remove the prior entries.




That should get you Querying

End of document. Thanks for reading.

Details

Published: 28 May 2018

• portable
• netbeans

Then download the appropriate environment
If in doubt, All will suffice.



Netbeans Beta 9.0 (Apache)
http://netbeans.incubator.apache.org/download/nb90/nb90-beta.html
http://netbeans.incubator.apache.org




Extract either download to a directory, such as 
C:\Portable\Netbeans

Note: BandiZip is a good free archive (zip) program

To run Netbeans, you must have a Java JRE installed or a portable copy.
Note: This Blog post will show you how to create a portable copy of the Java JRE
Portable Java

If using a portable version of the Java JRE, 
Edit the Netbeans configuration file to tell Netbeans where your portable version of Java JRE is located.

Open the file
C:\Portable\Netbeans\etc\netbeans.conf




Note: Notepad++ is a good free text editor, which can also be used portable
just download the zip or 7z version.

Find the string (CTRL F or scroll and read)
#netbeans_jdkhome="/path/to/jdk"

And change it to where you installed/extracted the Java JRE

Such as
netbeans_jdkhome="C:\Portable\jre1.8.0_161"
Or
netbeans_jdkhome="C:\Portable\jre-10.0.1"

Note the removal of the comment tag #

Save and close and try to run Netbeans

Create a shortcut to the Netbeans executable, which is in 
C:\Portable\Netbeans\bin\




Choose netbeans64.exe if you are using a 64bit OS (most likely)

else choose netbeans.exe

Netbeans should be up and running.

Program away!




Additional information

Details

Published: 07 May 2018

• portable
• java