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Welcome to Geoff Hayward's Weblog

Commenting on Java, JavaFX, Java EE, Joomla, and IoT.

I would like to share a Windows CMD script for adding MongoDB to a development environment. If you do development work that includes MongoDB on a Windows' PC then you should find this script helpful.

The script is designed to be used in application development environments as opposed to production. After MongoDB has been installed using the MongoDB installer this CMD script creates the MongoDB data folder and the log folder; it then adds MongoDB as a Windows Service using mongod by MongoDB. And then to save you from going into the Windows Service Tool script the script starts the MongoDB service for you. After you have run the script MongoDB will start each time your PC starts.

Note you will need to run this script as an administrator. This script assumed that the MongoDB installer added MongoDB's bin to the path during its install.

add-mongo-as-service.cmd

:: Name:     add-mongo-as-service.cmd
:: Purpose:  Adds MongoDB as a service to a Windows application development environment.
:: Note:     Run this script as an administrator.
:: Author:   www.geoffhayward.eu
:: Revision: Oct 2016 - initial version
@ECHO OFF

SETLOCAL ENABLEEXTENSIONS ENABLEDELAYEDEXPANSION

SET ME=%~n0
set MY_DIR=%~dp0

IF NOT EXIST "%USERPROFILE%\Mongo" MKDIR "%USERPROFILE%\Mongo"
IF NOT EXIST "%USERPROFILE%\Mongo\data" MKDIR "%USERPROFILE%\Mongo\data"
IF NOT EXIST "%USERPROFILE%\Mongo\logs" MKDIR "%USERPROFILE%\Mongo\logs"

mongod --dbpath %USERPROFILE%\Mongo\data --logpath=%USERPROFILE%\Mongo\logs\log.txt --install

NET START MongoDB

ENDLOCAL

Add the script to your source control to enjoy a more productive way of quickly setting up your environment.



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I was having trouble working out how to remove the WAR file of a failed deployment from WildFly using the JBoss CLI. I found that I could not simply type undeploy <WAR name> to remove a failed deployment from WildFly using the JBoss CLI. However, I did find that the following command let me remove a failed deployment and it's WAR file.

/deployment=<WAR name>:remove

After running this command I checked that the failed deployment and it's WAR file had been removed by running deployment-into and then by looking in the WildFly deployment's folder on the disc. This command had successfully removed the deployment and it's WAR file.



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I would like to share a simple Windows Batch script that I made. The Batch script changes the WildFly's logging level quickly and easily. It is as easy as running change-logging-level.cmd --file-debug --console-error

change-logging-level.cmd

:: Name:     change-logging-level.cmd
:: Purpose:  Set's the logging level to very low or the setting given as an argument
:: Author:   geoffhayward.eu
:: Revision: August 2016 - initial version
@ECHO OFF

SETLOCAL ENABLEEXTENSIONS ENABLEDELAYEDEXPANSION

SET NOPAUSE=true
SET ME=%~n0
SET SCRIPT=%TEMP%\%ME%-%DATE:/=-%.txt
SET CON_LEVEL=ERROR
SET FILE_LEVEL=ERROR

:parse_args
IF NOT "%~1"=="" (
		IF "%~1"=="--all" (
		SET CON_LEVEL=ALL
		SET FILE_LEVEL=ALL
	)
	IF "%~1"=="--console-all" (
		SET CON_LEVEL=ALL
	)
	IF "%~1"=="--file-all" (
		SET FILE_LEVEL=ALL
	)
	IF "%~1"=="--config" (
		SET CON_LEVEL=CONFIG
		SET FILE_LEVEL=CONFIG
	)
	IF "%~1"=="--console-config" (
		SET CON_LEVEL=CONFIG
	)
	IF "%~1"=="--file-config" (
		SET FILE_LEVEL=CONFIG
	)
	IF "%~1"=="--debug" (
		SET CON_LEVEL=DEBUG
		SET FILE_LEVEL=DEBUG
	)
	IF "%~1"=="--console-debug" (
		SET CON_LEVEL=DEBUG
	)
	IF "%~1"=="--file-debug" (
		SET FILE_LEVEL=DEBUG
	)
	IF "%~1"=="--error" (
		SET CON_LEVEL=ERROR
		SET FILE_LEVEL=ERROR
	)
	IF "%~1"=="--console-error" (
		SET CON_LEVEL=ERROR
	)
	IF "%~1"=="--file-error" (
		SET FILE_LEVEL=ERROR
	)
	IF "%~1"=="--fatal" (
		SET CON_LEVEL=FATAL
		SET FILE_LEVEL=FATAL
	)
	IF "%~1"=="--console-fatal" (
		SET CON_LEVEL=FATAL
	)
	IF "%~1"=="--file-fatal" (
		SET FILE_LEVEL=FATAL
	)
	IF "%~1"=="--fine" (
		SET CON_LEVEL=FINE
		SET FILE_LEVEL=FINE
	)
	IF "%~1"=="--console-fine" (
		SET CON_LEVEL=FINE
	)
	IF "%~1"=="--file-fine" (
		SET FILE_LEVEL=FINE
	)
	IF "%~1"=="--finer" (
		SET CON_LEVEL=FINER
		SET FILE_LEVEL=FINER
	)
	IF "%~1"=="--console-finer" (
		SET CON_LEVEL=FINER
	)
	IF "%~1"=="--file-finer" (
		SET FILE_LEVEL=FINER
	)
	IF "%~1"=="--finest" (
		SET CON_LEVEL=FINEST
		SET FILE_LEVEL=FINEST
	)
	IF "%~1"=="--console-finest" (
		SET CON_LEVEL=FINEST
	)
	IF "%~1"=="--file-finest" (
		SET FILE_LEVEL=FINEST
	)
	IF "%~1"=="--info" (
		SET CON_LEVEL=INFO
		SET FILE_LEVEL=INFO
	)
	IF "%~1"=="--console-info" (
		SET CON_LEVEL=INFO
	)
	IF "%~1"=="--file-info" (
		SET FILE_LEVEL=INFO
	)
	IF "%~1"=="--off" (
		SET CON_LEVEL=OFF
		SET FILE_LEVEL=OFF
	)
	IF "%~1"=="--console-off" (
		SET CON_LEVEL=OFF
	)
	IF "%~1"=="--file-off" (
		SET FILE_LEVEL=OFF
	)
	IF "%~1"=="--trace" (
		SET CON_LEVEL=TRACE
		SET FILE_LEVEL=TRACE
	)
	IF "%~1"=="--console-trace" (
		SET CON_LEVEL=TRACE
	)
	IF "%~1"=="--file-trace" (
		SET FILE_LEVEL=TRACE
	)
	IF "%~1"=="--warn" (
		SET CON_LEVEL=WARN
		SET FILE_LEVEL=WARN
	)
	IF "%~1"=="--console-warn" (
		SET CON_LEVEL=WARN
	)
	IF "%~1"=="--file-warn" (
		SET FILE_LEVEL=WARN
	)
	IF "%~1"=="--warning" (
		SET CON_LEVEL=WARNING
		SET FILE_LEVEL=WARNING
	)
	IF "%~1"=="--console-warning" (
		SET CON_LEVEL=WARNING
	)
	IF "%~1"=="--file-warning" (
		SET FILE_LEVEL=WARNING
	)
	SHIFT
	GOTO :parse_args
)


ECHO batch > %SCRIPT%
ECHO /subsystem=logging/console-handler=CONSOLE:change-log-level(level=%CON_LEVEL%)>> %SCRIPT%
ECHO /subsystem=logging/periodic-rotating-file-handler=FILE:change-log-level(level=%CON_LEVEL%)>> %SCRIPT%
ECHO run-batch >> %SCRIPT%

 
CALL %JBOSS_HOME%\bin\jboss-cli.bat -c --file="%TEMP%\%ME%-%DATE:/=-%.txt"

ENDLOCAL

This version of the Batch script is designed for Windows based dev environments, with WildFly as the target dev Java EE application container. The Batch script creates a simple JBoss CLI script and then sends that script into JBoss CLI. Note %JBOSS_HOME% needs to be set as an environment variable.

Calling this 'change-logging-level.cmd' script without any arguments will set WildFly's logging level down to 'ERROR' for both the console and file logging. Supplying arguments will override the default, for example change-logging-level.cmd --fine will immediately (except long running translations), set all logging to 'fine'.



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In an earlier post this year, 'Convert an ArrayList to an Array in Java', I commented on a way to convert an ArrayList to an Array in Java. Here is the example code from the earlier post.

List<String> results = new ArrayList<>();
...
results.toArray(new String[results.size()]);

This earlier way works fine, however it's old school. Here is the Java 8 Lambda way to convert an ArrayList to an Array:

Long[] longArray = longArrayList.stream()
    .map(Long::new)
    .toArray(Long[]::new);

This example works by mapping a new object for each item in the ArrayList's stream to the new stream, and then collecting that stream as an array.



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I am very happy to be attending Devoxx Poland 2016; I enjoyed Devoxx Poland last year very much. As well as Krakow.

This year I am looking forward to talks on: Java 9 Flow API; Angular 2; Microservices; lambdas; and many other topics. But, worryingly there does not seem to be a single talk with "Java EE" in the title. Like last year Devoxx Poland has attracted many great speakers.

Also, the food last year was delicious, so I hoping for the same this year.

Here is Devoxx 2015 video



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