WebSphere – Restart enterprise applications usign Jython Script

My jython script : restartApp.py

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
appName = sys.argv[0]
nodeName = 'w9Node'
serverName = 'WebSphere_Portal'
 
try:
   appMgr = AdminControl.queryNames('type=ApplicationManager,node='+nodeName+',process='+serverName+',*')
   appDetails = AdminControl.completeObjectName('type=Application,name='+appName+',*')
   print ''
 
  if len(appDetails) > 0:
    print '['+appName+'] is started lets stop'
    AdminControl.invoke(appMgr, 'stopApplication', appName)
 
except:
  print("Ignoring error - %s" % sys.exc_info())
 
print 'lets start ['+appName+']'
    AdminControl.invoke(appMgr, 'startApplication', appName)

Restart multiple app using jhyton script invoked by dos script :

1
2
3
4
5
6
7
8
9
10
11
12
@echo off
 
set baseCommand=C:\ibm\portal\AppServer\bin\wsadmin.bat -conntype SOAP -host localhost -port 10033 -user <youruser> -password <yourpassword> -lang jython -f restartApp.py
set cellName=wp9Celldev
 
set appName=app001-ear 
set "MYCOMMAND=%baseCommand% %appName% %cellName%"
call %MYCOMMAND%
 
set appName=app002-ear 
set "MYCOMMAND=%baseCommand% %appName% %cellName%"
call %MYCOMMAND%

Vaadin : Use a custom converter on grid

Here a simple Vaadin converter to format dateTime in GRID.
ConvertToModel method is not implemented because converter is not associated to any field.

How to use Grid

  CustomFormatDateStringConverter dateConverter = new CustomFormatDateStringConverter();
  grid.getColumn("beanDateAttr").setConverter(dateConverter);

Converter Implementation

package com.common.utils;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;

import com.vaadin.data.util.converter.Converter;

public class CustomFormatDateStringConverter implements Converter<String, String> {
	SimpleDateFormat dateParser = new SimpleDateFormat("ddMMyyyy");
	SimpleDateFormat dateFormatter = new SimpleDateFormat("dd/MM/yyyy");

	@Override
	public String convertToModel(String value,
			Class<? extends String> targetType, Locale locale)
			throws com.vaadin.data.util.converter.Converter.ConversionException {
			
			// If using in a grid this part can be omitted
			
			return value;
	}

	@Override
	public String convertToPresentation(String value,
			Class<? extends String> targetType, Locale locale)
			throws com.vaadin.data.util.converter.Converter.ConversionException {
			
			if (value!=null && !value.isEmpty()) {
				try {
					Date date = dateParser.parse(value);
					value = dateFormatter.format(date);
				} catch (ParseException e) {
					e.printStackTrace();

				}
			}else{
				value="";
			}
			return value;
	}

	@Override
	public Class<String> getModelType() {
		return String.class;
	}

	@Override
	public Class<String> getPresentationType() {
		return String.class;
	}

}

Configure Jrebel with remote server

After 3 hours turning around over many examples, finally I’ve configured Jrebel with remote webpshere portal.
This is my step by step configuration guide:

-) Step 1 : download the client from this url :

Archived JRebel Releases

-) Step 2 : copy and unpack downloaded file on the remote server (I usually use: C:\IBM\jrebel\)

-) Step 3 : Activate client using a valid licence (I’ve used activate script in client’s bin directory)

-) Step 4 : Generate bootstrap file using this command (Don’t forget to use websphere portal jvm ):

cd C:\IBM\jrebel

C:\IBM\WebSphere\AppServer\java\jre\bin\java -jar jrebel.jar

-) Step 5 : Copy jrebel-bootstrap.jar from [userHome]/.jrebel to C:\IBM\jrebel\

-) Step 6 : Add jrebel parameter to websphere portal jvm (if you don’t know how visit this : http://www-01.ibm.com/support/docview.wss?uid=swg21417365) :

-Xshareclasses:none -Xbootclasspath/p:C:\IBM\jrebel\jrebel-bootstrap.jar;C:\IBM\jrebel\jrebel.jar -Drebel.remoting_plugin=true 

finally my configuration seems like this:

-Xshareclasses:none -Xbootclasspath/p:C:\IBM\jrebel\jrebel-bootstrap.jar;C:\IBM\jrebel\jrebel.jar -Drebel.remoting_plugin=true ${WPS_JVM_ARGUMENTS_EXT} -Dderby.system.home=${USER_INSTALL_ROOT}/PortalServer/derby -Dibm.stream.nio=true -Djava.io.tmpdir=${WAS_TEMP_DIR} -Xdump:stack:events=allocation,filter=#10m -Xgcpolicy:gencon -verbose:gc -Xverbosegclog:${SERVER_LOG_ROOT}/verbosegc.%Y%m%d.%H%M%S.%pid.txt,20,10000

-) Step 7 : Finally don’t foget generate password using this command:

cd C:\IBM\jrebel

C:\IBM\WebSphere\AppServer\java\jre\bin\java -jar jrebel.jar -set-remote-password password

How to split String in words and populate an array

Here a simply method to split a string in words and generate an array.
In this case I use a Length param to limit substring size.

 


...

public static String[] splitStringInWordsAndCreateArrayWithLineInSize(String input,Integer lineLength){
		String[] words = input.split(" ");
 		List<String> list = new ArrayList<String>();
 		StringBuilder line = new StringBuilder();
 		for (int x = 0; x < words.length; x++) {
 			
 			
 			Boolean c = ((line.toString()+words[x]+" ").length()<lineLength);
 			if(c){
 				line.append(words[x]).append(" ");
 			}else{
 				list.add(line.toString());
 				line = new StringBuilder(words[x]).append(" ");
 			}
 		}
 		if(line.toString().length()>0){
 			list.add(line.toString());	
 		}
 		
 		Object[] arrObj = list.toArray();
 		String[] arrString = Arrays.copyOf(arrObj, arrObj.length, String[].class);
 		
		return arrString;
	}

...

And here unit test:


...

@Test
	 	public void testSplitStringInWordsAndCreateArrayWithLineInSize(){
	 		String s = "Prodotti tricologici per la cura e la bellezza dei capelli,quali shampoo, lozioni per capelli, preparati per ondulare icapelli, preparati per effettuare la permanente dei capelli,tinture per capelli, gel per capelli, lacche e fissatori percapelli,preparati per ravvivare il colore dei capelli . ";
	 		Integer lineLength = 62;
	 		String[] out = FYStringUtils.splitStringInWordsAndCreateArrayWithLineInSize(s, lineLength);
	 		StringBuilder rebuild = new StringBuilder();
	 		for(int x=0;x<out.length;x++){
	 			//System.out.println("x-"+out[x]);
	 			assertThat(out.length<lineLength).isTrue();
	 			rebuild.append(out[x]);
	 		}
	 		
	 		
	 		assertThat(rebuild.toString()).isEqualTo(s);
	 		
	 	}

...