× The internal search function is temporarily non-functional. The current search engine is no longer viable and we are researching alternatives.
As a stop gap measure, we are using Google's custom search engine service.
If you know of an easy to use, open source, search engine ... please contact support@midrange.com.


  • Subject: Re: Source Evaluation?
  • From: "Simon Coulter" <shc@xxxxxxxxxxxxxxxxx>
  • Date: Sat, 10 Feb 01 10:22:57 +1100


Hello Brad,

You wrote:
>The only thing that still boggles my mind is what sets the default path
>where the program will look for these files?  Is it one path, or is it the
>entire classpath?

The old "Chicken and Egg" problem!  Where do I look first?  You can configure 
the servlet to receive initial parameters passed in by WebSphere.  One of 
these could be the location of the properties file.  What I've done in the 
past is:

        1/ Configure WebSphere to pass initial parameters.  For WebSphere 2.x 
this is done by editing  
/QIBM/PRODdata/IBMWebAS/properties/server/servlet/servletservice/servlets.pro
perties

Add the following lines to the bottom of the file after the comment
#Servlets added by the user
        
#Link2parts configuration information
servlet.ServletName.code=ServletName
servlet.ServletName.initArgs=cfgfile=/MyStuff/ProdData/Servlets/MyStuff.servl
et.properties

(replacing ServletName with your servlet name)

        2/ Receive those parameters: in the init() method if they are fairly 
static or in the doPost() or doGet() methods if you want any property changes 
to be immediately reflected.

Here is an example method to determine the name of the properties file, 
create a Properties object from the contents of that file, and return the 
Properties object to the caller.

/**                                                                           
 * This method was created in VisualAge.                                      
 * @return java.util.Properties                                               
 * @exception javax.servlet.ServletException The exception description.       
 */                                                                           
private Properties getMyStuffProperties() throws ServletException          
{                                                                             
 Properties myStuffProperties = new Properties();                          
                                                                              
 // Get the location of the MyStuff configuration file                     
 String cfgFilePath = getInitParameter(MyStuffConstants.INIT_PARM_CFGFILE);
                                                                              
 // Create an input reader for the configuration file                         
 try                                                                          
 {                                                                            
  FileInputStream cfgFile = new FileInputStream(cfgFilePath);                 
                                                                              
  // Load a properties object from the file contents                          
  try                                                                         
  {                                                                             
          
   myStuffProperties.load(cfgFile);                                             
       
   return new Properties(myStuffProperties);                                    
       
  }                                                                             
          
  catch (IOException theException)                                              
          
  {                                                                             
          
   getServletContext().log(theException, "Errors occurred loading the 
configuration file:" + cfgFilePath);
   throw new UnavailableException(this, theException.toString());               
          
  }                                                                             
          
 }                                                                              
          
 catch (FileNotFoundException theException)                                     
          
 {                                                                              
          
  getServletContext().log(theException, "Errors occurred opening the 
configuration file:"  + cfgFilePath);
  throw new UnavailableExceptio
this, theException.toString());                 
         
 }                                                                              
          
}                                                                               
          

        3/ Use those parameter values as necessary in the code.  For example:

// Create JDBC connection specification.                                        
        
connSpec = new IBMJdbcConnSpec(myStuffProperties.getProperty("POOL_NAME"),
true,
myStuffProperties.getProperty("JDBC_URL"),
myStuffProperties.getProperty("DB_URL"),
myStuffProperties.getProperty("USER_ID"),
myStuffProperties.getProperty("PWD"));

        4/ Provide an "administration" web page (via servlet and JSP) that 
allows the properties to be maintained.  Use HTTP server protection 
mechanisms to restrict access to the configuration servlet.

The properties file can contain anything you desire.  For example:

#MyStuff configuration file           
#Sat Apr 29 04:07:08 GMT+00:00 2000      
JDBC_URL=com.ibm.db2.jdbc.app.DB2Driver  
DB_URL=jdbc:db2:*LOCAL                   
POOL_NAME=JdbcDb2                        
USER_ID=PLEBIAN                              
PWD=*******                             
CONFPWD=*******                         
DB_LOC=DATA                         
PROD_LOC=PARTS                      
STG_TBL_HDR=LORDHD                       
STG_TBL_DTL=LORDDT                       

Regards,
Simon Coulter.

«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»
«» FlyByNight Software         AS/400 Technical Specialists       «»
«» Eclipse the competition - run your business on an IBM AS/400.  «»
«»                                                                «»
«» Phone: +61 3 9419 0175      Mobile: +61 0411 091 400           «»
«» Fax:   +61 3 9419 0175      mailto: shc@flybynight.com.au      «»
«»                                                                «»
«» Windoze should not be open at Warp speed.                      «»
«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»
+---
| This is the JAVA/400 Mailing List!
| To submit a new message, send your mail to JAVA400-L@midrange.com.
| To subscribe to this list send email to JAVA400-L-SUB@midrange.com.
| To unsubscribe from this list send email to JAVA400-L-UNSUB@midrange.com.
| Questions should be directed to the list owner: joe@zappie.net
+---

As an Amazon Associate we earn from qualifying purchases.

This thread ...


Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2024 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.