WSAD : loading properties file from EBJ project

Hi,
I am trying to load properties file contains database parameters into my EJB project. I am using WSAD as IDE tool
can you please help me with following.
1. where to place the .properties file physically ?
2.how to load the file to my EJB/DAO classes
3.can i use the same location to place log4j.properties file as well ?
I have tried doing in different ways but none is working.
thank you
Narendra

got it working , for information pl go to the following page and section "Using log4j in an EJB Application"
i have followd same steps for loading my properties file .
http://sys-con.com/story/?storyid=43413&DE=1

Similar Messages

Unable to load properties file from filesystem

Hi,
I have a client swing-applicatiion packaged in a jar-file. The application uses some resource files, including a xxxx.properties file to set defaults for the application. All resource files are included in the jar file and everything works as expected. I load the xxxx.properties file as follows:
is_ = getClass().getResourceAsStream("/resources/xxxx.properties");
Because it is not possibl to change any property values inside the jar-file without recreating this jar-file, i want to exclude the xxxx.properties file from the jar-file and put it in the folder containing the jar-file.
So i have:
drive:/folder/app.jar
drive:/folder/xxxx.properties
Now i read the xxxx.properties file from disk in stead of the 'resouce'-folder within my application (jar):
is_ = getClass().getResourceAsStream("drive:/folder/xxxx.propoerties");
but it doesn't work, the file isn't found.
What am i missing here?
Any suggestions?

The best way to approach this is to include the properties file in the Jar as you originally did. If the user changes any property, save the entire set of properties to a sub-directory of user.home (perhaps based on the package name of the main class). Check for the copy in user.home before using the 'default' properties built into the Jar.
Other places/ways to store the changed information.
- java.util.prefs.Preferences
- Assuming the app. has a GUI and can be deployed over a network, the JNLP API PersistenceService. Here is a demo. of the PersistenceService (http://pscode.org/jws/api.html#ps).
Edit 1:
I did not at first notice that this post was in Java Applet Development.
<li> Applets can also (theoretically) use cookies to store information. This is prone to failure when users disable cookies.
<li> To store information on the local file system (e.g. in user.home) or to use Preferences (AFAIU) would require trusted code.
<li> If the user has the Next Generation Java Plug-In (Java 1.6.0_10+) it is possible to leverage the JNLP API services in an embedded & sand-boxed applet.
Edited by: Andrew Thompson on Feb 1, 2011 9:32 AM

How to get File Reference of a properties file from EJB

Hi,
I am using Sun App server 7 with Oracle 9i. I am keeping all my SQL statements in a properties file from which I am loading it while making a database operation from Stateless beans. My problem is I am not able to get the reference of the properties file. Here is the code through which I am getting the SQL statements loaded to a cache.
String sqlFileName = "SQL.properties";
sqlCache.load(new FileInputStream(sqlFileName));
From the cache I am sending the SQL statement depending on the key value. But the problem is I have to keep the SQL.properties file on the App Server config directory of the instance where the server.xml file resides. Otherwise it is not able to find the properties file. But I don't want to put the properties file on the config directory of the server instance. Please help how to get the properties file from the packakge. My file is residing inside a package com.company.sql . Botht the properties file and the class accessing the file are residing in the same package. Please help how to get the reference of the file with out putting the file in the config directory.
Thanks
Amit Patnaik

Just wanted to warn you of the hazards if you read a file from EJB
So please make sure that these hazards will not affect your application. However the solution suggested to use getResourceStream() concurs with ejbSpec
This snippet is from suns blueprint on ejb
Why can't EJBs read and write files and directories in the filesystem? And why can't they access file descriptors?
Enterprise beans aren't allowed to access files primarily because files are not transactional resources. Allowing EJBs to access files or directories in the filesystem, or to use file descriptors, would compromise component distributability, and would be a security hazard.
Another reason is deployability. The EJB container can choose to place an enterprise bean in any JVM, on any machine in a cluster. Yet the contents of a filesystem are not part of a deployment, and are therefore outside of the EJB container's control. File systems, directories, files, and especially file descriptors tend to be machine-local resources. If an enterprise bean running in a JVM on a particular machine is using or holding an open file descriptor to a file in the filesystem, that enterprise bean cannot easily be moved from one JVM or machine to another, without losing its reference to the file.
Furthermore, giving EJBs access to the filesystem is a security hazard, since the enterprise bean could potentially read and broadcast the contents of sensitive files, or even upload and overwrite the JVM runtime binary for malicious purposes.
Files are not an appropriate mechanism for storing business data for use by components, because they tend to be unstructured, are not under the control of the server environment, and typically don't provide distributed transactional access or fine-grained locking. Business data is better managed using a persistence interface such as JDBC, whose implementations usually provide these benefits. Read-only data can, however, be stored in files in a deployment JAR, and accessed with the getResource() or getResourceAsStream() methods of java.lang.Class.
Hope this info helps!

Custom properties files in enterprise project

Hi,
I created a enterprise application containing 3 projects:
- EAR project
- EJB project
- Web project
And I added a properties file in :
-EAR project/EarContent/APP-INF/afile.properties
The content of this file is :
Host=<path to host>
Port=389
And I have a .jar file that uses this properties file that is located in :
-EAR project/EarContent/APP-INF/lib/afile.jar
Then I add .jar file, through EAR project --> Right click --> Properties --> Deployment Assembly --> Add --> Archives from workspace
It is then shown under EAR porject - Deployment Descriptor - Bundled Libraries - Library Directory
When running the application, the JAR file executes as it should, but it cant find the properties file.
In the .jar file I have a java file that locates the properties file and elements like this :
private static final String BROKER_PROPERTY_NAME = "afile";
brokerResources = PropertyResourceBundle.getBundle(BROKER_PROPERTY_NAME);
String host = brokerResources.getString("host");
int port = Integer.parseInt(brokerResources.getString("port"));
Anyone know where to put the properties file to be able to get this to work?
Regards, reZer

Hi, thanks, it works :)
After Clean, and Publish, and restart , remove, add it runs :)
Is the Classes directory available when deploying to an production environment? So that I can change the content without the need for å redeployment?
I could figure out where Weblogic stores deploymentfiles in my domain, EAR, WAR, EJB files, and lib and classes dir.
-regards reZer

Log4J - reading properties file from /WEB-INF directory issue..

I'm just learning to implement Log4J; the approach I am taking for my JSF application running under Tomcat 5.5x is to create an initialization servlet to initialize the logger, and then access the logger instance within my backing beans and application module services. I include log4j.jar file in /WEB-INF/lib and log4j.properties in /WEB-INF.
First I wanted to see if this was a good approach, and secondly I'm having trouble accessing the log4j.properties file from the /WEB-INF directory (see below) - any suggestions on how to set up the path so that the properties file can be found (I receive a java.io.filenotfoundexception)?
Where I'm looking for direction is how to define a single instance of the logger and then access that instance from my java classes versus re-creating the logger in each class.
----- web.xml --------
<servlet>
<servlet-name>LogServlet</servlet-name>
<servlet-class>com.sidehire.view.util.LogServlet</servlet-class>
<init-param>
<param-name>setup</param-name>
<param-value>/WEB-INF/log4j.properties</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
------ LogServlet class ------
public void init()
throws ServletException {
String config = getInitParameter("setup");
PropertyConfigurator.configure(config);
Thanks
Message was edited by:
javaX

Try to put the log4j.properties in your WEB-INF/classes/ directory.
You could wrap one log4j instance in a static method in a utility class, but then you would probably lose other information depending on your logger configuration.
If you create an instance in each class, which after all is just one line like this:
static Logger logger = Logger.getLogger(ChangePasswrdAction.class.getName());
then you are able to get time and method information.

How to load properties file

Hello Everyone,
We are experiencing difficulties when trying to load a properties file from a directory other then the one where the servlet is located. We are using the following code for this purpose:
private final String PROP_FILE_NAME = "my.properties";
Properties props = new Properties();
try {
props.load(getClass().getResourceAsStream(codeBase + PROP_FILE_NAME));
} catch(IOException e) {
//handle error ...
where codeBase is either physical directory path to the properties file or the URL. In either case we get a NullPointer exception which means that file is not found. But when we copy the properties file into the same directory where the servlet resides, everything works fine.
Does anybody have an idea as to how to resolve our problem?
Any help will be greatly appreciated!
Thanks in advance!
Y.M.

HI,
I always keep my properties in a sub-directory called resources. In this case it is called Aircraft.properties.
* Holds the ResourceBundle of this object.
     private static ResourceBundle resources;
     static
          try
               resources = ResourceBundle.getBundle("resources.Aircraft", Locale.getDefault());
          catch (MissingResourceException mre)
               System.err.println("resources/Aircraft.properties not found");
               System.exit(1);
// Here I pick up the data from the properties file
     protected String getResourceString(String nm)
          String str;
          try
               str = resources.getString(nm);
          catch (MissingResourceException mre)
               str = null;
          return str;
// In this case I use menubar as key to my properties
String[] menuKeys = tokenize(getResourceString("menubar"));
Hope this will help a bit.
Klint

Changing a .properties file from within a programme

Hi, I was just wondering is there anyway that i can change a .properties file from within a programme?
I have certain values in the .properties file and I want to add a username and password to the file once it has been entered in a login part of the programme.
I have had a look at the docs and can not seem to find any suitable methods.
Cheers Gareth.

store is a good method.
In practical use, sometimes you have a .properties file full of comments (properties files are to be modified by humans, and humans need comments), but they are not retrieved by "load" so they will not be stored back by "store". It's a pity that it happens (the equivalent Windows API, WritePrivateProfileString, has a better behaviour).
Maybe someone has written a method that can modify a properties file, without changing the order of the pairs name=value and without throwing out comments.

Loading swf files from an iPhone Air App

Although the faq says its possible ( http://bit.ly/gyxmCo ) I can't seem to load .swf files from my app.
There's no .AS code in the .swf file I'm trying to load.
PNG files load with no problems, swf's fail.
A working example would be appreciated instead of suggestions, I've spent the entire day trying out suggestions
regards,
Martijn

Because I can't see any library assets in an as2.0 file.
I've discovered that the swf fails to load as soon as you make a symbol 'export for actionscript'
probably because it will then create a class. So you can only load SWF's as simple pictures or animations, you cant use it as an asset library with multiple animations/images/sounds in it..
As for you other questions:
it doesnt matter if the file is local or on the web. same results
I created the swf file from a fla in CS4, and I'm compiling my air project that loads the swf with FlashDevelop.

Use resourceBundle properties file from KM

Hi,
I have a properties file called com.mycomp.apps.phonebook.properties in the KM Content of the portal in KM Content => root => mycomp => apps => phonebook => customizing
Now I'm developing a new LinkCommand service for the UserDetails.
http://help.sap.com/saphelp_nw04/helpdata/en/65/29b24053c13f5fe10000000a155106/frameset.htm
The already existing LinkCommand "Send E-mail..." is read from the original resourceBundle com.sap.ip.collaboration.gwui.api.wdf.mail.SendTo
For my new LinkCommand I would like to use the existing properties file. How do I have to define this file in the uicommand xml or properties xml sheet?
Can anybody help me?
With the local project resourceBundle it's working, but I would like to use the file in the KM. Andy ideas?
Regards,
Stefan

Hi Praven,
Copying all existing SendTo properties file to my project would be an option but I wouldn't win anything.
I'm quite happy with the existing SAP collaboraton properties files using e.g. for "Send e-mail".
I won't change this existing ones. I created a new LinkCommand. And for this new LinkCommand I'm looking for a solution how I can handle the translation for it.
I would prefer e using my existing file which is located in the KM. The reason why it's located in the KM is, if I need to change a translation or add a new translation properties file I only need to change it in the KM. If it's a part of the project I need by every change to deploy the project new.

Read resourceBundle properties file from KM

Hi,
I have a properties file called com.mycomp.apps.phonebook.properties in the KM Content of the portal in KM Content => root => mycomp => apps => phonebook => customizing
Now I'm developing a new LinkCommand service for the UserDetails.
http://help.sap.com/saphelp_nw04/helpdata/en/65/29b24053c13f5fe10000000a155106/frameset.htm
The already existing LinkCommand "Send E-mail..." is read from the original resourceBundle com.sap.ip.collaboration.gwui.api.wdf.mail.SendTo
For my new LinkCommand I would like to use the existing properties file. How do I have to define this file in the uicommand xml or properties xml sheet?
Can anybody help me?
With the local project resourceBundle it's working, but I would like to use the file in the KM. Andy ideas?
Regards,
Stefan

Hi Praven,
Copying all existing SendTo properties file to my project would be an option but I wouldn't win anything.
I'm quite happy with the existing SAP collaboraton properties files using e.g. for "Send e-mail".
I won't change this existing ones. I created a new LinkCommand. And for this new LinkCommand I'm looking for a solution how I can handle the translation for it.
I would prefer e using my existing file which is located in the KM. The reason why it's located in the KM is, if I need to change a translation or add a new translation properties file I only need to change it in the KM. If it's a part of the project I need by every change to deploy the project new.

Loading property files from a class and not a servlet...

Hi, I was wondering if anyone has a good solution for loading property files from a class instead of a servlet. I would like to load the property file similarly to how it is done from HttpServlet.
Here is the large picture. I have a tag library that calls a class which needs to access a database. The class needs to know what DB to access so it needs to look at some property file. The problem is that I don't want to hardcode the properties or the path of where the property file exists. I hope this all makes sense.
Thanks.
-PV

I use the getResource method in the java.lang.Class class. Read about this method in the api.
Anyways this is roughly how it's : you must put your properties file in the classpath. Then in your class :
Properties prop = new Properties();
URL url = this.getClass().getResource("/config/db.properties");
prop.load(url.openStream());In this case, you must put the "config" (where you've written your db.properties file) directory's parent in the classpath.

Cannot seem to read properties file from JSP

Hi all,
In an ISA 4.0 application I want to read a properties file from a JSP to decide whether or not to execute some specific JavaScript code. I want the properties file because in it I can easily configure this externally. I put my properties file in /WEB-INF/classes.
I develop on an environment using Tomcat where this works fine. On an acceptance machine using the SAP J2EE engine however this won't work, to my surprise. Can anyone give me a suggestion on why my properties file is not read?
Here's the Java scriptlet code:
UserSessionData userSessionData = UserSessionData.getUserSessionData(session);
// theme will be something like "themes/zester":
String theme = (String) userSessionData.getAttribute(Constants.THEME_KEY);
boolean showScript = false;
int slashIndex = theme.indexOf('/');
String themeKey = null;
// get the "zester"-like part from the theme:
if(theme != null && slashIndex > -1) {
themeKey = theme.substring(slashIndex + 1);
Properties props = new Properties();
InputStream is = application.getResourceAsStream("/WEB-INF/classes/script.properties");
if(is != null) {
props.load(is);
is.close();
Enumeration keysEnum = scriptProps.propertyNames();
while (themeKey != null && keysEnum.hasMoreElements()) {
   if(theme.toUpperCase().endsWith((String) keysEnum.nextElement())) {
    showScript = true;
    break;
   showScript = false;

Hi Kishor,
Thank you for taking the time!
I agree, this issue may have to do with the deployment. There is however a remark in the <a href="http://java.sun.com/products/servlet/2.3/javadoc/javax/servlet/ServletContext.html">ServletContext</a> interface documentation on methods <a href="http://java.sun.com/products/servlet/2.3/javadoc/javax/servlet/ServletContext.html#getResource(java.lang.String)">getResource()</a> and <a href="http://java.sun.com/products/servlet/2.3/javadoc/javax/servlet/ServletContext.html#getResourceAsStream(java.lang.String)">getResourceAsStream()</a> that may also be of interest here:
"The servlet container must implement the URL handlers and URLConnection objects that are necessary to access the resource."
Is this remark of relevance to the subject, or is this thought too far fetched? Mind you, the documentation also states that "This method allows the servlet container to make a resource available to servlets from any source. Resources can be located on a local or remote file system, in a database, or in a .war file". It should, therefore, be possible to read a file from disk???
Cheers,
Peter-Jan Bosch

Load Flat File from App Server

HI, all.
I want load flat file from appliation server. I created CSV file and loaded it on app. server with FM ARCHIVEFILE_CLIENT_TO_SERVER. After I created datasource and tried load data in the infocube. In this procedure I encountered with two problem
1. When I look file in AL11, I doesn't see cyrillic symbols, instead this symbols I see #.
2. When I try load data with data source, I get exception RS_EXCEPTION 000 "File don't open"
Anybody can help me resolve this problem?
wbr, Fanil.

Hi, kodanda pani KV.
2. File is was closed.
1. Can me you clearly explain what you meen?
wbr, Fanil

Infopackage-Load Many Files from Application Server and later Archive/Move

Hi All..
I have a doubt,   I have a requirement of take many files to load into BI 7.0.. I used the infopackage before with option:
Load Binary File From Application server
I load information successfully... only with one file ...but If I can load many files (with different names) like the next list.. I think it's not a good idea modify the file name (path) on infopackage each time).. :
*All of this files will be on one server that itu2019s map into AL11.. Like
Infopfw
BW_LOAD_20090120.txt
BW_LOAD_20090125.txt
BW_LOAD_OTHER_1.txt
u2026.
Etc..
This directory it's not in BW server.. It's other server..but I can load form this location (one file by one)
Could you help me with this questions:
-     How can I Use an infopackage with routine that take all the files..one by oneu2026 in order of creation dateu2026and load into Target? Is it possible?.. I have some knowledge of ABAP.. but I don´t know exactly how I can say to system this logicu2026
-     In addition is it possible move this files to other locationu2026 like into Infopfwarchive u2026 just to have an history of files loaded.
I saw that in infopackage you have an option to create a routine.. in ABAP codeu2026 Iu2019m a little bit confused because I donu2019t know how I can specify all the path..
I try with:
Infopfw
InfopfwFile.csv
Infopfw
This is the abap code that automatically you see and you need to modifyu2026
Create a routine for file name
This routine will be called by the adapter,
when the infopackage is executed.
          p_filename =
          p_subrc = 0.
Thank you for your ideas or recommendations.
Al

Hi Reddy, thank you for your answer
I have some doubuts.. when you explain me the option:
All the above files are appending dates at the end of the file....
You can load the files through infopackage by using Routines and pick the files based on date at the end of the file..***
I need to ask you if you think that when you know the date of the file and the infopackage pick each file... thi can work for many files??... or how it's possible control this process?
About this option, I want to ask you If when you menction Unix code... where it's programed this code?.. in the routine of BW Infopackage??
****Or
Create two folders in your BW in Application server level, in AL11 (ask Basis team)
I call it is F1 and F2 folders.
First dump the files into F1 I assume that the file name in F1 is "BW_LOAD_20090120.txt", using Unix code you rename the file and then keep in the same foleder F1 or move to F2.
Then create InfoPackage and fix the file name (i.e. you renamed), so you don't need to change everyday your file name at infopackage level.Because in AL11 everyday the file are overwrite.
To I get BW_LOAD_20090120.txt file in F1, then I renamed to BW_LOAD.txt and loaded into BW, then tomorrow I get BW_LOAD_20090125.txt in F1, then I renamed to BW_LOAD.txt....
so in this way it will work.You need to schedule the Ubix script in AL11.
This is the way how to handle the application server...I'm using the same logic.
Thank you soo much.
Al

Load XML file from addon domain without cross-domain Policy file

Hello.
Assuming that there are two addon domains on the same server: /public_html/domain1.com      and      /public_html/domain2.com
I try to load XML file from domain2.com into domain1.com without using cross-domain policy file (since it doesn’t work on xml files in my case).
So the idea is to use php file in order to load XML and read it back to flash.
I’ve found an interesting scripts that seems to do the job but unfortunately I can't get it to work. In my opinion there is somewhere problem with AS3 part. Please take a look.
Here are the AS3/PHP scripts:
AS3 (.swf in www.domain1.com):
// location of the xml that you would like to load, full http address
var xmlLoc:String = "http://www.domain2.com/MyFile.xml";
// location of the php xml grabber file, in relation to the .swf
var phpLoc:String = "loadXML.php";
var xml:XML;
var loader:URLLoader = new URLLoader();
var request:URLRequest = new URLRequest(phpLoc+"?location="+escape(xmlLoc) );
loader.addEventListener(Event.COMPLETE, onXMLLoaded);
loader.addEventListener(IOErrorEvent.IO_ERROR, onIOErrorHandler);
loader.load(request);
function onIOErrorHandler(e:IOErrorEvent):void {
    trace("There was an error with the xml file "+e);
function onXMLLoaded(e:Event):void {
    trace("the rss feed has been loaded");
    xml = new XML(loader.data);
    // set to string, since it is passed back from php as an object
    xml = XML(xml.toString());
    xml_txt.text = xml;
PHP (loadXML.php in www.domain1.com):
<?php
header("Content-type: text/xml");
$location = "";
if(isset($_GET["location"])) {
    $location = $_GET["location"];
    $location = urldecode($location);
$xml_string = getData($location);
// pass the url encoded vars back to Flash
echo $xml_string;
//cURLs a URL and returns it
function getData($query) {
    // create curl resource
    $ch = curl_init();
    // cURL url
    curl_setopt($ch, CURLOPT_URL, $query);
    //Set some necessary params for using CURL
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
   //Execute the curl function, and decode the returned JSON data
    $result = curl_exec($ch);
    return $result;
    // close curl resource to free up system resources
    curl_close($ch);
?>

I think you might be right about permissions/settings on the server for php. Unfortunately I'm not allowed to adjust them.
So I wrote my own script - this time I used file path instead of http address of the XML file. It works fine in my case.
Here it is:
XML file on domain2.com:
<?xml version="1.0" encoding="UTF-8"?>
<gallery>
    <image imagePath="galleries/gallery_1/images/1.jpg" thumbPath="galleries/gallery_1/thumbs/1.jpg" file_name= "1"> </image>
    <image imagePath="galleries/gallery_1/images/2.jpg" thumbPath="galleries/gallery_1/thumbs/2.jpg" file_name= "2"> </image>
    <image imagePath="galleries/gallery_1/images/3.jpg" thumbPath="galleries/gallery_1/thumbs/3.jpg" file_name= "3"> </image>
</gallery>
swf on domain1.com:
var imagesXML:XML;
var variables:URLVariables = new URLVariables();
var varURL:URLRequest = new URLRequest("MyPHPfile.php");
varURL.method = URLRequestMethod.POST;
varURL.data = variables;
var MyLoader:URLLoader = new URLLoader;
MyLoader.dataFormat =URLLoaderDataFormat.VARIABLES;
MyLoader.addEventListener(Event.COMPLETE, XMLDone);
MyLoader.load(varURL);
function XMLDone(event:Event):void {
    var imported_XML:Object = event.target.data.imported_XML;
    imagesXML = new XML(imported_XML);
   MyTextfield_1.text = imagesXML;
   MyTextfield_2.text = imagesXML.image[0].attribute("thumbPath"); // sample reference to attribute "thumbPath" of the first element
php file on domain1.com:
<?php
$xml_file = simplexml_load_file('../../domain2.com/galleries/gallery_1/MyXMLfile.xml'); // directory to XML file on the same server
$imported_XML = $xml_file->asXML();
print "imported_XML=" . $imported_XML;
?>
Regards
PS: for those who read the above discussion: the first and the second script work but you must test which one is better in your situation. The first script will also work between two domains on different servers. No cross domain policy file needed.

WSAD : loading properties file from EBJ project

Similar Messages

Maybe you are looking for