Not able to read a text file or binary

I am reading in a file text or binary, as shown in the Blackberry "how - adds an application of plain text or binary files"

http://www.BlackBerry.com/knowledgecenterpublic/livelink.exe/fetch/2000/348583/800332/800620/How_To _...

I use Eclipse 3.4.2 I implemented a project of Blackberry with the following structure:

Test1 (project name)

-src (folder)

| + com.name.xxx

| + com.name.yyy

| Test1.Java

+ NET_RIM_BLACKBERRY

-test

I'm reading in the test file is at the level of the main project folder. For example, the Test1.jdp file is located in the folder of the main project and the test file (text file or binary). I am trying to access the file using the line of code below:

Class classs = Class.forName(this.getClass().getName());

InputStream is = classs.getResourceAsStream("/test");

The getResourceAsStream indicates that the file will be in the same location as the location of the Test1.jdp file if the bar oblique is in front of the name of the file, or that it will look in the source for the main class file. When I have the slash I get error

CAFETERIA: could not find the test file

I tried several different attempt to get to the CAFETERIA to find the file, but I'm running out of ideas and I would appreciate someone else's ideas on what to try.

Thank you

Thank you klyubin and stef

I found a solution that works for me with Eclipse plug-ins, JDE.

First, the example of Blackberry in the how-to (see original thread number) with test as file is named simply 'test '. This does not work for me at all in Eclipse. I gave up to place the file in the folder of the project Eclipse (main folder) and placed in the src folder, which of course gives a compile error because is not a Java file, and of course when using file name in my java code I changed the code correctly as in the first line that follows :


// this will look in the source folder of the class // that myClass refers tois = myClass.getResourceAsStream("test.txt");

// this is supposed to refer to a file called 'test' // in the source folder of the class that myClass refers to // but apparently for Eclipse it must have a .txt extension// as in the above exampleis = myClass.getResourceAsStream("test");

// this is supposed to refer to a file called 'test' // in the main project folder but not apparenlty for Eclipseis = myClass.getResourceAsStream("/test");

// this is supposed to refer to a file called 'test.txt' // in the main project folder but not apparenlty for Eclipseis = myClass.getResourceAsStream("/test.txt");             }

Note: I was also getting the error message when I place the file named "test" in the src below directory. I managed to get rid of this error message by configuring the path building (similar to deleting the file of the JDP file including klyubin suggested above for Blackberry JDE ordinary rather than the plugin Eclipse) to remove the file 'test' for compiling so I would not get the compile error.

However, this was not my main problem - if you name the file test.txt and place it in the src directory you do not get this error I believe.

Errors during construction

Errors running builder "Blackberry resources Builder" on the project...

Could not compile files

java.io.FileNotFoundException: C:\path to the file I had added in the directory\.rrh of the source (or some truncation of the file name .rrh - for example te.rrh)

Finally, I have checked the jar (as klyubin suggested) file that is created when I place the file 'test' or 'test.txt' in my Eclipse project main folder. The jar file did not contain the name file and so when I run in the Simulator, the file is not found. Even when I put the file in the jar (main directory) myself the Simulator still could not find the file. When I placed the test.txt file in my directory src the jar resulting file contains the file named and the Simulator can find the file ok.

So, it seems to me that for the plug-in Eclipse JDE contextual explanation of the method getResourceAsStream does not apply as described at this time.

getResourceAsStream

public InputStream getResourceAsStream(String name)

Looking for a resource with a given name. This method returns null if no resource with this name is found. The rules looking for resources associated with a given class are specific profile. RIM implementation notes: this method searches the resource from the directory in which the current JDP project file is located. By default, it is assumed that this JDP file resides in the parent directory of the package of the current project space. Thus, the package space tree (for example, com/rim/PackageName) is added to name so that the search begins from this space package, that is, in the source directory of the current project. However, if the current JDP project file does not lie in its presumed location, the behavior above prevent the resource located. In this case, the user must add a slash (/) in the name of the resource before calling getResourceAsStream. This treats the name as an absolute path, which is compared to a tree whose root is the location of the JDP file. Parameters: name - name of the desired resource Returns: a java.io.InputStream object. Since: JDK1.1

If Alain klyubin (or someone else) can enlighten us more on why the file should be named *.txt to find the file in the source directory, which can be useful to me and others in the future. My real goal is to read in an image file named *.jpeg. We'll see how it goes.

And thank you klyubin for the suggested code change which I had also found in another thread...

// this was more than what was necessary//Class myClass = Class.forName(this.getClass().getName());

// this is simpler  Class myClass = this.getClass();

And so many other Eclipse users who try to follow the Blackberry How To - add a text or a binary file in an application, do not forget to consult the file name in your code java as in the examples that I gave above.

Tags: BlackBerry Developers

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