using PrintWriter in BIRT

neetira · 2009-03-19T14:21:49+00:00

Hi I have used the following in the initialize function of a BIRT report: importPackage(Packages.java.io); fos = FileOutputStream("C:logFile1.txt"); printWriter = PrintWriter(fos); printWriter.println("ReportDesign.Initialize"); the file "logFile1.txt" is created, but…

neetira

Hi

I have used the following in the initialize function of a BIRT report:

importPackage(Packages.java.io);

fos = FileOutputStream("C:logFile1.txt");
printWriter = PrintWriter(fos);
printWriter.println("ReportDesign.Initialize");

the file "logFile1.txt" is created, but nothing is written in it.

I saw in a lot of examples that "ReportDesign.Initialize" should be present in it.

Is this the right way to use PrintWriter?

I have :
var myid = request.getAttribute("a1");
printWriter.println(myid) ; OR printWriter.println("myid);

I want the value present in "myid" to be written in the logFile1.txt.

How do I do this?

thanks
Neeti

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Comments

cypherdj

Try the following instead: 
<pre class='_prettyXprint _lang-auto _linenums:0'>
importPackage(Packages.java.io);
logFileName = "c:/Work/tools/apache-tomcat-5.5.25/logs/birt.log";

out = new PrintWriter(new FileWriter(logFileName, true)); // creates a new print writer to output log statements to

out.println("Entering myReport.initialise");

var myid = request.getAttribute("a1");
out.println(myid);

out.close();
</pre>
 
Regards, 
Cedric

neetira

thanks a lot, cypherdj . it worked....

do you know why it didnt work when i used FileOutputStream?

neeti

cypherdj

Hi Neeti, 
 
from the code you posted, you missed the keyword "new" when creating the FileOutputStream and PrintWriter. Your code would probably work if you added them like : 
 
<pre class='_prettyXprint _lang-auto _linenums:0'>
importPackage(Packages.java.io);

fos = new FileOutputStream("C:logFile1.txt");
printWriter = new PrintWriter(fos);
printWriter.println("ReportDesign.Initialize");
</pre>

neetira

hi cypherdj

I tried the code which you showed. It still didnt work.

neeti

dingdong

write this at the end.. it shud work:
printWriter.flush();

gowtham

How to get the entire query in a text file after running the report?
 
I am using some replace script in my query which ends with error.. I need to validate the query.
If i get its output after execution i can validate.

JFreeman

You can output the final this.queryText in the beforeOpen of the Data Set.
 
I believe the FileOutputStream code from earlier in this thread should work for that. Otherwise, you could also implement a java logger from java.util.logging.

gowtham

Hi Freeman,
 
I tried the code mentioned above. its not working. 
Could you please guide me what exactly to be placed in before open.
 
Thanks in advance.

JFreeman

In the beforeOpen of the Data Set you can use code like the following to write to a file.
<pre class="_prettyXprint _lang-js">
importClass(java.io.File);
importClass(java.io.FileOutputStream);

var logFileLocation = new File("c:/temp/bdoutputlog.log");
var outputStream = new FileOutputStream(logFileLocation);

if (!logFileLocation.exists()) {
logFileLocation.createNewFile();
}

var contentInBytes = this.queryText.getBytes();

outputStream.write(contentInBytes);
outputStream.flush();
outputStream.close();</pre>

gowtham

Thanks Jesse.. It's working fine.

JFreeman

You're welcome.
 
Let us know if you have any additional questions.