----- Original Message -----
From: "Stephane Chauvin" <[EMAIL PROTECTED]>
> Magesh,
> Sorry to miss the great org/apache/tools/ant/filters package. It is a good
> job!
>
> For my needs, I have 2 questions:
> 1) I need to comment out my token, otherwise the compilation fails. And I
> have to compile before the replacement to use the serialver program. If I
am
> using ReplaceTokens, the comment characters are not replaced. Example:
>
> import java.io.Serializable;
> public class Test implements Serializable {
> //@serialVersionUID@ // Serial Version UID
>
> public Test(){
>
> }
> }
> the result should be:
> import java.io.Serializable;
> public class Test implements Serializable {
> private static final long serialVersionUID = 2010307013874058143L;
//
> Serial Version UID
>
> public Test(){
>
> }
> }
>
> A solution could be to define the "beginToken" to "//@". But this requires
> to change the definition of setBeginToken(char beginToken) to accept a
> String instead of a Char. Moreover, the number of spaces between "//" and
> the first "@" should be fixed. It is a small detail, not a big deal.
You can achieve this with what is currently available,
but it is perhaps not as elegant as one would like it
to be:
<loadfile srcFile="Test.java" property="t">
<filterchain>
<replacetokens>
<token key="serialVersionUID" value="private static final long
serialVersionUID = 2010307013874058143L;"/>
</replacetokens>
<replacetokens begintoken="/" endtoken=" ">
<token key="/private" value="private "/>
</replacetokens>
</filterchain>
</loadfile>
<echo message="${t}"/>
>
> 2) The second point is about the token value. I do not know the token
value
> until I find the token key in the file. I run the serialver program on a
> class when I read the token in the source file. It is not a good idea to
run
> serialver before to parse the source file because this program fails when
it
> is not a Serializable class. It means it will be difficult to see the
> difference between an user error (when there is a token in a bad file),
and
> the normal reject. And I also prefer to print in the ANT output the SUID
> (serialver task) only when a file is tagged with this token, and not for
all
> the serializable files.
>
> I probably need to extend BaseFilterReader and create my own filterreader.
> Is that make sense?
>
Yes, it makes sense to write a special filterreader for this.
Instead of having replacesuid as a task, implement it as a
filterreader... If you do so, you can automatically use
it in <copy>, <move>, <loadfile> (and a few other tasks in the
future). Your task need not bother about creating the actual
file, etc. It can be delegated to the parent task that uses
the filterreader.
> Thank you for any suggestions,
> Stephane.
>
Cheers,
Magesh
**********************************************
* Wisdom comes to those who live long enough *
* to see things twice. *
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