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From Daniel Rall <...@finemaltcoding.com>
Subject Re: cvs commit: jakarta-commons/lang/src/java/org/apache/commons/lang StringUtils.java
Date Tue, 06 Aug 2002 22:19:00 GMT
This code is in use in the decompose() method of the
org.apache.commons.lang.exception.NestableDelegate class.  It would
makes sense if NestableDelegate could find a way to use this new
method.

This method would also make more sense in a new class, ThrowableUtils,
with a signature like toStackTrace(Throwable).  Wrapping a
toStrackTraceBuffer(Throwable) : StringBuffer method might make sense
as well.

- Dan

bayard@apache.org writes:

> bayard      2002/08/01 13:15:43
> 
>   Modified:    lang/src/java/org/apache/commons/lang StringUtils.java
>   Log:
>   Added a stackTrace method. Possibly needs renaming. It's in common use in
>   other Jakarta projects such as Ant. Turns a Throwable into a String.
>   
>   Revision  Changes    Path
>   1.6       +15 -1     jakarta-commons/lang/src/java/org/apache/commons/lang/StringUtils.java
>   
>   Index: StringUtils.java
>   ===================================================================
>   RCS file: /home/cvs/jakarta-commons/lang/src/java/org/apache/commons/lang/StringUtils.java,v
>   retrieving revision 1.5
>   retrieving revision 1.6
>   diff -u -r1.5 -r1.6
>   --- StringUtils.java	26 Jul 2002 01:40:11 -0000	1.5
>   +++ StringUtils.java	1 Aug 2002 20:15:43 -0000	1.6
>   @@ -60,6 +60,7 @@
>    import java.io.OutputStreamWriter;
>    import java.io.OutputStream;
>    import java.io.PrintWriter;
>   +import java.io.StringWriter;
>    import java.io.IOException;
>    import java.util.NoSuchElementException;
>    import java.util.StringTokenizer;
>   @@ -1565,6 +1566,19 @@
>            // Step 7
>            return d[n][m];
>        }
>   +
>   +    /**
>   +     * Convenient method to retrieve the full stacktrace from a given exception. 
   * @param t the exception to get the stacktrace from.
>   +     * @return the stacktrace from the given exception.
>   +     */
>   +    public static String getStackTrace(Throwable t) {
>   +        StringWriter sw = new StringWriter();
>   +        PrintWriter pw = new PrintWriter(sw, true);
>   +        t.printStackTrace(pw);
>   +        pw.flush();
>   +        pw.close();
>   +        return sw.toString();
>   +    }   
>    
>    // these are not really of use in the Java world. Only if you're a C afficionado
>    //    public static String sprintf(String format, Object[] list);
-- 

Daniel Rall <dlr@finemaltcoding.com>

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