Created
June 30, 2018 09:08
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Update a java project that is using System.{out,err} for logging to use java.util.logger.
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# usage: | |
# ./with_logger.sh path_to_project_src | |
# | |
for f in `find $1 -type f -name \*java |xargs grep -l System.out`; | |
do | |
echo $f | |
# add import statement after package declaration | |
sed -i '0,/package.*/s//&\nimport java.util.logging.*;/' $f | |
# add Logger instance after class declaration | |
sed -i '0,/.*class [a-zA-Z]\+.*/s//&\n\tprivate static final Logger LOG = Logger.getLogger(Logger.GLOBAL_LOGGER_NAME);/' $f | |
# replace System.out.println with LOG.info | |
sed -i 's/System.out.println/LOG.info/g' $f | |
# replace System.err.println wiwth LOG.error | |
sed -i 's/System.err.println/LOG.severe/g' $f | |
# replace ex.printStackTrace with LOG.log(Level.WARNNING, ex.getMessage(), ex) | |
sed -i 's/\([a-zA-Z]\+\).printStackTrace()/LOG.log(Level.WARNING, \1.getMessage(), \1)/' $f | |
done |
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