Hi Jona ,
> > i noticed that the full version of IOUtils file is in the dump branch
> unlike
> > the master branch
> >
> https://github.com/dbpedia/extraction-framework/blob/dump/core/src/main/scala/org/dbpedia/extraction/util/IOUtils.scala
> >
> > so i pulled that file exclusively from the dump branch merged it to the
> > local branch
> > i written small test code to utilize the IOUtils when compiling i faced
> the
> > following errors :
> >
> > object compress is not a member of package org.apache.commons
> > import
> >
> org.apache.commons.compress.compressors.bzip2.{BZip2CompressorInputStream,BZip2CompressorOutputStream}
> > ^
>
> That's because on the master branch, core/pom.xml does not declare the
> dependency on commons-compress.
>
>
in the master branch , it was declared in the outer Pom.xml file , isn't it
supposed to define global dependencies ?
it worked when i added it in the core/pom.xml
> > value charSet is not a member of java.nio.charset.Charset
> > def writer(file: FileLike[_], charset: Charset = Codec.UTF8.charSet):
> > Writer =
> > ^
> > value charSet is not a member of java.nio.charset.Charset
> > def reader(file: FileLike[_], charset: Charset = Codec.UTF8.charSet):
> > Reader =
>
> That's because the Scala people do not care much about backwards
> compatibility (and neither do I, I must admit).
>
> In Scala 2.9.2 (used on master branch), Codec.UTF8 had type Charset:
>
> http://www.scala-lang.org/api/2.9.2/index.html#scala.io.Codec$
> final val UTF8: Charset
>
> In Scala 2.10.1 (used on dump branch), Codec.UTF8 has type Codec:
>
> http://www.scala-lang.org/api/2.10.1/index.html#scala.io.Codec$
> final val UTF8: Codec
>
>
that's correct the Codec.UTF-8 is of type Codec in scala.10 , but this
wasn't the problem specifically
actually i was still using scala 2.9 (depending on the master pom file)
the problem was that Codec.UTF-8 didnt have charSet member
this worked fine with me (scala 2.9):
def writer(file: FileLike[_], charset: Charset = Codec.UTF8): Writer =
and i guess it should be for scala 2.10 :
def writer(file: FileLike[_], charset: Codec = Codec.UTF8): Writer =
> it seems that there's something not included in the packages
> apache.commons
> > and Code.UTF-8
> > should i pull the whole dump branch from Github ?
>
> You could try that. It would mean that your code is incompatible with
> the master branch until we merge my changes from the dump branch. Not
> terribly bad, but not very good either.
>
> or this is because
> > another thing ?
>
> You could also just copy & paste the new methods from IOUtils.scala to
> your own class and add the commons-compress dependency to your
> pom.xml
merging would create conflicts , even it would be a little messy but i'd
copy the methods
even selectively pulling new updates in the core/IOUtils.scala would make
conflicts because there's other IOUtils object in the scripts in the master
branch, so let's copy the methods for now
*one last Question : *
i noticed IOUtils.inputStream method takes FileLike abstract object
i used the implemented class RichFile , didn't know if that's it's main
function but it worked fine , would that be a problem?
val file = new RichFile(fileName)
val in = org.dbpedia.extraction.util.IOUtils.inputStream(file)
val lines = Source.fromInputStream(in,"UTF-8").getLines()
-------------------------------------------------
Hady El-Sahar
Research Assistant
Center of Informatics Sciences | Nile University<http://nileuniversity.edu.eg/>
email : [email protected]
Phone : +2-01220887311
http://hadyelsahar.me/
<http://www.linkedin.com/in/hadyelsahar>
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