Difference between revisions of "SUNScholar/Media Filters/4.X"

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  cd $HOME/temp  
 
  cd $HOME/temp  
  
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  curl -O wget https://m2.duraspace.org/content/repositories/thirdparty/org/fcrepo/jai_core/1.1.2_01/jai_core-1.1.2_01.jar
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  wget https://m2.duraspace.org/content/repositories/thirdparty/org/fcrepo/jai_core/1.1.2_01/jai_core-1.1.2_01.jar
  
 
<pre>
 
<pre>

Revision as of 12:25, 22 December 2014

Back to Media Filters

Requirements

Please note: This is an untested procedure. It is a work in progress. 

http://wiki.lib.sun.ac.za/index.php/SUNScholar/Install_DSpace/S03#Step_3.2

Step 1 - Login to the server

http://wiki.lib.sun.ac.za/index.php/SUNScholar/Prepare_Ubuntu/S01

Step 2 - Install the Ubuntu software packages

Type the following: 

sudo apt-get install xpdf poppler-utils libjai-core-java libjai-imageio-core-java

Step 3 - Install the java packages

Step 3A - Install "jai_imageio.jar"

mkdir $HOME/temp 

cd $HOME/temp

curl -O http://download.java.net/media/jai-imageio/builds/release/1.1/jai_imageio-1_1-lib-linux-i586.tar.gz

tar -xzvf jai_imageio-1_1-lib-linux-i586.tar.gz

 mvn install:install-file \
                    -Dfile=jai_imageio-1_1/lib/jai_imageio.jar  \
                    -DgroupId=com.sun.media                     \
                    -DartifactId=jai_imageio                    \
                    -Dversion=1.0_01                            \
                    -Dpackaging=jar                             \
                    -DgeneratePom=true

Step 3B - Install "jai_core.jar"

mkdir $HOME/temp 

cd $HOME/temp 

wget https://m2.duraspace.org/content/repositories/thirdparty/org/fcrepo/jai_core/1.1.2_01/jai_core-1.1.2_01.jar

mvn install:install-file \
                    -Dfile=jai_core-1.1.2_01.jar  \
                    -DgroupId=javax.media                      \
                    -DartifactId=jai_core                      \
                    -Dversion=1.1.2_01                         \
                    -Dpackaging=jar                            \
                    -DgeneratePom=true

Step 4 - Configuration

Step 4A

First, be sure there is a value for thumbnail.maxwidth and that it corresponds to the size you want for preview images for the UI.

Edit the "dspace.cfg" file. 

nano /home/dspace/source/config/dspace.cfg

Search for the following and modify. 

# maximum width and height of generated thumbnails
thumbnail.maxwidth  = 80
thumbnail.maxheight = 80

Step 4B

Search for "filter.plugins" and replace with the following. 

filter.plugins = \
        PDF Text Extractor, \
        PDF Thumbnail, \
        HTML Text Extractor, \
        Word Text Extractor, \
        JPEG Thumbnail, \
        Branded Preview JPEG

Step 4C

Change the MediaFilter plugin configuration to remove the old "org.dspace.app.mediafilter.PDFFilter" and add the new filters "org.dspace.app.mediafilter.XPDF2Text = PDF Text Extractor" and "org.dspace.app.mediafilter.XPDF2Thumbnail = PDF Thumbnail". Replace with the following. 

plugin.named.org.dspace.app.mediafilter.FormatFilter = \
  org.dspace.app.mediafilter.XPDF2Text = PDF Text Extractor, \
  org.dspace.app.mediafilter.XPDF2Thumbnail = PDF Thumbnail, \
  org.dspace.app.mediafilter.HTMLFilter = HTML Text Extractor, \
  org.dspace.app.mediafilter.WordFilter = Word Text Extractor, \
  org.dspace.app.mediafilter.JPEGFilter = JPEG Thumbnail, \
  org.dspace.app.mediafilter.BrandedPreviewJPEGFilter = Branded Preview JPEG

Step 4D

Then replace "filter.org.dspace.app.mediafilter.PDFFilter.inputFormats = Adobe PDF" with the following: 

filter.org.dspace.app.mediafilter.XPDF2Thumbnail.inputFormats = Adobe PDF
filter.org.dspace.app.mediafilter.XPDF2Text.inputFormats = Adobe PDF

Step 4E

Before the comment"#Custom settings for PDFFilter" add the following: 

#The paths to the XPDF utilities
xpdf.path.pdftotext = /usr/bin/pdftotext
xpdf.path.pdftoppm  = /usr/bin/pdftoppm
xpdf.path.pdfinfo   = /usr/bin/pdfinfo

Step 4 - Build and Install

Perform the following as the "dspace" user.

To build, type the following: 

cd /home/dspace/source

mvn -Pxpdf-mediafilter-support package

To install, type the following: (Replace XXX with your DSpace version number) 

cd /home/dspace/source/dspace/target/dspace-XXX-build

ant update

ant clean_backups

References

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