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+====== PHAROS Image/Video indexing ======
+Instructions for installing PHAROS Image/Video indexing with Greenstone3. Based on GCC 4.4.3 and Ubuntu Linux 10.4 (Lucid Lynx).
+//Initial instructions by Katherine Don, with modifications thanks to Evan Brown and Suzanne Little, Knowledge Media Institute //
+===== Check tools=====
+We use svn 1.5 and ant 1.7.1 and java 1.6.
+  svn --version
+  ant -version
+  java --version
+ANT_HOME and JAVA_HOME should be set, and the correct versions on your path.
+Especially with a fresh install check that the following packages are installed: gettext, automake, autoconf, libtool, libmp4v2, libglib-2.0-dev(+dependencies), libgsf-1-dev(+dependencies), libpng12-dev. The build-essentials package might help also. Make sure it's sun java and not openJDK or icedtea!
+=====checkout greenstone3=====
+  svn co http://svn.greenstone.org/main/trunk/greenstone3 pharos-greenstone3
+  cd pharos-greenstone3
+Generate build.properties from build.properties.in
+  ant
+At this stage, you may like to change tomcat's port number (default is 8080) in build.properties (and shutdown port too if you have or are likely to have more than one tomcat running). This is also the place to add proxy settings if required.
+Check out building and other supplementary code
+  ant prepare
+=====checkout extensions=====
+  cd ext
+  svn co http://svn.greenstone.org/gs3-extensions/pharos-videois/trunk pharos-videois
+  svn co http://svn.greenstone.org/gs3-extensions/pharos-imageis/trunk pharos-imageis
+  cd ../gs2build/ext
+  svn co http://svn.greenstone.org/gs2-extensions/video-and-audio-src/trunk video
+  cd ../../
+=====compile=====
+Prior to running the Ant install build script, if you are running with GCC 4.4.x and/or the latest release of Ubuntu Linux (10.4 Lucid Lynx), the following changes and steps are required:
+.  pharos-greenstone3/gs2build/common-src/indexers/mgpp/text/mg_files.cpp:
+Line 45:  Change to const char *s (to avoid invalid conversion error).
+.  Make sure that the GNU Gettext package is installed - to avoid a missing msgfmt error during compile.
+On Ubuntu with standard repositories enabled, this is accomplished most easily by: sudo apt-get install gettext
+.  Make sure that automake and autoconf packages are installed and available.
+.  The faac audio encoder module: changes are required to pharos-greenstone3/gs2build/ext/video/build-srcpack/packages/faac-1.26/configure.in so that an appropriate Makefile is generated in the mp4v2 folder.
+Remove line:
+ AC_DEFUN(MY_DEFINE, [ AC_DEFINE($1, 1, [define if needed]) ])
+Replace with:
+ AC_DEFUN([MY_DEFINE], [ AC_DEFINE($1, 1, [define if needed]) ])
+Remove:
+ AC_OUTPUT(common/Makefile common/mp4v2/Makefile \
+ libfaac/Makefile frontend/Makefile \
+ include/Makefile Makefile)
+Replace with:
+ AC_CONFIG_FILES(common/Makefile)
+ AC_CONFIG_FILES(common/mp4v2/Makefile)
+ AC_CONFIG_FILES(libfaac/Makefile)
+ AC_CONFIG_FILES(frontend/Makefile)
+ AC_CONFIG_FILES(include/Makefile)
+ AC_CONFIG_FILES(Makefile)
+ AC_OUTPUT
+Then do autoreconf –vif to rebuild the makefiles
+.  Ruby 1.86 package: a change is required to pharos-greenstone3/gs2build/ext/video/build-srcpack/packages/ruby-1.8.6/math.c
+Line 37: change to start #elif defined( rather than #elif define( This is fixed in Ruby 1.87 which is the currently used version.
+Now proceed with the installation:
+<code>
+  ant install
+  source gs3-setup.sh
+compile video extension
+  cd  gs2build/ext/video
+  ./CASCADE-MAKE.sh
+</code>
+You can ignore the instruction about AddHandler and httpd.conf - that is for Apache in GS2.
+<code>
+compile gs3 extensions
+  cd ../../../ext/pharos-imageis
+</code>
+Copy the axis jar files into tomcat:
+<code>
+  mkdir ../../packages/tomcat/sharedlibs
+  cp lib/*.jar ../../packages/tomcat/sharedlibs
+</code>
+Edit tomcat's properties file:
+<code>
+  emacs ../../packages/tomcat/conf/catalina.properties
+</code>
+Find the shared.loader property and set it to the following:
+<code>
+  shared.loader=${catalina.home}/sharedlibs/*.jar
+</code>
+To compile and install pharos:
+<code>
+  ant configure   #generates config files
+  ant compile  #compiles code
+  ant install  #copies files into greenstone3 area
+  cd ../..
+</code>
+(Note, there is nothing to do to set up pharos-videois)
+=====Test Greenstone3=====
+<code>
+ source gs3-setup.sh
+ pharos-start-derby.pl
+ ant start
+</code>
+Then visit in a browser the URL printed on the screen
+Choose 'standard servlet' => should be .../gs3library in URL, not ../library.
+=====Collection building=====
+Note, pharos derby database and tomcat need to running before building the collections.
+If you use a new terminal, 'source gs3-setup.sh' must be run in top level pharos-greenstone3 folder before you can run the perl scripts.
+====Build an image collection====
+We have prepared a sample collection - contains some images and an appropriate config file. The images don't matter, but the config file can be tricky to set up.
+Download the collection from http://www.cs.waikato.ac.nz/~kjdon/pharos/image-demo.tgz, unpack into pharos-greenstone3/web/sites/localsite/collect
+Build the collection:
+<code>
+  import.pl -site localsite image-demo
+  buildcol.pl -site localsite image-demo
+</code>
+inside web/sites/localsite/collect/image-demo, rename building to index (delete old index if rebuilding)
+Retstart tomcat:
+'ant restart' in top level pharos-greenstone3
+Tomcat must be restarted to (re)load the collection (can also be done with a=s&amp;sa=c arguments to gs3library in browser), and to reload the derby database for pharos - it seems to cache the contents?
+View the collection - go back to browser and reload your greenstone3 home page.
+From browse->titles, can see a list of documents, then click on one and get to the document page. From here can find similar images *from the current collection*. It shouldn't be too hard to modify this to find images across all collections. The search is currently returning all results and we are filtering out the ones from this collection. So could just leave them all in. But then need to link to those images. And would there be images in the database that are not in a greenstone collection for this servlet?
+====Build a video collection====
+We have prepared a sample collection - contains some videos and an appropriate config file. The config file can be tricky to set up. And the sample videos are ones that we know can be converted to the correct form. Also contains flash stuff for streaming video player.
+Download the collection from http://www.cs.waikato.ac.nz/~kjdon/pharos/video-demo.tgz, unpack into pharos-greenstone3/web/sites/localsite/collect
+Need to change the default collectionConfig.xml on line 60 should be:
+<code>
+  <option name="-enable_streaming" value="flv"/>
+</code>
+Build the collection:
+<code>
+  import.pl -site localsite video-demo
+  buildcol.pl -site localsite video-demo
+</code>
+inside web/sites/localsite/collect/video-demo, rename building to index (delete old index if rebuilding)
+Retstart tomcat:
+'ant restart' in top level pharos-greenstone3
+Go to home page and click on Pharos Video Demo.
+====To make a new collection:====
+<code>
+  mkcol.pl -site localsite <collname>
+</code>
+Will make a new collection in pharos-greenstone3/web/sites/localsite/collect/collname
+Put images and/or videos into the import directory.
+Modify the etc/collectionConfig.xml file. Would be best to copy the image/video demo one probably, and make any appropriate modifications.
+Need to copy the flash directory to the new collection so videos will display embedded in the page:
+<code>
+  cp -r $GSDL3SRCHOME/gs2build/ext/video/web/flash $GSDL3SRCHOME/web/sites/localsite/collect/video-demo/
+</code>
+Then run the import and build scripts as above, rename building to index, and restart tomcat.
+=====When things go wrong=====
+  * Greenstone log file is in web/logs/greenstone.log
+  * Tomcat log file is in packages/tomcat/logs/catalina.out
+====NoClassDefFoundError====
+The above directions may be enough to get a working version. However if you get a java.lang.NoClassDefFoundError: org/apache/axis2/client/Stub or similar when trying to view the collections page after setting up image or video collections then the following may fix it. The underlying cause seems to be some issue with the tomcat shared.loader not finding the extra jars for pharos_image in the sharedlib directory.
+<code>
+  cp $GSDL3SRCHOME/packages/tomcat/sharedlib/*.jar $GSDL3SRCHOME/web/WEB-INF/lib/
+  ant restart
+</code>