Added stuff and knowhow for running java applications on linux clients

git-svn-id: svn+ssh://cvs.lpds.sztaki.hu/var/lib/svn/szdg/dcapi/trunk@1073 a7169a2c-3604-0410-bc95-c702d8d87f7a

dcapi/java/example/boinc-java-launcher

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+#!/bin/sh
+
+#
+# Script to launch java applications in a BOINC environment
+#
+
+set +v
+
+file=`sed -n '/^<soft_link>/ s/<[^>]*>//gp' libdc-jre.tar`
+
+jar=`sed -n '/^<soft_link>/ s/<[^>]*>//gp' Uppercase.jar`
+
+if
+  [ ! -d jre ]
+then
+  tar xzf $file
+fi
+
+  path=`pwd`
+
+  LD_LIBRARY_PATH=$path/lib
+  export LD_LIBRARY_PATH
+
+./jre/bin/java -jar $jar

dcapi/java/example/compile

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+#!/bin/sh
+
+javac uppercase.java
+
+jar cmf manifest Uppercase.jar Uppercase.class hu

dcapi/java/example/manifest

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+Main-Class: Uppercase

dcapi/java/jre-boinc/jre_for_boinc_guide.txt

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+Guide for preparing Java Runtime Environment (JRE) 
+for use in a BOINC infrastructure on Linux clients.
+---------------------------------------------------
+
+1. Requirements
+---------------
+
+   i. JRE available at http://java.sun.com/javase/downloads/index.jsp
+
+   ii. DC-API for java (libdc-java-client-0.9.so, libdc-boinc-client.so)
+
+2. Preparing 
+------------
+
+   i. Extract the 'bin' and 'lib' directories from the JRE distribution.
+      This can be done, by installing JRE on a machine and locating the
+      necessary directories in the installation directory.
+      Copy these two directories with all of their content to a directory
+      called jre.
+
+   ii. Put the files of DC-API in a directory called lib
+   
+   iii. Tar the contents of the above directories (jre, lib) in an archive
+	called lidc-jre.tar
+	eg.: tar czvf lidc-jre.tar jre lib
+
+
+3. Deploying a java application on a BOINC server
+-------------------------------------------------
+
+   i. The java application on BOINC consists of the following 
+      a. libdc-jre.tar - the jre prepared in part 2.
+      b. application.jar - the java application to be run in BOINC
+      c. launcher - script that untars jre and calls java with the
+	 jar of the application on the client computer
+   
+   ii. Give execution rights to the launcher script only.
+
+   iii. Proceed with signing the files and installing them to the boinc server as usual...
+
+