pillServer - a fork of the ilias Lucene RPC-Server (ilServer)

This code is based on the original ILIAS code (https://github.com/ILIAS-eLearning/ILIAS/commit/f7c2611d8b3eaea9be8afb6726bd6073d852a783)

1. Apache Lucene
   1. Requirements 2.Installation
   2. Create a Server Configuration File
   3. Start the server:
   4. Creating a new Lucene index:
   5. Updating an existing index:
   6. Performing a query
2. Preparing ILIAS
3. Starting Lucene server at boot time
   1. SysV-Init

Cron Schedule documentation: https://www.quartz-scheduler.org/documentation/quartz-2.3.0/tutorials/crontrigger.html

Apache Lucene

Apache Lucene is a high-performance, full-featured text search engine library written entirely in Java. It is a technology suitable for nearly any application that requires full-text search, especially cross-platform.

Requirements

This Java server has been tested with Open JDK Java Runtime 1.8. To be able to index and search for non-ASCII characters your system should support UTF-8 encodings.

PHP curl and xmlrpc are required for using the Java server features.

On Debian based systems try:

bash$ apt-get install php5-curl curl php5-xmlrpc

Installation

Create a Server Configuration File

Open the java server configuration in Administration -> General Setting Java-Server and click the button Create Configuration File.

Fill the form and download the configuration file. Save the newly created file (ilServer.ini) on your ILIAS server, the file location doesn't matter.

Start the server:

MySQL backends:

bash$ java -Dfile.encoding=UTF-8 -jar <PATH_TO_SERVER>/ilServer.jar <PATH_TO_SERVER_INI> start &

Oracle Backends:

The Oracle licence is very restrictive. Thus it is not possible to release an all-in-one package including an Oracle-JDBC-Driver.

Download an appropriate JDBC-Thin-Client from:

http://www.oracle.com/technology/software/tech/java/sqlj_jdbc/htdocs/jdbc_10201.html

The following packages are required:

ojdbc14.jar
orai18n.jar

Start the Java-Server including these packages to your CLASSPATH:

bash$java -Dfile.encoding=UTF-8 -cp "<PATH_TO_ojdbc.jar>:<PATH_TO_orai18n.jar>:ilServer.jar" de.ilias.ILServer <PATH_TO_SERVER_INI> start &

To stop the server simply type:

bash$ java -jar <PATH_TO_SERVER>/ilServer.jar <PATH_TO_SERVER_INI> stop

Show the server status:

bash$ java -jar <PATH_TO_SERVER>/ilServer.jar <PATH_TO_SERVER_INI> status

Possible return values are:

Running
Stopped
Indexing

Creating a new Lucene index:

bash$ java -jar <PATH_TO_SERVER>/ilServer.jar <PATH_TO_SERVER_INI> createIndex <CLIENT> &

The <CLIENT_INFO> is a combination of the client id and the installation id. You find these values in the table "Administration -> Server Data".

Example:

bash$ java -jar <PATH_TO_SERVER>/ilServer.jar <PATH_TO_SERVER_INI> createIndex ilias40_4000 &

or

bash$ java -jar <PATH_TO_SERVER>/ilServer.jar <PATH_TO_SERVER_INI> createIndex ilias40_0 &

if no installation id is given.

Updating an existing index:

bash$ java -jar ilServer.jar <PATH_TO_SERVER_INI> updateIndex <CLIENT> &

Performing a query

bash$ java -jar <PATH_TO_SERVER>/ilServer.jar <PATH_TO_SERVER_INI> search <CLIENT> "ilias"

Preparing ILIAS

• Log in to ILIAS
• Setup up the Lucene Host and Port in Administration -> General settings -> Java-Server
• Enable Lucene Search
• Enable the option Lucene search in Administration -> Search -> Settings.

Starting Lucene server at boot time

SysV-Init

To start the Lucene RPC server automatically at boottime, follow these instructions:

Change the working directory to /etc/init.d/ and create a file named ilserver

bash$ cd /etc/init.d  # Adjust this path according to your distribution
bash$ vi ilserver

with this content

#!/bin/bash
### BEGIN INIT INFO
# Provides:          ilServer
# Required-Start:    $remote_fs $network
# Required-Stop:     $remote_fs $network
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Start ilServer instances
# Description:       Debian init script for starting ilServer instances
### END INIT INFO

JAVABIN=/usr/bin/java
ILIASDIR=/var/www/ilias            # Type in the root directory of your ILIAS installation
IL_SERVER_INI=/path_to_server_ini  # Type in the path to your ilserver.ini

case "$1" in
    start)
    echo "Starting ILIAS Java-Server"
        $JAVABIN -Dfile.encoding=UTF-8 -jar $ILIASDIR/Services/WebServices/RPC/lib/ilServer.jar $IL_SERVER_INI start &
    ;;

    stop)
        echo "Shutting down ILIAS Java-Server"
        $JAVABIN -jar $ILIASDIR/Services/WebServices/RPC/lib/ilServer.jar $IL_SERVER_INI stop
        ;;
        
    status)
        $JAVABIN -jar $ILIASDIR/Services/WebServices/RPC/lib/ilServer.jar $IL_SERVER_INI status
        ;;      

    restart)
        $0 stop
        sleep 2
        $0 start
        ;;

    *)
        echo "Usage: $0 {start|stop|status|restart}"
        exit 1
esac

exit 0

Change the file permissions by typing

bash$ chmod 750 ilserver

You can start the ILIAS Java-Server by typing:

bash$ /etc/init.d/ilserver start

stop it:

bash$ /etc/init.d/ilserver stop

restart it:

bash$ /etc/init.d/ilserver restart

or receive the status:

bash$ /etc/init.d/ilserver status

You can start the ILIAS Java-Server automatically at boottime by executing update-rc.d ilserver enable or linking /etc/init.d/ilserver to /etc/rc.X (where X is the desired runlevel).