Business Intelligence – Oracle

Archive for May 21st, 2009

Oracle BI EE 10.1.3.4.1 – Scheduling Essbase/Planning Calculation Scripts – Action Framework & Custom Java Remote Procedure calls

Posted by Venkatakrishnan J on May 21, 2009

In the blog entry here, i had shown you how to run an essbase calculation script from the BI EE dashboards. To make it even more complete, lets look at a means of calling a calculation script through BI Scheduler. So, our idea is to use BI EE as a scheduler to schedule Essbase/Planning calculations. In order to do that there are certain pre-requisites. I have covered this in my blog entry before here. Once the setup is done, lets open the JDeveloper and create a new project. Include the schedulerrpccalls.jar, Ess_japi.jar and Ess_es_server.jar as part of the project properties.

The idea is to basically write a custom java program which in turn will run an Essbase calculation script through the Java API. The java program would then be bundled in the form of a jar file and called from an iBot. Use the below code to login to Essbase and then to execute the calculation.

package bischeduler;

import java.io.*;

import com.siebel.analytics.scheduler.javahostrpccalls.SchedulerJavaExtension;
import com.siebel.analytics.scheduler.javahostrpccalls.SchedulerJobInfo;
import com.siebel.analytics.scheduler.javahostrpccalls.SchedulerJobException;

import com.essbase.api.base.*;
import com.essbase.api.dataquery.*;
import com.essbase.api.session.*;
import com.essbase.api.datasource.*;
import com.essbase.api.domain.*;
import com.essbase.api.metadata.*;

public class BIScheduler implements SchedulerJavaExtension{
    public BIScheduler() {   

        String s_userName = "admin";
        String s_password = "password";
        String s_olapSvrName = "localhost";
        String s_provider = "http://localhost:13080/aps/JAPI";

        try
        {
        IEssbase ess = IEssbase.Home.create(IEssbase.JAPI_VERSION);
        IEssDomain dom = ess.signOn(s_userName, s_password, false, null, s_provider);
        IEssOlapServer olapSvr = (IEssOlapServer)dom.getOlapServer(s_olapSvrName);
        olapSvr.connect();

        IEssCube cube = olapSvr.getApplication("Global").getCube("Global");
        String maxLstat = "import database 'Global'.'Global' data connect as 'global' identified by 'global' using server rules_file 'UnitsLd' on error abort;";
        //cube.loadData(IEssOlapFileObject.TYPE_RULES,"UnitsLd",0,"SH",false,"global","global");
        cube.calculate(false,"CalcAll");
        //cube.beginDataload("UnitsLd",IEssOlapFileObject.TYPE_RULES,"global","global",0);
        //IEssMaxlSession maxLsess = (IEssMaxlSession)dom.getOlapServer(s_olapSvrName);
        //maxLsess.execute(maxLstat);
        }catch (EssException x){
            System.out.println("ERROR: " + x.getMessage());
        }

    }
    public void run(SchedulerJobInfo jobInfo) throws SchedulerJobException{
        new BIScheduler();
        System.out.println("JobID is:" + jobInfo.jobID());
        System.out.println("Instance ID is:" + jobInfo.instanceID());
        System.out.println("JobInfo to string is:" + jobInfo.toString());
    }
    public void cancel(){};

        public static void main(String[] args) {
        new BIScheduler();

    }
}

Once this is done, create a deployment profile to bundle the code as a jar file. Ensure that the deployment also bundles the 3 jar files mentioned above. Then deploy the jar file.

Now copy the deployed jar file to the {OracleBI}\web\javahost\lib directory (or a directory that you have mentioned as the lib path in the Java host config.xml). Now create an ibot and then in the advanced tab call the deployed jar file as shown below.

You can create ibots in such a way that once the java class run is completed, it would trigger another ibot to deliver a report based on an Essbase cube. This will ensure that the administrator is sure of the fact that the calculation has run successfully.

Now you should be able to run essbase calculations from BI Scheduler directly.  One can even run ODI packages using BI EE. I would cover that as well in future. Keep watching this space next week for a method to do write backs into Essbase. I would present a couple of methods and both of them can be used effectively in a prod like environment.

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