JBoss Drools and Drools Fusion (CEP): Making Business Rules react to RTE

Tihomir Surdilovic tsurdilo@redhat.comJBoss, a Division of Red Hat

Agenda

Project (Drools) vs. Product (BRMS)

Drools Vision

Drools History

Drools at a glance

Expert

Guvnor

JBPM5

Focus on Drools Fusion (CEP Extensions)

Event Declaration and Semantics

Event Cloud, Streams and the Session Clock

Temporal Reasoning

Sliding Window Support

Streams Support

Memory Management

Questions & Answers

Project vs. Product

Drools
Grid

Drools
Planner

Drools
Semantics

Drools
Chance Business Logic integration System

Drools
Guvnor

Drools
Fusion

jBPM5(Drools
Flow)

Drools
Expert

RepositoryRules and MetadataJBoss Enterprise BRMS Platform

JBoss RulesRules Engine/ Execution

Rules Development & Management

CEPComplex Events

Jboss EWP

Project vs. Product Cont.

derived Stand-alone Framework

Innovation

Fast and Frequent Releases

Tested on developer environments

Suitable for development and prototype

No Patches On to next big thing

Non SLA bound forum support

Fully Integrated Platform

Same Innovated Code + Stability

Stability Includes usability, performance and security issues identified during productization

Certified for Multi-OS, Multi-DB

Best for Development and Production

5 Yr lifecycle Includes patches, updates, backward compatibility

SLA based full support from dedicated support engineers

Open Source Assurance legal protection

Jboss community and Enterprise
Changes

Community / Enterprise Platform Delta

BRMS

5.0

5.1

5.1.0 Drools

Enterprise Platforms - Performance, Scalability, Security and Quality improves over time without
compromising long-term compatibility.

08/0912/1003/1105/11

44 bug fixes

8 perf. enhancements

6 security fixes

3 new features

41 bug fixes

4 security fixes

2 additional certs.

22 bug fixes

11 perf. enhancements

60 additional certs.

4 new features

5.1.05.1.1

Over 150+ defect fixes & 35+ OS/JVM/DB certifications (& counting) between Drools Community 5.1 & JBoss BRMS 5.1.x

150+ bug fixes

5 Security Fixes

5+ perf. enhancements

20+ additional certs.

Post GA Certs

15+ additional certs.

15+ bug fixes

Additional certs

Evolution of Jboss BRMS

Drools Framework05/08 04/09 12/10 ?

?

Lightweight Business Rules Engine

Business Rules Engine

Authoring and Management App

Repository

EAP Certified

DBs, JVMs

Business Rules Engine

Authoring and Management App

Choice of Repository

Integrated Container

CEP Tech Preview

EAP, EWS, EWP, JVMs, Dbs and more

Performance

Repository

JBoss Enterprise BRMS Platform 5.0

JBoss Rules

BRM

Repository

JBoss Enterprise BRMS Platform 5.1

JBoss Rules

BRM

CEP

Jboss EWP

A common platform to model and govern the business logic of the enterprise.

Drools Vision

EventProcessesSemantic
OntologiesWorkflowsRulesDrools Vision Cont.

Rules Workflows

EventProcesses

Semantic
Ontologies

Drools History Business Rule Engines

OPS5ARTClipsJessDrools 2JRules

1980s

2010s

Drools 3

1990s

2000s

Drools 4Drools 5

Drools History

Drools 2Rete like XML Scripting language

Drools 3 Based on Clips functionality

Iterative improves to JRules syntax with Clips functionality

Drools 4More declarative

Basic functional programming feature with from

Basic Rule Flow

Basic BRMS

Drools 5Improved functional programming with 'accumulate'

More Advanced Rule Flow integration

Complex Event ProcessTemporal Comparators

Sliding Time Windows

Production ready BRMS (Guvnor)

Drools History Cont.

Drools 5.1Differential Diff (true modify)

Drools 5.2 (this month, 5.2.0.CR1 available for download)Freeform expressions between patterns

Multi-function accumulates

Prolog like derivation queries

Decision tables and rule templates (Guvnor)

Pure GWT (Guvnor)

Sample Industries and Users

InvestmentMillennium Investment Group (MIG)

LogisticsFedex

AirlineSabre

MortgageFranklin American

HealthcareOSDE

Drools at a glance - Declarative programming

Production Rule Systems PRD (forward chaining)Reactive

when Alarm( status == alert )
then send( warning )

Logic Programming LP (backward chaining)Query

descendant( mary, jane)

Functional Programming FPMap,Fold, Filter

avg([12, 16, 4, 6])Returns single value 9.5

round([10.3, 4.7, 7.8] )Returns List [10, 5, 8]

Description Logic (model concepts, roles, and individuals)Person Has Name and
lives at Address

Drools Expert at a glance Example A - SQL comparison example

select * from Account acc, Cashflow cf, AccountPeriod apwhere acc.accountNo == cf.accountNo and cf.type == CREDIT cf.date >= ap.start and cf.date = ap.start && = ap.start && = ap.start &&