Drools was created as a rule engine but has expanded to become a business modeling platform through the integration of business rule management, business process management, and complex event processing. It achieves this through modules like Drools Expert (rules), Drools Flow (processes), Drools Fusion (events), and Drools Planner (planning). Drools Guvnor provides a centralized repository for managing knowledge bases. The platform uses a declarative approach to represent business logic and processes through rules, events, and planning constraints.
Developing Complex Business Rules with Drools IntegrationBonitasoft
Create rich and dynamic rule driven business process applications with the Bonita Open Solution BPM Suite.
Learn how to add business rules to your process transitions easily with decision tables in the Bonita Studio for process modeling, and for more complex rules, use the Drools Connector to call shared rules.
Developing Complex Business Rules with Drools IntegrationBonitasoft
Create rich and dynamic rule driven business process applications with the Bonita Open Solution BPM Suite.
Learn how to add business rules to your process transitions easily with decision tables in the Bonita Studio for process modeling, and for more complex rules, use the Drools Connector to call shared rules.
This session will be about maintaning the store on client side with redux, And will have more details about state management addressing single source of truth concept
Exploring the power of Gradle in android studio - Basics & BeyondKaushal Dhruw
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What you can expect:
1. Just enough gradle to get started.
2. Creating simple and custom gradle tasks.
3. Gradle in android studio
4. Exploring product flavors
5. Using product flavors to our advantage.
6. facebook's stetho debug bridge and configuration via flavors.
This presentation will demonstrate how you can use the aggregation pipeline with MongoDB similar to how you would use GROUP BY in SQL and the new stage operators coming 3.4. MongoDB’s Aggregation Framework has many operators that give you the ability to get more value out of your data, discover usage patterns within your data, or use the Aggregation Framework to power your application. Considerations regarding version, indexing, operators, and saving the output will be reviewed.
Django is a open source framework written in Python, was designed to save Web developers time and money by promoting the idea of reusing code and avoiding replication. As with any language, programmers interviewing for a job involving Django are going to face a series of specialized questions.
Explanation of the fundamentals of Redux with additional tips and good practices. Presented in the Munich React Native Meetup, so the sample code is using React Native. Additional code: https://github.com/nacmartin/ReduxIntro
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Exploring the power of Gradle in android studio - Basics & BeyondKaushal Dhruw
In this presentation we will explore the official build system of android studio. Gradle. We will discuss about Gradle basics, Gradle Wrapper and its usage in android studio. We will explore the possibilities with gradle by covering beginner and advanced level topics.
What you can expect:
1. Just enough gradle to get started.
2. Creating simple and custom gradle tasks.
3. Gradle in android studio
4. Exploring product flavors
5. Using product flavors to our advantage.
6. facebook's stetho debug bridge and configuration via flavors.
This presentation will demonstrate how you can use the aggregation pipeline with MongoDB similar to how you would use GROUP BY in SQL and the new stage operators coming 3.4. MongoDB’s Aggregation Framework has many operators that give you the ability to get more value out of your data, discover usage patterns within your data, or use the Aggregation Framework to power your application. Considerations regarding version, indexing, operators, and saving the output will be reviewed.
Django is a open source framework written in Python, was designed to save Web developers time and money by promoting the idea of reusing code and avoiding replication. As with any language, programmers interviewing for a job involving Django are going to face a series of specialized questions.
Explanation of the fundamentals of Redux with additional tips and good practices. Presented in the Munich React Native Meetup, so the sample code is using React Native. Additional code: https://github.com/nacmartin/ReduxIntro
JavaScript basics
JavaScript event loop
Ajax and promises
DOM interaction
JavaScript object orientation
Web Workers
Useful Microframeworks
This presentation has been developed in the context of the Mobile Applications Development course, DISIM, University of L'Aquila (Italy), Spring 2014.
http://www.ivanomalavolta.com
JBoss Drools and Drools Fusion (CEP): Making Business Rules react to RTEtsurdilovic
This session will introduce JBoss Drools - Popular business rules engine and JBoss Drools Fusion - a complex event processing engine which is an extension to business rules.
Business Rules bring in a new paradigm of programming which helps effectively separate business policies and application code. Enterprises can now build agile applications that quickly react to change in market conditions or internal operations.
Bringing in complex event processing into the same paradigm, these applications can now react to real time events in the business environment. Essentially with the use of Business Rules and CEP enterprise applications can be lot more agile than ever before.
Drools is a Rule Engine that uses the rule-based approach to implement an Expert System
The inference engine matches the rules against the facts (objects) in memory and can match the next set of rules based on the changed facts.
Please use the presentation and the source code referred in the presentation to get started on what a rule engine is and how to use JBoss Drools for inference based rules using the Java programming language.
Refactoring can either completely disrupt your project or make you go faster. This presentation will help you to avoid some pitfalls.
It also demonstrates refactorings that you could apply straight away to make your code better.
Let's make a contract: the art of designing a Java APIMario Fusco
An API is what developers use to achieve some task. More precisely it establishes a contract between them and the designers of the software exposing its services through that API. In this sense we're all API designers: our software doesn't work in isolation, but becomes useful only when it interacts with other software written by other developers. When writing software we're not only consumers, but also providers of one or more API and that's why every developer should know the features of a good API. During this presentation we will go through real-world examples, also taken from the standard Java API, of good and bad API and comment them in order to show the dos and don'ts of API design. More in general we will discuss the characteristics of an easy and pleasant to use API, like consistency, discoverability and understandability, together with some basic concepts like the principle of least astonishment, and find out how to achieve them.
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GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
Software Delivery At the Speed of AI: Inflectra Invests In AI-Powered QualityInflectra
In this insightful webinar, Inflectra explores how artificial intelligence (AI) is transforming software development and testing. Discover how AI-powered tools are revolutionizing every stage of the software development lifecycle (SDLC), from design and prototyping to testing, deployment, and monitoring.
Learn about:
• The Future of Testing: How AI is shifting testing towards verification, analysis, and higher-level skills, while reducing repetitive tasks.
• Test Automation: How AI-powered test case generation, optimization, and self-healing tests are making testing more efficient and effective.
• Visual Testing: Explore the emerging capabilities of AI in visual testing and how it's set to revolutionize UI verification.
• Inflectra's AI Solutions: See demonstrations of Inflectra's cutting-edge AI tools like the ChatGPT plugin and Azure Open AI platform, designed to streamline your testing process.
Whether you're a developer, tester, or QA professional, this webinar will give you valuable insights into how AI is shaping the future of software delivery.
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
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After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
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A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
Generating a custom Ruby SDK for your web service or Rails API using Smithyg2nightmarescribd
Have you ever wanted a Ruby client API to communicate with your web service? Smithy is a protocol-agnostic language for defining services and SDKs. Smithy Ruby is an implementation of Smithy that generates a Ruby SDK using a Smithy model. In this talk, we will explore Smithy and Smithy Ruby to learn how to generate custom feature-rich SDKs that can communicate with any web service, such as a Rails JSON API.
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf
Introducing Drools
1. by Mario Fusco
Red Hat – Senior Software Engineer
mario.fusco@gmail.com
twitter: @mariofusco
Introducing
2. Drools Vision
Drools was born as a rule engine, but following the vision of
becoming a single platform for business modelling, it realized
it could achieve this goal only by leveraging 3 complementary
business modelling techniques:
• Business Rule Management (Drools Expert)
• Business Process Management (Drools Flow)
• Complex Event Processing (Drools Fusion)
3. Business Logic integration System
Drools 5 – Business Logic Integration Platform
Drools
Guvnor
Drools
Fusion
Drools
Flow
Drools
Expert
Drools
Planner
4. What a rule-based program is
• A rule-based program is made up of discrete rules, each of
which applies to some subset of the problem
• It is simpler, because you can concentrate on the rules for one
situation at a time
• It can be more flexible in the face of fragmentary or poorly
conditioned inputs
• Used for problems involving control, diagnosis, prediction,
classification, pattern recognition … in short, all problems
without clear algorithmic solutions
Declarative
(What to do)
Imperative
(How to do it)
Vs.
5. When should you use a Rule Engine?
• The problem is beyond any obvious algorithmic solution or
it isn't fully understood
• The logic changes often
• Domain experts (or business analysts) are readily available,
but are nontechnical
• You want to isolate the key parts of your business logic,
especially the really messy parts
7. Rule's anatomy
rule “<name>”
<attribute> <value>
when
<LHS>
then
<RHS>
end
Quotes on Rule names are optional
if the rule name has no spaces.
salience <int>
agenda-group <string>
no-loop <boolean>
auto-focus <boolean>
duration <long>
....
Pattern-matching
against objects in the
Working Memory
Code executed when
a match is found
8. Imperative vs Declarative
public void helloMark(Person person) {
if ( person.getName().equals( “mark” ) {
System.out.println( “Hello Mark” );
}
}
rule “Hello Mark”
when
Person( name == “mark” )
then
System.out.println( “Hello Mark” );
end
A method must be called directly Specific passing
of arguments
Rules can never be called directly Specific instances cannot be
passed but are automatically
selected with pattern-matching
9. What is a pattern
Person( name == “mark” )
Pattern
Object Type Field Constraint
Field Name Restriction
10. Rule's definition
// Java
public class Applicant {
private String name;
private int age;
private boolean valid;
// getter and setter here
}
rule "Is of valid age" when
$a : Applicant( age >= 18 )
then
modify( $a ) { valid = true };
end
// DRL
declare Applicant
name : String
age : int
valid : boolean
end
13. More Pattern Examples
Person( $age : age )
Person( age == ( $age + 1 ) )
Person(age > 30 && < 40 || hair in (“black”, “brown”) )
Person(pets contain $rover )
Person(pets[’rover’].type == “dog”)
14. Conditional Elements
not Bus( color = “red” )
exists Bus( color = “red” )
forall ( $bus : Bus( color == “red” ) )
$owner : Person( name == “mark” )
Pet( name == “rover” ) from $owner.pets
$zipCode : ZipCode()
Person( ) from $hbn.getNamedQuery(“Find People”)
.setParameters( [ “zipCode” : $zipCode ] )
.list()
Hibernate session
'from' can work
on any expression
15. Timers & Calendars
rule R1
timer 1m30s
when
$l : Light( status == “on” )
then
modify( $l ) { status = “off” };
When the light is on, and has been
on for 1m30s then turn it off
Send alert every
quarter of an hour
Execute now and after
1 hour duration only during weekday
rule R3
calendars "weekday"
timer (int:0 1h)
when
Alarm()
then
sendEmail( ”Alert!” )
rule R2
timer ( cron: 0 0/15 * * * * )
when
Alarm()
then
sendEmail( ”Alert!” )
16. Truth Maintenance System (1)
rule "Issue Adult Bus Pass" when
$p : Person( age >= 18 )
then
insert(new AdultBusPass( $p ) );
end
rule "Issue Child Bus Pass" when
$p : Person( age < 18 )
then
insert(new ChildBusPass( $p ) );
end
Coupled logic
What happens
when the child
becomes adult?
17. Truth Maintenance System (2)
rule "Who Is Child" when
$p : Person( age < 18 )
then
logicalInsert( new IsChild( $p ) )
end
rule "Issue Child Bus Pass" when
$p : Person( )
IsChild( person =$p )
then
logicalInsert(new ChildBusPass( $p ) );
end
De-couples the logic
Maintains the truth by
automatically retracting
Encapsulate
knowledge providing
semantic abstractions
for this encapsulation
19. Complex Event Processing
Event
A record of state change in the application domain at a
particular point in time
Complex Event
An abstraction of other events called its members
Complex Event Processing
Processing multiple events with the goal of identifying
the meaningful events within the event cloud
20. Drools Fusion
• Drools modules for Complex Event Processing
• Understand and handle events as a first class
platform citizen (actually special type of Fact)
• Select a set of interesting events in a cloud or
stream of events
• Detect the relevant relationship (patterns)
among these events
• Take appropriate actions based on the
patterns detected
21. Events as Facts in Time
rule
"Sound the alarm"
when
$f : FireDetected( )
not( SprinklerActivated( this after[0s,10s] $f ) )
then
// sound the alarm
end
Temporal
relationships
between events
22. Workflows as Business Processes
A workflow is a process that describes the
order in which a series of steps need to be
executed, using a flow chart.
23. Drools Flow (aka jBPM5)
• Allows to model business processes
• Eclipse-based editor to support workflows
graphical creation
• Pluggable persistence and transaction based
on JPA / JTA
• Based on BPMN 2.0 specification
• Can be used with Drools to model your
business logic as combination of processes,
events and rules
24. Drools Guvnor
• Centralised repository for Drools Knowledge
Bases
• Web based GUIs
• ACL for rules and other artifacts
• Version management
• Integrated testing
25.
26. Drools Planner
• Works on all kinds of planning problems
– NP-complete
– Hard & soft constraints
– Huge search space
• Planning constraints can be weighted and are
written as declarative score rules
• The planner algorithm is configurable. It searches
through the solutions within a given amount of
time and returns the best solution found
27.
28. Mario Fusco
Red Hat – Senior Software Engineer
mario.fusco@gmail.com
twitter: @mariofusco
Q A