Espresso introduction
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Espresso Logic builds and runs RESTful servers for SQL databases, with advanced support for row/column level security, and business logic by JavaScript events and Reactive Programming.
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KISHORE KUMAR
Kishore Kailainathan is a full stack software developer intern at Thinix and has a M.S in Computer Science from Iowa State University with a GPA of 3.74. He has experience developing RESTful APIs using C# and Angular, as well as setting up continuous integration using Jenkins. Previously he worked as a software engineer lead and associate at athenahealth India, where he led teams handling medical claims and billing and improved system performance.
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- The core components of Espresso include matchers to find views, actions to perform interactions, and assertions to validate views match expected states. Common matchers, actions, and assertions are introduced.
- Configuration and setup for Espresso tests in Android projects is explained, including dependencies, test rules, and JUnit annotations. Additional libraries that extend Espresso functionality are also listed.
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The document discusses performance analysis of a large intranet web application called Global Projects Delivery (GPD) which was experiencing erratic response times for users. Key findings from the analysis were:
1) Most traffic occurred during morning, post-lunch, and evening peaks and was concentrated on a few frequently accessed pages like daily task updates.
2) While the application server response time was good, 98% of the total response time was spent on data transfer, indicating the network was the bottleneck.
3) Pages with multiple frames and requests slowed down data transfer rates significantly compared to simpler pages.
4) Actions recommended included redesigning pages to reduce frames and requests, relocating servers closer to users, and
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- Google App Engine is a platform for easily developing and hosting scalable web applications, with no need for complex server management. It automatically scales the applications and handles all the operational details.
- App Engine applications run on Google's infrastructure and benefit from automatic scaling across multiple servers. It also provides security isolation and quotas to prevent applications from disrupting others.
- The platform uses a stateless, request-based architecture and scales applications automatically as traffic increases by distributing requests across multiple servers. It also uses quotas to ensure fairness among applications.
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This document discusses strategies for handling large amounts of data in web applications. It begins by providing examples of how much data some large websites contain, ranging from terabytes to petabytes. It then covers various techniques for scaling data handling capabilities including vertical and horizontal scaling, replication, partitioning, consistency models, normalization, caching, and using different data engine types beyond relational databases. The key lessons are that data volumes continue growing rapidly, and a variety of techniques are needed to scale across servers, datacenters, and provide high performance and availability.
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The organization had been using Oracle RDBMS, Oracle Designer & Forms and even an Oracle EBS module for many years. On the side it had been running several open source J2EE web applications. Facing several new challenges, it took the plunge into SOA - the technology and the architectural principle.
This presentation tells their story.
It started with the business need of opening up the core application to several external business partners. A programmatic interface was required for submitting expense reports - in the thousands - for one business partner, who also wanted to be able to ask for the status for each one those reports.
Another external entity needed the ability to learn about relevant changes in product and pricing data through an API.
We will discuss how SOA principles were used to design the application architecture. And how the Oracle 10g SOA Suite - specifically ESB and BPEL PM - were used to implement the requirements. We go into the choices the organization had to make, the challenges they had to overcome, the skills they had to acquire and the results they achieved.
After this first stage came the next set of business requirements needed tackling. And now the first benefits could be reaped. Following the guidelines established in their first close encounter with SOA, this organization achieved the first reuse of services, could rapidly decide on the application architecture for the ADF 11g Internet Application that needed to be created and further expanded their still little SOA universe. The initial experience now enabled them to decide on whether and how to service enable specific functionality required for the web application - how to use ESB and BPEL, for example and when to use application specific database APIs rather than SOA Web Services.
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- Espresso is a testing framework created by Google for writing reliable UI tests for Android apps. It allows writing tests to interact with views in the app and check their expected behavior.
- The core components of Espresso include matchers to find views, actions to perform interactions, and assertions to validate views match expected states. Common matchers, actions, and assertions are introduced.
- Configuration and setup for Espresso tests in Android projects is explained, including dependencies, test rules, and JUnit annotations. Additional libraries that extend Espresso functionality are also listed.
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The document discusses performance analysis of a large intranet web application called Global Projects Delivery (GPD) which was experiencing erratic response times for users. Key findings from the analysis were:
1) Most traffic occurred during morning, post-lunch, and evening peaks and was concentrated on a few frequently accessed pages like daily task updates.
2) While the application server response time was good, 98% of the total response time was spent on data transfer, indicating the network was the bottleneck.
3) Pages with multiple frames and requests slowed down data transfer rates significantly compared to simpler pages.
4) Actions recommended included redesigning pages to reduce frames and requests, relocating servers closer to users, and
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- App Engine applications run on Google's infrastructure and benefit from automatic scaling across multiple servers. It also provides security isolation and quotas to prevent applications from disrupting others.
- The platform uses a stateless, request-based architecture and scales applications automatically as traffic increases by distributing requests across multiple servers. It also uses quotas to ensure fairness among applications.
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This document discusses strategies for handling large amounts of data in web applications. It begins by providing examples of how much data some large websites contain, ranging from terabytes to petabytes. It then covers various techniques for scaling data handling capabilities including vertical and horizontal scaling, replication, partitioning, consistency models, normalization, caching, and using different data engine types beyond relational databases. The key lessons are that data volumes continue growing rapidly, and a variety of techniques are needed to scale across servers, datacenters, and provide high performance and availability.
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This presentation tells their story.
It started with the business need of opening up the core application to several external business partners. A programmatic interface was required for submitting expense reports - in the thousands - for one business partner, who also wanted to be able to ask for the status for each one those reports.
Another external entity needed the ability to learn about relevant changes in product and pricing data through an API.
We will discuss how SOA principles were used to design the application architecture. And how the Oracle 10g SOA Suite - specifically ESB and BPEL PM - were used to implement the requirements. We go into the choices the organization had to make, the challenges they had to overcome, the skills they had to acquire and the results they achieved.
After this first stage came the next set of business requirements needed tackling. And now the first benefits could be reaped. Following the guidelines established in their first close encounter with SOA, this organization achieved the first reuse of services, could rapidly decide on the application architecture for the ADF 11g Internet Application that needed to be created and further expanded their still little SOA universe. The initial experience now enabled them to decide on whether and how to service enable specific functionality required for the web application - how to use ESB and BPEL, for example and when to use application specific database APIs rather than SOA Web Services.
This stage also taught them the necessity of Governance - what are naming conventions for elements in Schema Definitions and Services, who owns a service, what’s the required availability and how is that achieved, what are the SLAs (Service Level Agreements) around the service, how can the service be evolved with respect to new or changing needs.
The presentation will tell the story of the two stages and how the organization went about them. It will show some small demos to illustrate what was done. It will share some conclusions as to what works and what does not. Finally it briefly discusses the future plans for this organization with regard to SOA.
The presentation is for an audience that probably (though not necessarily) has a classic Oracle background and either is in the process of taking its first steps in the SOA arena or considers moving their. It should help make that process more tangible and hopefully realistic and desirable.
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In this session I'd share the design, architecture and implementation of some of the most common elements of any social platform - Open API, profiles, searches, lists and activity streams. These "pillers" of a social platform bear most of the weight behind a jazzy UI, and scaling them has its own challenges. I will also talk about how we built the Social Platform at IGN from ground up, including not-so-unique challenges like integration with legacy systems.
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Fitur AppManager - Application Manager ManageEngine
Recently uploaded
Introduction of Cybersecurity with OSS at Code Europe 2024
I develop the Ruby programming language, RubyGems, and Bundler, which are package managers for Ruby. Today, I will introduce how to enhance the security of your application using open-source software (OSS) examples from Ruby and RubyGems.
The first topic is CVE (Common Vulnerabilities and Exposures). I have published CVEs many times. But what exactly is a CVE? I'll provide a basic understanding of CVEs and explain how to detect and handle vulnerabilities in OSS.
Next, let's discuss package managers. Package managers play a critical role in the OSS ecosystem. I'll explain how to manage library dependencies in your application.
I'll share insights into how the Ruby and RubyGems core team works to keep our ecosystem safe. By the end of this talk, you'll have a better understanding of how to safeguard your code.
Demystifying Knowledge Management through Storytelling
The Department of Veteran Affairs (VA) invited Taylor Paschal, Knowledge & Information Management Consultant at Enterprise Knowledge, to speak at a Knowledge Management Lunch and Learn hosted on June 12, 2024. All Office of Administration staff were invited to attend and received professional development credit for participating in the voluntary event.
The objectives of the Lunch and Learn presentation were to:
- Review what KM ‘is’ and ‘isn’t’
- Understand the value of KM and the benefits of engaging
- Define and reflect on your “what’s in it for me?”
- Share actionable ways you can participate in Knowledge - - Capture & Transfer
"Scaling RAG Applications to serve millions of users", Kevin Goedecke
How we managed to grow and scale a RAG application from zero to thousands of users in 7 months. Lessons from technical challenges around managing high load for LLMs, RAGs and Vector databases.
"NATO Hackathon Winner: AI-Powered Drug Search", Taras Kloba
This is a session that details how PostgreSQL's features and Azure AI Services can be effectively used to significantly enhance the search functionality in any application.
In this session, we'll share insights on how we used PostgreSQL to facilitate precise searches across multiple fields in our mobile application. The techniques include using LIKE and ILIKE operators and integrating a trigram-based search to handle potential misspellings, thereby increasing the search accuracy.
We'll also discuss how the azure_ai extension on PostgreSQL databases in Azure and Azure AI Services were utilized to create vectors from user input, a feature beneficial when users wish to find specific items based on text prompts. While our application's case study involves a drug search, the techniques and principles shared in this session can be adapted to improve search functionality in a wide range of applications. Join us to learn how PostgreSQL and Azure AI can be harnessed to enhance your application's search capability.
The Microsoft 365 Migration Tutorial For Beginner.pptx
This presentation will help you understand the power of Microsoft 365. However, we have mentioned every productivity app included in Office 365. Additionally, we have suggested the migration situation related to Office 365 and how we can help you.
You can also read: https://www.systoolsgroup.com/updates/office-365-tenant-to-tenant-migration-step-by-step-complete-guide/
A Deep Dive into ScyllaDB's Architecture
This talk will cover ScyllaDB Architecture from the cluster-level view and zoom in on data distribution and internal node architecture. In the process, we will learn the secret sauce used to get ScyllaDB's high availability and superior performance. We will also touch on the upcoming changes to ScyllaDB architecture, moving to strongly consistent metadata and tablets.
Northern Engraving | Modern Metal Trim, Nameplates and Appliance Panels
What began over 115 years ago as a supplier of precision gauges to the automotive industry has evolved into being an industry leader in the manufacture of product branding, automotive cockpit trim and decorative appliance trim. Value-added services include in-house Design, Engineering, Program Management, Test Lab and Tool Shops.
[OReilly Superstream] Occupy the Space: A grassroots guide to engineering (an...
The typical problem in product engineering is not bad strategy, so much as “no strategy”. This leads to confusion, lack of motivation, and incoherent action. The next time you look for a strategy and find an empty space, instead of waiting for it to be filled, I will show you how to fill it in yourself. If you’re wrong, it forces a correction. If you’re right, it helps create focus. I’ll share how I’ve approached this in the past, both what works and lessons for what didn’t work so well.
Northern Engraving | Nameplate Manufacturing Process - 2024
Manufacturing custom quality metal nameplates and badges involves several standard operations. Processes include sheet prep, lithography, screening, coating, punch press and inspection. All decoration is completed in the flat sheet with adhesive and tooling operations following. The possibilities for creating unique durable nameplates are endless. How will you create your brand identity? We can help!
Session 1 - Intro to Robotic Process Automation.pdf
👉 Check out our full 'Africa Series - Automation Student Developers (EN)' page to register for the full program:
https://bit.ly/Automation_Student_Kickstart
In this session, we shall introduce you to the world of automation, the UiPath Platform, and guide you on how to install and setup UiPath Studio on your Windows PC.
📕 Detailed agenda:
What is RPA? Benefits of RPA?
RPA Applications
The UiPath End-to-End Automation Platform
UiPath Studio CE Installation and Setup
💻 Extra training through UiPath Academy:
Introduction to Automation
UiPath Business Automation Platform
Explore automation development with UiPath Studio
👉 Register here for our upcoming Session 2 on June 20: Introduction to UiPath Studio Fundamentals: https://community.uipath.com/events/details/uipath-lagos-presents-session-2-introduction-to-uipath-studio-fundamentals/
Astute Business Solutions | Oracle Cloud Partner |
Your goto partner for Oracle Cloud, PeopleSoft, E-Business Suite, and Ellucian Banner. We are a firm specialized in managed services and consulting.
ScyllaDB Tablets: Rethinking Replication
ScyllaDB is making a major architecture shift. We’re moving from vNode replication to tablets – fragments of tables that are distributed independently, enabling dynamic data distribution and extreme elasticity. In this keynote, ScyllaDB co-founder and CTO Avi Kivity explains the reason for this shift, provides a look at the implementation and roadmap, and shares how this shift benefits ScyllaDB users.
“Temporal Event Neural Networks: A More Efficient Alternative to the Transfor...
“Temporal Event Neural Networks: A More Efficient Alternative to the Transfor...Edge AI and Vision Alliance
For the full video of this presentation, please visit: https://www.edge-ai-vision.com/2024/06/temporal-event-neural-networks-a-more-efficient-alternative-to-the-transformer-a-presentation-from-brainchip/
Chris Jones, Director of Product Management at BrainChip , presents the “Temporal Event Neural Networks: A More Efficient Alternative to the Transformer” tutorial at the May 2024 Embedded Vision Summit.
The expansion of AI services necessitates enhanced computational capabilities on edge devices. Temporal Event Neural Networks (TENNs), developed by BrainChip, represent a novel and highly efficient state-space network. TENNs demonstrate exceptional proficiency in handling multi-dimensional streaming data, facilitating advancements in object detection, action recognition, speech enhancement and language model/sequence generation. Through the utilization of polynomial-based continuous convolutions, TENNs streamline models, expedite training processes and significantly diminish memory requirements, achieving notable reductions of up to 50x in parameters and 5,000x in energy consumption compared to prevailing methodologies like transformers.
Integration with BrainChip’s Akida neuromorphic hardware IP further enhances TENNs’ capabilities, enabling the realization of highly capable, portable and passively cooled edge devices. This presentation delves into the technical innovations underlying TENNs, presents real-world benchmarks, and elucidates how this cutting-edge approach is positioned to revolutionize edge AI across diverse applications.Crafting Excellence: A Comprehensive Guide to iOS Mobile App Development Serv...
Crafting Excellence: A Comprehensive Guide to iOS Mobile App Development Serv...Pitangent Analytics & Technology Solutions Pvt. Ltd
Discover top-tier mobile app development services, offering innovative solutions for iOS and Android. Enhance your business with custom, user-friendly mobile applications.Apps Break Data
How information systems are built or acquired puts information, which is what they should be about, in a secondary place. Our language adapted accordingly, and we no longer talk about information systems but applications. Applications evolved in a way to break data into diverse fragments, tightly coupled with applications and expensive to integrate. The result is technical debt, which is re-paid by taking even bigger "loans", resulting in an ever-increasing technical debt. Software engineering and procurement practices work in sync with market forces to maintain this trend. This talk demonstrates how natural this situation is. The question is: can something be done to reverse the trend?
Essentials of Automations: Exploring Attributes & Automation Parameters
Building automations in FME Flow can save time, money, and help businesses scale by eliminating data silos and providing data to stakeholders in real-time. One essential component to orchestrating complex automations is the use of attributes & automation parameters (both formerly known as “keys”). In fact, it’s unlikely you’ll ever build an Automation without using these components, but what exactly are they?
Attributes & automation parameters enable the automation author to pass data values from one automation component to the next. During this webinar, our FME Flow Specialists will cover leveraging the three types of these output attributes & parameters in FME Flow: Event, Custom, and Automation. As a bonus, they’ll also be making use of the Split-Merge Block functionality.
You’ll leave this webinar with a better understanding of how to maximize the potential of automations by making use of attributes & automation parameters, with the ultimate goal of setting your enterprise integration workflows up on autopilot.
AppSec PNW: Android and iOS Application Security with MobSF
Mobile Security Framework - MobSF is a free and open source automated mobile application security testing environment designed to help security engineers, researchers, developers, and penetration testers to identify security vulnerabilities, malicious behaviours and privacy concerns in mobile applications using static and dynamic analysis. It supports all the popular mobile application binaries and source code formats built for Android and iOS devices. In addition to automated security assessment, it also offers an interactive testing environment to build and execute scenario based test/fuzz cases against the application.
This talk covers:
Using MobSF for static analysis of mobile applications.
Interactive dynamic security assessment of Android and iOS applications.
Solving Mobile app CTF challenges.
Reverse engineering and runtime analysis of Mobile malware.
How to shift left and integrate MobSF/mobsfscan SAST and DAST in your build pipeline.
JavaLand 2024: Application Development Green Masterplan
My presentation slides I used at JavaLand 2024
Recently uploaded (20)
Introduction of Cybersecurity with OSS at Code Europe 2024
Introduction of Cybersecurity with OSS at Code Europe 2024
Demystifying Knowledge Management through Storytelling
Demystifying Knowledge Management through Storytelling
"Scaling RAG Applications to serve millions of users", Kevin Goedecke
"Scaling RAG Applications to serve millions of users", Kevin Goedecke
"NATO Hackathon Winner: AI-Powered Drug Search", Taras Kloba
"NATO Hackathon Winner: AI-Powered Drug Search", Taras Kloba
Poznań ACE event - 19.06.2024 Team 24 Wrapup slidedeck
Poznań ACE event - 19.06.2024 Team 24 Wrapup slidedeck
The Microsoft 365 Migration Tutorial For Beginner.pptx
The Microsoft 365 Migration Tutorial For Beginner.pptx
Northern Engraving | Modern Metal Trim, Nameplates and Appliance Panels
Northern Engraving | Modern Metal Trim, Nameplates and Appliance Panels
[OReilly Superstream] Occupy the Space: A grassroots guide to engineering (an...
[OReilly Superstream] Occupy the Space: A grassroots guide to engineering (an...
Northern Engraving | Nameplate Manufacturing Process - 2024
Northern Engraving | Nameplate Manufacturing Process - 2024
Session 1 - Intro to Robotic Process Automation.pdf
Session 1 - Intro to Robotic Process Automation.pdf
Astute Business Solutions | Oracle Cloud Partner |
Astute Business Solutions | Oracle Cloud Partner |
“Temporal Event Neural Networks: A More Efficient Alternative to the Transfor...
“Temporal Event Neural Networks: A More Efficient Alternative to the Transfor...
Crafting Excellence: A Comprehensive Guide to iOS Mobile App Development Serv...
Crafting Excellence: A Comprehensive Guide to iOS Mobile App Development Serv...
Essentials of Automations: Exploring Attributes & Automation Parameters
Essentials of Automations: Exploring Attributes & Automation Parameters
AppSec PNW: Android and iOS Application Security with MobSF
AppSec PNW: Android and iOS Application Security with MobSF
JavaLand 2024: Application Development Green Masterplan
JavaLand 2024: Application Development Green Masterplan
Espresso introduction
- 3. Reference Implementation Logic 5-10 Pages / Table Jersey REST Server Rich Objects Any device, Anywhere! Jackson REST Listener . JSON Handler Resource / Object Mapping S e c u r i t y I n t e g r i t y Events / Methods Persistence Framework SQL Database Domain Objects JPA (3 Pages / Table)
- 4. The Problem – Today’s Reality Sure… a few weeks… We need a simple mobile app... spec is only 1 page Umm.. I was thinking a few hours
- 5. The Next Generation Proven Technology 1. Rest API: Forms 2. Row/Column Security: Filters 3. Business logic: Events, Reactive
- 6. Why Customers Love Espresso Logic Over 90% time savings Speed of reactive programming with the power of JavaScript Reduced maintenance Use with any front-end Reduced documentation Deploy in Cloud or on premise
- 7. Use Case – Read Only Access to Data RESTful Espresso Servers Espresso Server Access Control Services
- 8. Use Case – Mobile and Web Applications RESTful Espresso Espresso Server Server(s) Access Control Business Logic
- 9. Use Case – Complex Enterprise Applications RESTful Espresso Servers Databases Access Control Espresso Server Business Logic B2B integration SOA Services External External Backends Backends
- 10. Data Model Customer name, balance, credit_limit Orders amount_total, paid Product price LineItem qty_ordered, product_price, amount
- 11. Time to Market, plus… Issue Espresso Documentation The executable cocktail napkin Maintenance Automatic ordering – eliminates the archaeology of maintenance Quality Automatic reuse – logic applied to every use case Performance Automatic optimization – automatics enterprise design patterns
- 12. Manufacturing and Capacity Planning Application Application manages and plans and optimizes factory operations for a Fortune 1000 company Inputs • Orders • Machines – Run rate – Setup time • ABC code – Product priority – Customer priority Processing Used to be 9 people full time using Excel Now takes 20 to 30 minutes per day Outputs • Raw materials orders • Factory plan
- 13. Demo Slides
- 14. Build a RESTful API 1. Register your database URL 2. Select Tables (joins automated) 3. Optional Alias / Project
- 15. Security: Row Level Access Control Espresso or Corporate Authentication Provider ID, Credentials Active Server Authenticate Roles Espresso Logic Designer Role/Table Permission Filters Active Server Authorize Filters, injected into requests
- 16. Row/Column Security 1. 2. Filter applied to all GETs For all purchaseorder Resources
- 17. Reactive: the Executable Specification
- 18. Logic Events 1. Full Control 2. Domain/Object model (row)
- 19. Enterprise Integration 1. Request Events 2. Invoke RESTful service