In this slide deck, Paul explores how the Ballerina programming language's type-system, security model, syntax, and core concepts take into account network endpoints, payloads and the semantics of network distributed applications.
[WSO2 Integration Summit Bern 2019] Ballerina — Cloud-native Middleware as a ...WSO2
Ballerina is a statically typed, concurrent programming language, focusing on network interaction and structured data. One of its key objectives is to make providing and consuming services easier by baking concepts such as listeners, services, and endpoints as inherently concurrent first-class language constructs. Another important aspect of the language is the sequence diagram based graphical view which shows the most fundamental aspect of the semantics of a network distributed application. Ballerina language is pragmatic and intended for commercial adoption and provides familiarity for users of Java, C#, and JavaScript. While it looks like Java and other popular languages in some ways, it is very different from those in fundamental ways.
In this deck, Paul Fremantle, will discuss and demonstrate how Ballerina simplifies your microservices development. Also, he will show you how Ballerina is different, why it's different, and how those differences give Ballerina an unfair advantage when it comes to developing resilient, performant, and secure network services and applications.
The document provides information about different types of loops in programming:
- Loops allow repeating a block of code a specified number of times, which is useful for tasks like displaying lists that require repeating an operation.
- A for loop repeats until a specific number of iterations is reached, as defined by its initialization, condition, and increment/decrement components.
- A while loop continuously repeats a block of code as long as a given condition remains true.
- Examples are given demonstrating the use of while and for loops to repeatedly output the values of a variable in C++.
Learn about the exciting new REST Resource API powered by Python's new asyncio library. In this talk you'll learn about some of the amazing things you can do with Guillotina and how you can leverage it to build your next JavaScript web application.
Elixir Berlin 2019: Dominic Letz on Doing Blockchain with Elixiryahsinhuangtw
Dominic Letz presented on doing blockchain with Elixir. [1] Existing blockchain nodes require too many resources for constrained devices. [2] Diode is building a new protocol that uses Elixir to enable lightweight blockchain nodes on devices like ESP32. [3] While Elixir is good for some parts like trees, rewriting an entire blockchain node in Elixir has challenges due to performance needs of cryptography routines.
Deepak H B provides contact information and an overview of networking in Ruby. Ruby uses sockets for networking rather than core classes. Sockets allow reading and writing data to other computers like files. Simple client and server examples are provided using TCPSocket and TCPServer classes. Datagrams can also be used with UDPSocket for lower overhead communication. Multiplexing servers are discussed that allow serving multiple clients simultaneously using Kernel.select. Finally, prebuilt libraries are mentioned for implementing protocols like HTTP, FTP, SMTP, POP and IMAP.
This document provides an introduction to asynchronous programming in Python using asyncio. It defines asyncio as a module that provides infrastructure for writing single-threaded concurrent code using coroutines. It discusses how asyncio allows I/O to be handled asynchronously using coroutines and without blocking threads. It highlights some benefits of asyncio like improved performance and scalability for web applications by allowing many network connections to be handled simultaneously without blocking. It provides examples of how to get started with asyncio by running coroutines concurrently using tasks and futures.
This document discusses integrating Apache CXF with Adobe CQ to consume SOAP web services from CQ applications. It describes how to generate proxy classes from a WSDL using CXF codegen plugins, create a factory class and service interface to call the web service, and address issues with classloading in an OSGi environment when calling third party libraries like JAXB from CXF. The solution involves temporarily setting the thread context classloader when creating the web service client.
This document discusses ByteSurgeon, a library for runtime bytecode transformation in Smalltalk. ByteSurgeon provides a high-level API for modifying bytecode without changing the virtual machine. This allows runtime adaptation, debugging, and adding new language features. ByteSurgeon transformations are faster than recompilation. Examples show implementing tracing, logging, and a metaobject protocol (MOP) for intercepting instance variable access in just a few lines of code. Benchmarks show ByteSurgeon is over 5 times faster than standard recompilation approaches.
[WSO2 Integration Summit Bern 2019] Ballerina — Cloud-native Middleware as a ...WSO2
Ballerina is a statically typed, concurrent programming language, focusing on network interaction and structured data. One of its key objectives is to make providing and consuming services easier by baking concepts such as listeners, services, and endpoints as inherently concurrent first-class language constructs. Another important aspect of the language is the sequence diagram based graphical view which shows the most fundamental aspect of the semantics of a network distributed application. Ballerina language is pragmatic and intended for commercial adoption and provides familiarity for users of Java, C#, and JavaScript. While it looks like Java and other popular languages in some ways, it is very different from those in fundamental ways.
In this deck, Paul Fremantle, will discuss and demonstrate how Ballerina simplifies your microservices development. Also, he will show you how Ballerina is different, why it's different, and how those differences give Ballerina an unfair advantage when it comes to developing resilient, performant, and secure network services and applications.
The document provides information about different types of loops in programming:
- Loops allow repeating a block of code a specified number of times, which is useful for tasks like displaying lists that require repeating an operation.
- A for loop repeats until a specific number of iterations is reached, as defined by its initialization, condition, and increment/decrement components.
- A while loop continuously repeats a block of code as long as a given condition remains true.
- Examples are given demonstrating the use of while and for loops to repeatedly output the values of a variable in C++.
Learn about the exciting new REST Resource API powered by Python's new asyncio library. In this talk you'll learn about some of the amazing things you can do with Guillotina and how you can leverage it to build your next JavaScript web application.
Elixir Berlin 2019: Dominic Letz on Doing Blockchain with Elixiryahsinhuangtw
Dominic Letz presented on doing blockchain with Elixir. [1] Existing blockchain nodes require too many resources for constrained devices. [2] Diode is building a new protocol that uses Elixir to enable lightweight blockchain nodes on devices like ESP32. [3] While Elixir is good for some parts like trees, rewriting an entire blockchain node in Elixir has challenges due to performance needs of cryptography routines.
Deepak H B provides contact information and an overview of networking in Ruby. Ruby uses sockets for networking rather than core classes. Sockets allow reading and writing data to other computers like files. Simple client and server examples are provided using TCPSocket and TCPServer classes. Datagrams can also be used with UDPSocket for lower overhead communication. Multiplexing servers are discussed that allow serving multiple clients simultaneously using Kernel.select. Finally, prebuilt libraries are mentioned for implementing protocols like HTTP, FTP, SMTP, POP and IMAP.
This document provides an introduction to asynchronous programming in Python using asyncio. It defines asyncio as a module that provides infrastructure for writing single-threaded concurrent code using coroutines. It discusses how asyncio allows I/O to be handled asynchronously using coroutines and without blocking threads. It highlights some benefits of asyncio like improved performance and scalability for web applications by allowing many network connections to be handled simultaneously without blocking. It provides examples of how to get started with asyncio by running coroutines concurrently using tasks and futures.
This document discusses integrating Apache CXF with Adobe CQ to consume SOAP web services from CQ applications. It describes how to generate proxy classes from a WSDL using CXF codegen plugins, create a factory class and service interface to call the web service, and address issues with classloading in an OSGi environment when calling third party libraries like JAXB from CXF. The solution involves temporarily setting the thread context classloader when creating the web service client.
This document discusses ByteSurgeon, a library for runtime bytecode transformation in Smalltalk. ByteSurgeon provides a high-level API for modifying bytecode without changing the virtual machine. This allows runtime adaptation, debugging, and adding new language features. ByteSurgeon transformations are faster than recompilation. Examples show implementing tracing, logging, and a metaobject protocol (MOP) for intercepting instance variable access in just a few lines of code. Benchmarks show ByteSurgeon is over 5 times faster than standard recompilation approaches.
A quick introduction to Python's Twisted networking library, given at a NZPUG meeting in April 2009.
Covers some of the stuff you can do with Twisted really easily, like an XMPP bot and an SSH/Telnet shell into your running applications.
Rick is a junior DevOps engineer tasked with building a scalable web application. He has been struggling with using just Docker due to difficulties with networking and managing multiple Docker hosts. The document introduces CoreOS as a solution, which uses Docker, etcd, fleet, and flannel to deploy and manage containers across a cluster of machines. Using the CoreOS platform, Rick's application can be automatically distributed across the cluster and discover services through etcd.
This document provides information about Kenneth Hu and his background as a software developer with over 11 years of experience. It also includes details about various Ethereum topics like different types of decentralized applications (dapps), Ethereum clients, smart contract development tools like Solidity, Truffle and Embark, and how to use MetaMask and get testnet coins. The document serves to introduce attendees to Kenneth's blockchain and Ethereum meetup and provide an overview of the material that will be covered.
This document discusses using JavaScript on the server side with Node.js. It covers why JavaScript is useful for servers, common module systems like CommonJS, Node's asynchronous event loop model, interoperability between JavaScript environments, and the Common Node project which aims to implement synchronous CommonJS specifications on top of Node.
By James Kirk Cropcho
PyData New York City 2017
Want to start learning asynchronous programming techniques, but you’re feeling blocked? In this talk, I will explain asynchronous execution. Then, using assorted asynchronous libraries and frameworks, I’ll display and discuss different implementations of a realistic application.
Distributed app development with nodejs and zeromqRuben Tan
This document discusses using Node.js and ZeroMQ for distributed application development. It defines distributed applications as apps distributed across multiple cloud locations that communicate via a standardized protocol. ZeroMQ is introduced as a socket library that can be used for inter-app communication, with common patterns being push-pull for sending data and req-rep for request-response. Scaling is discussed as adding more app instances for push-pull and adding more rep apps for req-rep. Sample ZeroMQ code in Node.js is also provided.
A simple introduction to network programming using Python 3 socket module. This material was used in a 2-day summer training at Mansoura University in August 2016.
The examples included come from other tutorials with some changes. The source code of these and other examples can be found here:
https://github.com/ksonbol/socket_examples
Fluentd processes logs and events from multiple sources by assigning each a tag based on its input source. It then matches these tags to specific outputs like databases or search engines. Fluentd can also re-process events by assigning a new tag to allow for filtering of data to different destinations.
This document discusses reflection capabilities in Pharo. It summarizes that Pharo represents all code as abstract syntax trees (ASTs) that can be annotated and manipulated. This enables powerful metaprogramming by allowing one to modify code at the AST level using annotations called "metalinks" that trigger actions during execution. Metalinks can invoke metaobjects, change control flow, and pass reification data, enabling tasks like debugging, profiling and automated code transformations.
This document discusses asynchronous JavaScript programming concepts including:
- ECMAScript standards that define JavaScript features
- Transpilers that convert newer JavaScript to older versions for compatibility
- Callbacks, callback hell, and the challenges of nested asynchronous code
- Promises as an alternative to callbacks for cleaner asynchronous code sequencing
- Error handling with promises
- Running asynchronous code in parallel and waiting for results using Promise.all
- Async/await syntax as syntactic sugar that makes asynchronous code appear synchronous
This document discusses Kafka and message buses. It describes synchronous vs asynchronous communication and how a message bus can be used for event aggregation, CQRS, microservices, and event sourcing. It then provides details on Apache Kafka, including its creation by LinkedIn, use by major companies, and basic workflow. Key components of the Kafka stack like Zookeeper, brokers, producers, consumers and topics are explained. The document ends with an example of launching a local Kafka cluster and producing and consuming messages.
This document provides an introduction to Twisted, an event-driven networking engine written in Python. It describes Twisted's key components, including the Reactor event loop, Deferred asynchronous programming abstraction, networking abstractions like Transport and Protocol, and high-level APIs for applications like HTTP, SMTP, FTP and more. It also discusses how to deploy Twisted applications using the twistd utility and provides additional resources for learning more about asynchronous programming and Twisted.
#Pharo Days 2016 Data Formats and ProtocolsPhilippe Back
The document discusses various data formats and protocols for building bridges between Pharo and the outside world.
It describes common data formats like CSV, JSON, and XML that can be used to serialize and deserialize Pharo objects to and from streams. It provides examples of parsing and generating data in these formats using libraries like NeoCSV and NeoJSON.
It also discusses common protocols like HTTP, filesystem I/O, and subprocesses that can be used to communicate with external systems. Specific examples covered are the memcached protocol and using Zinc for HTTP client/server communication.
The document provides an introduction to .NET, describing what it is, its core components like the .NET Framework and Common Language Runtime (CLR), advantages such as cross-language development and improved security, and popular languages for .NET development like C# and Visual Basic .NET. Key aspects of the .NET Framework are outlined, including namespaces for organizing classes, support for web standards, and ADO.NET for database access. Differences between C# and Visual Basic .NET are highlighted, such as syntax and intended uses as a rapid application development tool.
This document provides an overview of Socket.IO, a JavaScript library for real-time web applications. It discusses what Socket.IO is, how it provides persistent connections and real-time functionality across browsers including older versions of Internet Explorer. It also summarizes how to install and use Socket.IO on both the client-side and server-side as well as how to send and receive events. Key features like broadcasting messages, acknowledgements, and configurations are also highlighted. Upcoming releases like optimizations, gzip support, and integration with Redis for scaling are mentioned as well.
"WTF is Twisted? (or; owl amongst the ponies)" is a talk that introduces the Twisted asynchronous programming framework, how it works, and what uses it.
[WSO2 Integration Summit New York 2019] Ballerina - Cloud Native Middleware a...WSO2
Ballerina is a programming language designed for network-distributed applications. One of its key objectives is to make providing and consuming services easier by baking concepts such as listeners, services, and endpoints as inherently concurrent first-class language constructs. Another important aspect of the language is the sequence diagram based graphical view which shows the most fundamental aspect of the semantics of a network distributed application. Ballerina language is pragmatic and intended for commercial adoption and provides familiarity for users of Java, C#, and JavaScript. While it looks like Java and other popular languages in some ways, it is very different from those in fundamental ways.
In this deck, Lakmal, discusses and demonstratees how Ballerina simplifies your microservices development. Also, shows you how Ballerina is different, why it's different, and how those differences give Ballerina an unfair advantage when it comes to developing resilient, performant, and secure network services and applications.
This document discusses ReactPHP, an event-driven non-blocking I/O framework for PHP. It begins by explaining how ReactPHP applications are event-driven and non-blocking. It then covers key ReactPHP concepts like streams, closures, and loops. Examples are provided of building an HTTP server and chat application with ReactPHP. Resources for learning more about ReactPHP and related libraries are listed at the end.
A quick introduction to Python's Twisted networking library, given at a NZPUG meeting in April 2009.
Covers some of the stuff you can do with Twisted really easily, like an XMPP bot and an SSH/Telnet shell into your running applications.
Rick is a junior DevOps engineer tasked with building a scalable web application. He has been struggling with using just Docker due to difficulties with networking and managing multiple Docker hosts. The document introduces CoreOS as a solution, which uses Docker, etcd, fleet, and flannel to deploy and manage containers across a cluster of machines. Using the CoreOS platform, Rick's application can be automatically distributed across the cluster and discover services through etcd.
This document provides information about Kenneth Hu and his background as a software developer with over 11 years of experience. It also includes details about various Ethereum topics like different types of decentralized applications (dapps), Ethereum clients, smart contract development tools like Solidity, Truffle and Embark, and how to use MetaMask and get testnet coins. The document serves to introduce attendees to Kenneth's blockchain and Ethereum meetup and provide an overview of the material that will be covered.
This document discusses using JavaScript on the server side with Node.js. It covers why JavaScript is useful for servers, common module systems like CommonJS, Node's asynchronous event loop model, interoperability between JavaScript environments, and the Common Node project which aims to implement synchronous CommonJS specifications on top of Node.
By James Kirk Cropcho
PyData New York City 2017
Want to start learning asynchronous programming techniques, but you’re feeling blocked? In this talk, I will explain asynchronous execution. Then, using assorted asynchronous libraries and frameworks, I’ll display and discuss different implementations of a realistic application.
Distributed app development with nodejs and zeromqRuben Tan
This document discusses using Node.js and ZeroMQ for distributed application development. It defines distributed applications as apps distributed across multiple cloud locations that communicate via a standardized protocol. ZeroMQ is introduced as a socket library that can be used for inter-app communication, with common patterns being push-pull for sending data and req-rep for request-response. Scaling is discussed as adding more app instances for push-pull and adding more rep apps for req-rep. Sample ZeroMQ code in Node.js is also provided.
A simple introduction to network programming using Python 3 socket module. This material was used in a 2-day summer training at Mansoura University in August 2016.
The examples included come from other tutorials with some changes. The source code of these and other examples can be found here:
https://github.com/ksonbol/socket_examples
Fluentd processes logs and events from multiple sources by assigning each a tag based on its input source. It then matches these tags to specific outputs like databases or search engines. Fluentd can also re-process events by assigning a new tag to allow for filtering of data to different destinations.
This document discusses reflection capabilities in Pharo. It summarizes that Pharo represents all code as abstract syntax trees (ASTs) that can be annotated and manipulated. This enables powerful metaprogramming by allowing one to modify code at the AST level using annotations called "metalinks" that trigger actions during execution. Metalinks can invoke metaobjects, change control flow, and pass reification data, enabling tasks like debugging, profiling and automated code transformations.
This document discusses asynchronous JavaScript programming concepts including:
- ECMAScript standards that define JavaScript features
- Transpilers that convert newer JavaScript to older versions for compatibility
- Callbacks, callback hell, and the challenges of nested asynchronous code
- Promises as an alternative to callbacks for cleaner asynchronous code sequencing
- Error handling with promises
- Running asynchronous code in parallel and waiting for results using Promise.all
- Async/await syntax as syntactic sugar that makes asynchronous code appear synchronous
This document discusses Kafka and message buses. It describes synchronous vs asynchronous communication and how a message bus can be used for event aggregation, CQRS, microservices, and event sourcing. It then provides details on Apache Kafka, including its creation by LinkedIn, use by major companies, and basic workflow. Key components of the Kafka stack like Zookeeper, brokers, producers, consumers and topics are explained. The document ends with an example of launching a local Kafka cluster and producing and consuming messages.
This document provides an introduction to Twisted, an event-driven networking engine written in Python. It describes Twisted's key components, including the Reactor event loop, Deferred asynchronous programming abstraction, networking abstractions like Transport and Protocol, and high-level APIs for applications like HTTP, SMTP, FTP and more. It also discusses how to deploy Twisted applications using the twistd utility and provides additional resources for learning more about asynchronous programming and Twisted.
#Pharo Days 2016 Data Formats and ProtocolsPhilippe Back
The document discusses various data formats and protocols for building bridges between Pharo and the outside world.
It describes common data formats like CSV, JSON, and XML that can be used to serialize and deserialize Pharo objects to and from streams. It provides examples of parsing and generating data in these formats using libraries like NeoCSV and NeoJSON.
It also discusses common protocols like HTTP, filesystem I/O, and subprocesses that can be used to communicate with external systems. Specific examples covered are the memcached protocol and using Zinc for HTTP client/server communication.
The document provides an introduction to .NET, describing what it is, its core components like the .NET Framework and Common Language Runtime (CLR), advantages such as cross-language development and improved security, and popular languages for .NET development like C# and Visual Basic .NET. Key aspects of the .NET Framework are outlined, including namespaces for organizing classes, support for web standards, and ADO.NET for database access. Differences between C# and Visual Basic .NET are highlighted, such as syntax and intended uses as a rapid application development tool.
This document provides an overview of Socket.IO, a JavaScript library for real-time web applications. It discusses what Socket.IO is, how it provides persistent connections and real-time functionality across browsers including older versions of Internet Explorer. It also summarizes how to install and use Socket.IO on both the client-side and server-side as well as how to send and receive events. Key features like broadcasting messages, acknowledgements, and configurations are also highlighted. Upcoming releases like optimizations, gzip support, and integration with Redis for scaling are mentioned as well.
"WTF is Twisted? (or; owl amongst the ponies)" is a talk that introduces the Twisted asynchronous programming framework, how it works, and what uses it.
[WSO2 Integration Summit New York 2019] Ballerina - Cloud Native Middleware a...WSO2
Ballerina is a programming language designed for network-distributed applications. One of its key objectives is to make providing and consuming services easier by baking concepts such as listeners, services, and endpoints as inherently concurrent first-class language constructs. Another important aspect of the language is the sequence diagram based graphical view which shows the most fundamental aspect of the semantics of a network distributed application. Ballerina language is pragmatic and intended for commercial adoption and provides familiarity for users of Java, C#, and JavaScript. While it looks like Java and other popular languages in some ways, it is very different from those in fundamental ways.
In this deck, Lakmal, discusses and demonstratees how Ballerina simplifies your microservices development. Also, shows you how Ballerina is different, why it's different, and how those differences give Ballerina an unfair advantage when it comes to developing resilient, performant, and secure network services and applications.
This document discusses ReactPHP, an event-driven non-blocking I/O framework for PHP. It begins by explaining how ReactPHP applications are event-driven and non-blocking. It then covers key ReactPHP concepts like streams, closures, and loops. Examples are provided of building an HTTP server and chat application with ReactPHP. Resources for learning more about ReactPHP and related libraries are listed at the end.
The document discusses how Groovy provides a simpler and more concise way to work with Java code for tasks like file input/output, XML parsing, and configuration compared to Java and other languages like Perl and Ruby. It highlights Groovy features like built-in support for closures, the Elvis operator, date formatting, and ExpandoMetaClass that allow for more readable and expressive code.
The document discusses file management in C. It defines a file as a collection of related data treated as a single unit by computers. C uses the FILE structure to store file attributes. The document outlines opening, reading, writing and closing files in C using functions like fopen(), fclose(), fread(), fwrite(), fseek(), ftell() and handling errors. It also discusses reading/writing characters using getc()/putc() and integers using getw()/putw() as well as formatted input/output with fscanf() and fprintf(). Random access to files using fseek() is also covered.
The document discusses various C programming concepts like typedef, bitfields, enumeration, file I/O, text files vs binary files. typedef allows defining a new name for an already defined datatype. Bitfields allow packing structure members efficiently using bits. Enumeration defines a set of named integer constants. File I/O functions like fopen, fclose, fread, fwrite are used to read and write data to files. Text files contain human readable characters while binary files store data as bytes.
Perl is an interpreted language, meaning that a control program that understands the semantics of the language and its components (the interpreter) executes program components individually as they are encountered in the control flow.
Interpreted execution makes Perl flexible, convenient, and fast for programming, with some penalty paid in execution speed.
A file is a collection of related data that a computer treats as a single unit. Files allow data to be stored permanently even when the computer is shut down. C uses the FILE structure to store attributes of a file. Files allow for flexible data storage and retrieval of large data volumes like experimental results. Key file operations in C include opening, reading, writing, and closing files. Functions like fopen(), fread(), fwrite(), fclose() perform these operations.
The document discusses file management in C programming. It defines a file as a sequence of bytes stored on disk for permanent storage of data. It describes basic file operations like opening, reading, writing and closing files. It explains functions for high level input/output like fopen(), fclose(), getc(), putc(), fprintf(), fscanf(), getw(), putw() and their usage. It also covers error handling functions like feof() and ferror(). The document discusses random access of files using functions like ftell(), fseek() and rewind(). It finally talks about command line arguments and how they are passed to main() in C programs.
This document discusses file handling in C programming. It begins by explaining why files are useful for storing data permanently and how programs can read from and write to files. It then covers the basic file operations in C like opening, reading from, writing to, and closing files. Different file modes for opening files are described. Functions for reading and writing single characters and formatted data to files like fopen, fclose, getc, putc, fscanf, fprintf are explained with examples. The document also discusses lower level functions for reading and writing blocks of data like fread and fwrite along with an example. It concludes with exercises asking the reader to write programs that read and write data to files.
introduction, file, types of files, need for file handling, steps for processing a file, file input/out functions {declaraion of file, opening a file, reading data from a file, writing data in a file, closing the file}, programs #technology #computers
This document provides an overview of advanced Perl concepts including:
1. Finer points of looping, including the continue block and multiple loop variables. Subroutine prototypes allow specifying the number and types of arguments.
2. Working with files using filehandles for reading, writing, and appending. Functions like open, close, rename, unlink for file operations.
3. Working with directories using opendir, readdir, rewinddir and related functions.
4. EVAL for evaluating strings and blocks of code. Packages for namespacing and modules. BEGIN and END blocks act as constructors and destructors.
3 sentences or less.
This document discusses key concepts in functional programming including:
- Functional languages favor pure functions that have no side effects and always return the same output for a given input.
- Functions are first-class citizens that can be assigned to variables, passed as arguments to other functions, and returned from other functions.
- Composition involves combining simple functions together to build more complex behaviors through function piping.
- Loops are avoided in favor of map, filter, and reduce functions to operate on collections in a declarative way that can run operations in parallel.
- Immutability is important to avoid bugs from side effects and make reasoning about programs easier.
This document discusses file handling in C programming. It describes the high level and low level methods of performing file operations in C using functions like fopen(), fclose(), getc(), putc(), fprintf(), fscanf(), getw(), putw(), fseek(), and ftell(). It explains how to open, read, write, close and perform random access on files. Functions like fopen(), fclose() are used to open and close files while getc(), putc(), fprintf(), fscanf() are used to read and write data from files.
This document provides an introduction to PHP and MySQL. It begins by stating the goal is to provide basic PHP knowledge and code explanations. It then discusses what PHP is, including that it is an open-source scripting language used to generate dynamic web pages. Several PHP basics are covered, such as variables, functions, include files, forms, and sessions. The document concludes with an overview of PHP, noting its ease of use, large function library, ability to output different file types, and support for many databases.
This document provides an introduction to PHP and MySQL. It begins by stating the goal is to provide basic PHP knowledge and code explanations. It then discusses what PHP is, including that it is an open-source scripting language used to generate dynamic web pages. Several PHP basics are covered, such as variables, functions, includes, forms, and sessions. The document concludes with an overview of PHP, noting its ease of use, large function library, ability to output various file types, and support for many databases. Examples are provided throughout to demonstrate PHP concepts.
This document discusses file management in C. It explains that files are used to store large amounts of data systematically so it can be accessed easily later. Files allow flexible storage and retrieval of data that is too large for memory. The key points covered include opening, reading, writing and closing files; using functions like fopen(), fclose(), fprintf(), fscanf(); handling errors; and dynamic memory allocation functions like malloc() and calloc().
This document discusses file operations in C including opening, reading, and writing to files. It covers:
- Using FILE * pointers to access files and opening files with fopen()
- Standard files stdin, stdout, stderr that are opened for input/output
- Reading/writing files using formatted I/O functions like fscanf() and fprintf() as well as lower level functions to get/put characters and lines
- Binary reading/writing entire blocks of memory with fread() and fwrite()
- Closing files, flushing buffers, and detecting the end of file
JavaFX Script is a new declarative and dynamically typed scripting language created by Sun Microsystems as part of their JavaFX product family. It aims to provide a productive way to create rich client applications that can be deployed across desktops, mobile devices, and set-top boxes using Java. Key features of JavaFX Script include first-class functions, list comprehensions, and the ability to call Java APIs and leverage existing Java classes and libraries.
Similar to [ApacheCon NA 2019] Re-inventing Middleware in a Programming Language (20)
Building Real-time Systems with WebSub - Ballerina Community Call - 11/30/2021Ballerinalang
During this call, we will present:
- A quick overview of WebSub protocol and the current Ballerina WebSub framework
- Real-world use case and demonstration
During this call, we will discuss, Managing Dependencies in Ballerina:
- Packaging system in Ballerina
- Built-in dependency manager
- Automatic version udpates
- Version compatibility ranges
- Producing predictable builds
- Working with unpublished packages
Sign up for future community calls here: https://bit.ly/3i9Wi5O
[Ballerina Community Call] Language Integrated QueriesBallerinalang
In this community call, we will discuss:
- Introduction to language integrated queries
- Ease of data processing using integrated queries
- Demonstration of a real-world example
[Community Call] Ballerina Swan Lake HTTP Module ChangesBallerinalang
The document summarizes changes to the HTTP package in Ballerina Swan Lake. Key changes include:
1. Changes to service and resource declarations including absolute resource paths, path parameters, and return types.
2. Changes to client implementations including improved response payload retrieval and support for headers.
3. Support for various security configurations for both services and clients including TLS, mutual TLS, basic authentication with file user stores, and JWT/OAuth2.
Ballerina Community Call 8: Highlights of Ballerina Swan Lake and Introducing...Ballerinalang
In this community call, we discuss with live demos:
- What's new in Ballerina Swan Lake
- Configurability in Ballerina
- Revamped Ballerina Central and API docs
- Sequence diagrams in VS Code
- Introducing Choreo
Sign up for future community calls here: bit.ly/371snIq
Ballerina Community Channels:
- Twitter: https://twitter.com/ballerinalang
- Slack: http://ballerina-platform.slack.com/
- GitHub: https://github.com/ballerina-platform/ballerina-lang
#Ballerinalang #CommunityCall #SwanLake
[GID Live] Automatic Microservices Observability with BallerinaBallerinalang
This slide deck explores Ballerina's built-in functionality which can be used for metrics generation and distributed tracing for microservices.
Recording: https://wurreka.com/watch/gids-2021/automatic-microservices-observability-with-open-source-progr
This document summarizes an agenda for a presentation on the open-source cloud-native programming language Ballerina. The presentation covers topics like services, HTTP/GraphQL, concurrency, asynchronous I/O, Kubernetes deployment, serverless computing on AWS Lambda and Azure Functions, and observability using distributed tracing and metrics. It also lists additional Ballerina features and provides information on how to get involved with the Ballerina community.
[Ballerina Community Call] Services and Network Communication Updates in Swan...Ballerinalang
In this community call, we discuss services and network communication updates in Swan Lake including:
- New services syntax
- Introduction to HTTP/GraphQL services
- Ballerina concurrency model and its role in non-blocking I/O
Recording: https://youtu.be/hKBjatIFxyw
Sign up for future community calls here: bit.ly/371snIq
[Ballerina Community Call] Java InteroperabilityBallerinalang
In this slide deck, we discuss upcoming features in future Ballerina releases, and Java interoperability in Ballerina including:
- Calling Java code from Ballerina
- Generating bindings using the Bindgen Tool
- Packaging Java libraries with Ballerina programs
Watch video: https://youtu.be/4EINEJAtAg4
[Ballerina Community Call] Data Access in BallerinaBallerinalang
This slide deck explores data access in Ballerina including
- RDBMS Data Access and Manipulation
- Batch execution and Stored Procedures
- Transaction Handling
- Data Access Best Practices
Recording: https://youtu.be/lLqvaLtC3m0
Code to Kubernetes: Languages of InfrastructureBallerinalang
Cloud native application development has now become the norm. As a result, every developer is becoming a cloud native app developer. They are becoming masters of not only programming languages, but also distributed primitives/abstractions offered by containers, Kubernetes, and serverless frameworks. Effectively leveraging platforms such as Kubernetes can be a daunting task for developers due to many reasons, including managing hundreds of lines of YAML configuration.
Programming languages, frameworks, and tools that abstract away the complexities faced by developers are on the rise. They are collectively called the languages of infrastructure. In this session, I will explore two such tools -- Pulumi and Ballerina. This deck explores how these languages of infrastructure hide the complexities of cloud-native platforms and boost developer productivity.
[Cloud DC Meetup] Cloud Native Development with BallerinaBallerinalang
This slide deck explores how Ballerina helps software developers build microservices and solve integration problems without compromising on development and scalability.
[DevOps Pro Europe 2020] The Cloud-Native and DevOps Friendly Programming Lan...Ballerinalang
In this slide deck, Anjana talks about the history of Ballerina, the motivation behind its development, and how Ballerina can help in your journey through modern cloud-native development and deployment.
[DevOps Pro Europe 2020] From Code to CloudBallerinalang
In this slide deck, Lakmal explores how Ballerina's compiler can be extended to read annotations defined in the source code and generate artifacts to deploy your code into different clouds.
[DeveloperWeek 2020] Conquering Network Distributed Applications Using BallerinaBallerinalang
In this session, Anjana explores the advantages of Ballerina over traditional programming languages. Ballerina has built-in support for services/resources, transactions, and resilient communication support. This is combined with a type system that further enhances these operations.
[Cloud-Native and Kubernetes Meetup in Silicon Valley] Ballerina - Cloud Nati...Ballerinalang
This document provides an overview of Ballerina, a cloud-native programming language for integration. It discusses how Ballerina supports integration in a disaggregated world through transactions, circuit breaking, protocols, payloads, events, and security. It also mentions that Ballerina is agile, network-aware, and has batteries included for networking, connectors, concurrency, and observability. The document provides examples of using Ballerina and discusses how to get involved with the open source project.
[Downtown San Jose DevOps Meetup] Ballerina - A Programming Language for Clou...Ballerinalang
In this slide deck, Anjana explores the history of Ballerina, the motivation behind its development, and how Ballerina can help in your journey through modern cloud-native development and deployment.
[DeveloperWeek Austin 2019] Microservices in Practice with Ballerina, Kuberne...Ballerinalang
This slide deck explores how Ballerina specializes in writing microservices and deploying them into Kubernetes and Istio without having to write YAMLs and dockerfiles.
[ApacheCon NA 2019] Conquering Network Distributed Applications Using the Bal...Ballerinalang
In this slide deck, Anjana Fernando introduces Ballerina - an open source programming language for cloud-era developers - and explores why it is a critical and timely addition to the tools and technologies needed to build network distributed applications.
[Java Colombo Meetup] The better java for Java microservices developersBallerinalang
In this slide deck Dr. Sanjiva Weerawarana, Ballerina product manager, explores how Java microservice developers can use Ballerina to create resilient, performant, and secure microservices.
UiPath Test Automation using UiPath Test Suite series, part 6DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 6. In this session, we will cover Test Automation with generative AI and Open AI.
UiPath Test Automation with generative AI and Open AI webinar offers an in-depth exploration of leveraging cutting-edge technologies for test automation within the UiPath platform. Attendees will delve into the integration of generative AI, a test automation solution, with Open AI advanced natural language processing capabilities.
Throughout the session, participants will discover how this synergy empowers testers to automate repetitive tasks, enhance testing accuracy, and expedite the software testing life cycle. Topics covered include the seamless integration process, practical use cases, and the benefits of harnessing AI-driven automation for UiPath testing initiatives. By attending this webinar, testers, and automation professionals can gain valuable insights into harnessing the power of AI to optimize their test automation workflows within the UiPath ecosystem, ultimately driving efficiency and quality in software development processes.
What will you get from this session?
1. Insights into integrating generative AI.
2. Understanding how this integration enhances test automation within the UiPath platform
3. Practical demonstrations
4. Exploration of real-world use cases illustrating the benefits of AI-driven test automation for UiPath
Topics covered:
What is generative AI
Test Automation with generative AI and Open AI.
UiPath integration with generative AI
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Full-RAG: A modern architecture for hyper-personalizationZilliz
Mike Del Balso, CEO & Co-Founder at Tecton, presents "Full RAG," a novel approach to AI recommendation systems, aiming to push beyond the limitations of traditional models through a deep integration of contextual insights and real-time data, leveraging the Retrieval-Augmented Generation architecture. This talk will outline Full RAG's potential to significantly enhance personalization, address engineering challenges such as data management and model training, and introduce data enrichment with reranking as a key solution. Attendees will gain crucial insights into the importance of hyperpersonalization in AI, the capabilities of Full RAG for advanced personalization, and strategies for managing complex data integrations for deploying cutting-edge AI solutions.
Introducing Milvus Lite: Easy-to-Install, Easy-to-Use vector database for you...Zilliz
Join us to introduce Milvus Lite, a vector database that can run on notebooks and laptops, share the same API with Milvus, and integrate with every popular GenAI framework. This webinar is perfect for developers seeking easy-to-use, well-integrated vector databases for their GenAI apps.
Goodbye Windows 11: Make Way for Nitrux Linux 3.5.0!SOFTTECHHUB
As the digital landscape continually evolves, operating systems play a critical role in shaping user experiences and productivity. The launch of Nitrux Linux 3.5.0 marks a significant milestone, offering a robust alternative to traditional systems such as Windows 11. This article delves into the essence of Nitrux Linux 3.5.0, exploring its unique features, advantages, and how it stands as a compelling choice for both casual users and tech enthusiasts.
Generative AI Deep Dive: Advancing from Proof of Concept to ProductionAggregage
Join Maher Hanafi, VP of Engineering at Betterworks, in this new session where he'll share a practical framework to transform Gen AI prototypes into impactful products! He'll delve into the complexities of data collection and management, model selection and optimization, and ensuring security, scalability, and responsible use.
Threats to mobile devices are more prevalent and increasing in scope and complexity. Users of mobile devices desire to take full advantage of the features
available on those devices, but many of the features provide convenience and capability but sacrifice security. This best practices guide outlines steps the users can take to better protect personal devices and information.
Enchancing adoption of Open Source Libraries. A case study on Albumentations.AIVladimir Iglovikov, Ph.D.
Presented by Vladimir Iglovikov:
- https://www.linkedin.com/in/iglovikov/
- https://x.com/viglovikov
- https://www.instagram.com/ternaus/
This presentation delves into the journey of Albumentations.ai, a highly successful open-source library for data augmentation.
Created out of a necessity for superior performance in Kaggle competitions, Albumentations has grown to become a widely used tool among data scientists and machine learning practitioners.
This case study covers various aspects, including:
People: The contributors and community that have supported Albumentations.
Metrics: The success indicators such as downloads, daily active users, GitHub stars, and financial contributions.
Challenges: The hurdles in monetizing open-source projects and measuring user engagement.
Development Practices: Best practices for creating, maintaining, and scaling open-source libraries, including code hygiene, CI/CD, and fast iteration.
Community Building: Strategies for making adoption easy, iterating quickly, and fostering a vibrant, engaged community.
Marketing: Both online and offline marketing tactics, focusing on real, impactful interactions and collaborations.
Mental Health: Maintaining balance and not feeling pressured by user demands.
Key insights include the importance of automation, making the adoption process seamless, and leveraging offline interactions for marketing. The presentation also emphasizes the need for continuous small improvements and building a friendly, inclusive community that contributes to the project's growth.
Vladimir Iglovikov brings his extensive experience as a Kaggle Grandmaster, ex-Staff ML Engineer at Lyft, sharing valuable lessons and practical advice for anyone looking to enhance the adoption of their open-source projects.
Explore more about Albumentations and join the community at:
GitHub: https://github.com/albumentations-team/albumentations
Website: https://albumentations.ai/
LinkedIn: https://www.linkedin.com/company/100504475
Twitter: https://x.com/albumentations
Dr. Sean Tan, Head of Data Science, Changi Airport Group
Discover how Changi Airport Group (CAG) leverages graph technologies and generative AI to revolutionize their search capabilities. This session delves into the unique search needs of CAG’s diverse passengers and customers, showcasing how graph data structures enhance the accuracy and relevance of AI-generated search results, mitigating the risk of “hallucinations” and improving the overall customer journey.
Building RAG with self-deployed Milvus vector database and Snowpark Container...Zilliz
This talk will give hands-on advice on building RAG applications with an open-source Milvus database deployed as a docker container. We will also introduce the integration of Milvus with Snowpark Container Services.
Let's Integrate MuleSoft RPA, COMPOSER, APM with AWS IDP along with Slackshyamraj55
Discover the seamless integration of RPA (Robotic Process Automation), COMPOSER, and APM with AWS IDP enhanced with Slack notifications. Explore how these technologies converge to streamline workflows, optimize performance, and ensure secure access, all while leveraging the power of AWS IDP and real-time communication via Slack notifications.
UiPath Test Automation using UiPath Test Suite series, part 5DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 5. In this session, we will cover CI/CD with devops.
Topics covered:
CI/CD with in UiPath
End-to-end overview of CI/CD pipeline with Azure devops
Speaker:
Lyndsey Byblow, Test Suite Sales Engineer @ UiPath, Inc.
Communications Mining Series - Zero to Hero - Session 1DianaGray10
This session provides introduction to UiPath Communication Mining, importance and platform overview. You will acquire a good understand of the phases in Communication Mining as we go over the platform with you. Topics covered:
• Communication Mining Overview
• Why is it important?
• How can it help today’s business and the benefits
• Phases in Communication Mining
• Demo on Platform overview
• Q/A
Pushing the limits of ePRTC: 100ns holdover for 100 daysAdtran
At WSTS 2024, Alon Stern explored the topic of parametric holdover and explained how recent research findings can be implemented in real-world PNT networks to achieve 100 nanoseconds of accuracy for up to 100 days.
5. Existing languages treat the
network as simply I/O
Ballerina treats APIs, listeners,
endpoints, network types as first
class entities
6. Ballerina is a modern, compiled, type safe,
concurrent programming language
Open Source implementations,
Apache Licensed
Open Specification,
Creative Commons Licensed
13. ○ Built in taint analysis
○ Built in API Gateway (JWT and OAuth)
○ Research on embedding SPIFFE into the language
○ First-class integration with Istio / Envoy
More info here:
https://github.com/prabath/ballerina-security
18. ○ A type defined by union of two or more other types
float | string v1 = "John";
float | string v2 = 457.68;
float | string
0.51
1.01
457.68
-11.0
“John”
“name”
“”
“bal”
// The return type of 'post' is a union of 'http:Response' and 'error'
http:Response | error response = orderEP -> post("/create", reqPayload)
21. // Simple XML literal
xml x1 = xml`<name>Paul Fremantle</name>`;
// XML with namespaces
xmlns "http://wso2.com" as ns0;
xml x2 = xml `<name id="123" status="married">
<ns0:fname>Paul</ns0:fname>
<ns0:lname>Fremantle</ns0:lname>
</name>`;
// XML literal with interpolation
string lastName = "Fremantle";
xml x3 = xml`<lname>${lastName}</lname>`;
// Concat XML values
xml x4 = x1 + x2 + x3;
44. $ ballerina openapi gen-contract hello -i demo.bal
Note: This is an Experimental tool shipped under
ballerina hence this will only support limited set
of functionality.
Successfully generated the ballerina contract at
location
/Users/paul/10demo/hello.openapi.yaml
53. ○ Join the Ballerina Hackathon
○ Write your first Ballerina program
○ Help us bridge Ballerina with your Apache project
○ Come to https://ballerina.io
○ Join the slack channel and/or ballerina-dev mailing list
○ Create a package
○ A connector to your Apache project!
○ Create issues
○ On the spec or implementation
○ If you have compiler skills, submit PRs on nBallerina or jBallerina