The document discusses various web technologies including:
- Core web technologies like browsers, servers, URIs and HTTP.
- Client-side technologies like HTML, CSS, JavaScript and HTML5.
- Server-side technologies for web applications like CGI, PHP, Java servlets and JSPs.
- How web applications use technologies like application servers to manage business logic and state in a dynamic way.
- Common methods for managing session state including cookies, databases and application servers.
The document discusses modeling web applications using the Web Application Extension (WAE) for UML. The WAE allows web pages and other significant web elements to be represented in UML design models. It introduces stereotypes for classes like server pages and client pages to model different aspects of web pages. It also includes stereotypes for associations between model elements like links, builds, submits, and redirects. The document provides examples of using WAE stereotypes to model elements of a sample microblogging application and a lab's wall of text website.
The document provides an overview of XML and related web technologies including XML, XML Schema, XSL, XQuery, web services using SOAP and WSDL, and RESTful web services. It defines these technologies and provides examples to illustrate their usage and capabilities. The document is intended as a teaching resource to introduce learners to key concepts and standards related to XML, web services, and the semantic web.
The document summarizes various physical architecture patterns for web applications, including single server, separate database, replicated web servers, separate scripting engines, application servers, and J2EE architectures. It also discusses dimensions to consider in architecture design like performance, scalability, and constraints. Additional topics covered include web caching techniques and an overview of cloud computing characteristics and service models.
This document provides an overview of web technologies, including:
- Core technologies like web browsers, web servers, URIs, and HTTP.
- Client-side technologies like HTML, CSS, JavaScript, DOM, AJAX, and HTML5 for enhancing user interfaces.
- Server-side technologies like CGI, PHP, Java servlets, and JSPs for building dynamic web applications.
Unit 7 covers web presentation layer patterns including the Model-View-Controller (MVC) pattern and related patterns. It discusses the MVC pattern in detail, dividing an application into three components: the model containing core functionality, the view for displaying information, and the controller for handling user input. It then provides a catalog of MVC-based patterns including page controller, front controller, application controller, and intercepting filter patterns.
The document discusses various design patterns and frameworks related to web presentation layers and integrating web and business layers. It covers the Context Object pattern for encapsulating state in a protocol-independent way. It also discusses the Synchronizer Token pattern for controlling duplicate requests and client access flow. For integrating remote web and business layers, it describes the Service Locator and Business Delegate patterns for locating and accessing business services through a centralized lookup mechanism or delegate respectively. Finally, it compares Transaction Script, Domain Model, and Table Module as architectural patterns for the business layer.
The document discusses different web frameworks for Java, focusing on Struts 1, Spring MVC, and JavaServer Faces. It provides an overview and examples of how Struts 1 implements the MVC pattern using components like ActionServlet, RequestProcessor, and ActionMappings. It also briefly compares Struts 1 and 2, and outlines key aspects of Spring MVC like flexible request mapping and support for different view technologies.
InterConnect 2016 Java EE 7 Overview (PEJ-5296)Kevin Sutter
Java EE 7 is an update to the Java Platform, Enterprise Edition that includes new APIs and functionality for batch processing, JSON processing, WebSocket, RESTful web services, and more. Key features include batch applications, JSON processing improvements, WebSocket support, simplified JMS API, and more annotated POJOs with less boilerplate code. WebSphere Application Server and IBM WebSphere Liberty support Java EE 7.
The document discusses modeling web applications using the Web Application Extension (WAE) for UML. The WAE allows web pages and other significant web elements to be represented in UML design models. It introduces stereotypes for classes like server pages and client pages to model different aspects of web pages. It also includes stereotypes for associations between model elements like links, builds, submits, and redirects. The document provides examples of using WAE stereotypes to model elements of a sample microblogging application and a lab's wall of text website.
The document provides an overview of XML and related web technologies including XML, XML Schema, XSL, XQuery, web services using SOAP and WSDL, and RESTful web services. It defines these technologies and provides examples to illustrate their usage and capabilities. The document is intended as a teaching resource to introduce learners to key concepts and standards related to XML, web services, and the semantic web.
The document summarizes various physical architecture patterns for web applications, including single server, separate database, replicated web servers, separate scripting engines, application servers, and J2EE architectures. It also discusses dimensions to consider in architecture design like performance, scalability, and constraints. Additional topics covered include web caching techniques and an overview of cloud computing characteristics and service models.
This document provides an overview of web technologies, including:
- Core technologies like web browsers, web servers, URIs, and HTTP.
- Client-side technologies like HTML, CSS, JavaScript, DOM, AJAX, and HTML5 for enhancing user interfaces.
- Server-side technologies like CGI, PHP, Java servlets, and JSPs for building dynamic web applications.
Unit 7 covers web presentation layer patterns including the Model-View-Controller (MVC) pattern and related patterns. It discusses the MVC pattern in detail, dividing an application into three components: the model containing core functionality, the view for displaying information, and the controller for handling user input. It then provides a catalog of MVC-based patterns including page controller, front controller, application controller, and intercepting filter patterns.
The document discusses various design patterns and frameworks related to web presentation layers and integrating web and business layers. It covers the Context Object pattern for encapsulating state in a protocol-independent way. It also discusses the Synchronizer Token pattern for controlling duplicate requests and client access flow. For integrating remote web and business layers, it describes the Service Locator and Business Delegate patterns for locating and accessing business services through a centralized lookup mechanism or delegate respectively. Finally, it compares Transaction Script, Domain Model, and Table Module as architectural patterns for the business layer.
The document discusses different web frameworks for Java, focusing on Struts 1, Spring MVC, and JavaServer Faces. It provides an overview and examples of how Struts 1 implements the MVC pattern using components like ActionServlet, RequestProcessor, and ActionMappings. It also briefly compares Struts 1 and 2, and outlines key aspects of Spring MVC like flexible request mapping and support for different view technologies.
InterConnect 2016 Java EE 7 Overview (PEJ-5296)Kevin Sutter
Java EE 7 is an update to the Java Platform, Enterprise Edition that includes new APIs and functionality for batch processing, JSON processing, WebSocket, RESTful web services, and more. Key features include batch applications, JSON processing improvements, WebSocket support, simplified JMS API, and more annotated POJOs with less boilerplate code. WebSphere Application Server and IBM WebSphere Liberty support Java EE 7.
This document discusses web-based systems and how they are built. It defines a web-based system as a software system based on World Wide Web Consortium standards that provides web resources like content and services through a web browser. It categorizes different types of web-based systems based on complexity. It also outlines key characteristics of web-based systems, common technologies used to build them like programming languages and frameworks, and considerations for the web engineering process.
This document discusses the process of developing a user experience (UX) model for a web application from requirements. It explains that requirements engineering and analysis produce a requirements model and analysis model, which then inform the design of the interaction model or UX model. The UX model defines elements like user interface metaphors, naming conventions, and page layout specifications to guide the development team.
The servlet code reads the name and age parameters from an HTML form submitted via GET. It uses the getParameter() method to retrieve the parameter values and prints them out wrapped in HTML.
JDBC (Java Database Connectivity) is an API that allows Java programs to connect to databases. It provides methods for querying and updating data in a database. The document discusses the history and types of JDBC drivers, how to connect to a database using JDBC, and provides sample code for executing queries and processing result sets.
The document discusses physical architecture layer design, which involves determining how a system will be distributed across computers and the hardware and software that will be used. This includes infrastructure design, hardware specifications, and determining which application software components will run on which hardware. Common application architectures are server-based, client-based, and client-server. The physical architecture design flows from non-functional requirements and specifies the system's hardware and software components.
[DSBW Spring 2009] Unit 07: WebApp Design Patterns & Frameworks (2/3)Carles Farré
This document summarizes various design patterns and frameworks related to web presentation layers and business layers. For web presentation layers, it discusses the Context Object pattern for encapsulating state, the Synchronizer Token pattern for controlling request flow, and different approaches to session state management. It also reviews integration patterns for connecting web presentation and business layers, including the Service Locator and Business Delegate patterns. Finally, it examines common architectural patterns for the business layer such as Transaction Script, Domain Model, and Table Module.
The document discusses process models and agile methods for web application development. It provides an overview of the Rational Unified Process (RUP) model, including its goals, key aspects, phases, workflows, artifacts, and models. It then discusses agile methods like Scrum and eXtreme Programming (XP), contrasting them with more traditional "heavyweight" models. The document also summarizes various business models for electronic commerce, including business-to-consumer models like portals, e-tailers, content providers, transaction brokers, and market creators.
The document discusses OpenESB and connecting enterprises using Java Business Integration (JBI). It describes how OpenESB implements an enterprise service bus (ESB) using JBI as its foundation. OpenESB provides services like message routing and transformation for implementing service-oriented architecture (SOA). It has pluggable components like service engines and binding components that allow for integration with different systems and protocols. An example composite application for a loan approval process is discussed to demonstrate how OpenESB can be used to integrate a BPEL process, Java EE services, and other components.
The document discusses defining client access to enterprise beans through interfaces. It covers:
- Session and entity beans use interfaces to define client access, while message-driven beans do not.
- Well-designed interfaces simplify application development and maintenance by shielding clients from bean complexities and allowing internal bean changes.
- Clients can access beans remotely, locally, or through web services, and the document discusses the characteristics of each type of client access.
The document discusses enterprise beans, which are server-side components that encapsulate business logic in Java applications. There are three types of enterprise beans: session beans, entity beans, and message-driven beans. Session beans represent a single client and are not persistent, while entity beans represent business objects that are stored persistently in a database. The document provides details on session beans and entity beans, including their purposes, characteristics, and when each type should be used.
Java Web Programming [3/9] : Servlet AdvancedIMC Institute
This document provides an overview of servlet advanced topics including including, forwarding to, and redirecting to other web resources. It discusses servlet and JDBC integration including using prepared statements and callable statements. It also covers session tracking APIs and how they can be used to maintain state across HTTP requests through different mechanisms like cookies or URL rewriting. Finally, it briefly introduces servlet scopes, listeners, and filters.
The document discusses security principles for web applications, including identifying threats like spoofing and tampering, vulnerabilities, and attacks. It emphasizes authenticating and authorizing users, implementing measures like encryption to ensure confidentiality and integrity of data, and making systems available through techniques such as throttling. The document also provides examples of network, host, and application level threats and corresponding countermeasures.
This document provides an overview of JSP (JavaServer Pages) basics. It discusses what JSP is, its advantages, the elements that make up a JSP file including directives, scripting elements, actions, and implicit objects. It also covers the JSP lifecycle, how JSP pages work, common directives like page and include, scripting elements like declarations, scriptlets and expressions, and standard actions like include, forward, useBean and setProperty. The document is intended to teach the fundamentals of JSP through explanations and examples.
This document provides an overview of JEE technologies and servlet APIs:
- It describes websites and web applications, and identifies enterprise applications.
- It explores the servlet API and identifies key concepts like HTTP requests and responses, servlet containers, and the execution process of servlets.
- The document discusses key servlet terminology and the advantages and limitations of using servlets.
The document discusses using Adobe Flex with Ruby on Rails frameworks. It provides an overview of Flex's runtime architecture, how it can make HTTP and web service calls to retrieve data from the server, and how the Flex development process mirrors other client development languages with MXML and ActionScript code being compiled to bytecode. It also discusses using Flex with Rails, including code samples demonstrating request/response and updating models through commands and delegates.
This document introduces the Model-View-Controller (MVC) pattern and its evolution in web application design. It discusses the Model 1 architecture which is page-centric, and the Model 2 architecture which is servlet-centric. Model 2 architecture separates the application into three logical layers - the model, the view, and the controller. Web application frameworks like Struts are also introduced, which are based on MVC Model 2 architecture and provide common functionality to web applications.
Java Web Programming [2/9] : Servlet BasicIMC Institute
This document provides an overview of servlets, including:
- Servlets extend the functionality of HTTP servers and allow for dynamic content generation.
- Servlets handle requests and responses more efficiently than CGI due to being server-independent and allowing for session management.
- The servlet lifecycle includes initialization, request handling, and destruction. Common methods are init(), service(), doGet(), doPost(), and destroy().
- Servlets extract information from HTTP requests and use this to generate and return HTTP responses by setting headers and writing response content.
The document discusses the architecture and lifecycle of Enterprise Java Beans (EJB). It explains that a bean runs inside a container that provides services like transactions and security. When a client calls a bean method, the call goes through a two-step process - first to a local proxy stub and then to the bean container. The container then performs any required services before delegating the call to the bean. It also describes the main EJB types - session beans, entity beans, and message-driven beans - and gives examples of each. Finally, it outlines the phases of the JavaServer Faces (JSF) lifecycle when processing a request, including restoring the view, applying values, validating, updating models, invoking the application
This document provides an overview of the Struts framework and its key components. It covers the model-view-controller design pattern used in Struts, the model components including JavaBeans and ActionForm beans, view components like JSP tags and internationalization, controller components like Action classes and the configuration file, and finally the tag libraries used in Struts. The document is part of a training course on Struts and introduces each major concept across 9 units.
Learn how the history of the Web relates to your online marketing success. The presentation covers the history of the Internet from the launch of Sputnik up to 2013.
For speaking engagements please contact me via: http://vimi.co/contact/
This document discusses web-based systems and how they are built. It defines a web-based system as a software system based on World Wide Web Consortium standards that provides web resources like content and services through a web browser. It categorizes different types of web-based systems based on complexity. It also outlines key characteristics of web-based systems, common technologies used to build them like programming languages and frameworks, and considerations for the web engineering process.
This document discusses the process of developing a user experience (UX) model for a web application from requirements. It explains that requirements engineering and analysis produce a requirements model and analysis model, which then inform the design of the interaction model or UX model. The UX model defines elements like user interface metaphors, naming conventions, and page layout specifications to guide the development team.
The servlet code reads the name and age parameters from an HTML form submitted via GET. It uses the getParameter() method to retrieve the parameter values and prints them out wrapped in HTML.
JDBC (Java Database Connectivity) is an API that allows Java programs to connect to databases. It provides methods for querying and updating data in a database. The document discusses the history and types of JDBC drivers, how to connect to a database using JDBC, and provides sample code for executing queries and processing result sets.
The document discusses physical architecture layer design, which involves determining how a system will be distributed across computers and the hardware and software that will be used. This includes infrastructure design, hardware specifications, and determining which application software components will run on which hardware. Common application architectures are server-based, client-based, and client-server. The physical architecture design flows from non-functional requirements and specifies the system's hardware and software components.
[DSBW Spring 2009] Unit 07: WebApp Design Patterns & Frameworks (2/3)Carles Farré
This document summarizes various design patterns and frameworks related to web presentation layers and business layers. For web presentation layers, it discusses the Context Object pattern for encapsulating state, the Synchronizer Token pattern for controlling request flow, and different approaches to session state management. It also reviews integration patterns for connecting web presentation and business layers, including the Service Locator and Business Delegate patterns. Finally, it examines common architectural patterns for the business layer such as Transaction Script, Domain Model, and Table Module.
The document discusses process models and agile methods for web application development. It provides an overview of the Rational Unified Process (RUP) model, including its goals, key aspects, phases, workflows, artifacts, and models. It then discusses agile methods like Scrum and eXtreme Programming (XP), contrasting them with more traditional "heavyweight" models. The document also summarizes various business models for electronic commerce, including business-to-consumer models like portals, e-tailers, content providers, transaction brokers, and market creators.
The document discusses OpenESB and connecting enterprises using Java Business Integration (JBI). It describes how OpenESB implements an enterprise service bus (ESB) using JBI as its foundation. OpenESB provides services like message routing and transformation for implementing service-oriented architecture (SOA). It has pluggable components like service engines and binding components that allow for integration with different systems and protocols. An example composite application for a loan approval process is discussed to demonstrate how OpenESB can be used to integrate a BPEL process, Java EE services, and other components.
The document discusses defining client access to enterprise beans through interfaces. It covers:
- Session and entity beans use interfaces to define client access, while message-driven beans do not.
- Well-designed interfaces simplify application development and maintenance by shielding clients from bean complexities and allowing internal bean changes.
- Clients can access beans remotely, locally, or through web services, and the document discusses the characteristics of each type of client access.
The document discusses enterprise beans, which are server-side components that encapsulate business logic in Java applications. There are three types of enterprise beans: session beans, entity beans, and message-driven beans. Session beans represent a single client and are not persistent, while entity beans represent business objects that are stored persistently in a database. The document provides details on session beans and entity beans, including their purposes, characteristics, and when each type should be used.
Java Web Programming [3/9] : Servlet AdvancedIMC Institute
This document provides an overview of servlet advanced topics including including, forwarding to, and redirecting to other web resources. It discusses servlet and JDBC integration including using prepared statements and callable statements. It also covers session tracking APIs and how they can be used to maintain state across HTTP requests through different mechanisms like cookies or URL rewriting. Finally, it briefly introduces servlet scopes, listeners, and filters.
The document discusses security principles for web applications, including identifying threats like spoofing and tampering, vulnerabilities, and attacks. It emphasizes authenticating and authorizing users, implementing measures like encryption to ensure confidentiality and integrity of data, and making systems available through techniques such as throttling. The document also provides examples of network, host, and application level threats and corresponding countermeasures.
This document provides an overview of JSP (JavaServer Pages) basics. It discusses what JSP is, its advantages, the elements that make up a JSP file including directives, scripting elements, actions, and implicit objects. It also covers the JSP lifecycle, how JSP pages work, common directives like page and include, scripting elements like declarations, scriptlets and expressions, and standard actions like include, forward, useBean and setProperty. The document is intended to teach the fundamentals of JSP through explanations and examples.
This document provides an overview of JEE technologies and servlet APIs:
- It describes websites and web applications, and identifies enterprise applications.
- It explores the servlet API and identifies key concepts like HTTP requests and responses, servlet containers, and the execution process of servlets.
- The document discusses key servlet terminology and the advantages and limitations of using servlets.
The document discusses using Adobe Flex with Ruby on Rails frameworks. It provides an overview of Flex's runtime architecture, how it can make HTTP and web service calls to retrieve data from the server, and how the Flex development process mirrors other client development languages with MXML and ActionScript code being compiled to bytecode. It also discusses using Flex with Rails, including code samples demonstrating request/response and updating models through commands and delegates.
This document introduces the Model-View-Controller (MVC) pattern and its evolution in web application design. It discusses the Model 1 architecture which is page-centric, and the Model 2 architecture which is servlet-centric. Model 2 architecture separates the application into three logical layers - the model, the view, and the controller. Web application frameworks like Struts are also introduced, which are based on MVC Model 2 architecture and provide common functionality to web applications.
Java Web Programming [2/9] : Servlet BasicIMC Institute
This document provides an overview of servlets, including:
- Servlets extend the functionality of HTTP servers and allow for dynamic content generation.
- Servlets handle requests and responses more efficiently than CGI due to being server-independent and allowing for session management.
- The servlet lifecycle includes initialization, request handling, and destruction. Common methods are init(), service(), doGet(), doPost(), and destroy().
- Servlets extract information from HTTP requests and use this to generate and return HTTP responses by setting headers and writing response content.
The document discusses the architecture and lifecycle of Enterprise Java Beans (EJB). It explains that a bean runs inside a container that provides services like transactions and security. When a client calls a bean method, the call goes through a two-step process - first to a local proxy stub and then to the bean container. The container then performs any required services before delegating the call to the bean. It also describes the main EJB types - session beans, entity beans, and message-driven beans - and gives examples of each. Finally, it outlines the phases of the JavaServer Faces (JSF) lifecycle when processing a request, including restoring the view, applying values, validating, updating models, invoking the application
This document provides an overview of the Struts framework and its key components. It covers the model-view-controller design pattern used in Struts, the model components including JavaBeans and ActionForm beans, view components like JSP tags and internationalization, controller components like Action classes and the configuration file, and finally the tag libraries used in Struts. The document is part of a training course on Struts and introduces each major concept across 9 units.
Learn how the history of the Web relates to your online marketing success. The presentation covers the history of the Internet from the launch of Sputnik up to 2013.
For speaking engagements please contact me via: http://vimi.co/contact/
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
The document discusses the results of a study on the impact of climate change on global wheat production. Researchers found that rising temperatures will significantly reduce wheat yields across different regions of the world by the end of the century. Under a high emissions scenario, the study projects a global average decrease in wheat production of around 7.4% with reductions as high as 25% in Central Asia and West Africa.
La Unión Europea ha propuesto un nuevo paquete de sanciones contra Rusia que incluye un embargo al petróleo ruso. El embargo se aplicaría gradualmente durante seis meses para el petróleo crudo y ocho meses para los productos refinados. El objetivo es aumentar la presión sobre Rusia para que ponga fin a su invasión de Ucrania.
This document discusses content related to color and weather. It mentions color without providing details on specific colors. It also briefly references weather but does not specify weather patterns or conditions. The document does not provide enough contextual information to create a more descriptive summary.
This document provides a room-by-room summary of a playschool called "Sanjivni". It describes the various facilities available such as the dance room, reception area, activity room, sleeping room, kitchen, restrooms, and principal's office. It also provides a critical analysis of several rooms that need improvements in storage, organization, cleanliness, and maintenance.
98-7 FM radio is celebrating 5 years on the air. The station is thanking listeners for their support over the past 5 years. 98-7 asks what else they can do for their listeners going forward.
Este documento presenta criterios de diseño y construcción de tomas tirolesas para la captación de agua en ríos de montaña. Describe 7 obras implementadas en Cochabamba, reportando su contexto, características constructivas y dificultades de funcionamiento. También analiza la relación entre el diseño técnico de las tomas y la gestión del agua por parte de los usuarios, identificando problemas de operación y mantenimiento originados tanto en deficiencias de diseño como en la construcción e intervención en la cuenca. El documento provee recomend
This short poem describes a wedding ceremony taking place in Salzburg, Austria between partners from the UK and Austria. The couple completes a star-matching task, signifying an auspicious start to building a home together where they can find joy.
Flipping the ela classroom cawp versionMrsHardin78
This document discusses flipping the classroom model for an English/Language Arts class. It begins by addressing common myths about flipping, noting that videos do not need to be lectures created by the teacher, can take various forms, and that flipping does not always require extra time or only work for quantifiable topics. Next, it provides examples of how grammar, vocabulary and literary symbolism could be taught using a flipped model with video instruction, guided notes, activities and assessments both in-class and as homework. Lastly, it offers tips on creating reliable video content and accessing free or low-cost options for recording and hosting videos.
Twitter and Blogging by @gallit_z and @hughtheteacherGallit Zvi
This document discusses using Twitter and blogging in the intermediate classroom. It introduces the concepts of Web 2.0 technologies, participation, collaboration, and using the internet in new ways. Specific reasons given for using Twitter include making connections through personal learning networks, collaboration, and finding new resources. Reasons to blog with students include giving them an authentic audience, increasing engagement and motivation, improving writing and reading skills, and allowing students to take ownership of their learning.
This document discusses Genius Hour, which allows students one hour per week to pursue their own interests and questions. It emphasizes giving students autonomy to follow their passions. Genius Hour promotes creativity, innovation, collaboration and critical thinking. The document provides examples of how Genius Hour has been implemented, including one day per week or month devoted to the program. Resources are also listed for those wanting more information on setting up Genius Hour.
[DSBW Spring 2009] Unit 02: Web Technologies (2/2)Carles Farré
This document provides summaries of key web technologies including:
- Core technologies like web browsers, web servers, URIs, and HTTP.
- Client-side technologies like HTML, CSS, JavaScript, DOM, AJAX, and Rich Internet Applications.
- Server-side technologies for web applications like CGI, PHP, Java servlets, and JavaServer Pages.
It also discusses enabling technologies for dynamic web content and applications servers, session state management, cookies, the Common Gateway Interface (CGI) standard, and an example "EnWEBats" application built with CGI and PHP.
This document provides an overview of Java web programming and building a simple web application using Java technologies. It discusses using JDBC for database access, implementing servlets and filters, using JSP for views, and different web programming models including Model 1 where business logic is in JSPs and Model 2 where it is separated out to servlets. Code examples and links to GitHub repositories are provided for a TODO list application built using these techniques.
The document discusses servlet fundamentals and the three-tier model for web applications. It describes the three tiers as the client side (web browser), server side (web server/application server), and database (DBMS) tiers. It explains how servlets allow separating the business logic from the user interface, and how they provide dynamic web content through the Java programming language. Common Gateway Interface (CGI) and its drawbacks are also summarized.
The document summarizes a seminar presentation on the World Wide Web (WWW). It discusses the basic client-server architecture of the WWW, with servers hosting documents and clients providing interfaces for users. It also covers the evolution of the WWW to include distributed services beyond just documents. Traditional web systems are described as using simple client-server models with URLs to locate documents on servers. Key aspects like HTTP, document models, and scripting technologies are summarized. Security measures for web transactions like TLS and aspects of caching, replication, and content delivery are also outlined.
The document discusses developing a web server using C language. It describes the functions of a web server including delivering web pages and content to clients in response to HTTP requests. It outlines the key steps in developing a web server in C, including creating listening sockets, forking child processes to handle connections, reading requests, and sending responses. It provides pseudocode examples for functions like log(), web(), and main() that would be used in a C web server. Finally, it discusses the system calls involved in the request/response process at the client and server sides.
CGI allows a web server to interface with external applications to dynamically generate web pages. It uses environment variables and form data passed via GET or POST requests to run scripts or programs that process input and return output to the server. While CGI provides interactivity, it can be slow and has security issues. Server-side includes and client-side scripting offer alternatives for dynamic content generation.
The document provides an overview of HTTP, CGI, servlets, JSPs, and AJAX. It describes how HTTP works for client-server communication. It explains how CGI was used for web server and application integration but had performance and manageability issues. It introduces the servlet/JSP model and web application container as an improved approach. It also gives a brief introduction to using AJAX.
This session will provide attendees with hands-on experience and in-depth knowledge of using Node.js as a runtime environment and Express.js as a web framework to build scalable and fast backend systems. Additionally, attendees will learn about Passport.js, a popular authentication middleware for Node.js, and how to use Prisma ORM to handle database operations in a type-safe and efficient manner.
The session will be conducted by experienced developers who have worked with these technologies and will be able to provide valuable insights and best practices. The session will be interactive and include plenty of opportunities for attendees to ask questions and work on real-world projects.
The document discusses the need for web servers to provide various web services for a company. It provides an overview of the history and development of the World Wide Web and web servers. It then describes key features and functions of the Apache web server, including caching, logging, mapping URLs to files, access control, server-side includes, and virtual hosting.
This document outlines an advanced ASP.NET Web API course agenda. The course will cover topics like model binding and custom formatters, OData, asynchronous operations, and performance improvement techniques. The first part of the course will introduce web technologies like HTTP, JSON, XML, and provide an overview of ASP.NET Web API. Later sections will demonstrate how to work with model binding, custom formatters, OData queries, and async logic. The course will also cover security implementations like basic authentication and token validation, as well as performance techniques such as message compression and high-performance JavaScript serialization.
The document provides an overview of servlets, including:
- What servlets are and how they work
- The lifecycle of a servlet from initialization to handling requests to destruction
- Options for server-side development like CGI, FastCGI, PHP
- Advantages of using servlets like performance, portability, and security
[DSBW Spring 2009] Unit 02: Web Technologies (1/2)Carles Farré
This document summarizes key concepts related to web technologies:
- It outlines core client-side technologies like HTML, CSS, JavaScript, and DOM that allow rendering and interacting with web pages in browsers. It also describes common server-side technologies like PHP, Java servlets, and JSPs that power dynamic web applications.
- It explains fundamental web protocols like HTTP that define communication between browsers and servers, and standards like URIs that identify resources on the web.
- It provides examples of how browsers fetch pages from servers using HTTP requests and responses, and how clients and servers interact through web technologies to deliver dynamic web experiences.
Week 05 Web, App and Javascript_Brandon, S.H. WuAppUniverz Org
The document discusses JavaScript basics and modular JavaScript design. It provides an agenda that covers JavaScript execution, scopes, types, browser objects, blocks, closures, DOM, event handling, and AJAX. It then discusses object-oriented JavaScript, components, containers, layouts, and client-side MVC patterns for modular JavaScript design. Examples of leveraging standards like HTML, CSS, and JavaScript across devices are also provided.
21. Application Development and Administration in DBMSkoolkampus
The document provides an overview of web interfaces to databases and techniques for improving web application performance. It discusses how databases can be interfaced with the web to allow users to access data from anywhere. It then covers topics like dynamic page generation, sessions, cookies, servlets, server-side scripting, and techniques for improving web server performance like caching. The document also discusses performance tuning at the hardware, database, and transaction levels to identify and address bottlenecks.
CouchDB is a document-oriented database that uses JSON documents, has a RESTful HTTP API, and is queried using map/reduce views. Each of these properties alone, especially MapReduce views, may seem foreign to developers more familiar with relational databases. This tutorial will teach web developers the concepts they need to get started using CouchDB in their projects. CouchDB’s RESTful HTTP API makes it suitable for interfacing with any programming language. CouchDB libraries are available for many programming languages and we will take a look at some of the more popular ones.
The document discusses enterprise mashup technologies and WebSphere sMash. It describes how sMash allows developing and running mashups using JavaScript and RESTful services to integrate existing resources. sMash provides a lightweight container, component model, and tools to quickly develop situational applications that consume and produce web resources. However, vendor lock-in is a risk compared to open source alternatives.
1. ASP.NET uses the CLR to replace the existing ISAPI/ASP infrastructure of IIS with a more efficient framework for servicing HTTP requests. It also provides its own framework for compilation, execution, and building user interfaces.
2. ASP.NET is both an evolution of the ASP programming model as well as a revolution, introducing features like compiled pages, separation of code and HTML, server-side controls, and web services.
3. In ASP.NET, every page is compiled into an assembly the first time it is accessed. Subsequent requests use the compiled assembly for improved performance unless the source files have changed.
The document provides an introduction to basic web architecture, including HTML, URIs, HTTP, cookies, database-driven websites, AJAX, web services, XML, and JSON. It discusses how the web is a two-tiered architecture with a web browser displaying information from a web server. Key components like HTTP requests and responses are outlined. Extension of web architecture with server-side processing using languages like PHP and client-side processing with JavaScript are also summarized.
Climate Impact of Software Testing at Nordic Testing DaysKari Kakkonen
My slides at Nordic Testing Days 6.6.2024
Climate impact / sustainability of software testing discussed on the talk. ICT and testing must carry their part of global responsibility to help with the climat warming. We can minimize the carbon footprint but we can also have a carbon handprint, a positive impact on the climate. Quality characteristics can be added with sustainability, and then measured continuously. Test environments can be used less, and in smaller scale and on demand. Test techniques can be used in optimizing or minimizing number of tests. Test automation can be used to speed up testing.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
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.
In his public lecture, Christian Timmerer provides insights into the fascinating history of video streaming, starting from its humble beginnings before YouTube to the groundbreaking technologies that now dominate platforms like Netflix and ORF ON. Timmerer also presents provocative contributions of his own that have significantly influenced the industry. He concludes by looking at future challenges and invites the audience to join in a discussion.
Unlock the Future of Search with MongoDB Atlas_ Vector Search Unleashed.pdfMalak Abu Hammad
Discover how MongoDB Atlas and vector search technology can revolutionize your application's search capabilities. This comprehensive presentation covers:
* What is Vector Search?
* Importance and benefits of vector search
* Practical use cases across various industries
* Step-by-step implementation guide
* Live demos with code snippets
* Enhancing LLM capabilities with vector search
* Best practices and optimization strategies
Perfect for developers, AI enthusiasts, and tech leaders. Learn how to leverage MongoDB Atlas to deliver highly relevant, context-aware search results, transforming your data retrieval process. Stay ahead in tech innovation and maximize the potential of your applications.
#MongoDB #VectorSearch #AI #SemanticSearch #TechInnovation #DataScience #LLM #MachineLearning #SearchTechnology
Why You Should Replace Windows 11 with Nitrux Linux 3.5.0 for enhanced perfor...SOFTTECHHUB
The choice of an operating system plays a pivotal role in shaping our computing experience. For decades, Microsoft's Windows has dominated the market, offering a familiar and widely adopted platform for personal and professional use. However, as technological advancements continue to push the boundaries of innovation, alternative operating systems have emerged, challenging the status quo and offering users a fresh perspective on computing.
One such alternative that has garnered significant attention and acclaim is Nitrux Linux 3.5.0, a sleek, powerful, and user-friendly Linux distribution that promises to redefine the way we interact with our devices. With its focus on performance, security, and customization, Nitrux Linux presents a compelling case for those seeking to break free from the constraints of proprietary software and embrace the freedom and flexibility of open-source computing.
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
A tale of scale & speed: How the US Navy is enabling software delivery from l...sonjaschweigert1
Rapid and secure feature delivery is a goal across every application team and every branch of the DoD. The Navy’s DevSecOps platform, Party Barge, has achieved:
- Reduction in onboarding time from 5 weeks to 1 day
- Improved developer experience and productivity through actionable findings and reduction of false positives
- Maintenance of superior security standards and inherent policy enforcement with Authorization to Operate (ATO)
Development teams can ship efficiently and ensure applications are cyber ready for Navy Authorizing Officials (AOs). In this webinar, Sigma Defense and Anchore will give attendees a look behind the scenes and demo secure pipeline automation and security artifacts that speed up application ATO and time to production.
We will cover:
- How to remove silos in DevSecOps
- How to build efficient development pipeline roles and component templates
- How to deliver security artifacts that matter for ATO’s (SBOMs, vulnerability reports, and policy evidence)
- How to streamline operations with automated policy checks on container images
zkStudyClub - Reef: Fast Succinct Non-Interactive Zero-Knowledge Regex ProofsAlex Pruden
This paper presents Reef, a system for generating publicly verifiable succinct non-interactive zero-knowledge proofs that a committed document matches or does not match a regular expression. We describe applications such as proving the strength of passwords, the provenance of email despite redactions, the validity of oblivious DNS queries, and the existence of mutations in DNA. Reef supports the Perl Compatible Regular Expression syntax, including wildcards, alternation, ranges, capture groups, Kleene star, negations, and lookarounds. Reef introduces a new type of automata, Skipping Alternating Finite Automata (SAFA), that skips irrelevant parts of a document when producing proofs without undermining soundness, and instantiates SAFA with a lookup argument. Our experimental evaluation confirms that Reef can generate proofs for documents with 32M characters; the proofs are small and cheap to verify (under a second).
Paper: https://eprint.iacr.org/2023/1886
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
In the rapidly evolving landscape of technologies, XML continues to play a vital role in structuring, storing, and transporting data across diverse systems. The recent advancements in artificial intelligence (AI) present new methodologies for enhancing XML development workflows, introducing efficiency, automation, and intelligent capabilities. This presentation will outline the scope and perspective of utilizing AI in XML development. The potential benefits and the possible pitfalls will be highlighted, providing a balanced view of the subject.
We will explore the capabilities of AI in understanding XML markup languages and autonomously creating structured XML content. Additionally, we will examine the capacity of AI to enrich plain text with appropriate XML markup. Practical examples and methodological guidelines will be provided to elucidate how AI can be effectively prompted to interpret and generate accurate XML markup.
Further emphasis will be placed on the role of AI in developing XSLT, or schemas such as XSD and Schematron. We will address the techniques and strategies adopted to create prompts for generating code, explaining code, or refactoring the code, and the results achieved.
The discussion will extend to how AI can be used to transform XML content. In particular, the focus will be on the use of AI XPath extension functions in XSLT, Schematron, Schematron Quick Fixes, or for XML content refactoring.
The presentation aims to deliver a comprehensive overview of AI usage in XML development, providing attendees with the necessary knowledge to make informed decisions. Whether you’re at the early stages of adopting AI or considering integrating it in advanced XML development, this presentation will cover all levels of expertise.
By highlighting the potential advantages and challenges of integrating AI with XML development tools and languages, the presentation seeks to inspire thoughtful conversation around the future of XML development. We’ll not only delve into the technical aspects of AI-powered XML development but also discuss practical implications and possible future directions.
1. Unit 2: Web Technologies (2/2)
Core
Web browsers and web servers
URIs
HTTP
Client-Side
Basic: HTML, CSS
Advanced: JavaScript, DOM, AJAX, HTML 5, RIA
Server-Side technologies for Web Applications
CGI
PHP
Java Servlets
JavaServer Pages (JSPs)
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2. Enabling Technologies for Web Applications
Web applications use enabling technologies to make their content
dynamic and to allow their users to affect the business logic.
While a simple web site requires only a Web server, a network
connection, and client browsers; Web applications include also an
application server to manage the business logic and state.
The application server can be located on the same machine as the
Web server and can even execute in the same process space as the
Web server.
The application server is logically a separate architectural element
since it is concerned only with the execution of business logic and
can use a technology completely different from that of the Web
server.
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3. Session State Management
HTTP is a stateless protocol, so web servers do not keep track of
each user request nor associate it with the previous request.
However, many Web applications need to support users’ sessions:
each session represents a single cohesive use of the system,
involving many executable Web pages and a lot of interaction with
the business logic.
The session state keeps track of a user's progress throughout the
use case session. Without a session state management mechanism,
you would have to continually supply all previous information
entered for each new Web page.
Ways to store session state:
Client Session State: URI rewriting, Cookies, Hidden fields in web
forms
Application Server Session State: In-memory dictionary or map.
Database Server State.
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4. Cookies
A cookie is a piece of data that a Web server ask a Web browser to
hold on to, and to return when the browser makes a subsequent
HTTP request to that server.
Limited size: between 100 and 4K bytes.
Initially, a cookie is sent from a server to a browser by adding a line
to the HTTP headers:
Content-type: text/html
Set-Cookie: sessionid=12345; path=/; expires Mon, 09-Dec-2002
11:21:00 GMT; secure
A cookie can have up to six parameters:
Name (required)
Value (required)
Expiration date
Path
Domain
Requires a secure connection
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5. Common Gateway Interface (CGI)
It is a standardized interface to allow Web servers to talk to back-
end programs and scripts that can accept input (e.g., from forms)
and generate HTML pages in response
Typically, these back-ends are scripts written in the Perl (Python or
even some UNIX shell) scripting language.
By convention, CGI scripts live in a directory called cgi-bin, which is
visible in the URI :
http://www.enwebats.com/cgi-bin/enwebats.pl
CGI’s major drawbacks:
At each HTTP request for a CGI script the Web server spawns a new
process, which is terminated at the end of execution.
CGI, like HTTP, is stateless. Therefore, terminating the process where
the CGI script is executed after each request prevents the CGI engine
to retain session state between consecutive user requests.
dsbw 2011/2012 q1 5
7. CGI: User Input Forwarding
METHOD=GET
User input is appended to the requested URI: parameters are
encoded as label/value pairs appended to the URI after a
question mark symbol.
The Web server initializes a environment variable called
QUERY_STRING with the label/value pairs.
In most OSs, environment variables are bounded to 256/1024
chars.
METHOD=POST
User input – encoded as label/value pairs too – is attached to
the HTTP request using the message body.
Upon receipt of a POST request, the Web server extracts the
label/value pairs from the message body, and writes them on
the standard input of the CGI script.
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15. PHP: PHP: Hypertext Preprocessor
Scripting language that is executed on the Web server (e.g.
Apache: mod_php)
PHP files are basically HTML documents with PHP code
embedded through special tags.
PHP syntax resembles C’s or Perl’s. Version 5 is more object
oriented.
Works well with major DBMSs
Is one of the mainstays of the LAMP platform: Linux + Apache
+ MySQL + PHP
Very popular, with a huge community of developers and tool
providers.
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18. Java Servlets
A Servlet is an object that receives a request and generates a
response based on that request.
A Web container is essentially the component of a Web server that
interacts with the servlets. The Web container is responsible for
Managing the lifecycle of servlets.
Mapping a URI to a particular servlet.
Ensuring that the URI requester has the correct access rights.
Servlets’ strong points:
A servlet is initialized only once. Each new request is serviced in its
own separate thread.
The Servlet API easies common tasks like to access request
parameters, create and manage session objects, etc.
It’s Java, 57up1d! (cross-platform, object-oriented, EJB, JDBC, RMI, …)
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19. Java Servlets: Request Scenario
:WebBrowser :WebServer :Servlet
Container
:Servlet
init
Submit
Envia Dades req. http
(POST) req. http
(POST) service
doPost
resp. http
resp. http
destroy
X
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21. Exemple “EnWEBats”: Enwebats.java
public class Enwebats extends javax.servlet.http.HttpServlet
{
public void doPost(javax.servlet.http.HttpServletRequest req,
javax.servlet.http.HttpServletResponse res)
throws javax.servlet.ServletException, java.io.IOException {
res.setContentType("text/html");
java.io.PrintWriter output = res.getWriter();
output.println("<html>");
output.println("<title>Subscription OK</title>");
output.println("<body bgcolor=white>");
output.println("<h3>Your subscription have been processed successfully:</h3>");
output.println("<table border=0>");
java.util.Enumeration paramNames = req.getParameterNames();
while (paramNames.hasMoreElements()) {
String name = (String) paramNames.nextElement();
String value = req.getParameter(name);
output.println("<tr><td>"+name+": </td><td>"+value+"</td></tr>"); }
output.println("</table></body></html>");
output.close(); }}
dsbw 2011/2012 q1 21
22. JavaServer Pages (JSP)
JSPs allows creating easily Web content that has both static and
dynamic components.
JSPs project all the dynamic capabilities of Java Servlet technology
but provides a more natural approach to creating static content.
The main features of JSPs technology are:
A language for developing JSP pages, which are text-based documents
that describe how to process a request and construct a response
Constructs for accessing server-side objects
Mechanisms for defining extensions to the JSP language
A JSP page is a text-based document that contains two types of
text:
static template data, which can be expressed in any text-based format
(HTML, XML, …)
JSP elements, which construct dynamic content.
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23. JSP and Java Servlets
When a Web container is requested a JSP it may happen that:
1. The JSP had not been requested yet: The web container
compiles and initializes a servlet to service the request.
2. The JSP had already been requested: The Web container
forwards the request to the corresponding running servlet.
Therefore, JSPs have all the benefits of using Java Servlets
and, at the same time, allows separating more clearly the
application logic from the appearance of the page
That, in turn, allows
using any Web edition tool or suite.
fast development and testing
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24. JSP Elements (1/2)
JSP Directives: Instructions that are processed by the JSP engine when
the page is compiled to a servlet. Directives are used to set page-level
instructions, insert data from external files, and specify custom tag
libraries. Example:
<%@ page language=="java" imports=="java.util.*" %>
JSP Declaratives: Definitions of global variables and methods.
<%! int time = Calendar.getInstance().get(Calendar.AM_PM); %>
JSP Scriptlets: Blocks of Java code embedded within a JSP page.
Scriptlet code is inserted verbatim into the servlet generated from the
page, and is defined between <% and %>.
JSP Expressions: Expressions that are evaluated inside the
corresponding servlet to be inserted into the data returned by the web
server. Example:
<h2> List of Members for the year <%= clock.getYear() %> </h2>
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25. JSP elements (2/2)
JSP Tags (or Actions): elements that encapsulate common
tasks.
Some are standard, which allow forwarding requests to other
JSPs or servlets (<jsp:forward>), instantiate JavaBeans
components (<jsp:useBean>), etc. Example:
<jsp:useBean id=="clock" class=="jspCalendar" />
Some are custom, that is, they are defined by Java developers
using the JSP Tag Extension API. Developers write a Java class
that implements one of the Tag interfaces and provide a tag
library XML description file that specifies the tags and the java
classes that implement the tags.
dsbw 2011/2012 q1 25
26. “EnWEBats” example: enwebats.jsp
<%@ page language="java" import="java.util.*" %>
<html>
<head>
<title>Subscription OK</title>
</head>
<body bgcolor=white>
<h3>Your subscription have been processed successfully:</h3>
<BR>
<BR>
<table border=0 width=50%>
<% Enumeration paramNames = request.getParameterNames();
while (paramNames.hasMoreElements())
{
String name = (String)nomsParams.nextElement();
String value = request.getParameterValues(name)[0];%>
<tr>
<td><%= name %>:</td><td><%= value %></td>
</tr>
<% } %>
</table>
</body>
</html>
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