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kuni katsuya

Dependency injection discourages object-oriented programming? @ Blog of Adam Warski - 0 views

  • Dependency injection discourages object-oriented programming?
  • if you’re using DI, and you have an X entity, do you have an XService or XManager with lots of method where X is the first argument?
    • kuni katsuya
       
      evidence of the anti-pattern of procedural design in a java ee6 cdi application
  • previous way is more procedural
    • kuni katsuya
       
      ie. ProductService.ship(Product,Customer)
  • ...12 more annotations...
  • service/manager is a set of procedures you can run, where the execution takes a product and a customer as arguments
  • better
  • OO approach
  • not saying that achieving the above is not possible with a DI framework
  • only that DI
  • encourages the ProductService approach
    • kuni katsuya
       
      well, dependency injection, but moreover, the soa approach to service design tends to force otherwise intelligent software engineers into doing procedural design the services just end up being bags of method calls that implement any type of behavior, with the domain objects or entity beans being reduced to mere data structures with little responsibility or behavior beyond persistence. (which, in this anti-pattern, is typically mostly provided by the repository or dao class! ie. domain object crud)
  • it’s just easier
    • kuni katsuya
       
      ... if you just blindly follow the anti-pattern, of course  ;)
  • many benefits
    • kuni katsuya
       
      with the procedural approach, you also cannot implement polymorphic behavior, for instance
  • builder
  • fluent interface
  • it’s not for small projects
    • kuni katsuya
       
      fuckwhat? small or big matters not. if di is applied poorly, regardless of project size, it's an anti-pattern! disregard these comments!
  • problems with DI frameworks:
    • kuni katsuya
       
      not sure i agree with these points, but will refuse in a later sticky note
kuni katsuya

AnemicDomainModel - 0 views

  • AnemicDomainModel
  • Eric Evans
  • basic symptom of an Anemic Domain Model
  • ...40 more annotations...
  • The catch comes when you look at the
  • behavior
  • there is hardly any behavior on these objects, making them little more than bags of getters and setters
  • I was chatting with
    • kuni katsuya
       
      note, the 'i' here, is mr. MARTIN FOWLER!! and of course, eric evans hails from domain driven design fame
  • fundamental horror
  • it's so contrary to the basic idea of object-oriented design
  • combine
  • data and process together
  • procedural style design
  • completely miss the point of what object-oriented design is all about
  • It's also worth emphasizing that putting behavior into the domain objects
  • should not contradict the solid approach of using layering to separate domain logic from such things as persistence and presentation responsibilities
  • logic that should be in a domain object is domain logic
  • validations
  • calculations
  • business rules
  • One source of confusion in all this is that many OO experts do recommend putting a layer of procedural services on top of a domain model, to form a Service Layer
  • this isn't an argument to make the domain model
  • void of behavior
  • service layer advocates use a service layer in conjunction with a behaviorally rich domain model.
  • does not contain business rules or knowledge, but
  • only coordinates
  • tasks and delegates work to
  • collaborations of domain objects
  • in the next layer down
  • can have state that reflects the
  • progress of a task
  • for the user or the program
  • Domain Layer
  • Application Layer
  • Service Layer
  • Responsible for
  • representing concepts of the business
  • business rules
  • This layer is the heart of business software
    • kuni katsuya
       
      ... and has the *most value* to an organization investing in writing their own software infrastructure software (eg. user interface, orm, application server-related frameworks) or plumbing code should be treated as commodities where possible, unless, the business consciously decides that a custom, home-grown implementation is absolutely required for patenting or other differentiation reasons and/or that no existing off-the-shelf solution can be used but these cases should be rare! do not blindly fall for the not-invented-here syndrome
  • all the key logic lies in the domain layer
  • I don't know why this anti-pattern is so common
  • if they come from a
  • data background
    • kuni katsuya
       
      this is why during every sprint, i reiterate that the data model up approach to designing the system is OH SO WRONG but nobody listens
  • J2EE's Entity Beans
    • kuni katsuya
       
      damn baggage from  eons ago!!!
kuni katsuya

Implementing RBAC, a practical approach - ServerCare home - 0 views

  • Implementing RBAC, a practical approach
  • The NIST RBAC model addresses the limitations of RBAC for enterprise-wide deployments, which typically focuses on the increased complexity of managing sufficient roles and assigning adequate role membership within a heterogeneous IT infrastructure
  • Higher management needs to understand that RBAC implementation has a profound impact on the way some parts of the company operate
  • ...1 more annotation...
  • For example; certain procedures and workflows will need to be developed (new hire/leaver procedures for example)
kuni katsuya

Anemic domain model - Wikipedia, the free encyclopedia - 0 views

  • objects containing only data
    • kuni katsuya
       
      ie. dumb data structures with little or no behavior
  • objects containing only code
    • kuni katsuya
       
      ie. classes that are just containers for methods that implement the behavior part of the domain objects (aka the procedures)
  • Martin Fowler, who considers the practice an anti-pattern
  • ...14 more annotations...
  • Benefit
    • kuni katsuya
       
      none
  • Liabilities
    • kuni katsuya
       
      lots
  • Logic cannot be implemented in a truly object-oriented way
    • kuni katsuya
       
      for example, polymorphic behavior
    • kuni katsuya
       
      dammit, can't change highlight color if there's also a sticky note attached!!! arrgggghhhh!!! diigo plugin bug!!
  • Violation of the encapsulation
  • domain model's objects cannot guarantee their correctness
  • validation and mutation logic is placed somewhere outside
    • kuni katsuya
       
      instead of, say, attaching validation 'behavior' directly on, but still decoupled from domain classes themselves (eg. validation rule annotations on jpa entity beans)
    • kuni katsuya
       
      dammit, can't change highlight color if there's also a sticky note attached!!! arrgggghhhh!!! diigo plugin bug!!
  • Necessitates a service layer when sharing domain logic across differing consumers of an object model.
  • Makes a model less expressive and harder to understand.
  • Facilitates code duplication among transactional scripts and similar use cases, reduces code reuse.
  • Liabilities
  • Liabilities
  • Liabilities
  • Liabilities
  • Liabilities
kuni katsuya

Enterprise Architect - Resources - Model Driven Generation (MDG) Technologies - 0 views

  • Model Driven Generation (MDG) Technologies
  • MDG Technologies allow users to extend Enterprise Architect's modeling capabilities to specific domains and notations. MDG Technologies seamlessly plug into Enterprise Architect to provide additional toolboxes, UML profiles, patterns, templates and other modeling resources.
  • Free MDG Technology downloads for Enterprise Architect:
  • ...12 more annotations...
  • EJB MDG Technology for Enterprise Java Beans allows the user to model EJB entities and EJB sessions, complete with UML profiles for modeling EJB, EJB patterns and Code Management. (requires Enterprise Architect 4.1 or later)
  • ICONIX AGILE DDT ICONIX Agile Developer - Design-Driven Testing (DDT) streamlines the ICONIX modeling process, providing: Convenient modeling of robustness diagrams Automatic generation of sequence diagram structures from robustness diagrams Transformation of robustness control elements to test diagrams Transformation of sequence diagram elements to test diagrams Transformation of requirement diagrams to test diagrams Transformation between test cases and test classes. (JUnit & NUnit) Built-in model validation rules for ICONIX robustness diagrams (requires Enterprise Architect 7.5 or later)
  • Testing MDG Technology for Testing helps users to rapidly model a wide range of testing procedures including component testing, SUT, Test Cases and more. (requires Enterprise Architect 4.1 or later)
  • Instructions for loading an MDG Technology EXE file: Download and run the .exe file to install the MDG technology. Open Enterprise Architect. Select from the Main Menu Add-Ins | XYZ Technology | Load.
  • Built-in MDG Technologies: Most of the MDG Technologies provided by Sparx Systems are built into Enterprise Architect directly. Depending on your edition of Enterprise Architect, some or all of the following MDG Technologies will be available:
  • Gang of Four Patterns
  • Mind Mapping
  • Web Modeling
  • Data Flow (DFD)
  • Entity-Relationship (ERD)
  • Business Rule Model
  • BPMN™
kuni katsuya

Plugins - Jenkins - Jenkins Wiki - 0 views

  • Git Plugin — This plugin allows use of Git as a build SCM
  • Subversion Plugin — This plugin adds the Subversion support (via SVNKit) to Jenkins
  • Subversion Release Manager — This plugin allows you to set up a job in Hudson for building specific revisions of a project.
  • ...77 more annotations...
  • Subversion Tagging Plugin — This plugin automatically performs subversion tagging (technically speaking svn copy) on successful build.
  • ViewVC Plugin — This plugin integrates ViewVC browser interface for CVS and Subversion with Hudson.
  • Source code management
  • Build Pipeline Plugin — This plugin creates a pipeline of Hudson\Jenkins jobs and gives a view so that you can visualise it.
  • Build tools
  • JBoss Management Plugin — This plugin allows to manage a JBoss Application Server during build procedure
  • Maven 2 Project Plugin — Jenkin's Maven 2 project type
  • Phing Plugin — This plugin allows you to use Phing to build PHP projects.
  • Post build task — This plugin allows the user to execute a shell/batch task depending on the build log output. Java regular expression are allowed.
  • Promoted Builds Plugin — This plugin allows you to distinguish good builds from bad builds by introducing the notion of 'promotion'.
  • Publish Over SSH Plugin — Publish files and/or execute commands over SSH (SCP using SFTP)
  • Selenium AES Plugin — This plugin is for continuous regression test by Selenium Auto Exec Server (AES).
  • Vagrant Plugin — This plugin allows booting of Vagrant virtual machines, provisioning them and also executing scripts inside of them
  • Unicorn Validation Plugin — This plugin uses W3C's Unified Validator, which helps improve the quality of Web pages by performing a variety of checks.
  • Build wrappers
  • Android Emulator Plugin — Lets you automatically generate, launch and interact with an Android emulator during a build, with the emulator logs being captured as artifacts.
  • Artifactory Plugin — This plugin allows deploying Maven 2, Maven 3, Ivy and Gradle artifacts and build info to the Artifactory artifacts manager.
  • AWS Cloudformation Plugin — A plugin that allows for the creation of cloud formation stacks before running the build and the deletion of them after the build is completed.
  • Build Keeper Plugin — Select a policy for automatically marking builds as "keep forever" to enable long term analysis trending when discarding old builds - or use to protect logs and artifacts from certain builds
  • Build Name Setter Plugin — This plugin sets the display name of a build to something other than #1, #2, #3, ...
  • SSH plugin — You can use the SSH Plugin to run shell commands on a remote machine via ssh.
  • SeleniumRC Plugin — This plugin allows you to create Selenium server instance for each project build.
  • Vagrant Plugin — This plugin allows booting of Vagrant virtual machines, provisioning them and also executing scripts inside of them
  • Timestamper — Adds timestamps to the Console Output.
  • VirtualBox Plugin — This plugin integrates Jenkins with VirtualBox (version 3, 4.0 and 4.1) virtual machine.
  • Version Number Plugin — This plugin creates a new version number and stores it in the environment variable whose name you specify in the configuration.
  • VMware plugin — This plugin allows you to start a VMware Virtual Machine before a build and stop it again after the build completes.
  • AWS Cloudformation Plugin — A plugin that allows for the creation of cloud formation stacks before running the build and the deletion of them after the build is completed.
  • Desktop Notifier for Jenkins — This is useful for those who are looking for a Desktop Notifier for Jenkins builds to automatically notify you about failed builds directly from their desktops.
  • Email-ext plugin — This plugin allows you to configure every aspect of email notifications. You can customize when an email is sent, who should receive it, and what the email says.
  • Google Calendar Plugin — This plugin publishes build records over to Google Calendar
  • HTML5 Notifier Plugin — Provides W3C Web Notifications support for builds.
  • Jabber Plugin — Integrates Jenkins with the Jabber/XMPP instant messaging protocol. Note that you also need to install the instant-messaging plugin.
  • Build reports
  • Checkstyle Plugin — This plugin generates the trend report for Checkstyle, an open source static code analysis program. 
  • Clover PHP Plugin — This plugin allows you to capture code coverage reports from PHPUnit. For more information on how to set up PHP projects with Jenkins have a look at the Template for Jenkins Jobs for PHP Projects.
  • Crap4J Plugin — This plugin reads the "crappy methods" report from Crap4J. Hudson will generate the trend report of crap percentage and provide detailed information about changes.
  • Dependency Analyzer Plugin — This plugin parses dependency:analyze goal from maven build logs and generates a dependency report
  • Dependency Graph View Plugin — Shows a dependency graph of the projects using graphviz. Requires a graphviz installation on the server.
  • FindBugs Plugin — This plugin generates the trend report for FindBugs, an open source program which uses static analysis to look for bugs in Java code. 
  • Grinder Plugin — This plugin reads output result files from Grinder performance tests, and will generate reports showing test results for every build and trend reports showing performance results across builds.
  • JSUnit plugin — This plugin allows you publish JSUnit test results
  • Performance Plugin — This plugin allows you to capture reports from JMeter and JUnit . Hudson will generate graphic charts with the trend report of performance and robustness.
  • PerfPublisher Plugin — This plugin generates global and trend reports for tests results analysis. Based on an open XML tests results format, the plugin parses the generated files and publish statistics, reports and analysis on the current health of the project.
  • PMD Plugin — This plugin generates the trend report for PMD, an open source static code analysis program. 
  • Sonar plugin — Quickly benefit from Sonar, an open-source dashboard based on many analysis tools like Checkstyle, PMD and Cobertura.
  • testng-plugin — This plugin allows you to publish TestNG results.
  • Violations — This plug-in generates reports static code violation detectors such as checkstyle, pmd, cpd, findbugs, codenarc, fxcop, stylecop and simian.
  • xUnit Plugin — This plugin makes it possible to publish the test results of an execution of a testing tool in Jenkins.
  • Artifact uploaders
  • ArtifactDeployer Plugin — This plugin makes it possible to copy artifacts to remote locations.
  • Artifactory Plugin — This plugin allows deploying Maven 2, Maven 3, Ivy and Gradle artifacts and build info to the Artifactory artifacts manager.
  • Confluence Publisher Plugin — This plugin allows you to publish build artifacts as attachments to an Atlassian Confluence wiki page.
  • Deploy Plugin — This plugin takes a war/ear file and deploys that to a running remote application server at the end of a build
  • FTP-Publisher Plugin — This plugin can be used to upload project artifacts and whole directories to an ftp server.
  • HTML Publisher Plugin
  • Publish Over FTP Plugin — Publish files over FTP
  • Publish Over SSH Plugin — Publish files and/or execute commands over SSH (SCP using SFTP)
  • S3 Plugin — Upload build artifacts to Amazon S3
  • SCP plugin — This plugin uploads build artifacts to repository sites using SCP (SSH) protocol.
  • Hudson Helper for Android — Monitor your CI builds right from your Android device.
  • Hudson Mobi, the iPhone, iPod and Android client for Hudson CI — The iPhone, iPod and iPad client for Hudson CI monitoring on the road.
  • Hudson Monitor for Android — Monitor and display the status of your builds on your Android™ phone.
  • External site/tool integrations
  • Jira Issue Updater Plugin — This is a Jenkins plugin which updates issues in Atlassian Jira (by changing their status and adding a comment) as part of a Jenkins job.
  • JIRA Plugin — This plugin integrates Atlassian JIRA to Jenkins.
  • ChuckNorris Plugin — Displays a picture of Chuck Norris (instead of Jenkins the butler) and a random Chuck Norris 'The Programmer' fact on each build page.
  • UI plugins
  • Active Directory plugin — With this plugin, you can configure Jenkins to authenticate the username and the password through Active Directory.
  • Audit Trail Plugin — Keep a log of who performed particular Jenkins operations, such as configuring jobs.
  • JClouds Plugin — This plugin uses JClouds to provide slave launching on most of the currently usable Cloud infrastructures.
  • Checkstyle Plugin — This plugin generates the trend report for Checkstyle, an open source static code analysis program. 
  • FindBugs Plugin — This plugin generates the trend report for FindBugs, an open source program which uses static analysis to look for bugs in Java code. 
  • JIRA Plugin — This plugin integrates Atlassian JIRA to Jenkins.
  • M2 Release Plugin — This plugin allows you to perform a release build using the maven-release-plugin from within Jenkins.
  • PMD Plugin — This plugin generates the trend report for PMD, an open source static code analysis program. 
  • Meme Generator Plugin — Generate Meme images when a build fails (and returns to stable), and post them on the project page.
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