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kuni katsuya

Externalizing Service Configuration using BlazeDS and LCDS - 0 views

  • Externalizing Service Configuration using BlazeDS
  • RemoteObject
  • *when* the configuration of your services is being read.
  • ...26 more annotations...
  • application stops working when you move it to another server
  • project in Flex Builder
  • check “use remote object access service”
  • This adds a compiler argument pointing to the location of your
  • services-config.xml
  • -services
  • services-config.xml
  • When you then
  • compile
  • your application, the required
  • values
  • of services-config.xml are
  • baked into the SWF
  • read at
  • compile time
  • not at runtime
  • {server.name}
  • {server.port}
  • {context.root}
  • {server.name} and {server.port} are replaced at
  • server the SWF was loaded from
  • {context.root} is still substituted at
  • compile time
  • Flex SDK provides an API that allows you to configure your channels at runtime
  • number of ways you can pass values to a SWF at runtime
  • read a configuration file using HTTPService at application startup
kuni katsuya

Lean service architectures with Java EE 6 - JavaWorld - 0 views

  • DAOs aren't dead, but they cannot be considered as a general best practice any more. They should be created in a bottom-up, rather than a top-down, fashion. If you discover data-access code duplication in your service layer, just factor it out to a dedicated DAO and reuse it. Otherwise it is just fine to delegate to an EntityManager from a service. The enforcement of an empty DAO layer is even more harmful, because it requires you to write dumb code for even simple use cases. The more code is produced, the more time you must spend to write tests and to maintain it.
  • With JDK 1.5 and the advent of generics, it is possible to build and deploy a generic, convenient, and typesafe DAO once and reuse it from variety of services
  •  
    DAOs aren't dead, but they cannot be considered as a general best practice any more. They should be created in a bottom-up, rather than a top-down, fashion. If you discover data-access code duplication in your service layer, just factor it out to a dedicated DAO and reuse it. Otherwise it is just fine to delegate to an EntityManager from a service. The enforcement of an empty DAO layer is even more harmful, because it requires you to write dumb code for even simple use cases. The more code is produced, the more time you must spend to write tests and to maintain it.
kuni katsuya

Fiddler Web Debugger - Configuring clients - 0 views

  • Debug traffic from another machine (even a device or Unix box)
  • Allow remote clients to connect
  •  
    "HTTP application to use Fiddler? You can either directly configure the WinHTTP application to point to Fiddler, in code, or you can use the following command at the command prompt to tell WinHTTP to use Fiddler: On XP or below: proxycfg -p http=127.0.0.1:8888;https=127.0.0.1:8888 ...or this one to force WinHTTP to use WinINET's proxy settings: proxycfg -u On Vista or above, use an Elevated (admin) command prompt: netsh winhttp set proxy 127.0.0.1:8888 Note: On Windows 7 and earlier, netsh is bitness specific, so you may want to run the above command twice: first using the 32bit NETSH and then using the 64bit NETSH. This blog has more information. This issue was fixed in Windows 8; you can call either NetSh just once to set the proxy for both 32bit and 64bit WinHTTP hosts. Capture traffic from a different account, like ASP.NET on IIS or from a Windows Service? Trying to capture SOAP calls coming from ASP.NET or some background service process?  By default, Fiddler registers as the proxy only for the current user account (ASP.NET runs in a different user account). To get a background process (like the ASP.NET or IIS process) to use Fiddler, you must configure that process to use Fiddler. Typically, this is done by editing web.config or machine.config for the ASP.NET installation, or the configuration for the code running within the Windows Service. Please see http://msdn.microsoft.com/en-us/magazine/cc300743.aspx#S4 or the section on .NET or WinHTTP, depending on which network stack the service is using. Configure Windows Phone 7 to use Fiddler? Please see http://blogs.msdn.com/b/fiddler/archive/2011/01/09/debugging-windows-phone-7-device-traffic-with-fiddler.aspx for actual device hardware, or http://blogs.msdn.com/b/fiddler/archive/2010/10/15/fiddler-and-the-windows-phone-emulator.aspx for the emulator. Configure Google Nexus 7 (Andoid 4.1 Jellybean) to use Fiddler? Please see this page. Configure Android Emulator to use Fiddler? Please see http://au
kuni katsuya

Lean service architectures with Java EE 6 - JavaWorld - 0 views

  • key ingredients of a service-oriented component: Facade: Provides simplified, centralized access to the component and decouples the client from the concrete services. It is the network and transaction boundary. Service: The actual implementation of business logic. Domain structure: This is a structure rather than an object. It implements the component's persistence and exposes all of its state to the services, without encapsulation.
  • This convention not only standardizes the structure and improves maintainability, but also allows automatic dependency validation with frameworks like JDepend, Checkstyle,  Dependometer, SonarJ, or XRadar. You can even perform the validation at build time. If you do, the continuous build would break on violation of defined dependencies. The rules are clearly defined with strict layering: a facade may access a service, and the service a domain object, but not vice versa
kuni katsuya

Why Service Isn't A ServiceFacade, But ServiceFacade Is Sometimes A Service... : Adam B... - 0 views

  • boundary, which main responsibilities are:Providing coarser granularityEnsuring consistencyProviding a defined entry point which can be easily decorated with aspects / interceptorsExposure of components (what components are we will cover later) functionality to remote clients via IIOP, REST, SOAP, JMS, Hessian etc...
  • ServiceFacade - the facade to Services. The Services just rely on a certain amount of cross cutting aspects and concentrate on the realization of business logic
  • only invokes Services in consistent way, mostly using transactions
  • ...2 more annotations...
  • Services can remain independent
  • ServiceFacade combines them
kuni katsuya

Chapter 16. Extensibilty - 0 views

  • 16.2. Writing a Security Service
  • login(Object credentials)
  • authorize(AbstractSecurityContext context)
  • ...20 more annotations...
  •  logout() 
  • An implementation of this interface must be thread safe
  • If authorization fails, either because the user is not logged in or because it doesn't have required rights, it must throw an appropriate org.granite.messaging.service.security.SecurityServiceException.
  • Writing a Security Service
  • SecurityService interface
  • nothing to do with a true Flex destination
  • only one instance of this service is used in the entire web-app and will be called by concurrent threads
  • configure
  • login
  • This method is called upon each and every service method call invocations (RemoteObject) or subscribe/publish actions (Consumer/Producer). When used with RemoteObjects, the authorize method is responsible for checking security, calling the service method, and returning the corresponding result.
  • authorize
  • logout
  • handleSecurityException
  • default implementation of this method in AbstractSecurityService is to do nothing
  • security services are not exposed to outside calls
  • configure
  • login
  • authorize
  • logout
  • handleSecurityException
kuni katsuya

2. Sample Projects - Confluence - 0 views

  •  
    EJB 3 Session Services
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

Lean service architectures with Java EE 6 - JavaWorld - 0 views

  • Entity-Control-Boundary (ECB) architectural pattern matches perfectly with our pattern language
  • domain structure is an Entity, the Control is a service, and the Boundary is realized with a facade
  • In simpler cases the facade and service can collapse, and a service would be realized only as a facade's method in that case
kuni katsuya

Services, practices & tools that should exist in any software development house, part 1... - 1 views

  • Services, practices & tools that should exist in any software development house, part 1
  • Code repository/Versioning system
  • Issue & Bug Tracker
  • ...5 more annotations...
  • Corporate - central Wiki
  • Build Server (Continuous Integration)
  • Testing (tools and practices)
  • Code Coverage
  • Services, practices & tools that should exist in any software development house, part 1
kuni katsuya

Chapter 17. Configuration Reference - 0 views

  • <security>
  • custom security service that should implement org.granite.messaging.service.security.SecurityService
  • services-config.xml
  • ...1 more annotation...
  • contains all the remoting and messaging configuration of the application. There are three main sections: channels, factories and services.
kuni katsuya

Chapter 6. Messaging (Gravity) - 0 views

  • Granite Data Services provides a messaging feature, code name Gravity, implemented as a Comet-like service with AMF3 data polling over HTTP (producer/consumer based architecture)
  • GraniteDS messaging relies on two main AS3 components on the Flex side: org.granite.gravity.Consumer and org.granite.gravity.Producer
  • 6.3. Common Configuration There are three main steps to configure Gravity in an application: Declare the Gravity servlet implementation for your target server in web.xml Declare a messaging service and destination in services-config.xml, mapped to a specific channel definition of type GravityChannel
  • ...10 more annotations...
  • org.granite.gravity.tomcat.GravityTomcatServlet
  • /gravityamf/*
  • 6.3.1. Supported Application Servers
  • GraniteDS provides a generic servlet implementation that can work in any compliant servlet container
  • blocking IO and thus will provide relatively limited scalability
  • GraniteDS thus provides implementations of non blocking messaging for the most popular application servers.
  • asynchronous non blocking servlets
  • JBoss 5+org.granite.gravity.jbossweb.GravityJBossWebServletOnly with APR/NIO enabled (APR highly recommended)
  • GlassFish 3.xorg.granite.gravity.async.GravityAsyncServletUsing Servlet 3.0
  • Tomcat 7.x / Jetty 8.xorg.granite.gravity.async.GravityAsyncServletUsing Servlet 3.0
kuni katsuya

Interview of GraniteDS founders | RIAgora - 0 views

  • explained the origin of GraniteDS and the differences with LiveCycle Data Services
  • ActionScript3 reflection API
  • GraniteDS 2.2
  • ...8 more annotations...
  • JSR-303 (“Bean Validation”) ActionScript3 framework for form validation
  • validation framework is a specific adaptation of the JSR-303 (Bean Validation) specification to Flex: like its Java counterpart, it relies on validation annotations placed on bean properties and provides an engine API that lets you validate your forms without writing by hand a specific validator for each of your input fields
  • code generation tools provided by GraniteDS so that when you write your Java entity bean with validation annotations, they are automatically replicated in your ActionScript3 beans
  • problem with LCDS is mainly that it promotes a strict “client / server” architecture, with – roughly speaking – a heavy Flex client application connected to a server almost reduced to a database frontend
  • big majority of  these organizations use BlazeDS, a free and open-source subset of LCDS
  • need more advanced mechanisms than just Remoting start looking for open-source libraries to enable deeper integrations with the Java business layer, and GraniteDS is for sure the most popular project
  • “Flex Data Services” (now renamed to “Live Cycle Data Services”)
  • Flex Data Services seemed too “client-centric”
kuni katsuya

Comparison - 0 views

  • TomEE is a superset of OpenEJB
  • Tomcat
  • TomEE
  • ...5 more annotations...
  • TomEE+
  • OpenEJB
  • Java API for XML Web Services (JAX-WS) Java API for RESTful Web Services (JAX-RS) Java EE Connector Architecture Java Messaging Service (JMS)
  • Java Servlets Java ServerPages (JSP) Java ServerFaces (JSF) Java Transaction API (JTA)
  • Java Persistence API (JPA) Java Contexts and Dependency Injection (CDI) Java Authentication and Authorization Service (JAAS) Java Authorization Contract for Containers (JACC) JavaMail API Bean Validation Enterprise JavaBeans
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

tiainen: Easy OAuth using DaliCore and Glassfish: the service provider - 0 views

  • Easy OAuth using DaliCore and Glassfish: the service provider
  • CDI configuration
  • use CDI to inject a reference to the UserBean and the OAuthBean
  • ...2 more annotations...
  • JPA configuration
  • dalicore-oauth persistently stores its request and access tokens, its users and its list of service consumers
kuni katsuya

Services, practices & tools that should exist in any software development house, part 2... - 0 views

kuni katsuya

WebORB for Java Overview - 0 views

  • WebORB for Java
  • Solid Alternative to Adobe LCDS and BlazeDS
  • drop-in replacement for Adobe Live Cycle Data Services (LCDS) and BlazeDS
  • ...5 more annotations...
  • free and more feature rich alternative to BlazeDS, but also outranks LCDS’ out-of-the-box features when it comes to data management, streaming media and integrating with mobile devices and Cloud computing
  • developer tools like code generation, invocation test drive and interoperability with multiple IDEs and frameworks
  • supporting integration with mobile clients (Android, Windows Phone 7, RIM Playbook and soon iOS) and the Java service layer, which includes support for Java POJOs, EJBs, Spring Beans, Grails controllers, Hibernate Objects and XML Web Services
  • WebORB for Java
  • WebORB for Java
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