In java script we used ‘this’ keyword and ‘this’ as a keyword that "evaluates to the value of the ThisBinding of the current execution context". ThisBinding is something that the JavaScript interpreter maintains as it evaluates JavaScript code, like a special CPU register which holds a reference to an object. The interpreter updates the ThisBinding whenever establishing an execution context ...
Lot of time pull request cannot be merged online due to conflicts. If no Conflict it is easy for you to do merging, from even in web with a one click. Confirm the merge If the pull request cannot be merged online or you wish to test things locally before sending the merge to the repo on Github, ...
I was looking for JS testing frame work and firstly I found mocha and my last three post was about mocha. In there I was looking sample and design of it plus pons and cons of it. Now I am going to looking on 'Jasmine'[1] which is a behavior-driven development framework for testing JavaScript code.It do not have depend on ...
React is a open source UI library developed at Facebook to facilitate the creation of interactive and reusable UI components. It is not only does it perform on the client side, but it can also be rendered server side, and they can work together inter-operably. React has pluggable back-ends so it can be used to target the DOM, HTML, canvas, ...
This post will be explaining how to create proxy service from registery. WSDL is importing XSD and that XSD also importing XSD. (If you never used ESB before Read this) 1. Start the ESB from wso2esb-4.0.3\bin\wso2server.bat or .sh 2. Login to ESB 3. Go to Registry --> Browse in left hand side panel 4. Then Go to '/_system/governance/services' 5. click ...
Here is my previous post to build zeppelin from source. This post will take you a tour on “notebook feature of zeppelin”. NoteBook contain with note. Note will have paragraphs. 1. Start you zeppelin by entering /incubator-zeppelin $ ./bin/zeppelin-daemon.sh start 2. Go to localhost:8080 and click on ‘NoteBook’ in top menu. Then click on ‘Create new note’. Now you will ...
Here I am using wso2 UES and I need to have RXT view in management console where I can see all the Gadget and Sites in store (Enterprise Store) WSO2 UES 1.0.0 [1] was release with carbon 4.1.0. So firstly you need to add repo "http://dist.wso2.org/p2/carbon/releases/4.1.0" with name repo-410 org.wso2.carbon.governance.list is unsatisfied so make governance.list active it need task and ...
SOA (service-oriented architecture) is a style of software architecture that can be used in designing and developing software as form of interoperable services. There are 3 things that are coming in to my mind as I head SOA. A collection of services - Services can be for web-based applications or even softare (Eclipse) - Web Services Description Language (WSDL) describes ...
I was investigating on proxy configuration and proxy relevant issue under java development. Thought it is better to share and this post. Scenario is addressed in the post. Java class run inside (be hide) a proxy server. Java class is calling out side of the proxy and that url connection must go through proxy. Post is cover how set proxy ...
I was building branch where normally that easy to make, But I need to build 3.2.2 that is releasing soon. So all of them were committing to it. So it was breaking lot of time. But truly this help to learn lot in pom.xml and maven. I was getting Build error on the way, In here I was missing some ...
In this post will give introduction to Markov models and Hidden Markov models as mathematical abstractions, with some examples. In probability theory, a Markov model is a stochastic model that assumes the Markov property. A stochastic model models a process where the state depends on previous states in a non-deterministic way. A stochastic process has the Markov property if the ...
Last week post was on 'Major Areas of Event Processing' and this post will continue which was there. This post describe the concepts be hide event processing and it can be consider as entry point for event processing concepts. Event What is event? An event is an occurrence within a particular system or domain; it is something that has happened, ...
Post will go from Evolution of web communication Web socket web socket implemented in Apache Tomcat 7 How we Develop Web socket feature for jaggery Tomcat 7 introduced a WebSocket implementation. introduced a WebSocket implementation. Firstly I will give web socket's benefits and limitations plus briefly web socket implemented in Apache Tomcat 7. WebSocket is considered as evolution of web ...
This post will explain JUnit test. By following this steps you will make you first JUnit test in 5 minuets. Here are some points on JUnit test. A unit test is written by a developer that executes a specific functionality in the code under test. Unit tests ensure that code is working as intended even after code changes. JUnit 4.x ...
In here I will we using ELB 2.1.0 and AS 5.2.0. Cluster will be setup on window environment. I have built this cluster for few time with wso2 product and think it worth to write. The post have main three sub topic Setting up Elastic Load Balancer Setting up AS as manger Setting up AS as worker node Setting up ...
Some time we need to customize windows as we need it. It is true it is not easy as ‘Linux’. But you can do some stuff as you needed. Go to start and enter ‘regedit.exe’ and open it. Now do some play with registry in windows Change Right Click menu of Folder 1. go to ‘HKEY_CLASSES_ROOT\Folder\shell’ 2. Add a new ...
ZooKeeper is an open source distributed configuration service, synchronization service, and naming registry for large distributed systems. ZooKeeper was a sub project of Hadoop. ZooKeeper's architecture supports high-availability through redundant services. It support naming service, configuration management, synchronization, leader election, message Queue and notification system. ZooKeeper is a high-performance coordination service for distributed applications “ZooKeeper: Because Coordinating Distributed S
Identity Server can be configured to lock a user when configurable number of login attempts are exceeded or via unlockUserAccount service. UnlockUserAccount service in https://localhost:9443/services/UserIdentityManagementAdminService?wsdl. Configuring lock time in the identity-mgt.properties file (this can be specified using the Authentication.Policy.Account.Lock.Time parameter). Now we can try this Out. 1. Update below parameters wso2is-4.6.0\repository\conf\security\identity-mgt.properties 2. Identity.Li
The Hype Cycle is a branded graphical representation tool [1] developed and used by IT research and advisory firm Gartner for representing the maturity, adoption and social application of specific technologies and how they are potentially relevant to solving real business problems and exploiting new opportunities. It gives a view of how a technology or application will evolve over time. ...
post will explain how to create proxy service in WSO2 ESB with using mock service end point. Mock service will be created from SoapUI[1]. This very basic post regards to subject. In here I will be using WSO2 ESB 4.8.0 SoapUI 4.6.2 Use case. Use case will be very basic one. - Mock service will be create from echo service ...
