Messages posted by Joe San

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Profile for Joe San » Messages posted by Joe San

Message	Posted on	Last post by
[+] Design » Algorithmic Thinking - Complexity & Comparisons (Go to)		Daniel Zingaro
That's a great reply! Solving problems with different approach and finding out which one is efficient is a good way to learn and reason about. Thanks!
[+] Design » Algorithmic Thinking - Complexity & Comparisons (Go to)		Daniel Zingaro
Does the book also talk about using different algorithmic techniques for a certain problem set and goes to the depth to explain why certain algorithm is best suited for certain tasks? Do you also explain about the Time complexity in Big O notation?
[+] Design » Algorithmic Thinking - Book Question (Go to)		Daniel Zingaro
Thanks for the reply! Those topics around competitive programming seems interesting!
[+] Design » Algorithmic Thinking Language of Choice (Go to)		Daniel Zingaro
I agree with you, it is about thinking in terms of algorithms, but nevertheless I wanted to find out if the book takes an imperative approach or a functional approach to implement the algorithms!
[+] Design » Algorithmic Thinking Language of Choice (Go to)		Daniel Zingaro
Which programming language is used in this book? Is it C?
[+] Design » Algorithmic Thinking - Book Question (Go to)		Daniel Zingaro
Interesting book! Where do I find the ToC? The Amazon link seems not to have it, How is this book different from the Grokking Algorithms one?
[+] Cloud/Virtualization » Cloud Native DevOps with Kubernetes (Go to)		Justin Domingus
Does this book talk about scripting deployment of a Kubernetes cluster? For example., using Terraform scripts, I can specify a barebones k8s cluster and by the execution of this script my k8s cluster can be set up on demand on any cloud provider. does this book address this?
[+] Other Big Data » Spark SQL Without a Spark Server (Go to)		Joe San
I'm contemplating using Spark SQL for some of my data needs. I have a Python codebase that uses the Pandas library. I guess if I were to migrate that to a Scala codebase, I need something similiar to Pandas and I guess Spark SQL could be that. Now my question is, can I use Spark SQL without a Spark server? If yes, then I see Spark SQL as an alternative to Pandas. If not can anyone suggest me some good library to work with a Pandas kind of a library in Scala?
[+] Cloud/Virtualization » Blockchain Technology (Go to)		William Mougayar
I have been reading through some blogs on getting to know myself better on this promising technology. I'm astonished that there is a book already on this. It is interesting. I had a look at the ToC of this book "The Business Blockchain" but it does not look like a technical book, but rather a very quick overview of what Blockchain is. Is there a reason why this book was kept simple this way? I was expecting some sample applications where I could use Blockchain (using Etherum or IBM's HyperLedger)
[+] Web Services » Apache CXF WebServices Client Error (Go to)		Joe San
Give me a cow!!
[+] Web Services » Apache CXF WebServices Client Error (Go to)		Joe San
I figured it out by myself. Here is what I had to do: 1. Add the following dependencies (if you have not added it already) "org.apache.cxf" % "cxf-rt-ws-security" % "3.1.4", "org.apache.ws.security" % "wss4j" % "1.6.13", 2. In the place where you set information in the client proxy, add the following: val myWebService = factory.create().asInstanceOf[MyWebService] val proxy = ClientProxy.getClient(myWebService) val endpoint = proxy.getEndpoint import collection.JavaConversions._ val callbackHandler = new CallbackHandler { override def handle(callbacks: Array[Callback]): Unit = { val pc = callbacks(0).asInstanceOf[WSPasswordCallback] pc.setPassword("your password") } } val outProps = Map( WSHandlerConstants.ACTION -> WSHandlerConstants.USERNAME_TOKEN, WSHandlerConstants.USER -> "Your user name", WSHandlerConstants.PASSWORD_TYPE -> WSConstants.PW_TEXT ) outProps.updated(WSHandlerConstants.PW_CALLBACK_REF, callbackHandler) val wssOut = new WSS4JOutInterceptor(outProps) endpoint.getOutInterceptors.add(wssOut) // set the credentials, timeouts etc proxy.getRequestContext().put("password", "your password")
[+] Web Services » Apache CXF WebServices Client Error (Go to)		Joe San
I have a client that I generate using the WSDL that I have. When I tried to connect to this WebService, I get the following error: javax.xml.ws.soap.SOAPFaultException: An error occurred when verifying security for the message. at org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java:161) The actual server that hosts the WebService expects a SOAP message that contains the security header like: <soapenv:Header> <o:Security s:mustUnderstand="1" xmlns:o="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"> <o:UsernameToken u:Id="XXXX"> <o:Username>XXXX</o:Username> <o:Password Type="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordText">XXXX</o:Password> </o:UsernameToken> </o:Security> </soapenv:Header> How to get this along with my SOAP message that gets generated when the request is made? This is what I do in my code to call the WebService: val factory = new org.apache.cxf.jaxws.JaxWsProxyFactoryBean() factory.setServiceClass(classOf[MyWebService]) // if there is an address, then let's set it! factory.setAddress("https://my/server/address/MyWebService.svc") // log incoming and outgoing factory.getInInterceptors.add(new org.apache.cxf.interceptor.LoggingInInterceptor()) factory.getOutInterceptors.add(new org.apache.cxf.interceptor.LoggingOutInterceptor()) val myServiceClient = factory.create().asInstanceOf[MyWebService] myServiceClient.myMethod("param") Any suggestions?
[+] Web Component Certification (OCEJWCD) » Passed OCEJWCD with 94% (Go to)		Joe San
Welcome to Javaranch and Congratulations on your certification!
[+] Web Component Certification (OCEJWCD) » I passed this exam with 91% (Go to)		Minh Hung Luyen
Congratulations!
[+] Cloud/Virtualization » Kubernetes Microservices with Docker (Go to)		Deepak Vohra
This is a perfect timing. We are containerising our Microservices with Docker as a first step. We want to add redundancy to all our Microservices as a next step. We are looking at all possibilities and this looks interesting thing to do with Kubernetes. So I have got a couple of questions: 1. Can I create a Master / Slave kind of an architecture with Kubernetes? Say I have Microservice A running as a Docker container. Can I have Kubernetes manage this as a Master and have 2 or 3 other instances as slaves? 2. If the Microservice A is exposing ports, how would this behave with rudundancy? Should I have multiple ports open?
[+] Web Services » SOAP Webservice - Call data in chunks (Go to)		Mike Nano
What you need to do is pagination. You cannot control what the Webservice delivers to you. You have to get all the messages in your backend, use some pagination techniques to render the content in your JSP!
[+] macOS » Mac Book Pro Not Logging in Anymore (Go to)		Joe San
Cool! I ended up getting a 2 bay Synology NAS with a 2 TB HDD to start with!
[+] macOS » iTerm Not Opening Multiple Tabs (Go to)		Joe San
So what I mean is, if I click Open All as you see in the screenshot, it opens up all the windows with the tabs. I want this layout to be the default when I click iTerm! On my old Mac this was possible. Now I have to right click on iTerm and say Open All! Have a look at this post: http://apple.stackexchange.com/questions/22445/how-can-i-save-tabs-in-iterm-2-so-they-restore-the-next-time-the-app-is-run
[+] macOS » iTerm Not Opening Multiple Tabs (Go to)		Joe San
Bear Bibeault wrote:Huh, I didn't know iTerm2 had this capability either. In fact, I can't even find a way to set it up. Where did you set this up? I could have provided you with a screenshot or a short video of my old Mac as I open iTerm. I will try to conjure up some time over the weekend to figure out how to recover my old HDD and then post a picture or a vide!
[+] macOS » iTerm Not Opening Multiple Tabs (Go to)		Joe San
Tim Moores wrote:I don't recall iTerm ever having had this functionality. You can use Profiles -> Open All to open all profiles you have set up. iTerm on my old Mac Yosemitte had this. When I open iTerm, it would open all the tabs in a single window! I could not get that set up now with El Kapitan!
[+] macOS » iTerm Not Opening Multiple Tabs (Go to)		Joe San
I have downloaded and installed iTerm 2 on El Capitan. I have created a couple of profiles that I would like to open when I start iTerm. But everytime I open iTerm, it would just open a single tab on my home folder like this:
[+] macOS » Mac Book Pro Not Logging in Anymore (Go to)		Joe San
Is there an alternative to Time Machine? I would like to backup only specific folders on my Mac using Time Machine. I can see that I can add exclusions. So let's say I have 10 folders folder1 to folder 10 and I want only folder 10 and everything inside folder 10 to be backed up, then I specify exclusion for all folders from folder 1 to folder 9?
[+] Scala » Scala String K-Reduction (Go to)		Joe San
The Scala forum at coderanch is pretty dormant. Recently, I came across a question that does k-reduction on Strings. I decided to give it a try in Scala and here is what I came up with: val input = "abccaaaba" // cccaaaba -> ccbaaba -> caaaba -> baaba -> caba -> bba -> bc -> a val distinctChars = input.distinct.sorted.toList @tailrec def reduceString(acc: List[Char], seq: List[Char]): List[Char] = seq match { case Nil => if (acc.toSet.size == 1) acc else reduceString(List.empty[Char], acc) case x :: Nil => reduceString(acc :+ x, List.empty[Char]) case x :: xs => if (x != xs.head) reduceString( acc, distinctChars.diff( Seq(x, xs.headOption.getOrElse(List.empty[Char])) ) ++ Option(xs.tail).getOrElse(List.empty[Char]) ) else reduceString(x :: acc, xs) } println(reduceString(List.empty[Char], input.toCharArray.toList)) What do you guys think? Could it be even simpler while at the same time readable? So what is String k-reduction? Given a string consisting of a,b and c's, we can perform the following operation: Take any two adjacent distinct characters and replace it with the third character. For example, if 'a' and 'c' are adjacent, they can replaced with 'b'. What is the smallest string which can result by applying this operation repeatedly
[+] macOS » Mac Book Pro Not Logging in Anymore (Go to)		Joe San
Could you recommend a reliable NAS device that I could use at home for my Mac, Windows PC? Both these machines are used at home and I might have photos and videos on both these devices. I liked the idea of NAS. So looking for some recommendations for a NAS device. I think this is what I'm going to do. Get a NAS device, try uploading the contents of my HDD to the NAS device and see if I could recover my contents.
[+] macOS » Mac Book Pro Not Logging in Anymore (Go to)		Joe San
Liutauras Vilda wrote: Joe Harry wrote:What would uploading data to an FTP server bring me? Joe Harry wrote:I have 3 years worth of images and videos that I'm afraid of loosing. Any suggestions? What I'm missing here Joe? Oh you are saying that I could recover my data by uploading it to an ftp server? That sounds cool! I will perhaps set up my new Mac and host an FTP server where I could upload to! Thanks for the suggestion. I will give it a try and post the results!
[+] Certification Results » PASSED OCEEJBD with 90% (Go to)		janith sandeep sandeep
Congratulations!
[+] macOS » Mac Book Pro Not Logging in Anymore (Go to)		Joe San
What would uploading data to an FTP server bring me?
[+] GNU/Linux » Include a File in bash profile (Go to)		Joe San
Ok! here is how I did it. 1. Create the respective profile file in my home directory - touch .work_profile 2. Include this in the .bash_profile - source ~/.work_profile
[+] GNU/Linux » Include a File in bash profile (Go to)		Joe San
I have a .bash_profile where I set my JAVA home and much more. I would now like to have another .profile file that I create as a custom one where I put all my work related profiles. I then want to include this profile file in my .bash_profile. How could I do it? I can of course add everything in my .bash_profile, but the resulting file will be huge to navigate around. So how could I include multiple profile files in my global .bash_profile?
[+] macOS » Mac Book Pro Not Logging in Anymore (Go to)		Joe San
My 13 inch Mac Book Pro non retina that I got in 2012 would not log in anymore. I got some repeated warnings that were showing as a pop up. I do not remember exactly what those warnings are. I wanted to get rid of them, so I tried to restart my machine. After restart, it would not log in or boot anymore. I see a gray screen with a stop sign. I'm not sure what went wrong. I tried to recover my HDD but all in vain. I ended up getting another Mac Book Pro, the non retina model as it was running cheaper and I could expand it like I did with my old Mac by adding more RAM and an SSD drive. Is there a way to recover the data in my HDD that is on my old Mac? I have 3 years worth of images and videos that I'm afraid of loosing. Any suggestions?
[+] Web Services Certification (OCEJWSD) » Passed the OCEJWSD with 80% (Go to)		Mikalai Zaikin
Welcome to Javaranch! Congratulations on your certification!
[+] Beginning Java » What is an "SDK for Java"? (Go to)		Knute Snortum
SDK stands for "Software Development Kit" and it means nothing more than just a library. You first need to have Java SDK installed on your machine. This Java SDK gives you the Java runtime which is the JVM (Java Virtual Machine) and the Java JDK (Java Development Kit) wich contains libraries to compile your Java programs. The Amazon SDK is just a library from Amazon that you can use to interface with Amazon services. In comparable terms, it is just like the Java JDK! If you are completely new to programming and you are interested to learn Java, I would recommend you the Head First Java book! Welcome to Javaranch!
[+] Certification Results » Passed Oracle EJB Certification with 93% marks. Thank you Java Ranch (Go to)		Mikalai Zaikin
Congratulations!
[+] Design » * Winners: Grokking Algorithms (Go to)		Joe San
Congratulation Winners! This seems to be an interesting book to win!
[+] Design » Grokking Algorithms: What language is used? (Go to)		K. Tsang
I had a look very briefly at the ToC and I was just wondering what programming language is used in the book?
[+] Architect Certification (OCMJEA) » Cleared OCMJEA 6! (Go to)		Mithun Ms
Congratulations!
[+] Certification Results » Passed OCAJP Java 8 (1Z0-808) with 98% (Go to)		Otto Zeimer
That's a great score. Congratulations!
[+] Java in General » OSGI alternative (Go to)		Stephan van Hulst
The alternative is not to use it! We have moved away from OSGi and our application suite is composed of a set of Microservices, containerised in Docker! We are now in the process of introducing some container management tool that would enable us to orchestrate Docker containers!
[+] MongoDB » * Winners: MongoDB in Action: Covers MongoDB version 3.0 (2nd Edition) (Go to)		Joe San
Congratulations Winners! Any book on Docker is great to win!
[+] Threads and Synchronization » Books recommendation for ExecutionContext (Go to)		Joe San
I'm bouncing back on my topic that I created over a year ago! Any suggestions?

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