key value - Page 924 - Developer IT

Increase Oracle RAC capability on IBM's Power Systems with 10GbEthernet

- by didier.wojciechowski

Oracle Corporation has published the certification of 10 Gigabit Ethernet available on IBM Power systems with AIX. This announcement demonstrates the continuing commitment of Oracle and IBM to enhance customer value through support of IBM Power and AIX technology.

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Google: Numbers favor Android over iPhone

<b>The Open Road:</b> "And according to Google VP Andy Rubin, the more the search giant blankets the industry with competing Android-droid based mobile handsets, the more likely Google is to hit its expected value of market dominance over Apple's iPhone."

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Increase Your Alexa Rank in 5 Tips

Alexa Rank is normally used for measuring the advertising cost in a blog via ad networks like Google AdSense, although Alexa Rank is not the perfect way to know the value of websites. Improving Alexa Rank means creating quality contents frequently.

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Stop trying to be perfect

- by Kyle Burns

Yes, Bob is my uncle too. I also think the points in the Manifesto for Software Craftsmanship (manifesto.softwarecraftsmanship.org) are all great. What amazes me is that tend to confuse the term “well crafted” with “perfect”. I'm about to say something that will make Quality Assurance managers and many development types as well until you think about it as a craftsman – “Stop trying to be perfect”. Now let me explain what I mean. Building software, as with building almost anything, often involves a series of trade-offs where either one undesired characteristic is accepted as necessary to achieve another desired one (or maybe stave off one that is even less desirable) or a desirable characteristic is sacrificed for the same reasons. This implies that perfection itself is unattainable. What is attainable is “sufficient” and I think that this really goes to the heart both of what people are trying to do with Agile and with the craftsmanship movement. Simply put, sufficient software drives the greatest business value. I've been in many meetings where “how can we keep anything from ever going wrong” has become the thing that holds us in analysis paralysis. I've also been the guy trying way too hard to perfect some function to make sure that every edge case is accounted for. Somewhere in there, something a drill instructor said while I was in boot camp occurred to me. In response to being asked a question by another recruit having to do with some edge case (I can barely remember the context), he said “What if grasshoppers had machine guns? Would the birds still **** with them?” It sounds funny, but there's a lot of wisdom in those words. “Sufficient” is different for every situation and it’s important to understand what sufficient means in the context of the work you’re doing. If I’m writing a timesheet application (and please shoot me if I am), I’m going to have a much higher tolerance for imperfection than if you’re writing software to control life support systems on spacecraft. I’m also likely to have less need for high volume performance than if you’re writing software to control stock trading transactions. I’d encourage anyone who has read this far to instead of trying to be perfect, try to create software that is sufficient in every way. If you’re working to make a component that is sufficient “better”, ask yourself if there is any component left that is not yet sufficient. If the answer is “yes” you’re working on the wrong thing and need to adjust. If the answer is “no”, why aren’t you shipping and delivering business value?

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Math > Logic for a Logarithmic Score Meter

- by oodavid

I'm trying to implement a score meter whereby I specify a maximum value (say 15,000) and I can render values on it in a logarithmic manner ie: +------+---+--+-++ +------+---+--+-++ |== | |====== | +------+---+--+-++ +------+---+--+-++ 200 pts 1,000 pts +------+---+--+-++ +------+---+--+-++ |============= | |================| +------+---+--+-++ +------+---+--+-++ 5,000 pts 15,000 pts + The upper bound needs to be variable, and need to be able to convert a score to a percentage, using the above mockup as an example: score2pct(15000, 200) = 0.2 score2pct(15000, 1000) = 0.4 score2pct(15000, 5000) = 0.8 score2pct(15000, 15000) = 1 Does anyone have any pointers for me?

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WIF, ADFS 2 and WCF–Part 2: The Service

- by Your DisplayName here!

OK – so let’s first start with a simple WCF service and connect that to ADFS 2 for authentication. The service itself simply echoes back the user’s claims – just so we can make sure it actually works and to see how the ADFS 2 issuance rules emit claims for the service: [ServiceContract(Namespace = "urn:leastprivilege:samples")] public interface IService { [OperationContract] List<ViewClaim> GetClaims(); } public class Service : IService { public List<ViewClaim> GetClaims() { var id = Thread.CurrentPrincipal.Identity as IClaimsIdentity; return (from c in id.Claims select new ViewClaim { ClaimType = c.ClaimType, Value = c.Value, Issuer = c.Issuer, OriginalIssuer = c.OriginalIssuer }).ToList(); } } The ViewClaim data contract is simply a DTO that holds the claim information. Next is the WCF configuration – let’s have a look step by step. First I mapped all my http based services to the federation binding. This is achieved by using .NET 4.0’s protocol mapping feature (this can be also done the 3.x way – but in that scenario all services will be federated): <protocolMapping> <add scheme="http" binding="ws2007FederationHttpBinding" /> </protocolMapping> Next, I provide a standard configuration for the federation binding: <bindings> <ws2007FederationHttpBinding> <binding> <security mode="TransportWithMessageCredential"> <message establishSecurityContext="false"> <issuerMetadata address="https://server/adfs/services/trust/mex" /> </message> </security> </binding> </ws2007FederationHttpBinding> </bindings> This binding points to our ADFS 2 installation metadata endpoint. This is all that is needed for svcutil (aka “Add Service Reference”) to generate the required client configuration. I also chose mixed mode security (SSL + basic message credential) for best performance. This binding also disables session – you can control that via the establishSecurityContext setting on the binding. This has its pros and cons. Something for a separate blog post, I guess. Next, the behavior section adds support for metadata and WIF: <behaviors> <serviceBehaviors> <behavior> <serviceMetadata httpsGetEnabled="true" /> <federatedServiceHostConfiguration /> </behavior> </serviceBehaviors> </behaviors> The next step is to add the WIF specific configuration (in <microsoft.identityModel />). First we need to specify the key material that we will use to decrypt the incoming tokens. This is optional for web applications but for web services you need to protect the proof key – so this is mandatory (at least for symmetric proof keys, which is the default): <serviceCertificate> <certificateReference storeLocation="LocalMachine" storeName="My" x509FindType="FindBySubjectDistinguishedName" findValue="CN=Service" /> </serviceCertificate> You also have to specify which incoming tokens you trust. This is accomplished by registering the thumbprint of the signing keys you want to accept. You get this information from the signing certificate configured in ADFS 2: <issuerNameRegistry type="...ConfigurationBasedIssuerNameRegistry"> <trustedIssuers> <add thumbprint="d1 … db" name="ADFS" /> </trustedIssuers> </issuerNameRegistry> The last step (promised) is to add the allowed audience URIs to the configuration – WCF clients use (by default – and we’ll come back to this) the endpoint address of the service: <audienceUris> <add value="https://machine/soapadfs/service.svc" /> </audienceUris> OK – that’s it – now we have a basic WCF service that uses ADFS 2 for authentication. The next step will be to set-up ADFS to issue tokens for this service. Afterwards we can explore various options on how to use this service from a client. Stay tuned… (if you want to have a look at the full source code or peek at the upcoming parts – you can download the complete solution here)

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SQL Server 2008 R2 Reporting Services: A generic error occurred in GDI+

- by Greg Low

While building some maps today in SQL Server 2008 R2 Reporting Services, I kept coming up with an error that said: A generic error occurred in GDI+ I was struggling to think what I'd done wrong. After much nashing of teeth and removal of hair, I finally worked out what the error was. When I got to the "Choose Color Scheme and Visualization" page of the map wizard for building a color analytical map, I hadn't picked the correct value for the "Field to Visualize" drop-down. I'm guessing that because...(read more)

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how to install monitorx in ubuntu 11.10 amd64

- by blade19899

I followed a tutorial at unixmen on how to install monitorx in ubuntu i installed the dependencies and downloaded the monitorix_2.5.0-izzy1_all.deb deb package but when i try to install it i get this error google transtaler (i have a dutch Ubuntu and so was the error message) dpkg: error processing monitorix_2.5.0-izzy1_all.deb (- install): parsing file '/ var / lib / dpkg / tmp.ci / control' near line 14 package 'monitorix': blank line in the value of field 'Description' Errors were encountered while processing: monitorix_2.5.0-izzy1_all.deb my question is how to get monitorx up and running in Ubuntu 11.10 amd64

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Meet This Year's Most Impressive WebCenter Customer Projects

- by Michael Snow

12.00 Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-family:"Calibri","sans-serif"; mso-ascii- mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi- mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} w\:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} 12.00 Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-family:"Calibri","sans-serif"; mso-bidi-font-family:"Times New Roman";} Oracle Fusion Middleware: Meet This Year's Most Impressive Customer Projects Oracle OpenWorld Session – Tuesday Oct. 2, 2012: Moscone West, Room 3001 at 11:45AM This year – the Oracle Excellence awards had an amazing number of nominations. Each group at Oracle had a challenge to select the most innovative and game-changing nominations for their winners. The Fusion Middleware Innovation Awards, jointly sponsored by Oracle, OAUG, QUEST, ODTUG, IOUG, AUSOUG and UKOUG, honor organizations using Oracle Fusion Middleware to deliver unique business value. This year, the awards will recognize customers across eight distinct categories: Oracle Exalogic Cloud Application Foundation Service Integration (SOA) and BPM WebCenter Identity Management Data Integration Application Development Framework and Fusion Development Business Analytics (BI, EPM and Exalytics) The nominations included the pioneers in our customer base using these solutions in innovative ways to achieve significant business value. Tune in this afternoon for a listing of the WebCenter winners.

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Stuff I learned at Innovate 2011

- by David Dorf

After returning from the NRF Innovate 2011 conference, I picked up few nuggets I thought I'd share here. These thoughts are a bit random, but I hope they're useful nonetheless.Kevin Kelly opened the conference with six verbs that represent the future. They were Screening, Interacting, Sharing, Accessing, Flowing, and Generating. It struck me that these are all ways in which we merge the digital and physical worlds. The internet of things continues to gain momentum.Some buzzwords: deal economy, subscription commerce, discovery (instead of search), curationThat last one, curation, came up over and over. Retailers, especially those in fashion, are finding value in helping their customers organize and present their own collections. Social media has made sharing such collections easy, and mobile lets them take those ideas into the stores. Mannequins are becoming less relevant.I heard from both HauteLook and Gilt Groupe (flash sale retailers) that a large percentage of their visits come from mobile devices, and most of those are iOS devices. I find it interesting that even though Android has passed iPhone in units shipped (and will eventually pass iOS as a whole), its still the Apple crowd that leads the way.RadioShack mentioned their Holiday Heroes campaigned was very successful. They asked their Foursquare users to check-in at a gym, coffee shop, and transportation hub as part of being a hero. For this feat, customers were awarded a special badge that was worth 20% off at their next store visit. They claim a 3.5x increase in ticket size vs. regular check-in customers, and a 5x increase vs those that don't check-in at all.I also learned of RadioShack's #28 campaign, which is apparently one of the largest Twitter trends ever. Their partnership with LIVESTRONG has gotten them followers, impressions, and credit for supporting the fight against cancer.The guys at Invodo showed the importance of video to e-commerce. They gave compelling examples of how video can show customers the value of products better than just words.The highlight of the show was Guy Kawasaki's talk on innovation, which was not only informative but also peppered with humor and personality. Back in the early days of the internet boom, Guy turned down the CEO position at Yahoo! because the commute was too long. By his calculation, that was a $2B mistake.There are other good accounts of the conference at the NRF Blog.

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OIM 11g : Multi-thread approach for writing custom scheduled job

- by Saravanan V S

In this post I have shared my experience of designing and developing an OIM schedule job that uses multi threaded approach for updating data in OIM using APIs. I have used thread pool (in particular fixed thread pool) pattern in developing the OIM schedule job. The thread pooling pattern has noted advantages compared to thread per task approach. I have listed few of the advantage here · Threads are reused · Creation and tear-down cost of thread is reduced · Task execution latency is reduced · Improved performance · Controlled and efficient management of memory and resources used by threads More about java thread pool http://docs.oracle.com/javase/tutorial/essential/concurrency/pools.html The following diagram depicts the high-level architectural diagram of the schedule job that process input from a flat file to update OIM process form data using fixed thread pool approach The custom scheduled job shared in this post is developed to meet following requirement 1) Need to process a CSV extract that contains identity, account identifying key and list of data to be updated on an existing OIM resource account. 2) CSV file can contain data for multiple resources configured in OIM 3) List of attribute to update and mapping between CSV column to OIM fields may vary between resources The following are three Java class developed for this requirement (I have given only prototype of the code that explains how to use thread pools in schedule task) CustomScheduler.java - Implementation of TaskSupport class that reads and passes the parameters configured on the schedule job to Thread Executor class. package com.oracle.oim.scheduler; import java.util.HashMap; import com.oracle.oim.bo.MultiThreadDataRecon; import oracle.iam.scheduler.vo.TaskSupport; public class CustomScheduler extends TaskSupport { public void execute(HashMap options) throws Exception { /* Read Schedule Job Parameters */ String param1 = (String) options.get(“Parameter1”); . int noOfThread = (int) options.get(“No of Threads”); . String paramn = (int) options.get(“ParamterN”); /* Provide all the required input configured on schedule job to Thread Pool Executor implementation class like 1) Name of the file, 2) Delimiter 3) Header Row Numer 4) Line Escape character 5) Config and resource map lookup 6) No the thread to create */ new MultiThreadDataRecon(all_required_parameters, noOfThreads).reconcile(); } public HashMap getAttributes() { return null; } public void setAttributes() { } } MultiThreadDataRecon.java – Helper class that reads data from input file, initialize the thread executor and builds the task queue. package com.oracle.oim.bo; import <required file IO classes>; import <required java.util classes>; import <required OIM API classes>; import <csv reader api>; public class MultiThreadDataRecon { private int noOfThreads; private ExecutorService threadExecutor = null; public MetaDataRecon(<required params>, int noOfThreads) { //Store parameters locally . . this.noOfThread = noOfThread; } /** * Initialize */ private void init() throws Exception { try { // Initialize CSV file reader API objects // Initialize OIM API objects /* Initialize Fixed Thread Pool Executor class if no of threads configured is more than 1 */ if (noOfThreads > 1) { threadExecutor = Executors.newFixedThreadPool(noOfThreads); } else { threadExecutor = Executors.newSingleThreadExecutor(); } /* Initialize TaskProcess clas s which will be executing task from the Queue */ TaskProcessor.initializeConfig(params); } catch (***Exception e) { // TO DO } } /** * Method to reconcile data from CSV to OIM */ public void reconcile() throws Exception { try { init(); while(<csv file has line>){ processRow(line); } /* Initiate thread shutdown */ threadExecutor.shutdown(); while (!threadExecutor.isTerminated()) { // Wait for all task to complete. } } catch (Exception e) { // TO DO } finally { try { //Close all the file handles } catch (IOException e) { //TO DO } } } /** * Method to process */ private void processRow(String row) { // Create task processor instance with the row data // Following code push the task to work queue and wait for next available thread to execute threadExecutor.execute(new TaskProcessor(rowData)); } } TaskProcessor.java – Implementation of “Runnable” interface that executes the required business logic to update data in OIM. package com.oracle.oim.bo; import <required APIs> class TaskProcessor implements Runnable { //Initialize required member variables /** * Constructor */ public TaskProcessor(<row data>) { // Initialize and parse csv row } /* * Method to initialize required object for task execution */ public static void initializeConfig(<params>) { // Process param and initialize the required configs and object } /* * (non-Javadoc) * * @see java.lang.Runnable#run() */ public void run() { if (<is csv data valid>){ processData(); } } /** * Process the the received CSV input */ private void processData() { try{ //Find the user in OIM using the identity matching key value from CSV // Find the account to be update from user’s account based on account identifying key on CSV // Update the account with data from CSV }catch(***Exception e){ //TO DO } } }

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What different ways are there to model restitution in a physics engine?

- by Mikael Högström

In my physics engine I give a body a value for restitution between 0 and 1. When two bodies collide there seems to be different views on how the restitution of the collision should be calculated. To me the most intuitive seems to be to take the average of the two but some seem to take only the largest one. Are there other ways to do it? Also, could the closing velocity or some other parameter come into effect?

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John Hitchcock of Pace Describes the Oracle Agile PLM Customer Experience

John Hitchcock, Senior Manager of Configuration Management at Pace (formerly 2Wire, Inc.), sat down for an interview during Oracle's Innovation Summit with Kerrie Foy, Manager of PLM Product Marketing at Oracle. Learn why his organization upgraded to the latest version of Agile and expanded the footprint to achieve impressive savings and productivity gains across the global, networked product value-chain.

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Beware of Link Pedlars Bearing Gifts!

As more organisations become aware of the value of links the number of links pedlars is increasing. On the face of it these people offer an easy, if sometimes expensive, way to improve your website's performance in the search engines.

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Design Patterns for Coordinating Change Event Listeners

- by mkraken

I've been working with the Observer pattern in JavaScript using various popular libraries for a number of years (YUI & jQuery). It's often that I need to observe a set of property value changes (e.g. respond only when 2 or more specific values change). Is there a elegant way to 'subscribe' the handler so that it is only called one time? Is there something I'm missing or doing wrong in my design?

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Linkedin recommendations, useful? [closed]

- by scottyab

Linkedin has been around a few years now and while not everyone is keen on it. Chatting to a few people they viewed Linkedin recommendations as mutual back starching where poor candidates can recommend each other and and provide little value. I take a honest approach when recommending colleagues, trying to note specifics that person has performed well at and don't recommend colleagues on linkedin who wouldn't recommend in real life. What regard do people hold the Linkedin recommendations? would it effect your hiring decision?

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creating a color coded time chart using colorbar and colormaps in python

- by Rusty

I'm trying to make a time tracking chart based on a daily time tracking file that I used. I wrote code that crawls through my files and generates a few lists. endTimes is a list of times that a particular activity ends in minutes going from 0 at midnight the first day of the month to however many minutes are in a month. labels is a list of labels for the times listed in endTimes. It is one shorter than endtimes since the trackers don't have any data about before 0 minute. Most labels are repeats. categories contains every unique value of labels in order of how well I regard that time. I want to create a colorbar or a stack of colorbars (1 for eachday) that will depict how I spend my time for a month and put a color associated with each label. Each value in categories will have a color associated. More blue for more good. More red for more bad. It is already in order for the jet colormap to be right, but I need to get desecrate color values evenly spaced out for each value in categories. Then I figure the next step would be to convert that to a listed colormap to use for the colorbar based on how the labels associated with the categories. I think this is the right way to do it, but I am not sure. I am not sure how to associate the labels with color values. Here is the last part of my code so far. I found one function to make a discrete colormaps. It does, but it isn't what I am looking for and I am not sure what is happening. Thanks for the help! # now I need to develop the graph import numpy as np from matplotlib import pyplot,mpl import matplotlib from scipy import interpolate from scipy import * def contains(thelist,name): # checks if the current list of categories contains the one just read for val in thelist: if val == name: return True return False def getCategories(lastFile): ''' must determine the colors to use I would like to make a gradient so that the better the task, the closer to blue bad labels will recieve colors closer to blue read the last file given for the information on how I feel the order should be then just keep them in the order of how good they are in the tracker use a color range and develop discrete values for each category by evenly spacing them out any time not found should assume to be sleep sleep should be white ''' tracker = open(lastFile+'.txt') # open the last file # find all the categories categories = [] for line in tracker: pos = line.find(':') # does it have a : or a ? if pos==-1: pos=line.find('?') if pos != -1: # ignore if no : or ? name = line[0:pos].strip() # split at the : or ? if contains(categories,name)==False: # if the category is new categories.append(name) # make a new one return categories # find good values in order of last day newlabels=[] for val in getCategories(lastDay): if contains(labels,val): newlabels.append(val) categories=newlabels # convert discrete colormap to listed colormap python for ii,val in enumerate(labels): if contains(categories,val)==False: labels[ii]='sleep' # create a figure fig = pyplot.figure() axes = [] for x in range(endTimes[-1]%(24*60)): ax = fig.add_axes([0.05, 0.65, 0.9, 0.15]) axes.append(ax) # figure out the colors to use # stole this function to make a discrete colormap # http://www.scipy.org/Cookbook/Matplotlib/ColormapTransformations def cmap_discretize(cmap, N): """Return a discrete colormap from the continuous colormap cmap. cmap: colormap instance, eg. cm.jet. N: Number of colors. Example x = resize(arange(100), (5,100)) djet = cmap_discretize(cm.jet, 5) imshow(x, cmap=djet) """ cdict = cmap._segmentdata.copy() # N colors colors_i = np.linspace(0,1.,N) # N+1 indices indices = np.linspace(0,1.,N+1) for key in ('red','green','blue'): # Find the N colors D = np.array(cdict[key]) I = interpolate.interp1d(D[:,0], D[:,1]) colors = I(colors_i) # Place these colors at the correct indices. A = zeros((N+1,3), float) A[:,0] = indices A[1:,1] = colors A[:-1,2] = colors # Create a tuple for the dictionary. L = [] for l in A: L.append(tuple(l)) cdict[key] = tuple(L) # Return colormap object. return matplotlib.colors.LinearSegmentedColormap('colormap',cdict,1024) # jet colormap goes from blue to red (good to bad) cmap = cmap_discretize(mpl.cm.jet, len(categories)) cmap.set_over('0.25') cmap.set_under('0.75') #norm = mpl.colors.Normalize(endTimes,cmap.N) print endTimes print labels # make a color list by matching labels to a picture #norm = mpl.colors.ListedColormap(colorList) cb1 = mpl.colorbar.ColorbarBase(axes[0],cmap=cmap ,orientation='horizontal' ,boundaries=endTimes ,ticks=endTimes ,spacing='proportional') pyplot.show()

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How do you track display impressions in Google Analytics on non Google networks?

- by dee

Google Analytics has a Multi-Channel funnel analysis feature that we’d like to use to understand assisted conversions and how each channel has impacted on conversion beyond just last interaction attribution. My current understanding is that the impression tracking part of this feature works really well when playing within Google’s search and display networks. Outside of Google’s network I suspect that impression tracking will no longer “just work” and feed back into GA appropriately. What our options are for tracking display impressions on other advertising networks so that we can be attributing value correctly with GA?

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What if I can't make my unit test fail in "Red, Green, Refactor" of TDD?

- by Joshua Harris

So let's say that I have a test: @Test public void MoveY_MoveZero_DoesNotMove() { Point p = new Point(50.0, 50.0); p.MoveY(0.0); Assert.assertAreEqual(50.0, p.Y); } This test then causes me to create the class Point: public class Point { double X; double Y; public void MoveY(double yDisplace) { throw new NotYetImplementedException(); } } Ok. It fails. Good. Then I remove the exception and I get green. Great, but of course I need to test if it changes value. So I write a test that calls p.MoveY(10.0) and checks if p.Y is equal to 60.0. It fails, so then I change the function to look like so: public void MoveY(double yDisplace) { Y += yDisplace; } Great, now I have green again and I can move on. I've tested not moving and moving in the positive direction, so naturally I should test a negative value. The only problem with this test is that if I wrote the test correctly, then it doesn't fail at first. That means that I didn't fit the principle of "Red, Green, Refactor." Of course, This is a first-world problem of TDD, but getting a fail at first is helpful in that it shows that your test can fail. Otherwise this seemingly innocent test that is just passing for incorrect reasons could fail later because it was written wrong. That might not be a problem if it happened 5 minutes later, but what if it happens to the poor-sap that inheirited your code two years later. What he knows is that MoveY does not work with negative values because that is what the test is telling him. But, it really could work and just be a bug in the test. I don't think that would happen in this particular case because the code sample is so simple, but if it were a large complicated system that might not be the case. It seems crazy to say that I want to fail my tests, but that is an important step in TDD, for good reasons.

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BI Applications overview

- by sv744

Welcome to Oracle BI applications blog! This blog will talk about various features, general roadmap, description of functionality and implementation steps related to Oracle BI applications. In the first post we start with an overview of the BI apps and will delve deeper into some of the topics below in the upcoming weeks and months. If there are other topics you would like us to talk about, pl feel free to provide feedback on that. The Oracle BI applications are a set of pre-built applications that enable pervasive BI by providing role-based insight for each functional area, including sales, service, marketing, contact center, finance, supplier/supply chain, HR/workforce, and executive management. For example, Sales Analytics includes role-based applications for sales executives, sales management, as well as front-line sales reps, each of whom have different needs. The applications integrate and transform data from a range of enterprise sources—including Siebel, Oracle, PeopleSoft, SAP, and others—into actionable intelligence for each business function and user role. This blog starts with the key benefits and characteristics of Oracle BI applications. In a series of subsequent blogs, each of these points will be explained in detail. Why BI apps? Demonstrate the value of BI to a business user, show reports / dashboards / model that can answer their business questions as part of the sales cycle. Demonstrate technical feasibility of BI project and significantly lower risk and improve success Build Vs Buy benefit Don’t have to start with a blank sheet of paper. Help consolidate disparate systems Data integration in M&A situations Insulate BI consumers from changes in the OLTP Present OLTP data and highlight issues of poor data / missing data – and improve data quality and accuracy Prebuilt Integrations BI apps support prebuilt integrations against leading ERP sources: Fusion Applications, E- Business Suite, Peoplesoft, JD Edwards, Siebel, SAP Co-developed with inputs from functional experts in BI and Applications teams. Out of the box dimensional model to source model mappings Multi source and Multi Instance support Rich Data Model BI apps have a very rich dimensionsal data model built over 10 years that incorporates best practises from BI modeling perspective as well as reflect the source system complexities Thanks for reading a long post, and be on the lookout for future posts. We will look forward to your valuable feedback on these topics as well as suggestions on what other topics would you like us to cover. I Conformed dimensional model across all business subject areas allows cross functional reporting, e.g. customer / supplier 360 Over 360 fact tables across 7 product areas CRM – 145, SCM – 47, Financials – 28, Procurement – 20, HCM – 27, Projects – 18, Campus Solutions – 21, PLM - 56 Supported by 300 physical dimensions Support for extensive calendars; Gregorian, enterprise and ledger based Conformed data model and metrics for real time vs warehouse based reporting Multi-tenant enabled Extensive BI related transformations BI apps ETL and data integration support various transformations required for dimensional models and reporting requirements. All these have been distilled into common patterns and abstracted logic which can be readily reused across different modules Slowly Changing Dimension support Hierarchy flattening support Row / Column Hybrid Hierarchy Flattening As Is vs. As Was hierarchy support Currency Conversion :- Support for 3 corporate, CRM, ledger and transaction currencies UOM conversion Internationalization / Localization Dynamic Data translations Code standardization (Domains) Historical Snapshots Cycle and process lifecycle computations Balance Facts Equalization of GL accounting chartfields/segments Standardized values for categorizing GL accounts Reconciliation between GL and subledgers to track accounted/transferred/posted transactions to GL Materialization of data only available through costly and complex APIs e.g. Fusion Payroll, EBS / Fusion Accruals Complex event Interpretation of source data – E.g. o What constitutes a transfer o Deriving supervisors via position hierarchy o Deriving primary assignment in PSFT o Categorizing and transposition to measures of Payroll Balances to specific metrics to support side by side comparison of measures of for example Fixed Salary, Variable Salary, Tax, Bonus, Overtime Payments. o Counting of Events – E.g. converting events to fact counters so that for example the number of hires can easily be added up and compared alongside the total transfers and terminations. Multi pass processing of multiple sources e.g. headcount, salary, promotion, performance to allow side to side comparison. Adding value to data to aid analysis through banding, additional domain classifications and groupings to allow higher level analytical reporting and data discovery Calculation of complex measures examples: o COGs, DSO, DPO, Inventory turns etc o Transfers within a Hierarchy or out of / into a hierarchy relative to view point in hierarchy. Configurability and Extensibility support BI apps offer support for extensibility for various entities as automated extensibility or part of extension methodology Key Flex fields and Descriptive Flex support Extensible attribute support (JDE) Conformed Domains ETL Architecture BI apps offer a modular adapter architecture which allows support of multiple product lines into a single conformed model Multi Source Multi Technology Orchestration – creates load plan taking into account task dependencies and customers deployment to generate a plan based on a customers of multiple complex etl tasks Plan optimization allowing parallel ETL tasks Oracle: Bit map indexes and partition management High availability support Follow the sun support. TCO BI apps support several utilities / capabilities that help with overall total cost of ownership and ensure a rapid implementation Improved cost of ownership – lower cost to deploy On-going support for new versions of the source application Task based setups flows Data Lineage Functional setup performed in Web UI by Functional person Configuration Test to Production support Security BI apps support both data and object security enabling implementations to quickly configure the application as per the reporting security needs Fine grain object security at report / dashboard and presentation catalog level Data Security integration with source systems Extensible to support external data security rules Extensive Set of KPIs Over 7000 base and derived metrics across all modules Time series calculations (YoY, % growth etc) Common Currency and UOM reporting Cross subject area KPIs (analyzing HR vs GL data, drill from GL to AP/AR, etc) Prebuilt reports and dashboards 3000+ prebuilt reports supporting a large number of industries Hundreds of role based dashboards Dynamic currency conversion at dashboard level Highly tuned Performance The BI apps have been tuned over the years for both a very performant ETL and dashboard performance. The applications use best practises and advanced database features to enable the best possible performance. Optimized data model for BI and analytic queries Prebuilt aggregates& the ability for customers to create their own aggregates easily on warehouse facts allows for scalable end user performance Incremental extracts and loads Incremental Aggregate build Automatic table index and statistics management Parallel ETL loads Source system deletes handling Low latency extract with Golden Gate Micro ETL support Bitmap Indexes Partitioning support Modularized deployment, start small and add other subject areas seamlessly Source Specfic Staging and Real Time Schema Support for source specific operational reporting schema for EBS, PSFT, Siebel and JDE Application Integrations The BI apps also allow for integration with source systems as well as other applications that provide value add through BI and enable BI consumption during operational decision making Embedded dashboards for Fusion, EBS and Siebel applications Action Link support Marketing Segmentation Sales Predictor Dashboard Territory Management External Integrations The BI apps data integration choices include support for loading extenral data External data enrichment choices : UNSPSC, Item class etc. Extensible Spend Classification Broad Deployment Choices Exalytics support Databases : Oracle, Exadata, Teradata, DB2, MSSQL ETL tool of choice : ODI (coming), Informatica Extensible and Customizable Extensible architecture and Methodology to add custom and external content Upgradable across releases

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Change alpha to a Frame in libgdx

- by Rudy_TM

I have this batch.draw(currentFrame, x, y, this.parent.originX, this.parent.originY, this.parent.width, this.parent.height, this.scaleX, this.scaleY,this.rotation); I want to apply the alpha that it gets from the method, but theres is not overload from the SpriteBatch class that takes the alpha value, is there some wey to apply it? (i did it this way, because this are animation, and i wanted to control them) in my static ones i apply sprite.draw(SpriteBatch, alpha) Thanks

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Offshore Outsourcing Company in India

Offshore outsourcing services in India are today looked upon as a value enhancer that helps organizations to prune their operations at a low cost vantage. Big companies outsource their software appli... [Author: John Anthony - Web Design and Development - June 17, 2010]

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Why enumerator structs are a really bad idea (redux)

- by Simon Cooper

My previous blog post went into some detail as to why calling MoveNext on a BCL generic collection enumerator didn't quite do what you thought it would. This post covers the Reset method. To recap, here's the simple wrapper around a linked list enumerator struct from my previous post (minus the readonly on the enumerator variable): sealed class EnumeratorWrapper : IEnumerator<int> { private LinkedList<int>.Enumerator m_Enumerator; public EnumeratorWrapper(LinkedList<int> linkedList) { m_Enumerator = linkedList.GetEnumerator(); } public int Current { get { return m_Enumerator.Current; } } object System.Collections.IEnumerator.Current { get { return Current; } } public bool MoveNext() { return m_Enumerator.MoveNext(); } public void Reset() { ((System.Collections.IEnumerator)m_Enumerator).Reset(); } public void Dispose() { m_Enumerator.Dispose(); } } If you have a look at the Reset method, you'll notice I'm having to cast to IEnumerator to be able to call Reset on m_Enumerator. This is because the implementation of LinkedList<int>.Enumerator.Reset, and indeed of all the other Reset methods on the BCL generic collection enumerators, is an explicit interface implementation. However, IEnumerator is a reference type. LinkedList<int>.Enumerator is a value type. That means, in order to call the reset method at all, the enumerator has to be boxed. And the IL confirms this: .method public hidebysig newslot virtual final instance void Reset() cil managed { .maxstack 8 L_0000: nop L_0001: ldarg.0 L_0002: ldfld valuetype [System]System.Collections.Generic.LinkedList`1/Enumerator<int32> EnumeratorWrapper::m_Enumerator L_0007: box [System]System.Collections.Generic.LinkedList`1/Enumerator<int32> L_000c: callvirt instance void [mscorlib]System.Collections.IEnumerator::Reset() L_0011: nop L_0012: ret } On line 0007, we're doing a box operation, which copies the enumerator to a reference object on the heap, then on line 000c calling Reset on this boxed object. So m_Enumerator in the wrapper class is not modified by the call the Reset. And this is the only way to call the Reset method on this variable (without using reflection). Therefore, the only way that the collection enumerator struct can be used safely is to store them as a boxed IEnumerator<T>, and not use them as value types at all.

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Procedurally generated 2d terrain for side scroller on Sega Genesis hardware?

- by DJCouchyCouch

I'm working on the Sega Genesis that has a 8mhz Motorola 68000 CPU. Any ideas on how to generate fast and decent 2d tile terrain for a side scroller in real time? The game would generate new columns or rows depending on the direction the player is scrolling in. The generation would have to be deterministic. The same seed value would generate the same terrain. I'm looking for algorithms that would satisfy the memory and CPU constraints of the hardware.

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How to remove the boundary effects arising due to zero padding in scipy/numpy fft?

- by Omkar

I have made a python code to smoothen a given signal using the Weierstrass transform, which is basically the convolution of a normalised gaussian with a signal. The code is as follows: #Importing relevant libraries from __future__ import division from scipy.signal import fftconvolve import numpy as np def smooth_func(sig, x, t= 0.002): N = len(x) x1 = x[-1] x0 = x[0] # defining a new array y which is symmetric around zero, to make the gaussian symmetric. y = np.linspace(-(x1-x0)/2, (x1-x0)/2, N) #gaussian centered around zero. gaus = np.exp(-y**(2)/t) #using fftconvolve to speed up the convolution; gaus.sum() is the normalization constant. return fftconvolve(sig, gaus/gaus.sum(), mode='same') If I run this code for say a step function, it smoothens the corner, but at the boundary it interprets another corner and smoothens that too, as a result giving unnecessary behaviour at the boundary. I explain this with a figure shown in the link below. Boundary effects This problem does not arise if we directly integrate to find convolution. Hence the problem is not in Weierstrass transform, and hence the problem is in the fftconvolve function of scipy. To understand why this problem arises we first need to understand the working of fftconvolve in scipy. The fftconvolve function basically uses the convolution theorem to speed up the computation. In short it says: convolution(int1,int2)=ifft(fft(int1)*fft(int2)) If we directly apply this theorem we dont get the desired result. To get the desired result we need to take the fft on a array double the size of max(int1,int2). But this leads to the undesired boundary effects. This is because in the fft code, if size(int) is greater than the size(over which to take fft) it zero pads the input and then takes the fft. This zero padding is exactly what is responsible for the undesired boundary effects. Can you suggest a way to remove this boundary effects? I have tried to remove it by a simple trick. After smoothening the function I am compairing the value of the smoothened signal with the original signal near the boundaries and if they dont match I replace the value of the smoothened func with the input signal at that point. It is as follows: i = 0 eps=1e-3 while abs(smooth[i]-sig[i])> eps: #compairing the signals on the left boundary smooth[i] = sig[i] i = i + 1 j = -1 while abs(smooth[j]-sig[j])> eps: # compairing on the right boundary. smooth[j] = sig[j] j = j - 1 There is a problem with this method, because of using an epsilon there are small jumps in the smoothened function, as shown below: jumps in the smooth func Can there be any changes made in the above method to solve this boundary problem?

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