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• All day optimizer event....

  - by noreply(at)blogger.com (Thomas Kyte)

  I've recently taken over some of the responsibilities of Maria Colgan (also known as the "optimizer lady") so she can move onto supporting our new In Memory Database features (note her new twitter handle for that: https://twitter.com/db_inmemory ).To that end, I have two one day Optimizer classes scheduled this year (and more to follow next year!).  The first one will be Wednesday November 20th in Northern California.  You can find details for that here: http://www.nocoug.org/ .The next one will be 5,500 miles (about 8,800 km) away in the UK - in Manchester.  That'll take place immediately following the UKOUG technical conference taking place the first week of December on December 5th.  You can see all of the details for that here: http://www.ukoug.org/events/tom-kyte-seminar-2013/I know I'll be doing one in Belgrade early next year, probably the first week in April. Stay tuned for details on that and for more to come.

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• Responding to the page unload in a managed bean

  - by frank.nimphius

  Though ADF Faces provides an uncommitted data warning functionality, developers may have the requirement to respond to the page unload event within custom application code, programmed in a managed bean. The af:clientListener tag that is used in ADF Faces to listen for JavaScript and ADF Faces client component events does not provide the option to listen for the unload event. So this often recommended way of implementing JavaScript in ADF Faces does not work for this use case. To send an event from JavaScript to the server, ADF Faces provides the af:serverListener tag that you use to queue a CustomEvent that invokes method in a managed bean. While this is part of the solution, during testing, it turns out, the browser native JavaScript unload event itself is not very helpful to send an event to the server using the af:serverListener tag. The reason for this is that when the unload event fires, the page already has been unloaded and the ADF Faces AdfPage object needed to queue the custom event already returns null. So the solution to the unload page event handling is the unbeforeunload event, which I am not sure if all browsers support them. I tested IE and FF and obviously they do though. To register the beforeunload event, you use an advanced JavaScript programming technique that dynamically adds listeners to page events. <af:document id="d1" onunload="performUnloadEvent"                      clientComponent="true"> <af:resource type="javascript">   window.addEventListener('beforeunload',                            function (){performUnloadEvent()},false)      function performUnloadEvent(){   //note that af:document must have clientComponent="true" set   //for JavaScript to access the component object   var eventSource = AdfPage.PAGE.findComponentByAbsoluteId('d1');   //var x and y are dummy variables obviously needed to keep the page   //alive for as long it takes to send the custom event to the server   var x = AdfCustomEvent.queue(eventSource,                                "handleOnUnload",                                {args:'noargs'},false);   //replace args:'noargs' with key:value pairs if your event needs to   //pass arguments and values to the server side managed bean.   var y = 0; } </af:resource> <af:serverListener type="handleOnUnload"                    method="#{UnloadHandler.onUnloadHandler}"/> // rest of the page goes here … </af:document> The managed bean method called by the custom event has the following signature:  public void onUnloadHandler(ClientEvent clientEvent) {  } I don't really have a good explanation for why the JavaSCript variables "x" and "y" are needed, but this is how I got it working. To me it ones again shows how fragile custom JavaScript development is and why you should stay away from using it whenever possible. Note: If the unload event is produced through navigation in JavaServer Faces, then there is no need to use JavaScript for this. If you know that navigation is performed from one page to the next, then the action you want to perform can be handled in JSF directly in the context of the lifecycle.

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• OWB 11gR2 &ndash; Parallel DML and Query

  - by David Allan

  A quick post illustrating conventional (non direct path) parallel inserts and query using OWB following on from some recent posts from Jean-Pierre and Randolf on this topic. The mapping configuration properties is where you can define these hints in OWB, taking JP’s simplistic illustration, the parallel query hints in OWB are defined on the ‘Extraction hint’ property for the source, and the parallel DML hints are defined on the ‘Loading hint’ property on the target table operator. If we then generate the code you can see the intermediate code generated below… Finally…remember the parallel enabled session for this all to fly… Anyway, hope this helps join a few dots….

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• Change the Integrated Weblogic Port number

  - by pavan.pvj

  There came a situation where I wanted to work with two JDevelopers simultaneously and start two different applications in two JDEVs. (Both of them have to in separate installation location, else it will create a problem because of system directory).Now, when we want to start WLS in JDEV, only the first one will be started and the other one fails with an exception of port conflict. Until few days back, $1million dollar question was how to change the integrated WLS port number?So, heres the answer after some R&D. In the view menu, click on "Application Server Navigator". Right click on Integrated Weblogic server.1) If it is the first time that you are trying to start the server, then there is a menu "Create Default Domain". If you click on this, a window will be displayed where it asks for the preferred port number. Change it here.2) If the domain is already created, then click on Properties and change the preferred port number.Again, if you want to change the port before starting JDEV from the file system, then goto $JDEV_USER_HOME/systemxxx/o.j2ee and open the file adrs-instances.xml and change the http-port in the startup-preferences:<hash n="startup-preferences">   <value n="http-port" v="7111"/></hash>Note 1: adrs-instances.xml will be created ONLY after you create the default domain.Note 2: systemxxx - refers to system.<JDEV version> like system.11.1.1.3.56.59 for PS2.Note 3: $JDEV_USER_HOME - in windows - would be C:\Documents and Settings\[user_name]\Application Data\JDeveloper"Now, you can run multiple Integrated WLS simultaneously. But please be aware that running more than one WLS server will degrade system performance.

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• Working with the new FSP dispersion rules

  - by Kevin Smith

  In a previous post I provided instructions for how you can remove the dispersion directories that are present in the default storage rule in the PS3 release of UCM (11.1.1.4.0). In this post I will describe a suggested approach for working with the new dispersion rules so that new content takes advantage of the dispersion rules but migrated content uses the legacy file paths so it will retain its current web URLs.

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• OWB 11gR2 &ndash; JDBC Helper Utility

  - by David Allan

  One of the common queries when importing the tables via JDBC with 11gR2 is determining why the import wizard doesn’t display the tables that you think it should. I often just use the script below to dump out the schemas, tables and columns that the JDBC driver is returning. This is useful in a few areas; to figure out what the schema name is returned to double check with the schema name you have used in the location (this is used in the DatabaseMetaData.getTables API call within the basic JDBC metadata import. to figure out the data types returned from the JDBC driver when you see columns skipped because of no datatype supported messages. also…I can do it via scripting and don’t need to recompile classes and stuff :-) Edit the tcl script and set the JDBC driver, the connection URL and the username and password (they are at the bottom of the script), the script then calls a basic tcl procedure which writes to standard out the schemas, tables and columns with various properties. For example I executed it using the XML JDBC driver from ODI over a simple customers XML file and it writes the following metadata; You can add more details as you need and execute from the OMBPlus panel within OWB. Download the sample tcl jdbc script here There is a bunch of really useful stuff on OTN documenting this area (start with the white paper here) that is worth checking out all related to the OWB SDK covering everything from platform definitions, custom metadata importers, application adapters, code templates etc. You can find a bunch of goodies on the OWB SDK here.

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• OT: Fixing choppy video playback on OS X

  - by terrencebarr

  This is a bit off-topic but I wanted to share because it seems a lot of people are running into issues with choppy video playback and stutter on Mac OS X. I am using a Mac Mini with Snow Leopard (10.6.8) as a home media center and it has worked great in the past, playing back music and videos from multiple sources (web, quicktime, VLC, EyeTV). A few weeks ago the video playback from all my sources started to become choppy, to stutter, and often the picture would hang for seconds at a time. Totally unusable. Drove me nuts for two weeks. After much research and trial-and-error it turns out the problem was an outdated Flash Player which seems to have messed up the video pipeline for the entire system. The short is, I updated the Flash Player to version 11 directly from the Adobe web site, rebooted the Mac Mini, and all is well again! Judging from the various posts across the web, video playback appears to be a fairly widespread problem for Mac users and I hope this helps some of you out there! And I can’t wait to get rid of Flash altogether – I can’t remember the times it has crashed my browser, hung my system, and screwed up things. Thanks Adobe ;-( Cheers, – Terrence Filed under: Uncategorized Tagged: Adobe Flash, Mac OS X

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• Changes to File Store Provider in UCM PS3

  - by Kevin Smith

  In the recent PS3 release of UCM (11.1.1.4.0) there are some significant changes to the File Store Provider (FSP) configuration. For new PS3 installs (not upgrades from PS2) the FSP default storage rule includes a dispersion rule that will change the web-layout and vault paths by adding dispersion directories to the paths to limit the number of files in the vault and web-layout directories. What that means is that if you install a new PS3 UCM instance and migrate content in from a previous version of UCM the web URL will change. That is a critical problem for web sites and just general document management. See below for some details on the FSP configuration in PS3 and how you can change the default behavior. use the link below to read the rest of this post where I describe the issue in detaill and provide instructions for how to modify a PS3 instance to use the old format for the web-layout path.

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• TomEE Integration in NetBeans Next

  - by Geertjan

  At JavaOne 2013, there was a lot of buzz around the TomEE server, e.g., many Tweets, nice party, and a new TomEE consulting company. For those tracking TomEE developments, it is interesting to note that recently the NetBeans IDE development builds have had added to them... TomEE support. Note: The TomEE support described here is not in NetBeans IDE 7.4, but in development builds for the next release of NetBeans IDE.For example, with NetBeans IDE development builds you're able to: register TomEE as a server in the Services window (TomEE has several distributions, e.g., one can use the "with JAX-RS" one, for example) create a Java EE 6 web project (e.g., Maven based) against this server create JPA entities from database create JAX-RS classes from JPA entities create JSF pages from JPA entities the IDE lets you create a new data source for TomEE and deploy it to the server the IDE figures out the components that are already packaged in TomEE, and the fact that (unlike with regular Tomcat), it does not need to package any components such as JSF implementation, persistence provider, or JAX-RS runtime, so that the resulting WAR file is very small the IDE can also do "deploy on save" with TomEE, so that your development cycle is very fast Adam Bien blogged about how he set up TomEE sometime ago, here. The official support in NetBeans IDE will be much more tightly integrated, simplifying the steps Adam describes. For example, the IDE does step 2 from Adam's blog for you, i.e., it sets up TomEE deployment roles. Moreover, it knows about all the technologies included in TomEE so that it can optimize the packaging; it knows about TomEE's persistence setup; it can work with TomEE data sources, etc. Below you see a Maven-based Java EE 6 PrimeFaces application (all entities and JSF pages generated from a database) deployed to TomEE in NetBeans IDE: And here's the management console for configuring and finetuning TomEE in NetBeans IDE: When I tried out the NetBeans IDE development build and TomEE, to see how everything fits together, I was surprised at how fast TomEE started up. Not sure what they did to it, but seems like a server on steroids. And setting it up in NetBeans IDE was trivial. Add the simple set up of TomEE in NetBeans IDE to the many benefits that the widely praised out of the box NetBeans Maven tools make possible, together with the fact that not one single plugin had to be installed to get everything you see described here up and running... and you have a really powerful combination of dev tools, all for free.

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• Focus on Fusion Development at OOW 2009

  Your guide to JDeveloper and ADF activities

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• A Virtual Dilemma

  - by antony.reynolds

  Solving a Gotcha with VirtualBox Guest Additions I was just building a new virtual machine based off an existing image that didn’t have the Virtual Box Guest Additions enabled.  The guest additions allow tight integration between the guest OS and the host environment, providing seemless mouse transfer and the ability to take advantage of full video screen size.  The guest additions need to be linked with the kernel which requires the kernel-devel package to be installed.  After installing this package and then trying to add the guest additions it failed, suggesting that I might not have the kernel-devel package that I had installed.  After a little though I finally realized what had happened.  When I grabbed the kernel-devel package I hadn’t checked the version of my kernel.  The kernel-devel I downloaded didn’t match the revision of the kernel I was running!  Hence my problems.  I upgraded the kernel to the same revision as my kernel-devel package and rebooted.  I had installed dkms so I was pleased to see that my VBox Additions successfully built and the mouse and screen now worked as expected. So now you know my embarrassing story for the day :-)

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• CON6714 - Mixed-Language Development: Leveraging Native Code from Java

  - by Darryl Gove

  Here's the abstract from my JavaOne talk: There are some situations in which it is necessary to call native code (C/C++ compiled code) from Java applications. This session describes how to do this efficiently and how to performance-tune the resulting applications. The objectives for the session are: Explain reasons for using native code in Java applications Describe pitfalls of calling native code from Java Discuss performance-tuning of Java apps that use native code I'll cover how to call native code from Java, debugging native code, and then I'll dig into performance tuning the code. The talk is not going too deep on performance tuning - focusing on the JNI specific topics; I'll do a bit more about performance tuning in my OpenWorld talk later in the day.

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• Hot Off the Presses! Get Your Release of the October Procurement Newsletter!

  - by LuciaC

  Get all the recent news and featured topics for the Procurement modules including Purchasing, iProcurement, Sourcing and iSupplier. Find out what Procurement experts are recommending to prevent and resolve issues.  Important links are also included.  The October newsletter features articles on: The new Procurement Enhancement Request Community Procurement Community Development Corner Updated version of the PO Approvals Analyzer Uploading Files And there is much more….. Access the newsletter now: Doc ID 111111.1

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• Learn more about SPARC by listening to our newly recorded podcasts

  - by Cinzia Mascanzoni

  Please listen to our newly recorded series of four podcasts focused on SPARC. The topics are: How SPARC T4 Servers Open New Opportunities SPARC Roadmap and SPARC T4 Architecture Highlights SPARC T4 For Installed Base Refresh and Consolidation SPARC T4 – How Does it Stack up Against the Competition? Rob Ludeman, from SPARC Product Management, and Thomas Ressler, WWA&C Alliances Consultant, are your hosts. The intent is to continue to help you understand how to position and sell SPARC/T4 into your customer architecture.Details on how to access these podcasts can be found here.

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• Tinkerforge Rotation/LCD & JavaFX Plans

  - by Geertjan

  The first time I integrated two Tinkerforge bricklets, the day before yesterday, was pretty cool: import com.tinkerforge.BrickMaster; import com.tinkerforge.BrickletLCD20x4; import com.tinkerforge.BrickletRotaryPoti; import com.tinkerforge.IPConnection; import java.util.Calendar; public class TFConnectionDemo { private static final String HOST = "localhost"; private static final int PORT = 4223; private static final String MASTERBRICKUID = "somethingabc"; private static final String LCDUID = "somethingabc"; private static final String ROTIUID = "somethingabc"; private static IPConnection ipc; private static BrickMaster master = new BrickMaster(MASTERBRICKUID); private static BrickletLCD20x4 lcd = new BrickletLCD20x4(LCDUID); private static BrickletRotaryPoti poti = new BrickletRotaryPoti(ROTIUID); public static void main(String[] args) { try { ipc = new IPConnection(HOST, PORT); ipc.addDevice(master); ipc.addDevice(lcd); ipc.addDevice(poti); poti.setPositionCallbackPeriod(50); poti.addListener(new BrickletRotaryPoti.PositionListener() { @Override public void position(short position) { lcd.clearDisplay(); Calendar cal = Calendar.getInstance(); lcd.writeLine((short) 0, (short) 0, cal.getTime().toString()); lcd.writeLine((short) 1, (short) 0, "Rotation: " + position); } }); } catch (Exception e) { } } } The result is that the display text in the LCD bricklet changes while I turn the rotation bricklet: Now imagine that you have some JavaFX charts and, while you turn the rotation bricklet (i.e., the dial thing that I'm turning above), the values of the charts change. That would be pretty cool because you'd be able to animate the JavaFX charts by rotating an object externally, i.e., without even touching the keyboard. That would be pretty cool to see and shouldn't be hard to implement.

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• Systems of Engagement

  - 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;}  Engagement Week 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;} This week we’ll be looking at the ever evolving topic of systems of engagement. This topic continues generating widespread discussion around how we connect with businesses, employers, governments, and extended social communities across multiple channels spanning web, mobile and human face to face contact. Earlier in our Social Business Thought Leader Webcast Series, we had AIIM President John Mancini presenting "Moving from Records to Engagement to Insight" discussing the factors that are driving organizations to think more strategically about the intersection of content management, social technologies, and business processes. John spoke about how Content Management and Enterprise IT are being changed by social technologies and how new technologies are being used to drive innovation and transform processes along and what the implications of this transformation are for information professionals. He used these two slides below to illustrate the evolution from Systems of Record to Systems of Engagement. The AIIM White Paper is available for download from the AIIM website. Later this week (09/20), we'll have another session in our Social Business Thought Leader Webcast Series featuring  R “Ray” Wang (@rwang0) Principal Analyst & CEO from Constellation Research presenting: "Engaging Customers in the Era of Overexposure"  More info to come tomorrow on the upcoming webcast this week. ~~~~~~ In the spirit of spreading good karma - one of the first things that came to mind as I was thinking about "Engagement" was the evolution of the Marriage Proposal.  Someone sent me a link to this link a couple of months ago and it raises the bar on all proposals. I hope you'll enjoy!

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• Limitations of User-Defined Customer Events (FA Type Profile)

  - by Rajesh Sharma

  CC&B automatically creates field activities when a specific Customer Event takes place. This depends on the way you have setup your Field Activity Type Profiles, the templates within, and associated SP Condition(s) on the template. CC&B uses the service point type, its state and referenced customer event to determine which field activity type to generate.   Customer events available in the base product include: Cut for Non-payment (CNP) Disconnect Warning (DIWA) Reconnect for Payment (REPY) Reread (RERD) Stop Service (STOP) Start Service (STRT) Start/Stop (STSP)   Note the Field values/codes defined for each event.   CC&B comes with a flexibility to define new set of customer events. These can be defined in the Look Up - CUST_EVT_FLG. Values from the Look Up are used on the Field Activity Type Profile Template page.     So what's the use of having user-defined Customer Events? And how will the system detect such events in order to create field activity(s)?   Well, system can only detect such events when you reference a user-defined customer event on a Severance Event Type for an event type Create Field Activities.     This way you can create additional field activities of a specific field activity type for user-defined customer events.   One of our customers adopted this feature and created a user-defined customer event CNPW - Cut for Non-payment for Water Services. This event was then linked on a Field Activity Type Profile and referenced on a Severance Event - CUT FOR NON PAY-W. The associated Severance Process was configured to trigger a reconnection process if it was cancelled (done by defining a Post Cancel Algorithm). Whenever this Severance Event was executed, a specific type of Field Activity was generated for disconnection purposes. The Field Activity type was determined by the system from the Field Activity Type Profile referenced for the SP Type, SP's state and the referenced user-defined customer event. All was working well until the time when they realized that in spite of the Severance Process getting cancelled (when a payment was made); the Post Cancel Algorithm was not executed to start a Reconnection Severance Process for the purpose of generating a reconnection field activity and reconnecting the service.   Basically, the Post Cancel algorithm (if specified on a Severance Process Template) is triggered when a Severance Process gets cancelled because a credit transaction has affected/relieved a Service Agreement's debt.   So what exactly was happening? Now we come to actual question as to what are limitations in having user-defined customer event.   System defined/base customer events are hard-coded across the entire system. There is an impact even if you remove any customer event entry from the Look Up. User-defined customer events are not recognized by the system anywhere else except in the severance process, as described above.   There are few programs which have routines to first validate the completion of disconnection field activities, which were raised as a result of customer event CNP - Cut for Non-payment in order to perform other associated actions. One such program is the Post Cancel Algorithm, referenced on a Severance Process Template, generally used to reconnect services which were disconnected from other Severance Event, specifically CNP - Cut for Non-Payment. Post cancel algorithm provided by the product - SEV POST CAN does the following (below is the algorithm's description):   This algorithm is called after a severance process has been cancelled (typically because the debt was paid and the SA is no longer eligible to be on the severance process). It checks to see if the process has a completed 'disconnect' event and, if so, starts a reconnect process using the Reconnect Severance Process Template defined in the parameter.    Notice the underlined text. This algorithm implicitly checks for Field Activities having completed status, which were generated from Severance Events as a result of CNP - Cut for Non-payment customer event.   Now if we look back to the customer's issue, we can relate that the Post Cancel algorithm was triggered, but was not able to find any 'Completed' CNP - Cut for Non-payment related field activity. And hence was not able to start a reconnection severance process. This was because a field activity was generated and completed for a customer event CNPW - Cut for Non-payment of Water Services instead.   To conclude, if you introduce new customer events, you should be aware that you don't extend or simulate base customer events, the ones that are included in the base product, as they are further used to provide/validate additional business functions.  

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• Gradle for NetBeans RCP

  - by Geertjan

  Start with the NetBeans Paint Application and do the following to build it via Gradle (i.e., no Gradle/NetBeans plugin is needed for the following steps), assuming you've set up Gradle. Do everything below in the Files or Favorites window, not in the Projects window. In the application directory "Paint Application". Create a file named "settings.gradle", with this content: include 'ColorChooser', 'Paint' Create another file in the same location, named "build.gradle", with this content: subprojects { apply plugin: "announce" apply plugin: "java" sourceSets { main { java { srcDir 'src' } resources { srcDir 'src' } } } } In the module directory "Paint". Create a file named "build.gradle", with this content: dependencies { compile fileTree("$rootDir/build/public-package-jars").matching { include '**/*.jar' } } task show << { configurations.compile.each { dep -> println "$dep ${dep.isFile()}" } } Note: The above is a temporary solution, as you can see, the expectation is that the JARs are in the 'build/public-packages-jars' folder, which assumes an Ant build has been done prior to the Gradle build. Now run 'gradle classes' in the "Paint Application" folder and everything will compile correctly. So, this is how the Paint Application now looks: Preferable to the second 'build.gradle' would be this, which uses the JARs found in the NetBeans Platform... netbeansHome = '/home/geertjan/netbeans-dev-201111110600' dependencies { compile files("$rootDir/ColorChooser/release/modules/ext/ColorChooser.jar") def projectXml = new XmlParser().parse("nbproject/project.xml") projectXml.configuration.data."module-dependencies".dependency."code-name-base".each { if (it.text().equals('org.openide.filesystems')) { def dep = "$netbeansHome/platform/core/"+it.text().replace('.','-')+'.jar' compile files(dep) } else if (it.text().equals('org.openide.util.lookup') || it.text().equals('org.openide.util')) { def dep = "$netbeansHome/platform/lib/"+it.text().replace('.','-')+'.jar' compile files(dep) } else { def dep = "$netbeansHome/platform/modules/"+it.text().replace('.','-')+'.jar' compile files(dep) } } } task show << { configurations.compile.each { dep -> println "$dep ${dep.isFile()}" } } However, when you run 'gradle classes' with the above, you get an error like this: geertjan@geertjan:~/NetBeansProjects/PaintApp1/Paint$ gradle classes :Paint:compileJava [ant:javac] Note: Attempting to workaround javac bug #6512707 [ant:javac] [ant:javac] [ant:javac] An annotation processor threw an uncaught exception. [ant:javac] Consult the following stack trace for details. [ant:javac] java.lang.NullPointerException [ant:javac] at com.sun.tools.javac.util.DefaultFileManager.getFileForOutput(DefaultFileManager.java:1058) No idea why the above happens, still trying to figure it out. Once the above works, we can start figuring out how to use the NetBeans Maven repo instead and then the user of the plugin will be able to select whether to use local JARs or JARs from the NetBeans Maven repo. Many thanks to Hans Dockter who put the above together with me today, via Skype!

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• Efficient inline templates and C++

  - by Darryl Gove

  I've talked before about calling inline templates from C++, I've also talked about calling inline templates efficiently. This time I want to talk about efficiently calling inline templates from C++. The obvious starting point is that I need to declare the inline templates as being extern "C": extern "C" { int mytemplate(int); } This enables us to call it, but the call may not be very efficient because the compiler will treat it as a function call, and may produce suboptimal code based on that premise. So we need to add the no_side_effect pragma: extern "C" { int mytemplate(int); #pragma no_side_effect(mytemplate) } However, this may still not produce optimal code. We've discussed how the no_side_effect pragma cannot be combined with exceptions, well we know that the code cannot produce exceptions, but the compiler doesn't know that. If we tell the compiler that information it may be able to produce even better code. We can do this by adding the "throw()" keyword to the template declaration: extern "C" { int mytemplate(int) throw(); #pragma no_side_effect(mytemplate) } The following is an example of how these changes might improve performance. We can take our previous example code and migrate it to C++, adding the use of a try...catch construct: #include <iostream extern "C" { int lzd(int); #pragma no_side_effect(lzd) } int a; int c=0; class myclass { int routine(); }; int myclass::routine() { try { for(a=0; a<1000; a++) { c=lzd(c); } } catch(...) { std::cout << "Something happened" << std::endl; } return 0; } Compiling this produces a slightly suboptimal code sequence in the hot loop: $ CC -O -xtarget=T4 -S t.cpp t.il ... /* 0x0014 23 */ lzd %o0,%o0 /* 0x0018 21 */ add %l6,1,%l6 /* 0x001c */ cmp %l6,1000 /* 0x0020 */ bl,pt %icc,.L77000033 /* 0x0024 23 */ st %o0,[%l7] There's a store in the delay slot of the branch, so we're repeatedly storing data back to memory. If we change the function declaration to include "throw()", we get better code: $ CC -O -xtarget=T4 -S t.cpp t.il ... /* 0x0014 21 */ add %i1,1,%i1 /* 0x0018 23 */ lzd %o0,%o0 /* 0x001c 21 */ cmp %i1,999 /* 0x0020 */ ble,pt %icc,.L77000019 /* 0x0024 */ nop The store has gone, but the code is still suboptimal - there's a nop in the delay slot rather than useful work. However, it's good enough for this example. The point I'm making is that the compiler produces the better code with both the "throw()" and the no side effect pragma.

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• The Middle of Every Project

  - by andrew.sparks

  I read a quote somewhere “The middle of every successful project looks like a mess.” or something to that effect. I suppose the projects where the beginning, middle and end are a mess are the ones you need to watch out for. Right now we are in ramp up of the maintenance/support teams at a big project in the Nordics. We are facing a year of mixed mode operations, where we have production operations and the phased rollout to new locations in parallel. The support team supports, and the deployment team deploys. As usual the assumption right up to about a month or so before initial go-live was that the deployment team would carry the support. Not! Consequently we had a last minute scramble over the Christmas/New Year to fire up a support/maintenance team. While it is a bit messy and not perfect – the quality of the mess (I mean scramble) is not so bad. Weekly operational review with the operational delivery managers, written issue lists and assigned actions, candid discussions getting the problems on the table and documented, issues getting solved and moved off the table. So while the middle of a project might look like a mess (even the start) it is methodical use of project management tools of checklists and scheduled communication points that are helping us navigate out of the mess and bring it all under control.

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• Think Global, Act Regional with Identity Globe Trotters

  - by Tanu Sood

  This month we will be introducing a new section on our blog. Titled “Identity Globe Trotters”, this will be a monthly series that would feature a regional topic the last Friday of every month. We would invite guest contributors from different regions to highlight a region-specific business issue, solution, highlight a customer implementation or a regional discussion of interest. If you have an Identity management topic in mind that you’d like featured in this section, do let us know. We look forward to engaging in meaningful discussions with you on global perspectives, regional solutions.

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• Gradle Support in NetBeans IDE 7.2

  - by Geertjan

  Russel Winder and Steve Chin spent half an hour, and then gave up, setting up NetBeans IDE to use Gradle, because they couldn't find the NetBeans Gradle plugin, during Steve's NightHacking tour. That need happen no more because Attila Kelemen's NetBeans Gradle plugin is now available in the Plugin Manager in NetBeans IDE 7.2: Aside from opening Gradle-based applications, you can now also create new ones: Details and documentation: https://github.com/kelemen/netbeans-gradle-project

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• Crawling a Content Folio

  - by Kyle Hatlestad

  Content Folios in WebCenter Content allow you to assemble, track, and access a logical group of documents and/or links.  It allows you to manage them as just a list of items (simple folio) or organized as a hierarchy (advanced folio).  The built-in UI in content server allows you to work with these folios, but publishing them or consuming them externally can be a bit of a challenge.   [Read More]

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• Crawling a Content Folio

  - by Kyle Hatlestad

  Content Folios in WebCenter Content allow you to assemble, track, and access a logical group of documents and/or links.  It allows you to manage them as just a list of items (simple folio) or organized as a hierarchy (advanced folio).  The built-in UI in content server allows you to work with these folios, but publishing them or consuming them externally can be a bit of a challenge.   The folios themselves are actually XML files that contain the structure, attributes, and pointers to the content items.  So to publish this somewhere, such as a Site Studio page, you could perhaps use an XML parser to traverse the structure and create your output.  But XML parsers are not always the easiest or most efficient to use.  In order to more easily crawl and consume a Content Folio, Ed Bryant - Principal Sales Consultant, wrote a component to do just that.  His component adds a service which does all the work for you and returns the folio structure as a simple resultset.  So consuming and publishing that folio on a Site Studio page or in your portal using RIDC is a breeze!  For example, let's take an advanced Content Folio example like this: If we look at the native file, the XML looks like this: But if we access the folio using the new service - http://server/cs/idcplg?IdcService=FOLIO_CRAWL&dDocName=ecm008003&IsPageDebug=1 - this is what the result set looks like (using the IsPageDebug parameter). Given this as the result set, it makes it very easy to consume and repurpose that folio. You can download a copy of the sample component here. Special thanks to Ed for letting me share this component!

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• Netcat I/O enhancements

  - by user13277689

  When Netcat integrated into OpenSolaris it was already clear that there will be couple of enhancements needed. The biggest set of the changes made after Solaris 11 Express was released brings various I/O enhancements to netcat shipped with Solaris 11. Also, since Solaris 11, the netcat package is installed by default in all distribution forms (live CD, text install, ...). Now, let's take a look at the new functionality: /usr/bin/netcat alternative program name (symlink) -b bufsize I/O buffer size -E use exclusive bind for the listening socket -e program program to execute -F no network close upon EOF on stdin -i timeout extension of timeout specification -L timeout linger on close timeout -l -p port addr previously not allowed usage -m byte_count Quit after receiving byte_count bytes -N file pattern for UDP scanning -I bufsize size of input socket buffer -O bufsize size of output socket buffer -R redir_spec port redirection addr/port[/{tcp,udp}] syntax of redir_spec -Z bypass zone boundaries -q timeout timeout after EOF on stdin Obviously, the Swiss army knife of networking tools just got a bit thicker. While by themselves the options are pretty self explanatory, their combination together with other options, context of use or boundary values of option arguments make it possible to construct small but powerful tools. For example: the port redirector allows to convert TCP stream to UDP datagrams. the buffer size specification makes it possible to send one byte TCP segments or to produce IP fragments easily. the socket linger option can be used to produce TCP RST segments by setting the timeout to 0 execute option makes it possible to simulate TCP/UDP servers or clients with shell/python/Perl/whatever script etc. If you find some other helpful ways use please share via comments. Manual page nc(1) contains more details, along with examples on how to use some of these new options.

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