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• how can I invoke a webservice from another webservice

  - by vinny

  I have two webservices A and B. A needs to invoke one of the webMethods in B. How can I achieve this? I am using maven's wsimport plugin to build A. This is to generate the necessary stubs for B and include them as part of the Webservice A. However, when I try to Invoke the webmethod o f B, I get an Exception. Can anyone please tell me what is going on? Below Is the code and the exception trace: Code: BBeanService bbs = new BBeanService(); BBean bb = bbs.getBBeanPort(); bb.invokeWebService(); // this is throwing exception This is the exception trace: java.lang.NullPointerException at com.sun.xml.ws.fault.SOAP11Fault.getProtocolException(SOAP11Fault.java:188) at com.sun.xml.ws.fault.SOAPFaultBuilder.createException(SOAPFaultBuilder.java:116) at com.sun.xml.ws.client.sei.SyncMethodHandler.invoke(SyncMethodHandler.java:119) at com.sun.xml.ws.client.sei.SyncMethodHandler.invoke(SyncMethodHandler.java:89) at com.sun.xml.ws.client.sei.SEIStub.invoke(SEIStub.java:118) at $Proxy175.getCase(Unknown Source) at com.kebok.ais.billing.server.ejb.impl.ChargeManagerBean.generateBillDetails(ChargeManagerBean.java:144) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.sun.enterprise.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1011) at com.sun.enterprise.security.SecurityUtil.invoke(SecurityUtil.java:175) at com.sun.ejb.containers.BaseContainer.invokeTargetBeanMethod(BaseContainer.java:2920) at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:4011) at com.sun.ejb.containers.WebServiceInvocationHandler.invoke(WebServiceInvocationHandler.java:190) at $Proxy173.generateBillDetails(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.sun.enterprise.webservice.InvokerImpl.invoke(InvokerImpl.java:78) at com.sun.enterprise.webservice.EjbInvokerImpl.invoke(EjbInvokerImpl.java:82) at com.sun.xml.ws.server.InvokerTube$2.invoke(InvokerTube.java:146) at com.sun.xml.ws.server.sei.EndpointMethodHandler.invoke(EndpointMethodHandler.java:257) at com.sun.xml.ws.server.sei.SEIInvokerTube.processRequest(SEIInvokerTube.java:93) at com.sun.xml.ws.api.pipe.Fiber.__doRun(Fiber.java:595) at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:554) at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:539) at com.sun.xml.ws.api.pipe.Fiber.runSync(Fiber.java:436) at com.sun.xml.ws.api.pipe.helper.AbstractTubeImpl.process(AbstractTubeImpl.java:106) at com.sun.enterprise.webservice.MonitoringPipe.process(MonitoringPipe.java:147) at com.sun.xml.ws.api.pipe.helper.PipeAdapter.processRequest(PipeAdapter.java:115) at com.sun.xml.ws.api.pipe.Fiber._doRun(Fiber.java:595) at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:554) at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:539) at com.sun.xml.ws.api.pipe.Fiber.runSync(Fiber.java:436) at com.sun.xml.ws.api.pipe.helper.AbstractTubeImpl.process(AbstractTubeImpl.java:106) at com.sun.xml.ws.tx.service.TxServerPipe.process(TxServerPipe.java:317) at com.sun.enterprise.webservice.CommonServerSecurityPipe.processRequest(CommonServerSecurityPipe.java:222) at com.sun.enterprise.webservice.CommonServerSecurityPipe.process(CommonServerSecurityPipe.java:133) at com.sun.xml.ws.api.pipe.helper.PipeAdapter.processRequest(PipeAdapter.java:115) at com.sun.xml.ws.api.pipe.Fiber._doRun(Fiber.java:595) at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:554) at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:539) at com.sun.xml.ws.api.pipe.Fiber.runSync(Fiber.java:436) at com.sun.xml.ws.server.WSEndpointImpl$2.process(WSEndpointImpl.java:243) at com.sun.xml.ws.transport.http.HttpAdapter$HttpToolkit.handle(HttpAdapter.java:444) at com.sun.xml.ws.transport.http.HttpAdapter.handle(HttpAdapter.java:244) at com.sun.xml.ws.transport.http.servlet.ServletAdapter.handle(ServletAdapter.java:135) at com.sun.enterprise.webservice.Ejb3MessageDispatcher.handlePost(Ejb3MessageDispatcher.java:113) at com.sun.enterprise.webservice.Ejb3MessageDispatcher.invoke(Ejb3MessageDispatcher.java:87) at com.sun.enterprise.webservice.EjbWebServiceServlet.dispatchToEjbEndpoint(EjbWebServiceServlet.java:228) at com.sun.enterprise.webservice.EjbWebServiceServlet.service(EjbWebServiceServlet.java:157) at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) at com.sun.enterprise.web.AdHocContextValve.invoke(AdHocContextValve.java:114) at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648) at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:587) at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:87) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:222) at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648) at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:587) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1096) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:166) at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648) at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:587) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1096) at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:288) at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.invokeAdapter(DefaultProcessorTask.java:647) at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.doProcess(DefaultProcessorTask.java:579) at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.process(DefaultProcessorTask.java:831) at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.executeProcessorTask(DefaultReadTask.java:341) at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:263) at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:214) at com.sun.enterprise.web.portunif.PortUnificationPipeline$PUTask.doTask(PortUnificationPipeline.java:380) at com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:265) at com.sun.enterprise.web.connector.grizzly.ssl.SSLWorkerThread.run(SSLWorkerThread.java:106) Caused by: javax.xml.ws.WebServiceException: java.lang.NullPointerException at com.sun.enterprise.security.jmac.config.PipeHelper.makeFaultResponse(PipeHelper.java:328) at com.sun.enterprise.security.jmac.config.PipeHelper.getFaultResponse(PipeHelper.java:366) at com.sun.enterprise.webservice.CommonServerSecurityPipe.processRequest(CommonServerSecurityPipe.java:227) at com.sun.enterprise.webservice.CommonServerSecurityPipe.process(CommonServerSecurityPipe.java:133) at com.sun.xml.ws.api.pipe.helper.PipeAdapter.processRequest(PipeAdapter.java:115) at com.sun.xml.ws.api.pipe.Fiber._doRun(Fiber.java:595) at com.sun.xml.ws.api.pipe.Fiber._doRun(Fiber.java:554) at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:539) at com.sun.xml.ws.api.pipe.Fiber.runSync(Fiber.java:436) at com.sun.xml.ws.server.WSEndpointImpl$2.process(WSEndpointImpl.java:243) at com.sun.xml.ws.transport.http.HttpAdapter$HttpToolkit.handle(HttpAdapter.java:444) at com.sun.xml.ws.transport.http.HttpAdapter.handle(HttpAdapter.java:244) at com.sun.xml.ws.transport.http.servlet.ServletAdapter.handle(ServletAdapter.java:135) at com.sun.enterprise.webservice.Ejb3MessageDispatcher.handlePost(Ejb3MessageDispatcher.java:113) at com.sun.enterprise.webservice.Ejb3MessageDispatcher.invoke(Ejb3MessageDispatcher.java:87) at com.sun.enterprise.webservice.EjbWebServiceServlet.dispatchToEjbEndpoint(EjbWebServiceServlet.java:228) at com.sun.enterprise.webservice.EjbWebServiceServlet.service(EjbWebServiceServlet.java:157) at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) at com.sun.enterprise.web.AdHocContextValve.invoke(AdHocContextValve.java:114) at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648) at org.apache.catalina.

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• Talend Enterprise Data Integration overperforms on Oracle SPARC T4

  - by Amir Javanshir

  The SPARC T microprocessor, released in 2005 by Sun Microsystems, and now continued at Oracle, has a good track record in parallel execution and multi-threaded performance. However it was less suited for pure single-threaded workloads. The new SPARC T4 processor is now filling that gap by offering a 5x better single-thread performance over previous generations. Following our long-term relationship with Talend, a fast growing ISV positioned by Gartner in the “Visionaries” quadrant of the “Magic Quadrant for Data Integration Tools”, we decided to test some of their integration components with the T4 chip, more precisely on a T4-1 system, in order to verify first hand if this new processor stands up to its promises. Several tests were performed, mainly focused on: Single-thread performance of the new SPARC T4 processor compared to an older SPARC T2+ processor Overall throughput of the SPARC T4-1 server using multiple threads The tests consisted in reading large amounts of data --ten's of gigabytes--, processing and writing them back to a file or an Oracle 11gR2 database table. They are CPU, memory and IO bound tests. Given the main focus of this project --CPU performance--, bottlenecks were removed as much as possible on the memory and IO sub-systems. When possible, the data to process was put into the ZFS filesystem cache, for instance. Also, two external storage devices were directly attached to the servers under test, each one divided in two ZFS pools for read and write operations. Multi-thread: Testing throughput on the Oracle T4-1 The tests were performed with different number of simultaneous threads (1, 2, 4, 8, 12, 16, 32, 48 and 64) and using different storage devices: Flash, Fibre Channel storage, two stripped internal disks and one single internal disk. All storage devices used ZFS as filesystem and volume management. Each thread read a dedicated 1GB-large file containing 12.5M lines with the following structure: customerID;FirstName;LastName;StreetAddress;City;State;Zip;Cust_Status;Since_DT;Status_DT 1;Ronald;Reagan;South Highway;Santa Fe;Montana;98756;A;04-06-2006;09-08-2008 2;Theodore;Roosevelt;Timberlane Drive;Columbus;Louisiana;75677;A;10-05-2009;27-05-2008 3;Andrew;Madison;S Rustle St;Santa Fe;Arkansas;75677;A;29-04-2005;09-02-2008 4;Dwight;Adams;South Roosevelt Drive;Baton Rouge;Vermont;75677;A;15-02-2004;26-01-2007 […] The following graphs present the results of our tests: Unsurprisingly up to 16 threads, all files fit in the ZFS cache a.k.a L2ARC : once the cache is hot there is no performance difference depending on the underlying storage. From 16 threads upwards however, it is clear that IO becomes a bottleneck, having a good IO subsystem is thus key. Single-disk performance collapses whereas the Sun F5100 and ST6180 arrays allow the T4-1 to scale quite seamlessly. From 32 to 64 threads, the performance is almost constant with just a slow decline. For the database load tests, only the best IO configuration --using external storage devices-- were used, hosting the Oracle table spaces and redo log files. Using the Sun Storage F5100 array allows the T4-1 server to scale up to 48 parallel JVM processes before saturating the CPU. The final result is a staggering 646K lines per second insertion in an Oracle table using 48 parallel threads. Single-thread: Testing the single thread performance Seven different tests were performed on both servers. Given the fact that only one thread, thus one file was read, no IO bottleneck was involved, all data being served from the ZFS cache. Read File ? Filter ? Write File: Read file, filter data, write the filtered data in a new file. The filter is set on the “Status” column: only lines with status set to “A” are selected. This limits each output file to about 500 MB. Read File ? Load Database Table: Read file, insert into a single Oracle table. Average: Read file, compute the average of a numeric column, write the result in a new file. Division & Square Root: Read file, perform a division and square root on a numeric column, write the result data in a new file. Oracle DB Dump: Dump the content of an Oracle table (12.5M rows) into a CSV file. Transform: Read file, transform, write the result data in a new file. The transformations applied are: set the address column to upper case and add an extra column at the end, which is the concatenation of two columns. Sort: Read file, sort a numeric and alpha numeric column, write the result data in a new file. The following table and graph present the final results of the tests: Throughput unit is thousand lines per second processed (K lines/second). Improvement is the % of improvement between the T5140 and T4-1. Test T4-1 (Time s.) T5140 (Time s.) Improvement T4-1 (Throughput) T5140 (Throughput) Read/Filter/Write 125 806 645% 100 16 Read/Load Database 195 1111 570% 64 11 Average 96 557 580% 130 22 Division & Square Root 161 1054 655% 78 12 Oracle DB Dump 164 945 576% 76 13 Transform 159 1124 707% 79 11 Sort 251 1336 532% 50 9 The improvement of single-thread performance is quite dramatic: depending on the tests, the T4 is between 5.4 to 7 times faster than the T2+. It seems clear that the SPARC T4 processor has gone a long way filling the gap in single-thread performance, without sacrifying the multi-threaded capability as it still shows a very impressive scaling on heavy-duty multi-threaded jobs. Finally, as always at Oracle ISV Engineering, we are happy to help our ISV partners test their own applications on our platforms, so don't hesitate to contact us and let's see what the SPARC T4-based systems can do for your application! "As describe in this benchmark, Talend Enterprise Data Integration has overperformed on T4. I was generally happy to see that the T4 gave scaling opportunities for many scenarios like complex aggregations. Row by row insertion in Oracle DB is faster with more than 650,000 rows per seconds without using any bulk Oracle capabilities !" Cedric Carbone, Talend CTO.

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• Oracle WebCenter at the Enterprise 2.0 Conference

  - by Brian Dirking

  We had a great week at the E20 Conference, presenting in four sessions – Andy MacMillan gave a session titled Today’s Successful Enterprises are Social Enterprises and was on a panel that Tony Byrne moderated; Christian Finn spoke on a panel on Unified Communications Unified Communications + Social Computing = Best of Both Worlds?, Mark Bennett spoke on a panel on The Evolution of Talent Management. The key areas of focus this year were sentiment analysis, adoption and community building, the benefits of failure, and social’s role in process applications. Sentiment analysis. This was focused not on external audiences but more on employee sentiment. Tim Young showed his internal "NikoNiko" project, where employees use smilies to report their current mood. The result was a dashboard that showed the company mood by department. Since the goal is to improve productivity, people can see which departments are running into issues and try and address them. A company might otherwise wait until the end of the quarter financials to find out that there was a problem and product didn’t ship. This is a way to identify issues immediately. Tim is great – he had the crowd laughing as soon as he hit the stage, with his proposed hastag for his session: by making it 138 characters long, people couldn’t say much behind his back. And as I tweeted during his session, I loved his comment that complexity diffuses energy - it sounds like something Sun Tzu would say. Another example of employee sentiment analysis was CubeVibe. Founder and CEO Aaron Aycock, in his 3 minute pitch or die session talked about how engaged employees perform better. It was too bad he got gonged, he was just picking up speed, but CubeVibe did win the vote – congratulations to them. Internal adoption, community building, and involvement. On this topic I spoke to Terri Griffith, and she said there is some good work going on at University of Indiana regarding this, and hinted that she might be blogging about it in the near future. This area holds lots of interest for me. Amongst our customers, - CPAC stands out as an organization that has successfully built a community. So, I wonder - what are the building blocks? A strong leader? A common or unifying purpose? A certain level of engagement? I imagine someone has created an equation that says “for a community to grow at 30% per month, there must be an engagement level x to the square root of y, where x equals current community size, and y equals the expected growth rate, and the result is how many engagements the average user must contribute to maintain that growth.” Does anyone have a framework like that? The net result of everyone’s experience is that there is nothing to do but start early and fail often. Kevin Jones made this the focus of his keynote. He talked about the types of failure and what they mean. And he showed his famous kids at work video: Kevin’s blog also has this post: Social Business Failure #8: Workflow Integration. This is something that we’ve been working on at Oracle. Since so much of business is based in enterprise applications such as ERP and CRM (and since Oracle offers e-Business Suite, Siebel, PeopleSoft, and JD Edwards, as well as Fusion Applications), it makes sense that the social capabilities of Oracle WebCenter is built right into these applications. There are two types of social collaboration – ad-hoc, and exception handling. When you are in a business process and encounter an exception, you immediately look for 1) the document that tells you how to handle it, or 2) the person who can tell you how to handle it. With WebCenter built into these processes, people either search their content management system, or engage in expertise location and conversation. The great thing is, THEY DON’T HAVE TO LEAVE THE APPLICATION TO DO IT. Oracle has built the social capabilities right into the applications and business processes. I don’t think enough folks were able to see that at the event, but I expect that over the next six months folks will become very aware of it. WebCenter also provides the ability to have ad-hoc collaboration, search, and expertise location that folks need when they are innovating or collaborating. We demonstrated Oracle Social Network. It’s built on our Oracle WebCenter product to provide social collaboration inside and outside of your company. When we showed it to people, there were a number of areas that they commented on that were different from the other products being shown at the conference: Screenshots from within the product Many authors working on documents simultaneously Flagging people for follow up Direct ability to call out to people Ability to see presence not just if someone is online, but which conversation they are actively in Great stuff, the conference was full of smart people that that we enjoy spending time with. We’ll keep up in the meantime, but we look forward to seeing you in Boston.

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• Install Oracle Enterprise Linux 5 on VMWare

  - by TUFEKCIOGLU,FATIH

  In this article, we will try to install Install Oracle Enterprise Linux 5 on VMWare. To make the installation easier, I will show the screenshots of the whole steps. 1.   2.   3.   4.   5.   6. 7. 8.   9.   10.   11.   12.   13.   14.   15.   16.   17.   18.   19.   20.   21.   22.   23.   24.   25.   26.   27.   28.   29.   30.   31.   32.   33.   34.   35.   36.   37.   38.   39.   40.   41.   42.   43.   44.   45.   46.   47.   48.   49.   50.   51.   52.   53.   54.   55.   56.   57.   58.   59.   60.   61.   62.   The installation is completed, Thanks, Fatih Tufekcioglu  

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• Podcast Show Notes: William Ulrich and Neal McWhorter on Business Architecture

  - by Bob Rhubart

  The latest ArchBeat podcast program features a four-part conversation with William Ulrich and Neal McWhorter, the authors of Business Architecture: The Art and Practice of Business Transformation, available from Meghan-Kiffer Press. Listen to Part 1 Bill and Neal cover the basics and discuss the effects of the lack of business architecture on organizations. Listen to Part 2 (Jan 19) What really happens to the billions of dollars annually invested in IT. Listen to Part 3 (Jan 26) Why the IT and business sides of many organizations can’t play nice. Listen to Part 4 (Feb 2) How IT architects and business architects can work together to get the ship back on course and keep it there. Connect William Ulrich Website | LinkedIn | Business Architecture Guild Neal McWhorter Website | LinkedIn | Business Architecture Group on OMG Coming Soon Bob Hensle, Director, Oracle Enterprise Architecture Group, discusses the recently launched IT Solutions from Oracle (ITSO) library of documents. Excerpts from a recent OTN Architect Community Virtual Meet-up. Stay tuned: RSS del.icio.us Tags: business architecture,enterprise architecture,arch2arch,archbeat,podcast,business transformation,oracle,oracle technology network Technorati Tags: business architecture,enterprise architecture,arch2arch,archbeat,podcast,business transformation,oracle,oracle technology network

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• CIO Magazine's State of the CIO and its Impact on Your EA

  - by david.olivencia(at)oracle.com

  CIO Magazine today released its State of the CIO report.  As most Enterpise Architects report to (or report very close to) the CIO, the report provides interesting insights as to where most CIOs minds and priorities are.  The information will allow Enterprise Architects  to better align plans, approaches, models, and stratagies. The report's summary can be found here:  http://assets.cio.com/documents/cache/pdfs/2011/dec15_gatefold.pdf   Specifically the article highlights: * How IT Makes A Difference * Critical Leadership Skills * Business Focused CIOs * Areas of Increasing Responsibility * Plans for 2015   Enterprise Architects what insights from this report will alter they way you successfully lead in 2011?   David Olivencia | Solution Director, Enterprise Architecture & Exa ServicesOracle Consulting Latin America and Caribbean

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• Help me classify this type of software architecture

  - by Alex Burtsev

  I read some books about software architecture as we are using it in our project but I can't classify the architecture properly. It's some kind of Enterprise Architecture, but what exactly... SOA, ESB (Enterprise Service Bus), Message Bus, Event Driven SOA, there are so many terms in Enterprise software.... The system is based on custom XML messages exchanges between services. (it's not SOAP, nor any other XML based standard, just plain XML). These messages represent notifications (state changes) that are applied to the Domain model, (it's not like CRUD when you serialize the whole domain object, and pass it to service for persistence). The system is centralized, and system participants use different programming languages and frameworks (c++, c#, java). Also, messages are not processed at the moment they are received as they are stored first and the treatment begins on demand. It's called SOA+EDA -:)

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• What does the -R flag do for chflags?

  - by ralphthemagician

  I'm not clear on exactly what the -R flag does for chflags. I was wondering if someone might be able to help me. The man page says this: Recurse: Change the file flags of file hierarchies rooted in the files instead of just the files themselves. I don't understand what that means. Can someone tell me what the difference would be between chflags -R hidden and just chflags hidden? There's an online man page here for reference: http://ss64.com/osx/chflags.html

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• SQL Server Express Uninstall / Enterprise Install Issue

  - by user19049

  I need help installing SQL Server 2005 Enterprise edition.I really need to remove the current SQL Server 2005.installation that is no longer on my Add/Remove software list but yet still installed on the machine. I tried to uninstall SQL Server Express / Developer Edition but it only removed it from my Add/Remove software list. It returned immediately but did NOT actually remove the product. (I'm now in a bad state.) i tried to install SQL Server 2005 Enterprise and its says I'm blocked as all components are already installed - but they are not. How can I remove all instance of previous one and install clean Enterprise edition on my server Thanks

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• Multi screen RDP in Windows 8.1 Enterprise

  - by bgs264

  I have just flattened my machine and installed Windows 8.1 Enterprise Edition. I have used the Hyper-V to create a virtual machine for my Software Development stuff, on my VM I have also installed Windows 8.1 Enterprise Edition. I want to have two screen support when using this VM (not using /span) Both the Hyper-V viewer and Remote Desktop give me a tickbox to "Use all my monitors for the remote session". However even with it ticked (and even when I tried the /multimon switch on the command line), I only get a single screen. Am I missing something - this should be supported in Enterprise edition, right? Is there some extra config I need to do on the RDP host? Forgive me if it's an obvious question, I'm more a developer and just stumbling through ;-) Cheers! Ben

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• javax.naming.NameAlreadyBoundException: in glassfish server v2

  - by Nila

  Hi! I'm implementing stateless session bean ejb3 in glassfish server using netbeans. First time, it is working properly. Later, I'm getting the exception as follows: LDR5012: Jndi name conflict found in [SampleEjb3]. Jndi name [Lulu.HellostatelessRemote] for bean [HellostatelessBean] is already in use. LDR5013: Naming exception while creating EJB container: javax.naming.NameAlreadyBoundException: Use rebind to override at com.sun.enterprise.naming.TransientContext.doBindOrRebind(TransientContext.java:292) at com.sun.enterprise.naming.TransientContext.bind(TransientContext.java:232) at com.sun.enterprise.naming.SerialContextProviderImpl.bind(SerialContextProviderImpl.java:111) at com.sun.enterprise.naming.LocalSerialContextProviderImpl.bind(LocalSerialContextProviderImpl.java:90) at com.sun.enterprise.naming.SerialContext.bind(SerialContext.java:461) at com.sun.enterprise.naming.SerialContext.bind(SerialContext.java:476) at javax.naming.InitialContext.bind(InitialContext.java:404) at com.sun.enterprise.naming.NamingManagerImpl.publishObject(NamingManagerImpl.java:237) at com.sun.enterprise.naming.NamingManagerImpl.publishObject(NamingManagerImpl.java:190) at com.sun.ejb.containers.BaseContainer.initializeHome(BaseContainer.java:1015) at com.sun.ejb.containers.StatelessSessionContainer.initializeHome(StatelessSessionContainer.java:232) at com.sun.ejb.containers.ContainerFactoryImpl.createContainer(ContainerFactoryImpl.java:654) at com.sun.enterprise.server.AbstractLoader.loadEjbs(AbstractLoader.java:536) at com.sun.enterprise.server.ApplicationLoader.doLoad(ApplicationLoader.java:188) at com.sun.enterprise.server.TomcatApplicationLoader.doLoad(TomcatApplicationLoader.java:126) at com.sun.enterprise.server.AbstractLoader.load(AbstractLoader.java:244) at com.sun.enterprise.server.AbstractManager.load(AbstractManager.java:225) at com.sun.enterprise.server.ApplicationLifecycle.onStartup(ApplicationLifecycle.java:217) at com.sun.enterprise.server.ApplicationServer.onStartup(ApplicationServer.java:442) at com.sun.enterprise.server.ondemand.OnDemandServer.onStartup(OnDemandServer.java:120) at com.sun.enterprise.server.PEMain.run(PEMain.java:411) at com.sun.enterprise.server.PEMain.main(PEMain.java:338) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.sun.enterprise.server.PELaunch.main(PELaunch.java:412) Then, I'll remove the ejb module from the glassfish server and I'll restart the server. It will work then. So, how to overcome this problem..

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• How to create a new WCF/MVC/jQuery application from scratch

  - by pjohnson

  As a corporate developer by trade, I don't get much opportunity to create from-the-ground-up web sites; usually it's tweaks, fixes, and new functionality to existing sites. And with hobby sites, I often don't find the challenges I run into with enterprise systems; usually it's starting from Visual Studio's boilerplate project and adding whatever functionality I want to play around with, rarely deploying outside my own machine. So my experience creating a new enterprise-level site was a bit dated, and the technologies to do so have come a long way, and are much more ready to go out of the box. My intention with this post isn't so much to provide any groundbreaking insights, but to just tie together a lot of information in one place to make it easy to create a new site from scratch. Architecture One site I created earlier this year had an MVC 3 front end and a WCF 4-driven service layer. Using Visual Studio 2010, these project types are easy enough to add to a new solution. I created a third Class Library project to store common functionality the front end and services layers both needed to access, for example, the DataContract classes that the front end uses to call services in the service layer. By keeping DataContract classes in a separate project, I avoided the need for the front end to have an assembly/project reference directly to the services code, a bit cleaner and more flexible of an SOA implementation. Consuming the service Even by this point, VS has given you a lot. You have a working web site and a working service, neither of which do much but are great starting points. To wire up the front end and the services, I needed to create proxy classes and WCF client configuration information. I decided to use the SvcUtil.exe utility provided as part of the Windows SDK, which you should have installed if you installed VS. VS also provides an Add Service Reference command since the .NET 1.x ASMX days, which I've never really liked; it creates several .cs/.disco/etc. files, some of which contained hardcoded URL's, adding duplicate files (*1.cs, *2.cs, etc.) without doing a good job of cleaning up after itself. I've found SvcUtil much cleaner, as it outputs one C# file (containing several proxy classes) and a config file with settings, and it's easier to use to regenerate the proxy classes when the service changes, and to then maintain all your configuration in one place (your Web.config, instead of the Service Reference files). I provided it a reference to a copy of my common assembly so it doesn't try to recreate the data contract classes, had it use the type List<T> for collections, and modified the output files' names and .NET namespace, ending up with a command like: svcutil.exe /l:cs /o:MyService.cs /config:MyService.config /r:MySite.Common.dll /ct:System.Collections.Generic.List`1 /n:*,MySite.Web.ServiceProxies http://localhost:59999/MyService.svc I took the generated MyService.cs file and drop it in the web project, under a ServiceProxies folder, matching the namespace and keeping it separate from classes I coded manually. Integrating the config file took a little more work, but only needed to be done once as these settings didn't often change. A great thing Microsoft improved with WCF 4 is configuration; namely, you can use all the default settings and not have to specify them explicitly in your config file. Unfortunately, SvcUtil doesn't generate its config file this way. If you just copy & paste MyService.config's contents into your front end's Web.config, you'll copy a lot of settings you don't need, plus this will get unwieldy if you add more services in the future, each with its own custom binding. Really, as the only mandatory settings are the endpoint's ABC's (address, binding, and contract) you can get away with just this: <system.serviceModel>  <client>    <endpoint address="http://localhost:59999/MyService.svc" binding="wsHttpBinding" contract="MySite.Web.ServiceProxies.IMyService" />  </client></system.serviceModel> By default, the services project uses basicHttpBinding. As you can see, I switched it to wsHttpBinding, a more modern standard. Using something like netTcpBinding would probably be faster and more efficient since the client & service are both written in .NET, but it requires additional server setup and open ports, whereas switching to wsHttpBinding is much simpler. From an MVC controller action method, I instantiated the client, and invoked the method for my operation. As with any object that implements IDisposable, I wrapped it in C#'s using() statement, a tidy construct that ensures Dispose gets called no matter what, even if an exception occurs. Unfortunately there are problems with that, as WCF's ClientBase<TChannel> class doesn't implement Dispose according to Microsoft's own usage guidelines. I took an approach similar to Technology Toolbox's fix, except using partial classes instead of a wrapper class to extend the SvcUtil-generated proxy, making the fix more seamless from the controller's perspective, and theoretically, less code I have to change if and when Microsoft fixes this behavior. User interface The MVC 3 project template includes jQuery and some other common JavaScript libraries by default. I updated the ones I used to the latest versions using NuGet, available in VS via the Tools > Library Package Manager > Manage NuGet Packages for Solution... > Updates. I also used this dialog to remove packages I wasn't using. Given that it's smart enough to know the difference between the .js and .min.js files, I was hoping it would be smart enough to know which to include during build and publish operations, but this doesn't seem to be the case. I ended up using Cassette to perform the minification and bundling of my JavaScript and CSS files; ASP.NET 4.5 includes this functionality out of the box. The web client to web server link via jQuery was easy enough. In my JavaScript function, unobtrusively wired up to a button's click event, I called $.ajax, corresponding to an action method that returns a JsonResult, accomplished by passing my model class to the Controller.Json() method, which jQuery helpfully translates from JSON to a JavaScript object.$.ajax calls weren't perfectly straightforward. I tried using the simpler $.post method instead, but ran into trouble without specifying the contentType parameter, which $.post doesn't have. The url parameter is simple enough, though for flexibility in how the site is deployed, I used MVC's Url.Action method to get the URL, then sent this to JavaScript in a JavaScript string variable. If the request needed input data, I used the JSON.stringify function to convert a JavaScript object with the parameters into a JSON string, which MVC then parses into strongly-typed C# parameters. I also specified "json" for dataType, and "application/json; charset=utf-8" for contentType. For success and error, I provided my success and error handling functions, though success is a bit hairier. "Success" in this context indicates whether the HTTP request succeeds, not whether what you wanted the AJAX call to do on the web server was successful. For example, if you make an AJAX call to retrieve a piece of data, the success handler will be invoked for any 200 OK response, and the error handler will be invoked for failed requests, e.g. a 404 Not Found (if the server rejected the URL you provided in the url parameter) or 500 Internal Server Error (e.g. if your C# code threw an exception that wasn't caught). If an exception was caught and handled, or if the data requested wasn't found, this would likely go through the success handler, which would need to do further examination to verify it did in fact get back the data for which it asked. I discuss this more in the next section. Logging and exception handling At this point, I had a working application. If I ran into any errors or unexpected behavior, debugging was easy enough, but of course that's not an option on public web servers. Microsoft Enterprise Library 5.0 filled this gap nicely, with its Logging and Exception Handling functionality. First I installed Enterprise Library; NuGet as outlined above is probably the best way to do so. I needed a total of three assembly references--Microsoft.Practices.EnterpriseLibrary.ExceptionHandling, Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.Logging, and Microsoft.Practices.EnterpriseLibrary.Logging. VS links with the handy Enterprise Library 5.0 Configuration Console, accessible by right-clicking your Web.config and choosing Edit Enterprise Library V5 Configuration. In this console, under Logging Settings, I set up a Rolling Flat File Trace Listener to write to log files but not let them get too large, using a Text Formatter with a simpler template than that provided by default. Logging to a different (or additional) destination is easy enough, but a flat file suited my needs. At this point, I verified it wrote as expected by calling the Microsoft.Practices.EnterpriseLibrary.Logging.Logger.Write method from my C# code. With those settings verified, I went on to wire up Exception Handling with Logging. Back in the EntLib Configuration Console, under Exception Handling, I used a LoggingExceptionHandler, setting its Logging Category to the category I already had configured in the Logging Settings. Then, from code (e.g. a controller's OnException method, or any action method's catch block), I called the Microsoft.Practices.EnterpriseLibrary.ExceptionHandling.ExceptionPolicy.HandleException method, providing the exception and the exception policy name I had configured in the Exception Handling Settings. Before I got this configured correctly, when I tried it out, nothing was logged. In working with .NET, I'm used to seeing an exception if something doesn't work or isn't set up correctly, but instead working with these EntLib modules reminds me more of JavaScript (before the "use strict" v5 days)--it just does nothing and leaves you to figure out why, I presume due in part to the listener pattern Microsoft followed with the Enterprise Library. First, I verified logging worked on its own. Then, verifying/correcting where each piece wires up to the next resolved my problem. Your C# code calls into the Exception Handling module, referencing the policy you pass the HandleException method; that policy's configuration contains a LoggingExceptionHandler that references a logCategory; that logCategory should be added in the loggingConfiguration's categorySources section; that category references a listener; that listener should be added in the loggingConfiguration's listeners section, which specifies the name of the log file. One final note on error handling, as the proper way to handle WCF and MVC errors is a whole other very lengthy discussion. For AJAX calls to MVC action methods, depending on your configuration, an exception thrown here will result in ASP.NET'S Yellow Screen Of Death being sent back as a response, which is at best unnecessarily and uselessly verbose, and at worst a security risk as the internals of your application are exposed to potential hackers. I mitigated this by overriding my controller's OnException method, passing the exception off to the Exception Handling module as above. I created an ErrorModel class with as few properties as possible (e.g. an Error string), sending as little information to the client as possible, to both maximize bandwidth and mitigate risk. I then return an ErrorModel in JSON format for AJAX requests: if (filterContext.HttpContext.Request.IsAjaxRequest()){    filterContext.Result = Json(new ErrorModel(...));    filterContext.ExceptionHandled = true;} My $.ajax calls from the browser get a valid 200 OK response and go into the success handler. Before assuming everything is OK, I check if it's an ErrorModel or a model containing what I requested. If it's an ErrorModel, or null, I pass it to my error handler. If the client needs to handle different errors differently, ErrorModel can contain a flag, error code, string, etc. to differentiate, but again, sending as little information back as possible is ideal. Summary As any experienced ASP.NET developer knows, this is a far cry from where ASP.NET started when I began working with it 11 years ago. WCF services are far more powerful than ASMX ones, MVC is in many ways cleaner and certainly more unit test-friendly than Web Forms (if you don't consider the code/markup commingling you're doing again), the Enterprise Library makes error handling and logging almost entirely configuration-driven, AJAX makes a responsive UI more feasible, and jQuery makes JavaScript coding much less painful. It doesn't take much work to get a functional, maintainable, flexible application, though having it actually do something useful is a whole other matter.

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• Larry Ellison is szerepel az Iron Man 2 c. filmben

  - by Fekete Zoltán

  Az Oracle CEO-ja, Larry Ellison is szerepel az Iron Man 2 címu mozifilmben! :) Tehát nem csupán Scarlett Johansson bájaiban gyönyörködhetünk, hanem az Oracle elso embere, Larry Ellison is megjelenik a színen. Az Oracle-nek az Iron Man 2 filmhez kapcsolódó anyagai itt találhatók. Itt meg tekintheto a film trailere is, illetve háttérképek nagy méretben. Légy Te is szuperhíró! Legyen szuperhos! (sot, Superhero :) ) - innovatív Oracle megoldásával

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• Why are the man pages for gvfs-commands not in Ubuntu?

  - by Pili Garcia

  These are the man pages for gvfs-cat gvfs-less gvfs-monitor-dir gvfs-move gvfs-rm gvfs-trash gvfs-copy gvfs-ls gvfs-monitor-file gvfs-open gvfs-save gvfs-tree gvfs-info gvfs-mkdir gvfs-mount gvfs-rename gvfs-set-attribute http://www.unix.com/man-pages.php?query=gvfs-info&apropos=0&section=1&os=opensolaris Every year I see that there are more commands without manpage nor apropose description, nothing! Is that the path?

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• Man pages for libvlc

  - by mawia

  Hi! all. Though I am not sure wether this question belongs to here but pardon me if not so. Can you people guide me to the manual page of libvlc functions like(just give a kind of pointer where these functions are described in detail) void libvlc_playlist_pause( libvlc_instance *, libvlc_exception ) mtime_t libvlc_input_get_length( libvlc_input_t *, libvlc_exception ) mtime_t libvlc_input_get_time( libvlc_input_t *, libvlc_exception ) void libvlc_input_set_time( libvlc_input_t *, mtime_t , libvlc_exception ) float libvlc_input_get_position( libvlc_input_t *, libvlc_exception ) void libvlc_input_set_position( libvlc_input_t *, float , libvlc_exception ) void libvlc_set_rate( libvlc_input_t *, float rate, libvlc_exception ) float libvlc_get_rate( libvlc_input_t *, libvlc_exception ) libvlc_input_get_information( libvlc_input_t *, libvlc_exception ) In particular can you please describe the functioning of libvlc_playlist_pause.I am using this in my aplication to run a video stream.My video is running but since video file is coming over a network I need to pause the player for a particular amount till enough data is buffered. With regards Mawia

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• is magento overkill for a one-man webshop?

  - by Rick J

  I have been looking at magento for a while and I think I have a decent handle on how to use/customize it. I have a client that wants a webshop , this is just a small business that sells a few products and just supports one language. I was wondering if using magento will be an overkill for a simple webshop , in case I cant help them to make future changes tp the webshop, the people running their business might have to do it. But it looks like magento is made for people with some technical know how (lots of xml editing etc).. So should i go for magento or a simpler solution like osCommerce or maybe even a simple custom solution. Would like to hear your opinions!

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• man kaio: No manual entry for kaio.

  - by Daniel

  I trussed a process, and they are lines as below. And I want to know the definition of kaio, but there is no manual entry for kaio, so whether can I get the definition? /1: kaio(AIOWRITE, 259, 0x3805B2A00, 8704, 0x099C9E000755D3C0) = 0 /1: kaio(AIOWRITE, 259, 0x380CF9200, 14336, 0x099CC0000755D5B8) = 0 /1: kaio(AIOWRITE, 259, 0x381573600, 8704, 0x099CF8000755D7B0) = 0 /1: kaio(AIOWRITE, 259, 0x381ACA600, 8192, 0x099D1A000755D9A8) = 0 /1: kaio(AIOWAIT, 0xFFFFFFFF7FFFD620) = 4418032576 /1: timeout: 600.000000 sec /1: kaio(AIOWAIT, 0xFFFFFFFF7FFFD620) = 4418033080 /1: timeout: 600.000000 sec /1: kaio(AIOWAIT, 0xFFFFFFFF7FFFD620) = 4418033584 /1: timeout: 600.000000 sec

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• Man machine interface command syntax and parsing

  - by idimba

  What I want is to add possibility to interact with application, and be able to extract information from application or event ask it to change some states. For that purpose I though of building cli utility. The utility will connect to the application and send user commands (one line strings) to the application and wait for response from the application. The command should contain: - command name (e.g. display-session-table/set-log-level etc.) - optionally command may have several arguments (e.g. log-level=10) The question to choose syntax and to learn parse it fast and correctly. I don't want to reinvent the whell, so maybe there's already an answer out there.

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• Can I update an iOS Enterprise App in the background like an App Store app can?

  - by lehn0058

  I have an iOS enterprise app that we are wirelessly distributing to our devices. Currently the app polls our server once a day to see if there is an app update. If there is, we try to install it by having the app call the following code: NSURL *installUrl = [NSURL URLWithString:[NSString stringWithFormat:@"itms-services://?action=download-manifest&url=%@", plistUrl]]; [[UIApplication sharedApplication] openURL:installUrl]; This causes the app to prompt the user with an alert dialog to install the update. If they click install, the app closes and the update is downloaded and installed. I am wondering if there is anything for enterprise apps for iOS 7 similar to the AppStore's automatic updates? I would like to be able to update our app without the user having to press an update button and be able to update at a time when the user won't have to wait for it to install.

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• Poor man's "lexer" for C#

  - by Paul Hollingsworth

  I'm trying to write a very simple parser in C#. I need a lexer -- something that lets me associate regular expressions with tokens, so it reads in regexs and gives me back symbols. It seems like I ought to be able to use Regex to do the actual heavy lifting, but I can't see an easy way to do it. For one thing, Regex only seems to work on strings, not streams (why is that!?!?). Basically, I want an implementation of the following interface: interface ILexer : IDisposable { /// <summary> /// Return true if there are more tokens to read /// </summary> bool HasMoreTokens { get; } /// <summary> /// The actual contents that matched the token /// </summary> string TokenContents { get; } /// <summary> /// The particular token in "tokenDefinitions" that was matched (e.g. "STRING", "NUMBER", "OPEN PARENS", "CLOSE PARENS" /// </summary> object Token { get; } /// <summary> /// Move to the next token /// </summary> void Next(); } interface ILexerFactory { /// <summary> /// Create a Lexer for converting a stream of characters into tokens /// </summary> /// <param name="reader">TextReader that supplies the underlying stream</param> /// <param name="tokenDefinitions">A dictionary from regular expressions to their "token identifers"</param> /// <returns>The lexer</returns> ILexer CreateLexer(TextReader reader, IDictionary<string, object> tokenDefinitions); } So, pluz send the codz... No, seriously, I am about to start writing an implementation of the above interface yet I find it hard to believe that there isn't some simple way of doing this in .NET (2.0) already. So, any suggestions for a simple way to do the above? (Also, I don't want any "code generators". Performance is not important for this thing and I don't want to introduce any complexity into the build process.)

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• ???????????????!??????????????

  - by Yusuke.Yamamoto

  ????? ??:2010/12/01 ??:?????? ????????????????????????????????????????????????????????????????IT??????????????????????????????????????????????????????????????????????????????????????????????Oracle Enterprise Manager 11g????????????????????? ????/ Oracle VM?Enterprise Manager?????????/ ????????????????????????????????????????????/ ???????????????&?????????????????/?????????????????????????????????????????? ????????? ????????????????? http://www.oracle.com/technology/global/jp/ondemand/otn-seminar/pdf/20101201_EM_VM_Managementv2.pdf

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• ??????Exadata V2???????????????????????

  - by mamoru.kobayashi

  ??????Exadata V2??????????????????????? ???????????Oracle Exadata Version 2????????????????????????????????????????????????????? ?Sun Oracle Database Machine*??????????????????????????????????????·??·????????????????????????????????????????????????????????IT????????????????Oracle Exadata Version 2??????Oracle Business Intelligence Enterprise Edition???Oracle Enterprise Manager?????????? *?Sun Oracle Database Machine???Oracle Exadata Version 2???????????????·?????? ????????????????

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• Import database: SQL Server 2005 Express to SQL Server 2008 Enterprise

  - by Khou

  I have two servers 1 x SQL Server 2005 Express and 1 x SQL Server 2008 Enterprise How can I move/import my database from SQL Server 2005 Express to SQL Server 2008 Enterprise? (BACKUP SQL SERVER 2005 and RESTORE to SQL Server 2008, would that work?)

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• In-Place DC Upgrade from Server 2003R2 Standard to 2008 Enterprise

  - by Yadhu Tony

  We have a Domain controller in server 2008 Enterprise and Additional DC in server 2003 R2. Now I need to upgrade Additional Domain controller to Server 2008 Enterprise and raise the domain functional level to 2008. The DC is running with Active Directory, DNS and DHCP. The server is installed in VMware ESXi 4.0. Please guide me to carry out the upgrade. Also I want to know about the possible risk of in-place upgrade, if any.

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• Wiki: Irritating phrases you are subjected to in "the enterprise"

  - by username

  I am "deploying" a very silly question, but it could be amusing. What especially irritating "business" terminology are you subjected to at work? The one that annoys me most actually is "the enterprise" which apparently makes you sound more dangerous than just "enterprise"

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