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  • Architectural Composition Languages

    - by C. Lawrence Wenham
    Recently stumbled upon this paper (PDF) talking about ACLs, or Architectural Composition Languages. They're a fusion of two earlier lines of research: Architectural Definition Languages (such as UML) and Object Composition Languages (such as XAML, WWF, or scripting languages). The goal of an ACL is to have a high-level description of a program's architecture which can also be compiled into a runnable program. The high-level description assists automated analysis, while the 'executability' means changes can be tested immediately. You would still author the components of the program in a conventional programming language (C, Java, Python, etc), but they would be composed into a complete program by the ACL. One of the expected benefits is that a program can be ported to a different platform by swapping in "similar but different" components. I've been hankering for something like this for a long time (see this answer I gave on a StackOverflow question a few years ago). The paper mentions that the researchers were working on a language called ACL/1 that initially targeted Java, but would be ported to support .Net as well. However, I can't find any more mention of ACL/1 anywhere. Has there been any more work done on this? Are there any other implementations of the ACL concept that are available for use or experimentation?

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  • Ubuntu 14.04 : Lost my sound randomly tried a few commands and I think I failed

    - by Marc-Antoine Théberge
    I lost my sound the other day and I tried to delete pulseaudio then reinstall, then I tried to delete it and install alsa, It did not work and I had to reinstall everything; overall bad idea... now I can't have any sound. Should I do a fresh install? I don't know how to boot an usb drive with GRUB... Here's my sysinfo System information report, generated by Sysinfo: 2014-05-28 05:45:58 http://sourceforge.net/projects/gsysinfo SYSTEM INFORMATION Running Ubuntu Linux, the Ubuntu 14.04 (trusty) release. GNOME: 3.8.4 (Ubuntu 2014-03-17) Kernel version: 3.13.0-27-generic (#50-Ubuntu SMP Thu May 15 18:08:16 UTC 2014) GCC: 4.8 (i686-linux-gnu) Xorg: 1.15.1 (16 April 2014 01:40:08PM) (16 April 2014 01:40:08PM) Hostname: mark-laptop Uptime: 0 days 11 h 43 min CPU INFORMATION GenuineIntel, Intel(R) Atom(TM) CPU N270 @ 1.60GHz Number of CPUs: 2 CPU clock currently at 1333.000 MHz with 512 KB cache Numbering: family(6) model(28) stepping(2) Bogomips: 3192.13 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl est tm2 ssse3 xtpr pdcm movbe lahf_lm dtherm MEMORY INFORMATION Total memory: 2007 MB Total swap: 1953 MB STORAGE INFORMATION SCSI device - scsi0 Vendor: ATA Model: ST9160310AS HARDWARE INFORMATION MOTHERBOARD Host bridge Intel Corporation Mobile 945GSE Express Memory Controller Hub (rev 03) Subsystem: ASUSTeK Computer Inc. Device 8340 PCI bridge(s) Intel Corporation NM10/ICH7 Family PCI Express Port 1 (rev 02) (prog-if 00 [Normal decode]) Intel Corporation NM10/ICH7 Family PCI Express Port 2 (rev 02) (prog-if 00 [Normal decode]) Intel Corporation NM10/ICH7 Family PCI Express Port 4 (rev 02) (prog-if 00 [Normal decode]) Intel Corporation 82801 Mobile PCI Bridge (rev e2) (prog-if 01 [Subtractive decode]) Intel Corporation NM10/ICH7 Family PCI Express Port 1 (rev 02) (prog-if 00 [Normal decode]) Intel Corporation NM10/ICH7 Family PCI Express Port 2 (rev 02) (prog-if 00 [Normal decode]) Intel Corporation NM10/ICH7 Family PCI Express Port 4 (rev 02) (prog-if 00 [Normal decode]) Intel Corporation 82801 Mobile PCI Bridge (rev e2) (prog-if 01 [Subtractive decode]) ISA bridge Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 02) Subsystem: ASUSTeK Computer Inc. Device 830f IDE interface Intel Corporation 82801GBM/GHM (ICH7-M Family) SATA Controller [IDE mode] (rev 02) (prog-if 80 [Master]) Subsystem: ASUSTeK Computer Inc. Device 830f GRAPHIC CARD VGA controller Intel Corporation Mobile 945GSE Express Integrated Graphics Controller (rev 03) (prog-if 00 [VGA controller]) Subsystem: ASUSTeK Computer Inc. Device 8340 SOUND CARD Multimedia controller Intel Corporation NM10/ICH7 Family High Definition Audio Controller (rev 02) Subsystem: ASUSTeK Computer Inc. Device 831a NETWORK Ethernet controller Qualcomm Atheros AR8121/AR8113/AR8114 Gigabit or Fast Ethernet (rev b0) Subsystem: ASUSTeK Computer Inc. Device 8324

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  • Performance of concurrent software on multicore processors

    - by Giorgio
    Recently I have often read that, since the trend is to build processors with multiple cores, it will be increasingly important to have programming languages that support concurrent programming in order to better exploit the parallelism offered by these processors. In this respect, certain programming paradigms or models are considered well-suited for writing robust concurrent software: Functional programming languages, e.g. Haskell, Scala, etc. The actor model: Erlang, but also available for Scala / Java (Akka), C++ (Theron, Casablanca, ...), and other programming languages. My questions: What is the state of the art regarding the development of concurrent applications (e.g. using multi-threading) using the above languages / models? Is this area still being explored or are there well-established practices already? Will it be more complex to program applications with a higher level of concurrency, or is it just a matter of learning new paradigms and practices? How does the performance of highly concurrent software compare to the performance of more traditional software when executed on multiple core processors? For example, has anyone implemented a desktop application using C++ / Theron, or Java / Akka? Was there a boost in performance on a multiple core processor due to higher parallelism?

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  • How dependecy injection increases coupling?

    - by B?????
    Reading wiki page on Dependency injection, the disadvantages section tells this : Dependency injection increases coupling by requiring the user of a subsystem to provide for the needs of that subsystem. with a link to an article against DI. What DI does is that it makes a class use the interface instead of the concrete implementation. That should be decreased coupling, no? So, what am I missing? How is dependency injection increasing coupling between classes?

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  • Display Driver Issue on an hp TX2-1160ea Notebook

    - by Sam
    I'm new to Linux and recently switched to Ubuntu 11.04 due to my project requirement. My laptop has been freezing and going to black screen of death when I run anything related to display (Share desktop, stream video, etc). Today I went through the Ubuntu forum to install the appropriate graphic driver and, after doing it, I rebooted my PC. It gave an error before login saying "select the recovery mode" and after clicking OK, it didn't give the same error on reboot but I've lost the 11.04 graphical interface and all I see is the interface of Ubuntu v10 with slow visuals (even scrolling up/down on browser is really slow). For the reference, here's a desktop screenshot so that you can understand the situation. Also the laptop is overheating. How can I fix this problem? How can i get the Ubuntu 11.04 view back? I also tried Google, but couldn't find any issue like this. Some general Information: Laptop: HP TouchSmart TX2-1160ea Processor: AMD Turion TX2 Memory: 4GB OS: Ubuntu 11.04 Some debugging information:: $ report-hw | grep controller lspci -knn: 00:11.0 SATA controller [0106]: ATI Technologies Inc SB7x0/SB8x0/SB9x0 SATA Controller [AHCI mode] [1002:4391] lspci -knn: 00:14.3 ISA bridge [0601]: ATI Technologies Inc SB7x0/SB8x0/SB9x0 LPC host controller [1002:439d] lspci -knn: 01:05.0 VGA compatible controller [0300]: ATI Technologies Inc RS780M/RS780MN [Radeon HD 3200 Graphics] [1002:9612] lspci -knn: 08:00.0 Network controller [0280]: Broadcom Corporation BCM4322 802.11a/b/g/n Wireless LAN Controller [14e4:432b] (rev 01) lspci -knn: 09:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 02) And: $ dpkg -l '*fglrx*' Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Description +++-==============-==============-============================================ ii fglrx 2:8.840-0ubunt Video driver for the ATI graphics accelerato ii fglrx-amdcccle 2:8.840-0ubunt Catalyst Control Center for the ATI graphics un fglrx-control <none> (no description available) un fglrx-control- <none> (no description available) ii fglrx-dev 2:8.840-0ubunt Video driver for the ATI graphics accelerato un fglrx-driver <none> (no description available) un fglrx-driver-d <none> (no description available) un fglrx-kernel-s <none> (no description available) un fglrx-modalias <none> (no description available) un xfree86-driver <none> (no description available) un xfree86-driver <none> (no description available) un xorg-driver-fg <none> (no description available) un xorg-driver-fg <none> (no description available) If you need any more information that could help, just ask.

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  • VirtualBox Error

    - by Moein7tl
    I wanna install OS on VirtualBox,but when I wanna to install it,it will return errors: Failed to open a session for the virtual machine Arch. Failed to load VMMR0.r0 (VERR_SUPLIB_WORLD_WRITABLE). Unknown error creating VM (VERR_SUPLIB_WORLD_WRITABLE). Details: Result Code: NS_ERROR_FAILURE (0x80004005) Component: Console Interface: IConsole {515e8e8d-f932-4d8e-9f32-79a52aead882} I'm using ubuntu 11.04. How should I solve it?

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  • How to sync audio files with Logitech media server in MAC OS?

    - by Abhishek
    I want to customize the Logitech Media Server (web interface on localhost) so that N number of DIFFERENT audio files will start to play at the same time on N number of wifi receivers, each file on a different receiver. Currently, the server will sync only 1 track to N number(amount) of receivers. Is it possible with Logitech media server is open source. How can I able to do this? can you explain me sample code?

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  • Android&ndash;Finding your SDK debug certificate MD5 fingerprint using Keytool

    - by Bill Osuch
    I recently upgraded to a new development machine, which means the certificate used to sign my applications during debug changed. Under most circumstances you’ll never notice a difference, but if you’re developing apps using Google’s Maps API you’ll find that your old API key no longer works with the new certificate fingerprint. Google's instructions walk you through retrieving the MD5 fingerprint of your SDK debug certificate - the certificate that you’re probably signing your apps with before publishing, but it doesn't talk much about the Keytool command. The thing to remember is that Keytool is part of Java, not the Android SDK, so you'll never find it searching through your Android and Eclipse directories. Mine is located in C:\Program Files\Java\jdk1.7.0_02\bin so you should find yours somewhere similar. From a command prompt, navigate to this directory and type: keytool -v -list -keystore "C:/Documents and Settings/<user name>/.android/debug.keystore" That’s assuming the path to your debug certificate is in the typical location. If this doesn’t work, you can find out where it’s located in Eclipse by clicking Window –> Preferences –> Android –> Build. There's no need to use the additional commands shown on Google's page. You'll be prompted for a password, just hit enter. The last line shown, Certificate fingerprint, is the key you'll give Google to generate your new Maps API key. Technorati Tags: Android Mapping

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  • ApiChange Corporate Edition

    - by Alois Kraus
    In my inital announcement I could only cover a small subset what ApiChange can do for you. Lets look at how ApiChange can help you to fix bugs due to wrong usage of an Api within a fraction of time than it would take normally. It happens that software is tested and some bugs show up. One bug could be …. : We get way too man log messages during our test run. Now you have the task to find the most frequent messages and eliminate the Log calls from the source code. But what about the myriads other log calls? How can we check that the distribution of log calls is nearly equal across all developers? And if not how can we contact the developer to check his code? ApiChange can help you too connect these loose ends. It combines several information silos into one cohesive view. The picture below shows how it is able to fill the gaps. The public version does currently “only” parse the binaries and pdbs to give you for a –whousesmethod query the following colums: If it happens that you have Rational ClearCase (a source control system) in your development shop and an Active Directory in place then ApiChange will try to determine from the source file which was determined from the pdb the last check in user which should be present in your Active Directory. From there it is only a small hop to an LDAP query to your AD domain or the GC (Global Catalog) to get from the user name his Full name Email Phone number Department …. ApiChange will append this additional data all of your query results which contain source files if you add the –fileinfo option. As I said this is currently not enabled by default since the AD domain needs to be configured which are currently only some hard coded values in the SiteConstants.cs source file of ApiChange.Api.dll. Once you got this data you can generate metrics based on source file, developer, assembly, … and add additional data by drag and drop directly into the pivot tables inside Excel. This allows you to e.g. to generate a report which lists the source files with most log calls in descending order along with the developer name and email in the pivot table. Armed with this knowledge you can take meaningful measures e.g. to ask the developer if the huge number of log calls in this source file can be optimized. I am aware that this is a very specific scenario but it is a huge time saver when you are able to fill the missing gaps of information. ApiChange does this in an extensible way. namespace ApiChange.ExternalData {     public interface IFileInformationProvider     {         UserInfo GetInformationFromFile(string fileName);     } } It defines an interface where you can implement your custom information provider to close the gap between source control system and the real person I have to send an email to ask if his code needs a closer inspection.

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  • Translating Your Customizations

    - by Richard Bingham
    This blog post explains the basics of translating the customizations you can make to Fusion Applications products, with the inclusion of information for both composer-based customizations and the generic design-time customizations done via JDeveloper. Introduction Like most Oracle Applications, Fusion Applications installs on-premise with a US-English base language that is, in Release 7, supported by the option to add up to a total of 22 additional language packs (In Oracle Cloud production environments languages are pre-installed already). As such many organizations offer their users the option of working with their local language, and logically that should also apply for any customizations as well. Composer-based UI Customizations Customizations made in Page Composer take into consideration the session LOCALE, as set in the user preferences screen, during all customization work, and stores the customization in the MDS repository accordingly. As such the actual new or changed values used will only apply for the same language under which the customization was made, and text for any other languages requires a separate upload. See the Resource Bundles section below, which incidentally also applies to custom UI changes done in JDeveloper. You may have noticed this when you select the “Select Text Resource” menu option when editing the text on a page. Using this ensures that the resource bundles are used, whereas if you define a static value in Expression Builder it will never be available for translation. Notice in the screenshot below the “What’s New” custom value I have already defined using the ‘Select Text Resource’ feature is internally using the adfBundle groovy function to pull the custom value for my key (RT_S_1) from the ComposerOverrideBundle. Figure 1 – Page Composer showing the override bundle being used. Business Objects Customizing the Business Objects available in the Applications Composer tool for the CRM products, such as adding additional fields, also operates using the session language. Translating these additional values for these fields into other installed languages requires loading additional resource bundles, again as described below. Reports and Analytics Most customizations to Reports and BI Analytics are just essentially reorganizations and visualizations of existing number and text data from the system, and as such will use the appropriate values based on the users session language. Where a translated value or string exists for that session language, it will be used without the need for additional work. Extending through the addition of brand new reports and analytics requires another method of loading the translated strings, as part of what is known as ‘Localizing’ the BI Catalog and Metadata. This time it is via an export/import of XML data through the BI Administrators console, and is described in the OBIEE Admin Guide. Fusion Applications reports based on BI Publisher are already defined in template-per-locale, and in addition provide an extra process for getting the data for translation and reloading. This again uses the standard resource bundle format. Loading a custom report is illustrated in this video from our YouTube channel which shows the screen for both setting the template local and running an export for translation. Fusion Applications Menus Whilst the seeded Navigator and Global Menu values are fully translated when the additional language is installed, if they are customized then the change or new menu item will apply universally, not currently per language. This is set to change in a future release with the new UI Text Editor feature described below. More on Resource Bundles As mentioned above, to provide translations for most of your customizations you need to add values to a resource bundle. This is an industry open standard (OASIS) format XML file with the extension .xliff, and store translated values for the strings used by ADF at run-time. The general process is that these values are exported from the MDS repository, manually edited, and then imported back in again.This needs to be done by an administrator, via either WLST commands or through Enterprise Manager as per the screenshot below. This is detailed out in the Fusion Applications Extensibility Guide. For SaaS environments the Cloud Operations team can assist. Figure 2 – Enterprise Manager’s MDS export used getting resource bundles for manual translation and re-imported on the same screen. All customized strings are stored in an override bundle (xliff file) for each locale, suffixed with the language initials, with English ones being saved to the default. As such each language bundle can be easily identified and updated. Similarly if you used JDeveloper to create your own applications as extensions to Fusion Applications you would use the native support for resource bundles, and add them into the faces-config.xml file for inclusion in your application. An example is this ADF customization video from our YouTube channel. JDeveloper also supports automatic synchronization between your underlying resource bundles and any translatable strings you add – very handy. For more information see chapters on “Using Automatic Resource Bundle Integration in JDeveloper” and “Manually Defining Resource Bundles and Locales” in the Oracle Fusion Middleware Web User Interface Developer’s Guide for Oracle Application Development Framework. FND Messages and Look-ups FND Messages, as defined here, are not used for UI labels (they are known as ‘strings’), but are the responses back to users as a result of an action, such as from a page submit. Each ‘message’ is defined and stored in the related database table (FND_MESSAGES_B), with another (FND_MESSAGES_TL) holding any language-specific values. These come seeded with the additional language installs, however if you customize the messages via the “Manage Messages” task in Functional Setup Manager, or add new ones, then currently (in Release 7) you’ll need to repeat it for each language. Figure 3 – An FND Message defined in an English user session. Similarly Look-ups are stored in a translation table (FND_LOOKUP_VALUES_TL) where appropriate, and can be customized by setting the users session language and making the change  in the Setup and Maintenance task entitled “Manage [Standard|Common] Look-ups”. Online Help Yes, in fact all the seeded help is applied as part of each language pack install as part of the post-install provisioning process. If you are editing or adding custom online help then the Create Help screen provides a drop-down of which language your help customization will apply to. This is shown in the video below from our YouTube channel, and obviously you’ll need to it for each language in use. What is Coming for Translations? Currently planned for Release 8 is something called the User Interface (UI) Text Editor. This tool will allow the editing of all the text shown on the pages and forms of Fusion Application. This will provide a search based on a particular term or word, say “Worker”, and will allow it to be adjusted, say to “Employee”, which then updates all the Resource Bundles that contain it. In the case of multi-language environments, it will use the users session language (locale) to know which Resource Bundles to apply the change to. This capability will also support customization sandboxes, to help ensure changes can be tested and approved.  It is also interesting to note that the design currently allows any page-specific customizations done using Page Composer or Application Composer to over-write the global changes done via the UI Text Editor, allowing for special context-sensitive values to still be used. Further Reading and Resources The following short list provides the mains resources for digging into more detail on translation support for both Composer and JDeveloper customization projects. There is a dedicated chapter entitled “Translating Custom Text” in the Fusion Applications Extensibility Guide. This has good examples and steps for many tasks, especially administering resource bundles. Using localization formatting (numbers, dates etc) for design-time changes is well documented in the Fusion Applications Developer Guide. For more guidelines on general design-time globalization, see either the ‘Internationalizing and Localizing Pages’ chapter in the Oracle Fusion Middleware Web User Interface Developer’s Guide for Oracle Application Development Framework (Oracle Fusion Applications Edition) or the general Oracle Database Globalization Support Guide. The Oracle Architecture ‘A-Team’ provided a recent post on customizing the user session timeout popup, using design-time changes to resource bundles. It has detailed step-by-step examples which can be a useful illustration.

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  • Getting in to smart card programming

    - by Scott Chamberlain
    I have a Compaq nw8440 with a smart card reader that is: Compatible with ISO 7816 compliant Smart Cards. PC/SC interface support I have been interested in smart cards and wanted to start playing around with them. If I wanted to get in to programming smart cards where can I find resources on how to do it, and would I need any additional hardware other than what my laptop provides (besides the cards to program)?

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  • How do I show a log analysis in Splunk?

    - by Vinod K
    I have made my ubuntu server a centralized log server...I have splunk installed in the /opt directory of the ubuntu server. I have one of the another machines sending logs to this ubuntu server..In the splunk interface i have added in the network ports as UDP port 514...and also have added in the "file and directory" /var/log. The client has also been configured properly...How do I show analysis of the logs??

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  • Ubuntu Server Cannot Route to the Internet

    - by ejes
    I've been having this problem for weeks now, and I can't seem to figure out the problem. My server can route the local network and serves it well, however it cannot access the internet. It can't be the router because everything else on this lan can route through the router. I've even switched the ethernet port. Any help would be appreciated. I've tried all the usual places, anyway, here are the configs: root@uhs:~# uname -a Linux uhs 3.0.0-16-generic-pae #28-Ubuntu SMP Fri Jan 27 19:24:01 UTC 2012 i686 i686 i386 GNU/Linux root@uhs:~# cat /etc/network/interfaces # This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). # The loopback network interface auto lo iface lo inet loopback # The primary network interface # auto eth1 # iface eth1 inet dhcp auto eth0 iface eth0 inet static address 192.168.0.3 netmask 255.255.255.0 broadcast 192.168.0.255 gateway 192.168.0.1 root@uhs:~# ping -c 4 192.168.0.1 PING 192.168.0.1 (192.168.0.1) 56(84) bytes of data. 64 bytes from 192.168.0.1: icmp_req=1 ttl=64 time=0.334 ms 64 bytes from 192.168.0.1: icmp_req=2 ttl=64 time=0.339 ms 64 bytes from 192.168.0.1: icmp_req=3 ttl=64 time=0.324 ms 64 bytes from 192.168.0.1: icmp_req=4 ttl=64 time=0.339 ms --- 192.168.0.1 ping statistics --- 4 packets transmitted, 4 received, 0% packet loss, time 2997ms rtt min/avg/max/mdev = 0.324/0.334/0.339/0.006 ms root@uhs:~# ping -c 4 209.85.145.103 PING 209.85.145.103 (209.85.145.103) 56(84) bytes of data. --- 209.85.145.103 ping statistics --- 4 packets transmitted, 0 received, 100% packet loss, time 3023ms root@uhs:~# ifconfig eth0 Link encap:Ethernet HWaddr 00:0c:6e:a0:92:6e inet addr:192.168.0.3 Bcast:192.168.0.255 Mask:255.255.255.0 inet6 addr: fe80::20c:6eff:fea0:926e/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:13131114 errors:0 dropped:0 overruns:0 frame:0 TX packets:10540297 errors:0 dropped:0 overruns:5 carrier:0 collisions:0 txqueuelen:1000 RX bytes:3077922794 (3.0 GB) TX bytes:3827489734 (3.8 GB) Interrupt:10 Base address:0xa000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:7721 errors:0 dropped:0 overruns:0 frame:0 TX packets:7721 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:551950 (551.9 KB) TX bytes:551950 (551.9 KB) root@uhs:~# route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 192.168.0.1 0.0.0.0 UG 100 0 0 eth0 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 root@uhs:~# # PRETEND Traceroute root@uhs:~# for i in {1..30}; do ping -t $i -c 1 209.85.145.103; done | grep "Time to live exceeded" root@uhs:~#

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  • Configuring log4j on weblogic server for web applications.

    - by adejuanc
    To configure Weblogic server : 1.- Read the following link : How to Use Log4j with WebLogic Logging Services http://download.oracle.com/docs/cd/E12840_01/wls/docs103/logging/config_logs.html#wp1014610 Here the step by step : 2.- Go to WL_HOME/server/lib and copy wllog4j.jar to the server CLASSPATH, to do this copy the file into DOMAIN_NAME/lib 3.- Download log4j jar (in my case I had not the file) from http://logging.apache.org/log4j/1.2/download.html , in this case the last available version is log4j-1.2.17.jar, and copy the file into DOMAIN_NAME/lib (As step 2). 4.- In this case I activate log4j using WLST (Weblogic Scripting Tool), as bellow : 4.1 .- As you're using windows, execute a terminal window and go to DOMAIN_NAME/bin and run the file setDomainEnv.cmd (this file will set the environment to run java). 4.2 .- Execute the following comands : C:\>java weblogic.WLST wls:/offline> connect('username','password') wls:/mydomain/serverConfig> edit() wls:/mydomain/edit> startEdit() wls:/mydomain/edit !> cd("Servers/$YOUR_SERVER_NAME/Log/$YOUR_SERVER_NAME" wls:/mydomain/edit/Servers/myserver/Log/myserver !> cmo.setLog4jLoggingEnabled(true) wls:/mydomain/edit/Servers/myserver/Log/myserver !> save() wls:/mydomain/edit/Servers/myserver/Log/myserver !> activate() you can use ls() to list the objects under the WLS directory this will activate log4j to use it with WLS. Configuring WebLogic Logging Services http://download.oracle.com/docs/cd/E12840_01/wls/docs103/logging/config_logs.html To configure applications : 1. Create a log4j.properties file as bellow log4j.debug=TRUE log4j.rootLogger=INFO, R log4j.appender.R=org.apache.log4j.RollingFileAppender log4j.appender.R.File=/home/server.log log4j.appender.R.MaxFileSize=100KB log4j.appender.R.MaxBackupIndex=5 log4j.appender.R.layout=org.apache.log4j.PatternLayout log4j.appender.R.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss.SSSS} %p %t %c – %m%n 2. Copy the file to /WEB-INF/classes directory. of your application. 3.- implement also the last action provided to activate log4j on WLS

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  • Software Architecture and MEF composition location

    - by Leonardo
    Introduction My software (a bunch of webapi's) consist of 4 projects: Core, FrontWebApi, Library and Administration. Library is a code library project that consists of only interfaces and enumerators. All my classes in other projects inherit from at least one interface, and this interface is in the library. Generally speaking, my interfaces define either Entities, Repositories or Controllers. This project references no other project or any special dlls... just the regular .Net stuff... Core is a class-library project where concrete implementation of Entities and Repositories. In some cases i have more than 1 implementation for a Repository (ex: one for azure table storage and one for regular Sql). This project handles the intelligence (business rules mostly) and persistence, and it references only the Library. FrontWebApi is a ASP.NET MVC 4 WebApi project that implements the controllers interfaces to handle web-requests (from a mobile native app)... It references the Core and the Library. Administration is a code-library project that represents a "optional-module", meaning: if it is present, it provides extra-features (such as Access Control Lists) to the application, but if its not, no problem. Administration is also only referencing the Library and implementing concrete classes of a few interfaces such as "IAccessControlEntry"... I intend to make this available with a "setup" that will create any required database table or anything like that. But it is important to notice that the Core has no reference to this project... Development Now, in order to have a decoupled code I decide to use IoC and because this is a small project, I decided to do it using MEF, specially because of its advertised "composition" capabilities. I arranged all the imports/exports and constructors and everything, but something is quite not perfect in my "mental-visualisation": Main Question Where should I "Compose" the objects? I mean: Technically, the only place where real implementation access is required is in the Repositories, because in order to retrieve data from wherever, entities instances will be necessary, and in all other places. The repositories could also provide a public "GetCleanInstanceOf()" right? Then all other places will be just fine working with the interfaces instead of concrete classes... Secondary Question Should "Administration" implement the concrete object for "IAccessControlGeneralRepository" or the Core should?

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  • Windows Azure Interop

    - by kaleidoscope
    How Windows Azure Platform is an open cloud platform. What makes it interoperable? The Windows Azure platform supports popular standards and protocols including SOAP, REST, and XML. Developers can use their preferred programming frameworks including .NET, and PHP, now. Tools such as Eclipse have been created for PHP developers for building Windows Azure applications. Now external endpoints (inbound traffic) have been enabled to worker a role, which enables applications that receive internet traffic that aren’t running under IIS. Windows Azure interoperable with Java At PDC 09, solution accelerator for Tomcat is delivered. Tomcat is an open source software implementation of the Java Servlet and JavaServer Pages technologies. The Windows Azure solution accelerator leverages a PDC09 feature that enable arbitrary processes to bind to inbound service endpoints. Windows Azure interoperable with PHP The Windows Azure tools for Eclipse extension builds upon the PHP Development Toolkit (PDT) and integrates Web Tools Platform (WTP) to provide a complete toolkit for Windows Azure web application development. For more details please refer to the link: http://www.microsoft.com/windowsazure/faq/   Rituraj

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  • wifi connection in lubuntu 11.10

    - by made_in_india
    I am facing the wifi network connection problem, which was previously working absolutely fine. I have checked /etc/network/interfaces file auto wlan0 iface wlan0 inet dhcp wireless-mode managed wireless-essid my_network_name I have also tried the following command on terminal but were no use sudo ifup wlan0 fail to bring up wlan0 sudo ifdown wlan0 ifdown: interface wlan0 not configured output of $ sudo lspci |grep -i network has produce the below results 06:00.0 Ethernet controller: Atheros Communications Inc. AR242x / AR542x Wireless Network Adapter (PCI-Express) (rev 01)

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  • AT&T Application Resource Analyzer in NetBeans IDE

    - by Geertjan
    Here at Øredev in Malmö I met Doug Sillars who does developer outreach for the AT&T Application Resource Optimizer. In this YouTube clip you see Doug explaining how it works and what it can do for optimizing performance of mobile applications. There's a free and open source Android app on GitHub that you can install on Android to collect data and then there's a Java Swing application for analyzing the results. And here's what that application looks like as a plugin in NetBeans IDE, click to enlarge the image, which shows the Android sources of the Data Collector, as well as the Data Analyzer ready to be used to collect data: Since the ARO Data Analyzer is written in Java and has JPanels defining its UI layer, integrating the user interface wasn't hard. Now working on the Actions, so there'll be a new ARO menu with start/stop data collecting menu items, etc, reusing as much of the original code as possible. That part is actually already working. I started up an Android emulator, then started the data collection process from the IDE. Now need to include the Actions for importing the data into the analyzer, together with a few other related features. A pretty cool feature in ARO is video capture, so that a movie can be made by ARO of all the steps taken on the device during the collection process, which will also be nice to have integrated into the NetBeans plugin. Ultimately, this will be handy for anyone creating Android applications in NetBeans IDE since they'll be able to use AT&T's ARO tool for optimizing the performance of the applications they're developing. It will also be useful for those using the built-in Cordova tools in NetBeans IDE to create iOS applications because ARO is also applicable to analyzing iOS application performance.

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  • how to choose a web framework and javascript library?

    - by Trylks
    I've been procrastinating learning some framework for web apps w/ some library for AJAX, something like django with prototype, or turbogears with mootools, or zeta components with dojo, grok, jquery, symfony... The point is to spend some of my spare time, have "fun" and create cool stuff that hopefully is some useful. I think maybe I wouldn't like something like GWT or pyjamas because I wouldn't like to "get married" with some technology, I want to keep my freedom to add another javascript library, and so on. I didn't decide even the language yet, but I think I'd prefer python. PHP could be fine if there is some framework that is nice enough. Besides that, I don't even know where to start. I don't feel like learning a framework to then realize there is something that I cannot comfortably do, switch to another framework then find that a third framework has something really cool, etc. And the same goes for javascript libraries. So, some guidance would be really appreciated. I don't really know why are so many options available and what do they aim for, I guess some of them focus on some aspects and some on others, but I just want to make cool and nice apps that I can easily maintain, without spending too much time on coding or learning and avoiding the "trapped in the framework" feeling, when doing something is awfully complicated (or even impossible) with compared with the rest of things or doing that same thing on a different framework. I guess in the end I'll go for django and jquery since they are the most widely used options, afaik, but if I was going for the most widely used options I guess I should choose Java or PHP (I don't really like Java for my spare time, but php is not so bad), so I preferred to ask first. I think the question has to consider both, framework and library, since sometimes they are coupled. I think this is the place to ask this kind of things, sorry if not, and thank you.

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  • blender: 3D model from guide images

    - by Stefan
    In a effort to learn the blender interface, which is confusing to say the least, I've chosen to model a model from referrence pictures easily found on the web. Problem is that I can't ( and won't ) get perfect "right", "front" and "top" pictures. Blender only allows you to see the background pictures when in ortographic mode and only from right|front|top, which doesn't help me. How to I proceed to model from non-perfect guide images?

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  • Sortie de la version 4.3 de eZ Publish, le CMS développé par le norvégien eZ Systems

    Nous vous annonçons la sortie de la version 4.3. (le nom de code est Fuji) du gestionnaire de contenu eZ Publish. Les grandes nouveautés sont :Nouvelle interface d'administration Nouvelle conception des interactions utilisateurs Mise en place de Teamroom, un outil de collaboration avancé et d'autres. Page de téléchargement : http://ez.no/download/ez_publish Page officiel de l'annonce : http://ez.no/company/news/ez_web_con...ez_publish_4_3...

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  • Why does fusion icon not work in Ubuntu 12.04

    - by Peter Bauer
    When I start the compiz fusion icon Application from the shell I get the following output but no icon and no GUI: $ fusion-icon --no-start * Detected Session: gnome * Searching for installed applications... Checking if settings need to be migrated ...no Checking if internal files need to be migrated ...no Backend : gconf Integration : true Profile : default Initializing decor options...done * NVIDIA on Xorg detected, exporting: __GL_YIELD=NOTHING * Using the GTK Interface

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  • Monitor Processes' Memory Usage

    - by Alvin Sim
    We have an IBM P series box running AIX 5.3. This is our application server, whereby our J2EE application is running in Oracle's Applications Server (version 10g r2). At around 11pm till the next day 7am, we have shell scripts running, which executes Java class programs. Recently, this server has been experiencing some high memory usage, which caused some of the Java class programs throwing "Out of memory" exception . We normally use NMON to monitor the server's resources, such as CPU, I/O, memory, etc. But because of this OOM issue, we would like to know throughout the day, what are the processes which are running and how much memory each process consumed. NMON is not able to show this. Even with the "-T" parameter, it only shows the top processes and not all. Is there any thing we can use to monitor all the processes' memory?

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  • Gotcha when using JavaScript in ADF Regions

    - by Frank Nimphius
    You use the ADF Faces af:resource tag to add or reference JavaScript on a page. However, adding the af:resource tag to a page fragment my not produce the desired result if the script is added as shown below <?xml version='1.0' encoding='UTF-8'?> <jsp:root xmlns:jsp="http://java.sun.com/JSP/Page" version="2.1" xmlns:af="http://xmlns.oracle.com/adf/faces/rich"> <af:resource type="javascript">   function yourMethod(evt){ ... } </af:resource> Adding scripts to a page fragment like this will see the script added for the first page fragment loaded by an ADF region but not for any subsequent fragment navigated to within the context of task flow navigation. The cause of this problem is caching as the af:resource tag is a JSP element and not a lazy loaded JSF component, which makes it a candidate for caching. To solve the problem, move the af:resource tag into a container component like af:panelFormLayout so the script is added when the component is instantiated and added to the page.  <?xml version='1.0' encoding='UTF-8'?> <jsp:root xmlns:jsp="http://java.sun.com/JSP/Page" version="2.1" xmlns:af="http://xmlns.oracle.com/adf/faces/rich"> <af:panelFormLayout> <af:resource type="javascript">   function yourMethod(evt){ ... } </af:resource> </af:panelFormLayout> Magically this then works and prevents browser caching of the script when using page fragments.

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