osgi framework

Modular Specification In Java, there is no modular concept, or there is no de facto standard. Is how to form a module, which modules are used internally, and which modules are used externally. Osgi can solve the above problems and ApplicationsProgramIt can be built like building blocks. For example, for a running system, the log service module is not provided in the system, then, you can directly develop the corresponding log service module and dy

Solve the NoClassDefFoundError of third-party packages in the OSGI environment-Linux general technology-Linux programming and kernel information. The following is a detailed description. I finally fixed this problem and made a conclusion: 1. Transform the class file of a third-party package into a bundle and export all packages. 2. Use equinox of eclipse to start all bundle 3. In the eclipse environment, the startup is normal, but it fails to be st

Today, in the course of learning OSGi, the first HelloWorld plug-in project was built as described in the book, and the following error occurred during the running process:! SESSION 2014-06-09 21:04:49.038-----------------------------------------------Eclipse.buildid=unknownJava.version=1.6.0_35Java.vendor=sun Microsystems INC.BootLoader Constants:os=win32, arch=x86_64, Ws=win32, Nl=en_usCommand-Line arguments:-dev File:e:/xjtu/.metadata/.plugins/org.

Eclipse 3.0 does not replace the original plug-in mechanism with osgi. It is only compatible with the standard: it provides users with a series of APIS for access. In this process, some changes must be made (such as plugin registry and loading mechanism) to be fully compatible with osgi standards. The original plug-in core only supports static expansion. That is to say, to change an existing plug, you must

Today, in the course of learning OSGi, the first HelloWorld plug-in project was built as described in the book, and the following error occurred during the running process:! SESSION 2014-06-09 21:04:49.038-----------------------------------------------eclipse.buildid= Unknownjava.version=1.6.0_35java.vendor=sun Microsystems Inc.bootloader Constants:os=win32, ARCH=x86_64, WS=win32, Nl=en_uscommand-line arguments:-dev file:e:/xjtu/.metadata/.plugins/org

1. log4j. properties example Log4j. rootcategory = info, stdout, logfile Log4j. appender. stdout = org. Apache. log4j. leleappenderLog4j. appender. stdout. layout = org. Apache. log4j. patternlayoutLog4j. appender. stdout. layout. conversionpattern = % d % P [% C]- Log4j. appender. logfile = org. Apache. log4j. dailyrollingfileappenderLog4j. appender. logfile. File = text_log.logLog4j. appender. logfile. datepattern =. yyyy-mm-ddLog4j. appender. logfile. layout = org. Apache. log4j. patternlayo

The spring-osgi default load resolves an XML file in the Meta-inf/spring directory as a spring bean configuration file, or you can specify a spring bean configuration file by adding Spring-context to MANIFEST.MF. To publish a spring bean as an OSGi Service, simply configure it in the XML of the Spring bean: To reference an OSGi Service in a spring bean, simply

Recently started to study OSGi, but began to see some online articles. Osgi+spring and so on and so on, I don't know what OSGi is used to do at any time. What role does he play in the Java EE architecture? Look for some information. The advantage of OSGi is the use of plug-in development to use the entire process of th

OSGi uses the Equnix Framework bridge approach (partly from the IBM Web site): Http://www.cnblogs.com/lxhomj/archive/2012/04/19/2457911.html Bridge Way Construction Method A Install Eclipse,jdk,tomcat. This paper takes eclipse3.7.2,jdk1.7.0,tomcat-7.0.27 as an example Lab environment: Win7 X64 Home Premium Edition Two We need to configure our Tomcat in Eclipse preferences Select runtime environment in

OSGi + Felix Example3 improvements in authoring and using servicesIn the previous blog post we mentioned how to register a service, but in example2 and example2b no corresponding use of the service, in this article will use the appropriate use of this service, in Felix's official website, The use of the service is to scan the currently registered bundle, and then use the service, but personally feel activator this boot bundle is best only one, and thi

Helpful Articles: HTTP://STACKOVERFLOW.COM/QUESTIONS/22014969/TESS4J-WITH-SPRING-MVC http://stackoverflow.com/questions/ 22035048/imageio-jar-works-as-standalone-but-not-as-a-web-project http://stackoverflow.com/questions/ 27394852/getimagewritersbyformatname-doesnt-give-proper-values A recent tesseract-ocr-3.02+tess4j-1.5.0+servicemix-5.4.0 (a scheme based on OSGi) is always reported java.lang.RuntimeException:Need to install JAI Image I/O packag

class implements the Bundleactivator interface, which has two empty methods--start and stop. The Start method is invoked when the bundle is started, and the stop is invoked when the bundle is stopped, adding code:HelloWorld examples are complete. 3, Operation (1) First create a HelloWorld run configuration (2) Then set the Helloworldde Auto-start property to False (3) Click Run and the "osgi>" prompt appears in the console. Indicates that an