Sorry for the false alarm. Looks like the usual way works for me now: URL url = new URL(id); return url.openStream();
Best Regards, Sergey Shcherbakov. -----Original Message----- From: Sergey Shcherbakov [mailto:[email protected]] Sent: Tuesday, May 26, 2009 10:17 AM To: [email protected] Subject: Get a filename of the resource referenced by the maven url Hi all, I would like to ask the question below here in the Felix user list. How can I make use of the Felix URL protocol handling from within application that embeds Felix instance? Below is a code snippet which shows how I could achieve that meanwhile. But I believe there should be more elegant way to do the same. Best Regards, Sergey Shcherbakov. -----Original Message----- From: Sergey Shcherbakov [mailto:[email protected]] Sent: Monday, May 25, 2009 6:48 PM To: [email protected] Subject: RE: Get a filename of the resource referenced by the maven url Here is a way I found it possible to use PAX Url to solve my problem: ... urlServiceTracker = new ServiceTracker( hostActivator.getContext(), URLStreamHandlerService.class.getName(), null); urlServiceTracker.open(); ... public InputStream getResource(String id) { // id = "mvn:my.group.id/my_artifact/0.0.1-SNAPSHOT/zip/bin"; try{ URL url = new URL(id); Object[] services = urlServiceTracker.getServices(); URLConnection conn = null; for( Object service : services ){ try{ URLStreamHandlerService shs = (URLStreamHandlerService) service; conn = shs.openConnection(url); break; } catch(MalformedURLException ex){ } } if( conn != null ) return conn.getInputStream(); } catch(IOException ex){ ex.printStackTrace(); } catch(Throwable t){ t.printStackTrace(); } return null; } Isn't there more elegant way to use PAX Url except iterating through the available URLStreamHandlerService implementations in order to find one that supports needed protocol? In the PAX Url package I could not find Handler.class that I could use to make java.net.URL to work automatically with different protocols. Thus, I have ended up by the iteration loop :( Can anybody recommend better approach? Best Regards, Sergey Shcherbakov. -----Original Message----- From: Sergey Shcherbakov [mailto:[email protected]] Sent: Friday, May 22, 2009 3:56 PM To: [email protected] Subject: RE: Get a filename of the resource referenced by the maven url Hi Jean-Baptiste, Eh.. actually not on the class path but in the local maven folder (I am storing non-java resources in the maven-like structured folder layout using Maven and Ivy). But in principle this is the same: classpath:/mybundle/file.conf or mvn:myorg/myartifact/version/type/classifier If I'd know how to get resource using one URL I would know how to get it using another. The link you are referring to is the same as I was talking about. It doesn't contain examples of getting resources using URLs programmatically. Best Regards, Sergey Shcherbakov. -----Original Message----- From: Jean-Baptiste Onofré [mailto:[email protected]] Sent: Friday, May 22, 2009 3:46 PM To: [email protected] Subject: Re: Get a filename of the resource referenced by the maven url Hi Sergey, I don't know if I have right understood your needs :). I guess that you need to read a file located in your application classpath, correct ? In this case, using PAX, you can use classpath protocol like this: classpath:/mybundle/file.conf You can find some documentation here: http://wiki.ops4j.org/display/paxurl/Classpath+Protocol Regards JB Sergey Shcherbakov wrote: > Hello all, > > > > I am very new to OSGi and Servicemix. > > > > Let's say, I have a running Servicemix instance. A [local] maven > repository can be and is usually used to find resources required by > dependencies etc. > > > > From my bundle or better to say from my application that embeds > Servicemix I need to figure out a full file name of the resource > referenced by the maven url (mvn:...). > > > > That is, I have an URL string that uses maven protocol and want to get a > local file name of the artifact referenced by this URL or even an input > stream representing that resource (that would be OK too). > > > > I believe this is possible with help of the Servicemix preinstalled > bundle services. > > > > Could you please give a hint in which direction should I look? > > > > In the out of the box running Servicemix instance I have found several > bundles that provide > > org.osgi.service.url.URLStreamHandlerService > > > > Do I need a maven implementation one of them? This interface requires a > further a reference to the org.osgi.service.url.URLStreamHandlerSetter > implementation. Should I implement it by myself? > > Is there a more simple way to convert maven URL into the local file > system path? > > > > The PAX documentation > > http://wiki.ops4j.org/display/paxurl/Mvn+Protocol > > is very brief and I could not find examples of how to use it. > > > > The way I found to be recommended for use from inside bundles: > > > > URL url = new URL(s); > > InputStream in = url.openStream(); > > > > Doesn't work for me since I have an embedded Servicemix instance. > > I have only a Felix, BundleContext and a ServiceTracker references and > the code above throws "unknown protocol" Runtime exception. > > > > Thank you! > > > > Best Regards, > > Sergey Shcherbakov. > > > > --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
