runtime/org.argeo.slc.support.osgi/src/main/java/org/argeo/slc/osgi/deploy/OsgiModuleLabel.java

   1 package org.argeo.slc.osgi.deploy;
   2
   3 import org.apache.commons.logging.Log;
   4 import org.apache.commons.logging.LogFactory;
   5 import org.osgi.framework.Bundle;
   6 import org.osgi.framework.BundleContext;
   7 import org.osgi.framework.Constants;
   8
   9 /** Logs the version of an OSGi bundle. */
  10 public class OsgiModuleLabel {
  11         private final static Log log = LogFactory.getLog(OsgiModuleLabel.class);
  12
  13         private Bundle bundle;
  14
  15         public OsgiModuleLabel() {
  16         }
  17
  18         /** Sets without logging. */
  19         public OsgiModuleLabel(Bundle bundle) {
  20                 this.bundle = bundle;
  21         }
  22
  23         /**
  24          * Retrieved bundle from a bundle context and logs it. Typically to be set
  25          * as a Spring bean.
  26          */
  27         public void setBundleContext(BundleContext bundleContext) {
  28                 this.bundle = bundleContext.getBundle();
  29                 log.info(msg());
  30         }
  31
  32         public String msg() {
  33                 String name = bundle.getHeaders().get(Constants.BUNDLE_NAME).toString();
  34                 String symbolicName = bundle.getSymbolicName();
  35                 String version = bundle.getVersion().toString();
  36                 return name + " v" + version + " (" + symbolicName + ")";
  37         }
  38 }