org.argeo.cms.ui/src/org/argeo/security/core/OsgiModuleLabel.java

   1 package org.argeo.security.core;
   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 /**
  10  * Logs the name and version of an OSGi bundle based on its
  11  * {@link BundleContext}.
  12  */
  13 public class OsgiModuleLabel {
  14         private final static Log log = LogFactory.getLog(OsgiModuleLabel.class);
  15
  16         private Bundle bundle;
  17
  18         public OsgiModuleLabel() {
  19         }
  20
  21         /** Sets without logging. */
  22         public OsgiModuleLabel(Bundle bundle) {
  23                 this.bundle = bundle;
  24         }
  25
  26         /**
  27          * Retrieved bundle from a bundle context and logs it. Typically to be set
  28          * as a Spring bean.
  29          */
  30         public void setBundleContext(BundleContext bundleContext) {
  31                 this.bundle = bundleContext.getBundle();
  32                 log.info(msg());
  33         }
  34
  35         public String msg() {
  36                 String name = bundle.getHeaders().get(Constants.BUNDLE_NAME).toString();
  37                 String symbolicName = bundle.getSymbolicName();
  38                 String version = bundle.getVersion().toString();
  39                 return name + " v" + version + " (" + symbolicName + ")";
  40         }
  41 }