Rename OSGi Boot to Argeo Init and introduce logging framework.

[lgpl/argeo-commons.git] / org.argeo.init / src / org / argeo / init / osgi / OsgiBootDiagnostics.java

diff --git a/org.argeo.init/src/org/argeo/init/osgi/OsgiBootDiagnostics.java b/org.argeo.init/src/org/argeo/init/osgi/OsgiBootDiagnostics.java
new file mode 100644 (file)
index 0000000..72d9a3e
--- /dev/null
+++ b/org.argeo.init/src/org/argeo/init/osgi/OsgiBootDiagnostics.java
@@ -0,0 +1,78 @@
+package org.argeo.init.osgi;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.TreeMap;
+import java.util.TreeSet;
+
+import org.osgi.framework.Bundle;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.ServiceReference;
+import org.osgi.service.packageadmin.ExportedPackage;
+import org.osgi.service.packageadmin.PackageAdmin;
+
+@SuppressWarnings("deprecation")
+class OsgiBootDiagnostics {
+       private final BundleContext bundleContext;
+
+       public OsgiBootDiagnostics(BundleContext bundleContext) {
+               this.bundleContext = bundleContext;
+       }
+       /*
+        * DIAGNOSTICS
+        */
+       /** Check unresolved bundles */
+       protected void checkUnresolved() {
+               // Refresh
+               ServiceReference<PackageAdmin> packageAdminRef = bundleContext.getServiceReference(PackageAdmin.class);
+               PackageAdmin packageAdmin = (PackageAdmin) bundleContext.getService(packageAdminRef);
+               packageAdmin.resolveBundles(null);
+
+               Bundle[] bundles = bundleContext.getBundles();
+               List<Bundle> unresolvedBundles = new ArrayList<Bundle>();
+               for (int i = 0; i < bundles.length; i++) {
+                       int bundleState = bundles[i].getState();
+                       if (!(bundleState == Bundle.ACTIVE || bundleState == Bundle.RESOLVED || bundleState == Bundle.STARTING))
+                               unresolvedBundles.add(bundles[i]);
+               }
+
+               if (unresolvedBundles.size() != 0) {
+                       OsgiBootUtils.warn("Unresolved bundles " + unresolvedBundles);
+               }
+       }
+
+       /** List packages exported twice. */
+       public Map<String, Set<String>> findPackagesExportedTwice() {
+               ServiceReference<PackageAdmin> paSr = bundleContext.getServiceReference(PackageAdmin.class);
+               PackageAdmin packageAdmin = (PackageAdmin) bundleContext.getService(paSr);
+
+               // find packages exported twice
+               Bundle[] bundles = bundleContext.getBundles();
+               Map<String, Set<String>> exportedPackages = new TreeMap<String, Set<String>>();
+               for (int i = 0; i < bundles.length; i++) {
+                       Bundle bundle = bundles[i];
+                       ExportedPackage[] pkgs = packageAdmin.getExportedPackages(bundle);
+                       if (pkgs != null)
+                               for (int j = 0; j < pkgs.length; j++) {
+                                       String pkgName = pkgs[j].getName();
+                                       if (!exportedPackages.containsKey(pkgName)) {
+                                               exportedPackages.put(pkgName, new TreeSet<String>());
+                                       }
+                                       (exportedPackages.get(pkgName)).add(bundle.getSymbolicName() + "_" + bundle.getVersion());
+                               }
+               }
+               Map<String, Set<String>> duplicatePackages = new TreeMap<String, Set<String>>();
+               Iterator<String> it = exportedPackages.keySet().iterator();
+               while (it.hasNext()) {
+                       String pkgName = it.next().toString();
+                       Set<String> bdles = exportedPackages.get(pkgName);
+                       if (bdles.size() > 1)
+                               duplicatePackages.put(pkgName, bdles);
+               }
+               return duplicatePackages;
+       }
+
+}