Activator.java

   1 package org.argeo.cms.internal.kernel;
   2
   3 import java.io.IOException;
   4 import java.net.URL;
   5 import java.nio.file.Files;
   6 import java.nio.file.Path;
   7 import java.util.Dictionary;
   8 import java.util.List;
   9 import java.util.Locale;
  10
  11 import javax.security.auth.login.Configuration;
  12
  13 import org.apache.commons.logging.Log;
  14 import org.apache.commons.logging.LogFactory;
  15 import org.argeo.cms.CmsException;
  16 import org.argeo.node.ArgeoLogger;
  17 import org.argeo.node.NodeConstants;
  18 import org.argeo.node.NodeDeployment;
  19 import org.argeo.node.NodeInstance;
  20 import org.argeo.node.NodeState;
  21 import org.argeo.util.LangUtils;
  22 import org.ietf.jgss.GSSCredential;
  23 import org.osgi.framework.BundleActivator;
  24 import org.osgi.framework.BundleContext;
  25 import org.osgi.framework.Constants;
  26 import org.osgi.framework.ServiceReference;
  27 import org.osgi.service.log.LogReaderService;
  28 import org.osgi.service.useradmin.UserAdmin;
  29
  30 /**
  31  * Activates the kernel. Gives access to kernel information for the rest of the
  32  * bundle (and only it)
  33  */
  34 public class Activator implements BundleActivator {
  35         private final static Log log = LogFactory.getLog(Activator.class);
  36
  37         private static Activator instance;
  38
  39         private BundleContext bc;
  40         // private CmsSecurity nodeSecurity;
  41         private LogReaderService logReaderService;
  42         // private ConfigurationAdmin configurationAdmin;
  43
  44         private NodeLogger logger;
  45         private CmsState nodeState;
  46         private CmsDeployment nodeDeployment;
  47         private CmsInstance nodeInstance;
  48
  49         @Override
  50         public void start(BundleContext bundleContext) throws Exception {
  51                 Runtime.getRuntime().addShutdownHook(new CmsShutdown());
  52                 instance = this;
  53                 this.bc = bundleContext;
  54                 this.logReaderService = getService(LogReaderService.class);
  55                 // this.configurationAdmin = getService(ConfigurationAdmin.class);
  56
  57                 try {
  58                         // nodeSecurity = new CmsSecurity();
  59                         initSecurity();
  60                         initArgeoLogger();
  61                         initNode();
  62                 } catch (Exception e) {
  63                         log.error("## FATAL: CMS activator failed", e);
  64                 }
  65         }
  66
  67         private void initSecurity() {
  68                 if (System.getProperty(KernelConstants.JAAS_CONFIG_PROP) == null) {
  69                         String jaasConfig = KernelConstants.JAAS_CONFIG;
  70                         URL url = getClass().getClassLoader().getResource(jaasConfig);
  71                         // System.setProperty(KernelConstants.JAAS_CONFIG_PROP,
  72                         // url.toExternalForm());
  73                         KernelUtils.setJaasConfiguration(url);
  74                 }
  75                 // explicitly load JAAS configuration
  76                 Configuration.getConfiguration();
  77
  78                 // ConditionalPermissionAdmin permissionAdmin = bc
  79                 // .getService(bc.getServiceReference(ConditionalPermissionAdmin.class));
  80                 // ConditionalPermissionUpdate update =
  81                 // permissionAdmin.newConditionalPermissionUpdate();
  82                 // // Self
  83                 // update.getConditionalPermissionInfos()
  84                 // .add(permissionAdmin.newConditionalPermissionInfo(null,
  85                 // new ConditionInfo[] {
  86                 // new ConditionInfo(BundleLocationCondition.class.getName(), new
  87                 // String[] { "*" }) },
  88                 // new PermissionInfo[] { new
  89                 // PermissionInfo(AllPermission.class.getName(), null, null) },
  90                 // ConditionalPermissionInfo.ALLOW));
  91                 //
  92         }
  93
  94         private void initArgeoLogger() {
  95                 // Jetty
  96                 // disable integration of Jetty logging with SLF4J
  97                 // in order to avoid chicken and egg problems
  98                 // org.eclipse.jetty.util.log.Log.setLog(new StdErrLog());
  99                 // org.eclipse.jetty.util.log.Logger jettyLog =
 100                 // org.eclipse.jetty.util.log.Log.getLog();
 101                 // if (jettyLog != null) {
 102                 // jettyLog.warn("TEST JETTY LOG", new Object[0]);
 103                 // }
 104
 105                 logger = new NodeLogger(logReaderService);
 106                 bc.registerService(ArgeoLogger.class, logger, null);
 107         }
 108
 109         private void initNode() throws IOException {
 110                 // Node state
 111                 Path stateUuidPath = bc.getDataFile("stateUuid").toPath();
 112                 String stateUuid;
 113                 if (Files.exists(stateUuidPath)) {
 114                         stateUuid = Files.readAllLines(stateUuidPath).get(0);
 115                 } else {
 116                         stateUuid = bc.getProperty(Constants.FRAMEWORK_UUID);
 117                         Files.write(stateUuidPath, stateUuid.getBytes());
 118                 }
 119                 nodeState = new CmsState(stateUuid);
 120                 Dictionary<String, Object> regProps = LangUtils.dico(Constants.SERVICE_PID, NodeConstants.NODE_STATE_PID);
 121                 regProps.put(NodeConstants.CN, stateUuid);
 122                 bc.registerService(NodeState.class, nodeState, regProps);
 123
 124                 // Node deployment
 125                 nodeDeployment = new CmsDeployment();
 126                 bc.registerService(NodeDeployment.class, nodeDeployment, null);
 127
 128                 // Node instance
 129                 nodeInstance = new CmsInstance();
 130                 bc.registerService(NodeInstance.class, nodeInstance, null);
 131         }
 132
 133         @Override
 134         public void stop(BundleContext bundleContext) throws Exception {
 135                 try {
 136                         if (nodeInstance != null)
 137                                 nodeInstance.shutdown();
 138                         if (nodeDeployment != null)
 139                                 nodeDeployment.shutdown();
 140                         if (nodeState != null)
 141                                 nodeState.shutdown();
 142
 143                         instance = null;
 144                         this.bc = null;
 145                         this.logReaderService = null;
 146                         // this.configurationAdmin = null;
 147                 } catch (Exception e) {
 148                         log.error("CMS activator shutdown failed", e);
 149                 }
 150         }
 151
 152         private <T> T getService(Class<T> clazz) {
 153                 ServiceReference<T> sr = bc.getServiceReference(clazz);
 154                 if (sr == null)
 155                         throw new CmsException("No service available for " + clazz);
 156                 return bc.getService(sr);
 157         }
 158
 159         public static NodeState getNodeState() {
 160                 return instance.nodeState;
 161         }
 162
 163         public static GSSCredential getAcceptorCredentials() {
 164                 return getNodeUserAdmin().getAcceptorCredentials();
 165         }
 166
 167         public static boolean isSingleUser() {
 168                 return getNodeUserAdmin().isSingleUser();
 169         }
 170
 171         private static NodeUserAdmin getNodeUserAdmin() {
 172                 ServiceReference<UserAdmin> sr = instance.bc.getServiceReference(UserAdmin.class);
 173                 NodeUserAdmin userAdmin = (NodeUserAdmin) instance.bc.getService(sr);
 174                 return userAdmin;
 175
 176         }
 177
 178         // static CmsSecurity getCmsSecurity() {
 179         // return instance.nodeSecurity;
 180         // }
 181
 182         public String[] getLocales() {
 183                 // TODO optimize?
 184                 List<Locale> locales = getNodeState().getLocales();
 185                 String[] res = new String[locales.size()];
 186                 for (int i = 0; i < locales.size(); i++)
 187                         res[i] = locales.get(i).toString();
 188                 return res;
 189         }
 190
 191 }