org.argeo.cms/src/org/argeo/cms/internal/kernel/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                         log.debug("Kernel bundle started");
  63                 } catch (Exception e) {
  64                         log.error("## FATAL: CMS activator failed", e);
  65                 }
  66         }
  67
  68         private void initSecurity() {
  69                 if (System.getProperty(KernelConstants.JAAS_CONFIG_PROP) == null) {
  70                         String jaasConfig = KernelConstants.JAAS_CONFIG;
  71                         URL url = getClass().getClassLoader().getResource(jaasConfig);
  72                         // System.setProperty(KernelConstants.JAAS_CONFIG_PROP,
  73                         // url.toExternalForm());
  74                         KernelUtils.setJaasConfiguration(url);
  75                 }
  76                 // explicitly load JAAS configuration
  77                 Configuration.getConfiguration();
  78
  79                 // ConditionalPermissionAdmin permissionAdmin = bc
  80                 // .getService(bc.getServiceReference(ConditionalPermissionAdmin.class));
  81                 // ConditionalPermissionUpdate update =
  82                 // permissionAdmin.newConditionalPermissionUpdate();
  83                 // // Self
  84                 // update.getConditionalPermissionInfos()
  85                 // .add(permissionAdmin.newConditionalPermissionInfo(null,
  86                 // new ConditionInfo[] {
  87                 // new ConditionInfo(BundleLocationCondition.class.getName(), new
  88                 // String[] { "*" }) },
  89                 // new PermissionInfo[] { new
  90                 // PermissionInfo(AllPermission.class.getName(), null, null) },
  91                 // ConditionalPermissionInfo.ALLOW));
  92                 //
  93         }
  94
  95         private void initArgeoLogger() {
  96                 // Jetty
  97                 // disable integration of Jetty logging with SLF4J
  98                 // in order to avoid chicken and egg problems
  99                 // org.eclipse.jetty.util.log.Log.setLog(new StdErrLog());
 100                 // org.eclipse.jetty.util.log.Logger jettyLog =
 101                 // org.eclipse.jetty.util.log.Log.getLog();
 102                 // if (jettyLog != null) {
 103                 // jettyLog.warn("TEST JETTY LOG", new Object[0]);
 104                 // }
 105
 106                 logger = new NodeLogger(logReaderService);
 107                 bc.registerService(ArgeoLogger.class, logger, null);
 108         }
 109
 110         private void initNode() throws IOException {
 111                 // Node state
 112                 Path stateUuidPath = bc.getDataFile("stateUuid").toPath();
 113                 String stateUuid;
 114                 if (Files.exists(stateUuidPath)) {
 115                         stateUuid = Files.readAllLines(stateUuidPath).get(0);
 116                 } else {
 117                         stateUuid = bc.getProperty(Constants.FRAMEWORK_UUID);
 118                         Files.write(stateUuidPath, stateUuid.getBytes());
 119                 }
 120                 nodeState = new CmsState(stateUuid);
 121                 Dictionary<String, Object> regProps = LangUtils.dico(Constants.SERVICE_PID, NodeConstants.NODE_STATE_PID);
 122                 regProps.put(NodeConstants.CN, stateUuid);
 123                 bc.registerService(NodeState.class, nodeState, regProps);
 124
 125                 // Node deployment
 126                 nodeDeployment = new CmsDeployment();
 127                 bc.registerService(NodeDeployment.class, nodeDeployment, null);
 128
 129                 // Node instance
 130                 nodeInstance = new CmsInstance();
 131                 bc.registerService(NodeInstance.class, nodeInstance, null);
 132         }
 133
 134         @Override
 135         public void stop(BundleContext bundleContext) throws Exception {
 136                 try {
 137                         if (nodeInstance != null)
 138                                 nodeInstance.shutdown();
 139                         if (nodeDeployment != null)
 140                                 nodeDeployment.shutdown();
 141                         if (nodeState != null)
 142                                 nodeState.shutdown();
 143
 144                         instance = null;
 145                         this.bc = null;
 146                         this.logReaderService = null;
 147                         // this.configurationAdmin = null;
 148                 } catch (Exception e) {
 149                         log.error("CMS activator shutdown failed", e);
 150                 }
 151         }
 152
 153         private <T> T getService(Class<T> clazz) {
 154                 ServiceReference<T> sr = bc.getServiceReference(clazz);
 155                 if (sr == null)
 156                         throw new CmsException("No service available for " + clazz);
 157                 return bc.getService(sr);
 158         }
 159
 160         public static NodeState getNodeState() {
 161                 return instance.nodeState;
 162         }
 163
 164         public static GSSCredential getAcceptorCredentials() {
 165                 return getNodeUserAdmin().getAcceptorCredentials();
 166         }
 167
 168         public static boolean isSingleUser() {
 169                 return getNodeUserAdmin().isSingleUser();
 170         }
 171
 172         private static NodeUserAdmin getNodeUserAdmin() {
 173                 ServiceReference<UserAdmin> sr = instance.bc.getServiceReference(UserAdmin.class);
 174                 NodeUserAdmin userAdmin = (NodeUserAdmin) instance.bc.getService(sr);
 175                 return userAdmin;
 176
 177         }
 178
 179         // static CmsSecurity getCmsSecurity() {
 180         // return instance.nodeSecurity;
 181         // }
 182
 183         public String[] getLocales() {
 184                 // TODO optimize?
 185                 List<Locale> locales = getNodeState().getLocales();
 186                 String[] res = new String[locales.size()];
 187                 for (int i = 0; i < locales.size(); i++)
 188                         res[i] = locales.get(i).toString();
 189                 return res;
 190         }
 191
 192 }