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 LogReaderService logReaderService;
  41
  42         private NodeLogger logger;
  43         private CmsState nodeState;
  44         private CmsDeployment nodeDeployment;
  45         private CmsInstance nodeInstance;
  46
  47         @Override
  48         public void start(BundleContext bundleContext) throws Exception {
  49                 Runtime.getRuntime().addShutdownHook(new CmsShutdown());
  50                 instance = this;
  51                 this.bc = bundleContext;
  52                 this.logReaderService = getService(LogReaderService.class);
  53
  54                 try {
  55                         initSecurity();
  56                         initArgeoLogger();
  57                         initNode();
  58                         log.debug("Kernel bundle started");
  59                 } catch (Throwable e) {
  60                         log.error("## FATAL: CMS activator failed", e);
  61                 }
  62         }
  63
  64         private void initSecurity() {
  65                 if (System.getProperty(KernelConstants.JAAS_CONFIG_PROP) == null) {
  66                         String jaasConfig = KernelConstants.JAAS_CONFIG;
  67                         URL url = getClass().getClassLoader().getResource(jaasConfig);
  68                         // System.setProperty(KernelConstants.JAAS_CONFIG_PROP,
  69                         // url.toExternalForm());
  70                         KernelUtils.setJaasConfiguration(url);
  71                 }
  72                 // explicitly load JAAS configuration
  73                 Configuration.getConfiguration();
  74
  75                 // ConditionalPermissionAdmin permissionAdmin = bc
  76                 // .getService(bc.getServiceReference(ConditionalPermissionAdmin.class));
  77                 // ConditionalPermissionUpdate update =
  78                 // permissionAdmin.newConditionalPermissionUpdate();
  79                 // // Self
  80                 // update.getConditionalPermissionInfos()
  81                 // .add(permissionAdmin.newConditionalPermissionInfo(null,
  82                 // new ConditionInfo[] {
  83                 // new ConditionInfo(BundleLocationCondition.class.getName(), new
  84                 // String[] { "*" }) },
  85                 // new PermissionInfo[] { new
  86                 // PermissionInfo(AllPermission.class.getName(), null, null) },
  87                 // ConditionalPermissionInfo.ALLOW));
  88                 //
  89         }
  90
  91         private void initArgeoLogger() {
  92                 logger = new NodeLogger(logReaderService);
  93                 bc.registerService(ArgeoLogger.class, logger, null);
  94         }
  95
  96         private void initNode() throws IOException {
  97                 // Node state
  98                 Path stateUuidPath = bc.getDataFile("stateUuid").toPath();
  99                 String stateUuid;
 100                 if (Files.exists(stateUuidPath)) {
 101                         stateUuid = Files.readAllLines(stateUuidPath).get(0);
 102                 } else {
 103                         stateUuid = bc.getProperty(Constants.FRAMEWORK_UUID);
 104                         Files.write(stateUuidPath, stateUuid.getBytes());
 105                 }
 106                 nodeState = new CmsState(stateUuid);
 107                 Dictionary<String, Object> regProps = LangUtils.dico(Constants.SERVICE_PID, NodeConstants.NODE_STATE_PID);
 108                 regProps.put(NodeConstants.CN, stateUuid);
 109                 bc.registerService(NodeState.class, nodeState, regProps);
 110
 111                 // Node deployment
 112                 nodeDeployment = new CmsDeployment();
 113                 bc.registerService(NodeDeployment.class, nodeDeployment, null);
 114
 115                 // Node instance
 116                 nodeInstance = new CmsInstance();
 117                 bc.registerService(NodeInstance.class, nodeInstance, null);
 118         }
 119
 120         @Override
 121         public void stop(BundleContext bundleContext) throws Exception {
 122                 try {
 123                         if (nodeInstance != null)
 124                                 nodeInstance.shutdown();
 125                         if (nodeDeployment != null)
 126                                 nodeDeployment.shutdown();
 127                         if (nodeState != null)
 128                                 nodeState.shutdown();
 129
 130                         instance = null;
 131                         this.bc = null;
 132                         this.logReaderService = null;
 133                         // this.configurationAdmin = null;
 134                 } catch (Exception e) {
 135                         log.error("CMS activator shutdown failed", e);
 136                 }
 137         }
 138
 139         private <T> T getService(Class<T> clazz) {
 140                 ServiceReference<T> sr = bc.getServiceReference(clazz);
 141                 if (sr == null)
 142                         throw new CmsException("No service available for " + clazz);
 143                 return bc.getService(sr);
 144         }
 145
 146         public static NodeState getNodeState() {
 147                 return instance.nodeState;
 148         }
 149
 150         public static GSSCredential getAcceptorCredentials() {
 151                 return getNodeUserAdmin().getAcceptorCredentials();
 152         }
 153
 154         public static boolean isSingleUser() {
 155                 return getNodeUserAdmin().isSingleUser();
 156         }
 157
 158         private static NodeUserAdmin getNodeUserAdmin() {
 159                 ServiceReference<UserAdmin> sr = instance.bc.getServiceReference(UserAdmin.class);
 160                 NodeUserAdmin userAdmin = (NodeUserAdmin) instance.bc.getService(sr);
 161                 return userAdmin;
 162
 163         }
 164
 165         // static CmsSecurity getCmsSecurity() {
 166         // return instance.nodeSecurity;
 167         // }
 168
 169         public String[] getLocales() {
 170                 // TODO optimize?
 171                 List<Locale> locales = getNodeState().getLocales();
 172                 String[] res = new String[locales.size()];
 173                 for (int i = 0; i < locales.size(); i++)
 174                         res[i] = locales.get(i).toString();
 175                 return res;
 176         }
 177
 178 }