org.argeo.cms/src/org/argeo/cms/internal/kernel/Activator.java

   1 package org.argeo.cms.internal.kernel;
   2
   3 import java.awt.image.Kernel;
   4 import java.io.IOException;
   5 import java.net.URL;
   6 import java.nio.file.Files;
   7 import java.nio.file.Path;
   8 import java.util.Dictionary;
   9 import java.util.List;
  10 import java.util.Locale;
  11
  12 import javax.security.auth.login.Configuration;
  13
  14 import org.apache.commons.logging.Log;
  15 import org.apache.commons.logging.LogFactory;
  16 import org.argeo.cms.CmsException;
  17 import org.argeo.node.ArgeoLogger;
  18 import org.argeo.node.NodeConstants;
  19 import org.argeo.node.NodeDeployment;
  20 import org.argeo.node.NodeInstance;
  21 import org.argeo.node.NodeState;
  22 import org.argeo.util.LangUtils;
  23 import org.ietf.jgss.GSSCredential;
  24 import org.osgi.framework.BundleActivator;
  25 import org.osgi.framework.BundleContext;
  26 import org.osgi.framework.Constants;
  27 import org.osgi.framework.ServiceReference;
  28 import org.osgi.service.log.LogReaderService;
  29 import org.osgi.service.useradmin.UserAdmin;
  30
  31 /**
  32  * Activates the {@link Kernel} from the provided {@link BundleContext}. Gives
  33  * access to kernel information for the rest of the bundle (and only it)
  34  */
  35 public class Activator implements BundleActivator {
  36         private final static Log log = LogFactory.getLog(Activator.class);
  37
  38         private static Activator instance;
  39
  40         private BundleContext bc;
  41         // private CmsSecurity nodeSecurity;
  42         private LogReaderService logReaderService;
  43         // private ConfigurationAdmin configurationAdmin;
  44
  45         private NodeLogger logger;
  46         private CmsState nodeState;
  47         private CmsDeployment nodeDeployment;
  48         private CmsInstance nodeInstance;
  49
  50         @Override
  51         public void start(BundleContext bundleContext) throws Exception {
  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                         // throw new CmsException("Cannot initialize node", 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, url.toExternalForm());
  73                 }
  74                 // explicitly load JAAS configuration
  75                 Configuration.getConfiguration();
  76         }
  77
  78         private void initArgeoLogger() {
  79                 logger = new NodeLogger(logReaderService);
  80                 bc.registerService(ArgeoLogger.class, logger, null);
  81         }
  82
  83         private void initNode() throws IOException {
  84                 // Node state
  85                 Path stateUuidPath = bc.getDataFile("stateUuid").toPath();
  86                 String stateUuid;
  87                 if (Files.exists(stateUuidPath)) {
  88                         stateUuid = Files.readAllLines(stateUuidPath).get(0);
  89                 } else {
  90                         stateUuid = bc.getProperty(Constants.FRAMEWORK_UUID);
  91                         Files.write(stateUuidPath, stateUuid.getBytes());
  92                 }
  93                 nodeState = new CmsState(stateUuid);
  94                 Dictionary<String, Object> regProps = LangUtils.dico(Constants.SERVICE_PID, NodeConstants.NODE_STATE_PID);
  95                 regProps.put(NodeConstants.CN, stateUuid);
  96                 bc.registerService(NodeState.class, nodeState, regProps);
  97
  98                 // Node deployment
  99                 nodeDeployment = new CmsDeployment();
 100                 bc.registerService(NodeDeployment.class, nodeDeployment, null);
 101
 102                 // Node instance
 103                 nodeInstance = new CmsInstance();
 104                 bc.registerService(NodeInstance.class, nodeInstance, null);
 105         }
 106
 107         @Override
 108         public void stop(BundleContext bundleContext) throws Exception {
 109                 nodeInstance.shutdown();
 110                 nodeDeployment.shutdown();
 111                 nodeState.shutdown();
 112
 113                 instance = null;
 114                 this.bc = null;
 115                 this.logReaderService = null;
 116                 // this.configurationAdmin = null;
 117         }
 118
 119         private <T> T getService(Class<T> clazz) {
 120                 ServiceReference<T> sr = bc.getServiceReference(clazz);
 121                 if (sr == null)
 122                         throw new CmsException("No service available for " + clazz);
 123                 return bc.getService(sr);
 124         }
 125
 126         public static NodeState getNodeState() {
 127                 return instance.nodeState;
 128         }
 129
 130         public static GSSCredential getAcceptorCredentials() {
 131                 ServiceReference<UserAdmin> sr = instance.bc.getServiceReference(UserAdmin.class);
 132                 NodeUserAdmin userAdmin = (NodeUserAdmin) instance.bc.getService(sr);
 133                 return userAdmin.getAcceptorCredentials();
 134         }
 135
 136         // static CmsSecurity getCmsSecurity() {
 137         // return instance.nodeSecurity;
 138         // }
 139
 140         public String[] getLocales() {
 141                 // TODO optimize?
 142                 List<Locale> locales = getNodeState().getLocales();
 143                 String[] res = new String[locales.size()];
 144                 for (int i = 0; i < locales.size(); i++)
 145                         res[i] = locales.get(i).toString();
 146                 return res;
 147         }
 148
 149 }