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.osgi.framework.BundleActivator;
  23 import org.osgi.framework.BundleContext;
  24 import org.osgi.framework.Constants;
  25 import org.osgi.framework.ServiceReference;
  26 import org.osgi.service.log.LogReaderService;
  27
  28 /**
  29  * Activates the {@link Kernel} from the provided {@link BundleContext}. Gives
  30  * access to kernel information for the rest of the bundle (and only it)
  31  */
  32 public class Activator implements BundleActivator {
  33         private final static Log log = LogFactory.getLog(Activator.class);
  34
  35         private static Activator instance;
  36
  37         private BundleContext bc;
  38         private LogReaderService logReaderService;
  39         // private ConfigurationAdmin configurationAdmin;
  40
  41         private NodeLogger logger;
  42         private CmsState nodeState;
  43         private CmsDeployment nodeDeployment;
  44         private CmsInstance nodeInstance;
  45
  46         @Override
  47         public void start(BundleContext bundleContext) throws Exception {
  48                 instance = this;
  49                 this.bc = bundleContext;
  50                 this.logReaderService = getService(LogReaderService.class);
  51                 // this.configurationAdmin = getService(ConfigurationAdmin.class);
  52
  53                 try {
  54                         initSecurity();// must be first
  55                         initArgeoLogger();
  56                         initNode();
  57                 } catch (Exception e) {
  58                         log.error("## FATAL: CMS activator failed", e);
  59                         // throw new CmsException("Cannot initialize node", e);
  60                 }
  61         }
  62
  63         private void initSecurity() {
  64                 if (System.getProperty(KernelConstants.JAAS_CONFIG_PROP) == null) {
  65                         URL url = getClass().getClassLoader().getResource(KernelConstants.JAAS_CONFIG);
  66                         // URL url =
  67                         // getClass().getClassLoader().getResource(KernelConstants.JAAS_CONFIG_IPA);
  68                         System.setProperty(KernelConstants.JAAS_CONFIG_PROP, url.toExternalForm());
  69                 }
  70                 Configuration.getConfiguration();
  71         }
  72
  73         private void initArgeoLogger() {
  74                 logger = new NodeLogger(logReaderService);
  75                 bc.registerService(ArgeoLogger.class, logger, null);
  76         }
  77
  78         private void initNode() throws IOException {
  79                 // Node state
  80                 Path stateUuidPath = bc.getDataFile("stateUuid").toPath();
  81                 String stateUuid;
  82                 if (Files.exists(stateUuidPath)) {
  83                         stateUuid = Files.readAllLines(stateUuidPath).get(0);
  84                 } else {
  85                         stateUuid = bc.getProperty(Constants.FRAMEWORK_UUID);
  86                         Files.write(stateUuidPath, stateUuid.getBytes());
  87                 }
  88                 nodeState = new CmsState(stateUuid);
  89                 Dictionary<String, Object> regProps = LangUtils.dico(Constants.SERVICE_PID, NodeConstants.NODE_STATE_PID);
  90                 regProps.put(NodeConstants.CN, stateUuid);
  91                 bc.registerService(NodeState.class, nodeState, regProps);
  92
  93                 // Node deployment
  94                 nodeDeployment = new CmsDeployment();
  95                 bc.registerService(NodeDeployment.class, nodeDeployment, null);
  96
  97                 // Node instance
  98                 nodeInstance = new CmsInstance();
  99                 bc.registerService(NodeInstance.class, nodeInstance, null);
 100         }
 101
 102         @Override
 103         public void stop(BundleContext bundleContext) throws Exception {
 104                 nodeInstance.shutdown();
 105                 nodeDeployment.shutdown();
 106                 nodeState.shutdown();
 107
 108                 instance = null;
 109                 this.bc = null;
 110                 this.logReaderService = null;
 111                 // this.configurationAdmin = null;
 112         }
 113
 114         private <T> T getService(Class<T> clazz) {
 115                 ServiceReference<T> sr = bc.getServiceReference(clazz);
 116                 if (sr == null)
 117                         throw new CmsException("No service available for " + clazz);
 118                 return bc.getService(sr);
 119         }
 120
 121         public static NodeState getNodeState() {
 122                 return instance.nodeState;
 123         }
 124
 125         public String[] getLocales() {
 126                 // TODO optimize?
 127                 List<Locale> locales = getNodeState().getLocales();
 128                 String[] res = new String[locales.size()];
 129                 for (int i = 0; i < locales.size(); i++)
 130                         res[i] = locales.get(i).toString();
 131                 return res;
 132         }
 133
 134 }