KernelUtils.java

   1 package org.argeo.cms.internal.kernel;
   2
   3 import java.io.File;
   4 import java.io.IOException;
   5 import java.io.PrintStream;
   6 import java.net.URI;
   7 import java.net.URISyntaxException;
   8 import java.net.URL;
   9 import java.nio.file.Path;
  10 import java.nio.file.Paths;
  11 import java.security.URIParameter;
  12 import java.util.Dictionary;
  13 import java.util.Hashtable;
  14 import java.util.Properties;
  15 import java.util.TreeMap;
  16 import java.util.TreeSet;
  17
  18 import org.apache.commons.logging.Log;
  19 import org.argeo.api.DataModelNamespace;
  20 import org.osgi.framework.BundleContext;
  21 import org.osgi.util.tracker.ServiceTracker;
  22
  23 /** Package utilities */
  24 class KernelUtils implements KernelConstants {
  25         final static String OSGI_INSTANCE_AREA = "osgi.instance.area";
  26         final static String OSGI_CONFIGURATION_AREA = "osgi.configuration.area";
  27
  28         static void setJaasConfiguration(URL jaasConfigurationUrl) {
  29                 try {
  30                         URIParameter uriParameter = new URIParameter(jaasConfigurationUrl.toURI());
  31                         javax.security.auth.login.Configuration jaasConfiguration = javax.security.auth.login.Configuration
  32                                         .getInstance("JavaLoginConfig", uriParameter);
  33                         javax.security.auth.login.Configuration.setConfiguration(jaasConfiguration);
  34                 } catch (Exception e) {
  35                         throw new IllegalArgumentException("Cannot set configuration " + jaasConfigurationUrl, e);
  36                 }
  37         }
  38
  39         static Dictionary<String, ?> asDictionary(Properties props) {
  40                 Hashtable<String, Object> hashtable = new Hashtable<String, Object>();
  41                 for (Object key : props.keySet()) {
  42                         hashtable.put(key.toString(), props.get(key));
  43                 }
  44                 return hashtable;
  45         }
  46
  47         static Dictionary<String, ?> asDictionary(ClassLoader cl, String resource) {
  48                 Properties props = new Properties();
  49                 try {
  50                         props.load(cl.getResourceAsStream(resource));
  51                 } catch (IOException e) {
  52                         throw new IllegalArgumentException("Cannot load " + resource + " from classpath", e);
  53                 }
  54                 return asDictionary(props);
  55         }
  56
  57         static File getExecutionDir(String relativePath) {
  58                 File executionDir = new File(getFrameworkProp("user.dir"));
  59                 if (relativePath == null)
  60                         return executionDir;
  61                 try {
  62                         return new File(executionDir, relativePath).getCanonicalFile();
  63                 } catch (IOException e) {
  64                         throw new IllegalArgumentException("Cannot get canonical file", e);
  65                 }
  66         }
  67
  68         static File getOsgiInstanceDir() {
  69                 return new File(getBundleContext().getProperty(OSGI_INSTANCE_AREA).substring("file:".length()))
  70                                 .getAbsoluteFile();
  71         }
  72
  73         static Path getOsgiInstancePath(String relativePath) {
  74                 return Paths.get(getOsgiInstanceUri(relativePath));
  75         }
  76
  77         static URI getOsgiInstanceUri(String relativePath) {
  78                 String osgiInstanceBaseUri = getFrameworkProp(OSGI_INSTANCE_AREA);
  79                 if (osgiInstanceBaseUri != null)
  80                         return safeUri(osgiInstanceBaseUri + (relativePath != null ? relativePath : ""));
  81                 else
  82                         return Paths.get(System.getProperty("user.dir")).toUri();
  83         }
  84
  85         static File getOsgiConfigurationFile(String relativePath) {
  86                 try {
  87                         return new File(new URI(getBundleContext().getProperty(OSGI_CONFIGURATION_AREA) + relativePath))
  88                                         .getCanonicalFile();
  89                 } catch (Exception e) {
  90                         throw new IllegalArgumentException("Cannot get configuration file for " + relativePath, e);
  91                 }
  92         }
  93
  94         static String getFrameworkProp(String key, String def) {
  95                 BundleContext bundleContext = Activator.getBundleContext();
  96                 String value;
  97                 if (bundleContext != null)
  98                         value = bundleContext.getProperty(key);
  99                 else
 100                         value = System.getProperty(key);
 101                 if (value == null)
 102                         return def;
 103                 return value;
 104         }
 105
 106         static String getFrameworkProp(String key) {
 107                 return getFrameworkProp(key, null);
 108         }
 109
 110         // Security
 111         // static Subject anonymousLogin() {
 112         // Subject subject = new Subject();
 113         // LoginContext lc;
 114         // try {
 115         // lc = new LoginContext(NodeConstants.LOGIN_CONTEXT_USER, subject);
 116         // lc.login();
 117         // return subject;
 118         // } catch (LoginException e) {
 119         // throw new CmsException("Cannot login as anonymous", e);
 120         // }
 121         // }
 122
 123         static void logFrameworkProperties(Log log) {
 124                 BundleContext bc = getBundleContext();
 125                 for (Object sysProp : new TreeSet<Object>(System.getProperties().keySet())) {
 126                         log.debug(sysProp + "=" + bc.getProperty(sysProp.toString()));
 127                 }
 128                 // String[] keys = { Constants.FRAMEWORK_STORAGE,
 129                 // Constants.FRAMEWORK_OS_NAME, Constants.FRAMEWORK_OS_VERSION,
 130                 // Constants.FRAMEWORK_PROCESSOR, Constants.FRAMEWORK_SECURITY,
 131                 // Constants.FRAMEWORK_TRUST_REPOSITORIES,
 132                 // Constants.FRAMEWORK_WINDOWSYSTEM, Constants.FRAMEWORK_VENDOR,
 133                 // Constants.FRAMEWORK_VERSION, Constants.FRAMEWORK_STORAGE_CLEAN,
 134                 // Constants.FRAMEWORK_LANGUAGE, Constants.FRAMEWORK_UUID };
 135                 // for (String key : keys)
 136                 // log.debug(key + "=" + bc.getProperty(key));
 137         }
 138
 139         static void printSystemProperties(PrintStream out) {
 140                 TreeMap<String, String> display = new TreeMap<>();
 141                 for (Object key : System.getProperties().keySet())
 142                         display.put(key.toString(), System.getProperty(key.toString()));
 143                 for (String key : display.keySet())
 144                         out.println(key + "=" + display.get(key));
 145         }
 146
 147 //      static Session openAdminSession(Repository repository) {
 148 //              return openAdminSession(repository, null);
 149 //      }
 150 //
 151 //      static Session openAdminSession(final Repository repository, final String workspaceName) {
 152 //              LoginContext loginContext = loginAsDataAdmin();
 153 //              return Subject.doAs(loginContext.getSubject(), new PrivilegedAction<Session>() {
 154 //
 155 //                      @Override
 156 //                      public Session run() {
 157 //                              try {
 158 //                                      return repository.login(workspaceName);
 159 //                              } catch (RepositoryException e) {
 160 //                                      throw new IllegalStateException("Cannot open admin session", e);
 161 //                              } finally {
 162 //                                      try {
 163 //                                              loginContext.logout();
 164 //                                      } catch (LoginException e) {
 165 //                                              throw new IllegalStateException(e);
 166 //                                      }
 167 //                              }
 168 //                      }
 169 //
 170 //              });
 171 //      }
 172 //
 173 //      static LoginContext loginAsDataAdmin() {
 174 //              ClassLoader currentCl = Thread.currentThread().getContextClassLoader();
 175 //              Thread.currentThread().setContextClassLoader(KernelUtils.class.getClassLoader());
 176 //              LoginContext loginContext;
 177 //              try {
 178 //                      loginContext = new LoginContext(NodeConstants.LOGIN_CONTEXT_DATA_ADMIN);
 179 //                      loginContext.login();
 180 //              } catch (LoginException e1) {
 181 //                      throw new IllegalStateException("Could not login as data admin", e1);
 182 //              } finally {
 183 //                      Thread.currentThread().setContextClassLoader(currentCl);
 184 //              }
 185 //              return loginContext;
 186 //      }
 187
 188 //      static void doAsDataAdmin(Runnable action) {
 189 //              LoginContext loginContext = loginAsDataAdmin();
 190 //              Subject.doAs(loginContext.getSubject(), new PrivilegedAction<Void>() {
 191 //
 192 //                      @Override
 193 //                      public Void run() {
 194 //                              try {
 195 //                                      action.run();
 196 //                                      return null;
 197 //                              } finally {
 198 //                                      try {
 199 //                                              loginContext.logout();
 200 //                                      } catch (LoginException e) {
 201 //                                              throw new IllegalStateException(e);
 202 //                                      }
 203 //                              }
 204 //                      }
 205 //
 206 //              });
 207 //      }
 208
 209         static void asyncOpen(ServiceTracker<?, ?> st) {
 210                 Runnable run = new Runnable() {
 211
 212                         @Override
 213                         public void run() {
 214                                 st.open();
 215                         }
 216                 };
 217                 Activator.getInternalExecutorService().execute(run);
 218 //              new Thread(run, "Open service tracker " + st).start();
 219         }
 220
 221         static BundleContext getBundleContext() {
 222                 return Activator.getBundleContext();
 223         }
 224
 225         static boolean asBoolean(String value) {
 226                 if (value == null)
 227                         return false;
 228                 switch (value) {
 229                 case "true":
 230                         return true;
 231                 case "false":
 232                         return false;
 233                 default:
 234                         throw new IllegalArgumentException(
 235                                         "Unsupported value for attribute " + DataModelNamespace.ABSTRACT + ": " + value);
 236                 }
 237         }
 238
 239         private static URI safeUri(String uri) {
 240                 if (uri == null)
 241                         throw new IllegalArgumentException("URI cannot be null");
 242                 try {
 243                         return new URI(uri);
 244                 } catch (URISyntaxException e) {
 245                         throw new IllegalArgumentException("Badly formatted URI " + uri, e);
 246                 }
 247         }
 248
 249         private KernelUtils() {
 250
 251         }
 252 }