internal/runtime/KernelUtils.java

   1 package org.argeo.cms.internal.runtime;
   2
   3 import java.io.IOException;
   4 import java.io.PrintStream;
   5 import java.net.URI;
   6 import java.net.URISyntaxException;
   7 import java.net.URL;
   8 import java.nio.file.Path;
   9 import java.nio.file.Paths;
  10 import java.security.URIParameter;
  11 import java.util.Dictionary;
  12 import java.util.Hashtable;
  13 import java.util.Properties;
  14 import java.util.TreeMap;
  15 import java.util.TreeSet;
  16
  17 import org.argeo.api.cms.CmsLog;
  18 import org.argeo.cms.internal.osgi.CmsActivator;
  19
  20 /** Package utilities */
  21 class KernelUtils implements KernelConstants {
  22         final static String OSGI_INSTANCE_AREA = "osgi.instance.area";
  23         final static String OSGI_CONFIGURATION_AREA = "osgi.configuration.area";
  24
  25         static void setJaasConfiguration(URL jaasConfigurationUrl) {
  26                 try {
  27                         URIParameter uriParameter = new URIParameter(jaasConfigurationUrl.toURI());
  28                         javax.security.auth.login.Configuration jaasConfiguration = javax.security.auth.login.Configuration
  29                                         .getInstance("JavaLoginConfig", uriParameter);
  30                         javax.security.auth.login.Configuration.setConfiguration(jaasConfiguration);
  31                 } catch (Exception e) {
  32                         throw new IllegalArgumentException("Cannot set configuration " + jaasConfigurationUrl, e);
  33                 }
  34         }
  35
  36         static Dictionary<String, ?> asDictionary(Properties props) {
  37                 Hashtable<String, Object> hashtable = new Hashtable<String, Object>();
  38                 for (Object key : props.keySet()) {
  39                         hashtable.put(key.toString(), props.get(key));
  40                 }
  41                 return hashtable;
  42         }
  43
  44         static Dictionary<String, ?> asDictionary(ClassLoader cl, String resource) {
  45                 Properties props = new Properties();
  46                 try {
  47                         props.load(cl.getResourceAsStream(resource));
  48                 } catch (IOException e) {
  49                         throw new IllegalArgumentException("Cannot load " + resource + " from classpath", e);
  50                 }
  51                 return asDictionary(props);
  52         }
  53
  54         static Path getExecutionDir(String relativePath) {
  55                 Path executionDir = Paths.get(getFrameworkProp("user.dir"));
  56                 if (relativePath == null)
  57                         return executionDir;
  58                 return executionDir.resolve(relativePath);
  59         }
  60
  61         public static Path getOsgiInstancePath(String relativePath) {
  62                 URI uri = getOsgiInstanceUri(relativePath);
  63                 if (uri == null) // no data area available
  64                         return null;
  65                 return Paths.get(uri);
  66         }
  67
  68         public static URI getOsgiInstanceUri(String relativePath) {
  69                 String osgiInstanceBaseUri = getFrameworkProp(OSGI_INSTANCE_AREA);
  70                 if (osgiInstanceBaseUri == null) // no data area available
  71                         return null;
  72
  73                 if (!osgiInstanceBaseUri.endsWith("/"))
  74                         osgiInstanceBaseUri = osgiInstanceBaseUri + "/";
  75                 return safeUri(osgiInstanceBaseUri + (relativePath != null ? relativePath : ""));
  76         }
  77
  78         static String getFrameworkProp(String key, String def) {
  79                 String value;
  80                 if (CmsActivator.getBundleContext() != null)
  81                         value = CmsActivator.getBundleContext().getProperty(key);
  82                 else
  83                         value = System.getProperty(key);
  84                 if (value == null)
  85                         return def;
  86                 return value;
  87         }
  88
  89         static String getFrameworkProp(String key) {
  90                 return getFrameworkProp(key, null);
  91         }
  92
  93         static void logFrameworkProperties(CmsLog log) {
  94                 for (Object sysProp : new TreeSet<Object>(System.getProperties().keySet())) {
  95                         log.debug(sysProp + "=" + getFrameworkProp(sysProp.toString()));
  96                 }
  97         }
  98
  99         static void printSystemProperties(PrintStream out) {
 100                 TreeMap<String, String> display = new TreeMap<>();
 101                 for (Object key : System.getProperties().keySet())
 102                         display.put(key.toString(), System.getProperty(key.toString()));
 103                 for (String key : display.keySet())
 104                         out.println(key + "=" + display.get(key));
 105         }
 106
 107         static boolean asBoolean(String value) {
 108                 if (value == null)
 109                         return false;
 110                 switch (value) {
 111                 case "true":
 112                         return true;
 113                 case "false":
 114                         return false;
 115                 default:
 116                         throw new IllegalArgumentException("Unsupported value for boolean attribute : " + value);
 117                 }
 118         }
 119
 120         private static URI safeUri(String uri) {
 121                 if (uri == null)
 122                         throw new IllegalArgumentException("URI cannot be null");
 123                 try {
 124                         return new URI(uri);
 125                 } catch (URISyntaxException e) {
 126                         throw new IllegalArgumentException("Badly formatted URI " + uri, e);
 127                 }
 128         }
 129
 130         private KernelUtils() {
 131
 132         }
 133 }