org.argeo.cms/src/org/argeo/cms/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 Path getOsgiConfigurationPath(String relativePath) {
  69                 URI uri = getOsgiConfigurationUri(relativePath);
  70                 if (uri == null) // no data area available
  71                         return null;
  72                 return Paths.get(uri);
  73         }
  74
  75         public static URI getOsgiInstanceUri(String relativePath) {
  76                 String osgiInstanceBaseUri = getFrameworkProp(OSGI_INSTANCE_AREA);
  77                 if (osgiInstanceBaseUri == null) // no data area available
  78                         return null;
  79
  80                 if (!osgiInstanceBaseUri.endsWith("/"))
  81                         osgiInstanceBaseUri = osgiInstanceBaseUri + "/";
  82                 return safeUri(osgiInstanceBaseUri + (relativePath != null ? relativePath : ""));
  83         }
  84
  85         public static URI getOsgiConfigurationUri(String relativePath) {
  86                 String osgiInstanceBaseUri = getFrameworkProp(OSGI_CONFIGURATION_AREA);
  87                 if (osgiInstanceBaseUri == null) // no data area available
  88                         return null;
  89
  90                 if (!osgiInstanceBaseUri.endsWith("/"))
  91                         osgiInstanceBaseUri = osgiInstanceBaseUri + "/";
  92                 return safeUri(osgiInstanceBaseUri + (relativePath != null ? relativePath : ""));
  93         }
  94
  95         static String getFrameworkProp(String key, String def) {
  96                 String value;
  97                 if (CmsActivator.getBundleContext() != null)
  98                         value = CmsActivator.getBundleContext().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         static void logFrameworkProperties(CmsLog log) {
 111                 for (Object sysProp : new TreeSet<Object>(System.getProperties().keySet())) {
 112                         log.debug(sysProp + "=" + getFrameworkProp(sysProp.toString()));
 113                 }
 114         }
 115
 116         static void printSystemProperties(PrintStream out) {
 117                 TreeMap<String, String> display = new TreeMap<>();
 118                 for (Object key : System.getProperties().keySet())
 119                         display.put(key.toString(), System.getProperty(key.toString()));
 120                 for (String key : display.keySet())
 121                         out.println(key + "=" + display.get(key));
 122         }
 123
 124         static boolean asBoolean(String value) {
 125                 if (value == null)
 126                         return false;
 127                 switch (value) {
 128                 case "true":
 129                         return true;
 130                 case "false":
 131                         return false;
 132                 default:
 133                         throw new IllegalArgumentException("Unsupported value for boolean attribute : " + value);
 134                 }
 135         }
 136
 137         private static URI safeUri(String uri) {
 138                 if (uri == null)
 139                         throw new IllegalArgumentException("URI cannot be null");
 140                 try {
 141                         return new URI(uri);
 142                 } catch (URISyntaxException e) {
 143                         throw new IllegalArgumentException("Badly formatted URI " + uri, e);
 144                 }
 145         }
 146
 147         private KernelUtils() {
 148
 149         }
 150 }