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         final static String OSGI_FRAMEWORK_UUID = "org.osgi.framework.uuid";
  26
  27         static void setJaasConfiguration(URL jaasConfigurationUrl) {
  28                 try {
  29                         URIParameter uriParameter = new URIParameter(jaasConfigurationUrl.toURI());
  30                         javax.security.auth.login.Configuration jaasConfiguration = javax.security.auth.login.Configuration
  31                                         .getInstance("JavaLoginConfig", uriParameter);
  32                         javax.security.auth.login.Configuration.setConfiguration(jaasConfiguration);
  33                 } catch (Exception e) {
  34                         throw new IllegalArgumentException("Cannot set configuration " + jaasConfigurationUrl, e);
  35                 }
  36         }
  37
  38         static Dictionary<String, ?> asDictionary(Properties props) {
  39                 Hashtable<String, Object> hashtable = new Hashtable<String, Object>();
  40                 for (Object key : props.keySet()) {
  41                         hashtable.put(key.toString(), props.get(key));
  42                 }
  43                 return hashtable;
  44         }
  45
  46         static Dictionary<String, ?> asDictionary(ClassLoader cl, String resource) {
  47                 Properties props = new Properties();
  48                 try {
  49                         props.load(cl.getResourceAsStream(resource));
  50                 } catch (IOException e) {
  51                         throw new IllegalArgumentException("Cannot load " + resource + " from classpath", e);
  52                 }
  53                 return asDictionary(props);
  54         }
  55
  56         static Path getExecutionDir(String relativePath) {
  57                 Path executionDir = Paths.get(getFrameworkProp("user.dir"));
  58                 if (relativePath == null)
  59                         return executionDir;
  60                 return executionDir.resolve(relativePath);
  61         }
  62
  63         public static Path getOsgiInstancePath(String relativePath) {
  64                 URI uri = getOsgiInstanceUri(relativePath);
  65                 if (uri == null) // no data area available
  66                         return null;
  67                 return Paths.get(uri);
  68         }
  69
  70         public static Path getOsgiConfigurationPath(String relativePath) {
  71                 URI uri = getOsgiConfigurationUri(relativePath);
  72                 if (uri == null) // no data area available
  73                         return null;
  74                 return Paths.get(uri);
  75         }
  76
  77         public static URI getOsgiInstanceUri(String relativePath) {
  78                 String osgiInstanceBaseUri = getFrameworkProp(OSGI_INSTANCE_AREA);
  79                 if (osgiInstanceBaseUri == null) // no data area available
  80                         return null;
  81
  82                 if (!osgiInstanceBaseUri.endsWith("/"))
  83                         osgiInstanceBaseUri = osgiInstanceBaseUri + "/";
  84                 return safeUri(osgiInstanceBaseUri + (relativePath != null ? relativePath : ""));
  85         }
  86
  87         public static URI getOsgiConfigurationUri(String relativePath) {
  88                 String osgiInstanceBaseUri = getFrameworkProp(OSGI_CONFIGURATION_AREA);
  89                 if (osgiInstanceBaseUri == null) // no data area available
  90                         return null;
  91
  92                 if (!osgiInstanceBaseUri.endsWith("/"))
  93                         osgiInstanceBaseUri = osgiInstanceBaseUri + "/";
  94                 return safeUri(osgiInstanceBaseUri + (relativePath != null ? relativePath : ""));
  95         }
  96
  97         static String getFrameworkProp(String key, String def) {
  98                 String value;
  99                 value = CmsActivator.getFrameworkProperty(key);
 100                 if (value == null)
 101                         value = System.getProperty(key);
 102                 if (value == null)
 103                         return def;
 104                 return value;
 105         }
 106
 107         static String getFrameworkProp(String key) {
 108                 return getFrameworkProp(key, null);
 109         }
 110
 111         static void logFrameworkProperties(CmsLog log) {
 112                 for (Object sysProp : new TreeSet<Object>(System.getProperties().keySet())) {
 113                         log.debug(sysProp + "=" + getFrameworkProp(sysProp.toString()));
 114                 }
 115         }
 116
 117         static void printSystemProperties(PrintStream out) {
 118                 TreeMap<String, String> display = new TreeMap<>();
 119                 for (Object key : System.getProperties().keySet())
 120                         display.put(key.toString(), System.getProperty(key.toString()));
 121                 for (String key : display.keySet())
 122                         out.println(key + "=" + display.get(key));
 123         }
 124
 125         static boolean asBoolean(String value) {
 126                 if (value == null)
 127                         return false;
 128                 switch (value) {
 129                 case "true":
 130                         return true;
 131                 case "false":
 132                         return false;
 133                 default:
 134                         throw new IllegalArgumentException("Unsupported value for boolean attribute : " + value);
 135                 }
 136         }
 137
 138         private static URI safeUri(String uri) {
 139                 if (uri == null)
 140                         throw new IllegalArgumentException("URI cannot be null");
 141                 try {
 142                         // FIXME does not work if URI contains illegal characters (such as spaces, etc.)
 143                         return new URI(uri);
 144                 } catch (URISyntaxException e) {
 145                         throw new IllegalArgumentException("Badly formatted URI " + uri, e);
 146                 }
 147         }
 148
 149         private KernelUtils() {
 150
 151         }
 152 }