/*
* Read multiple resource files from the classpaths given the file name.
* This method is designed as package visibility to improve performance when
* called by anonymous inner classes.
*
* @param name - the name of the resource file @param existingProps -
* existing properties, cannot be null @param filter - to filter properties
*/
static Hashtable<Object, Object> readMultipleResourceFiles(
final String name, final Hashtable<Object, Object> existingProps, ClassLoader cl)
throws NamingException {
if (null == cl) {
cl = ClassLoader.getSystemClassLoader();
}
Enumeration<URL> e = null;
try {
// Load all resource files
e = cl.getResources(name);
} catch (final IOException ex) {
// Unexpected ClassLoader exception
// jndi.23=Failed to load JNDI resource files.
final ConfigurationException newEx =
new ConfigurationException(Messages.getString("jndi.23")); // $NON-NLS-1$
newEx.setRootCause(ex);
throw newEx;
}
// Read all the loaded properties and merge
URL url = null;
InputStream is = null;
final Properties p = new Properties();
while (e.hasMoreElements()) {
url = e.nextElement();
try {
if (null != (is = url.openStream())) {
p.load(is);
mergeEnvironment(p, existingProps, true);
p.clear();
}
} catch (final IOException ex) {
// Can't read this resource file
// jndi.24=Failed to read JNDI resource files.
final ConfigurationException newEx =
new ConfigurationException(Messages.getString("jndi.24")); // $NON-NLS-1$
newEx.setRootCause(ex);
throw newEx;
} finally {
try {
if (null != is) {
is.close();
}
} catch (final IOException ex) {
// Ignore closing exception
} finally {
is = null;
}
}
}
return existingProps;
}
/*
* Read the properties file "java.home"/lib/jndi.properties. Pay attention
* to the privileged code for accessing this external resource file. This is
* required if JNDI is run in Applet or other applications which only have
* limited permissions to access certain resources.
*
* @param existingProps - existing properties, cannot be null.
*/
public static Hashtable<Object, Object> readLibraryResourceFile(
final Hashtable<Object, Object> existingProps) throws NamingException {
final String sep = System.getProperty("file.separator"); // $NON-NLS-1$
String resPath = null;
// Construct the full filename of "java.home"/lib/jndi.properties
resPath =
AccessController.doPrivileged(
new PrivilegedAction<String>() {
@Override
public String run() {
return System.getProperty("java.home"); // $NON-NLS-1$
}
});
if (!resPath.endsWith(sep)) {
resPath += sep;
}
resPath += "lib" + sep + APPLICATION_RESOURCE_FILE; // $NON-NLS-1$
// Try to read this properties if it exists
InputStream is = null;
final File resFile = new File(resPath);
final Properties p = new Properties();
// Use privileged code to determine whether the file exists
final boolean resFileExists =
AccessController.doPrivileged(
new PrivilegedAction<Boolean>() {
@Override
public Boolean run() {
return Boolean.valueOf(resFile.exists());
}
})
.booleanValue();
if (resFileExists) {
try {
// Use privileged code to read the file
is =
AccessController.doPrivileged(
new PrivilegedExceptionAction<FileInputStream>() {
@Override
public FileInputStream run() throws IOException {
final FileInputStream localInputStream = new FileInputStream(resFile);
p.load(localInputStream);
return localInputStream;
}
});
mergeEnvironment(p, existingProps, true);
} catch (final PrivilegedActionException e) {
// Can't read "java.home"/lib/jndi.properties
// jndi.25=Failed to read JNDI resource files in java home
// library.
final ConfigurationException newEx =
new ConfigurationException(Messages.getString("jndi.25")); // $NON-NLS-1$
newEx.setRootCause(e.getException());
throw newEx;
} finally {
try {
if (null != is) {
is.close();
}
} catch (final IOException ex) {
// Ignore closing exception
}
}
}
return existingProps;
}