--- LogManager.java 2005-02-14 01:12:59.570767976 +0100
+++ formatted/LogManager.java 2005-02-14 01:19:42.020000000 +0100
@@ -103,17 +103,14 @@
* The singleton LogManager instance.
*/
private static LogManager logManager;
-
/**
* The registered named loggers; maps the name of a Logger to
* a WeakReference to it.
*/
private Map loggers;
-
final Logger rootLogger;
-
/**
* The properties for the logging framework which have been
* read in last.
@@ -132,20 +129,19 @@
* behave differently from the reference implementation in
* this case.
*/
- private final PropertyChangeSupport pcs
- = new PropertyChangeSupport(/* source bean */ LogManager.class);
+ private final PropertyChangeSupport pcs = new PropertyChangeSupport( /* source bean */
+ LogManager.class);
protected LogManager()
{
if (logManager != null)
- throw new IllegalStateException(
- "there can be only one LogManager; use LogManager.getLogManager()");
+ throw new IllegalStateException("there can be only one LogManager; use LogManager.getLogManager()");
logManager = this;
loggers = new java.util.HashMap();
rootLogger = new Logger("", null);
addLogger(rootLogger);
-
+
/* Make sure that Logger.global has the rootLogger as its parent.
*
* Logger.global is set during class initialization of Logger,
@@ -166,7 +162,6 @@
Logger.getLogger("global").setUseParentHandlers(true);
}
-
/**
* Returns the globally shared LogManager instance.
*/
@@ -176,32 +171,30 @@
}
static
- {
- makeLogManager();
-
- /* The Javadoc description of the class explains
- * what is going on here.
- */
- Object configurator = createInstance(
- System.getProperty("java.util.logging.config.class"),
- /* must be instance of */ Object.class);
-
- try
- {
- if (configurator == null)
- getLogManager().readConfiguration();
- }
- catch (IOException ex)
{
- /* FIXME: Is it ok to ignore exceptions here? */
+ makeLogManager();
+
+ /* The Javadoc description of the class explains
+ * what is going on here.
+ */
+ Object configurator = createInstance(System.getProperty("java.util.logging.config.class"),
+ /* must be instance of */ Object.class);
+
+ try
+ {
+ if (configurator == null)
+ getLogManager().readConfiguration();
+ }
+ catch (IOException ex)
+ {
+ /* FIXME: Is it ok to ignore exceptions here? */
+ }
}
- }
-
private static LogManager makeLogManager()
{
- String managerClassName;
- LogManager manager;
+ String managerClassName;
+ LogManager manager;
managerClassName = System.getProperty("java.util.logging.manager");
manager = (LogManager) createInstance(managerClassName, LogManager.class);
@@ -210,12 +203,11 @@
if (managerClassName != null)
System.err.println("WARNING: System property \"java.util.logging.manager\""
- + " should be the name of a subclass of java.util.logging.LogManager");
+ + " should be the name of a subclass of java.util.logging.LogManager");
return new LogManager();
}
-
/**
* Registers a listener which will be notified when the
* logging properties are re-read.
@@ -228,7 +220,6 @@
pcs.addPropertyChangeListener(listener);
}
-
/**
* Unregisters a listener.
*
@@ -242,7 +233,6 @@
pcs.removePropertyChangeListener(listener);
}
-
/**
* Adds a named logger. If a logger with the same name has
* already been registered, the method returns false
@@ -271,9 +261,8 @@
* that LogManager does its synchronization on the globally
* shared instance of LogManager.
*/
-
String name;
- WeakReference ref;
+ WeakReference ref;
/* This will throw a NullPointerException if logger is null,
* as required by the API specification.
@@ -282,18 +271,18 @@
ref = (WeakReference) loggers.get(name);
if (ref != null)
- {
- if (ref.get() != null)
- return false;
+ {
+ if (ref.get() != null)
+ return false;
- /* There has been a logger under this name in the past,
- * but it has been garbage collected.
- */
- loggers.remove(ref);
- }
+ /* There has been a logger under this name in the past,
+ * but it has been garbage collected.
+ */
+ loggers.remove(ref);
+ }
/* Adding a named logger requires a security permission. */
- if ((name != null) && !name.equals(""))
+ if ((name != null) && ! name.equals(""))
checkAccess();
Logger parent = findAncestor(logger);
@@ -308,27 +297,28 @@
* its parent to "foo.bar".
*/
if (parent != rootLogger)
- {
- for (Iterator iter = loggers.keySet().iterator(); iter.hasNext();)
{
- Logger possChild = (Logger) ((WeakReference) loggers.get(iter.next())).get();
- if ((possChild == null) || (possChild == logger) || (possChild.getParent() != parent))
- continue;
+ for (Iterator iter = loggers.keySet().iterator(); iter.hasNext();)
+ {
+ Logger possChild = (Logger) ((WeakReference) loggers.get(iter.next()))
+ .get();
+ if ((possChild == null) || (possChild == logger)
+ || (possChild.getParent() != parent))
+ continue;
- if (!possChild.getName().startsWith(name))
- continue;
+ if (! possChild.getName().startsWith(name))
+ continue;
- if (possChild.getName().charAt(name.length()) != '.')
- continue;
+ if (possChild.getName().charAt(name.length()) != '.')
+ continue;
- possChild.setParent(logger);
+ possChild.setParent(logger);
+ }
}
- }
return true;
}
-
/**
* Finds the closest ancestor for a logger among the currently
* registered ones. For example, if the currently registered
@@ -348,40 +338,39 @@
private synchronized Logger findAncestor(Logger child)
{
String childName = child.getName();
- int childNameLength = childName.length();
+ int childNameLength = childName.length();
Logger best = rootLogger;
- int bestNameLength = 0;
+ int bestNameLength = 0;
- Logger cand;
- String candName;
- int candNameLength;
+ Logger cand;
+ String candName;
+ int candNameLength;
if (child == rootLogger)
return null;
for (Iterator iter = loggers.keySet().iterator(); iter.hasNext();)
- {
- candName = (String) iter.next();
- candNameLength = candName.length();
-
- if (candNameLength > bestNameLength
- && childNameLength > candNameLength
- && childName.startsWith(candName)
- && childName.charAt(candNameLength) == '.')
{
- cand = (Logger) ((WeakReference) loggers.get(candName)).get();
- if ((cand == null) || (cand == child))
- continue;
+ candName = (String) iter.next();
+ candNameLength = candName.length();
+
+ if (candNameLength > bestNameLength
+ && childNameLength > candNameLength
+ && childName.startsWith(candName)
+ && childName.charAt(candNameLength) == '.')
+ {
+ cand = (Logger) ((WeakReference) loggers.get(candName)).get();
+ if ((cand == null) || (cand == child))
+ continue;
- bestNameLength = candName.length();
- best = cand;
+ bestNameLength = candName.length();
+ best = cand;
+ }
}
- }
return best;
}
-
/**
* Returns a Logger given its name.
*
@@ -395,7 +384,7 @@
*/
public synchronized Logger getLogger(String name)
{
- WeakReference ref;
+ WeakReference ref;
/* Throw a NullPointerException if name is null. */
name.getClass();
@@ -407,7 +396,6 @@
return null;
}
-
/**
* Returns an Enumeration of currently registered Logger names.
* Since other threads can register loggers at any time, the
@@ -421,7 +409,6 @@
return Collections.enumeration(loggers.keySet());
}
-
/**
* Resets the logging configuration by removing all handlers for
* registered named loggers and setting their level to null.
@@ -431,8 +418,7 @@
* the caller is not granted the permission to control
* the logging infrastructure.
*/
- public synchronized void reset()
- throws SecurityException
+ public synchronized void reset() throws SecurityException
{
/* Throw a SecurityException if the caller does not have the
* permission to control the logging infrastructure.
@@ -443,26 +429,25 @@
Iterator iter = loggers.values().iterator();
while (iter.hasNext())
- {
- WeakReference ref;
- Logger logger;
-
- ref = (WeakReference) iter.next();
- if (ref != null)
{
- logger = (Logger) ref.get();
+ WeakReference ref;
+ Logger logger;
- if (logger == null)
- iter.remove();
- else if (logger != rootLogger)
- logger.setLevel(null);
+ ref = (WeakReference) iter.next();
+ if (ref != null)
+ {
+ logger = (Logger) ref.get();
+
+ if (logger == null)
+ iter.remove();
+ else if (logger != rootLogger)
+ logger.setLevel(null);
+ }
}
- }
rootLogger.setLevel(Level.INFO);
}
-
/**
* Configures the logging framework by reading a configuration file.
* The name and location of this file are specified by the system
@@ -488,97 +473,96 @@
public synchronized void readConfiguration()
throws IOException, SecurityException
{
- String path;
- InputStream inputStream;
+ String path;
+ InputStream inputStream;
path = System.getProperty("java.util.logging.config.file");
if ((path == null) || (path.length() == 0))
- {
- String url = (System.getProperty("gnu.classpath.home.url")
- + "/logging.properties");
- inputStream = new URL(url).openStream();
- }
+ {
+ String url = (System.getProperty("gnu.classpath.home.url")
+ + "/logging.properties");
+ inputStream = new URL(url).openStream();
+ }
else
- {
inputStream = new java.io.FileInputStream(path);
- }
try
- {
- readConfiguration(inputStream);
- }
+ {
+ readConfiguration(inputStream);
+ }
finally
- {
- /* Close the stream in order to save
- * resources such as file descriptors.
- */
- inputStream.close();
- }
+ {
+ /* Close the stream in order to save
+ * resources such as file descriptors.
+ */
+ inputStream.close();
+ }
}
-
public synchronized void readConfiguration(InputStream inputStream)
throws IOException, SecurityException
- {
- Properties newProperties;
- Enumeration keys;
+ {
+ Properties newProperties;
+ Enumeration keys;
checkAccess();
newProperties = new Properties();
newProperties.load(inputStream);
- this.properties = newProperties;
+ this.properties = newProperties;
keys = newProperties.propertyNames();
while (keys.hasMoreElements())
- {
- String key = ((String) keys.nextElement()).trim();
- String value = newProperties.getProperty(key);
-
- if (value == null)
- continue;
-
- value = value.trim();
-
- if("handlers".equals(key))
- {
- StringTokenizer tokenizer = new StringTokenizer(value);
- while(tokenizer.hasMoreTokens())
- {
- String handlerName = tokenizer.nextToken();
- try
- {
- Class handlerClass = Class.forName(handlerName);
- getLogger("").addHandler((Handler)handlerClass.newInstance());
- }
- catch (ClassCastException ex)
- {
- System.err.println("[LogManager] class " + handlerName + " is not subclass of java.util.logging.Handler");
- }
- catch (Exception ex)
- {
- //System.out.println("[LogManager.readConfiguration]"+ex);
- }
- }
- }
-
- if (key.endsWith(".level"))
{
- String loggerName = key.substring(0, key.length() - 6);
- Logger logger = getLogger(loggerName);
- if (logger != null)
- {
- try
+ String key = ((String) keys.nextElement()).trim();
+ String value = newProperties.getProperty(key);
+
+ if (value == null)
+ continue;
+
+ value = value.trim();
+
+ if ("handlers".equals(key))
{
- logger.setLevel(Level.parse(value));
+ StringTokenizer tokenizer = new StringTokenizer(value);
+ while (tokenizer.hasMoreTokens())
+ {
+ String handlerName = tokenizer.nextToken();
+ try
+ {
+ Class handlerClass = Class.forName(handlerName);
+ getLogger("").addHandler((Handler) handlerClass
+ .newInstance());
+ }
+ catch (ClassCastException ex)
+ {
+ System.err.println("[LogManager] class " + handlerName
+ + " is not subclass of java.util.logging.Handler");
+ }
+ catch (Exception ex)
+ {
+ //System.out.println("[LogManager.readConfiguration]"+ex);
+ }
+ }
}
- catch (Exception _)
+
+ if (key.endsWith(".level"))
{
- //System.out.println("[LogManager.readConfiguration] "+_);
+ String loggerName = key.substring(0, key.length() - 6);
+ Logger logger = getLogger(loggerName);
+ if (logger != null)
+ {
+ try
+ {
+ logger.setLevel(Level.parse(value));
+ }
+ catch (Exception _)
+ {
+ //System.out.println("[LogManager.readConfiguration] "+_);
+ }
+ continue;
+ }
}
- continue;
- }
}
- }
/* The API specification does not talk about the
* property name that is distributed with the
@@ -589,7 +573,6 @@
pcs.firePropertyChange(null, null, null);
}
-
/**
* Returns the value of a configuration property as a String.
*/
@@ -601,7 +584,6 @@
return null;
}
-
/**
* Returns the value of a configuration property as an integer.
* This function is a helper used by the Classpath implementation
@@ -617,16 +599,15 @@
static int getIntProperty(String name, int defaultValue)
{
try
- {
- return Integer.parseInt(getLogManager().getProperty(name));
- }
+ {
+ return Integer.parseInt(getLogManager().getProperty(name));
+ }
catch (Exception ex)
- {
- return defaultValue;
- }
+ {
+ return defaultValue;
+ }
}
-
/**
* Returns the value of a configuration property as an integer,
* provided it is inside the acceptable range.
@@ -646,7 +627,7 @@
* or if it is greater than the maximum value.
*/
static int getIntPropertyClamped(String name, int defaultValue,
- int minValue, int maxValue)
+ int minValue, int maxValue)
{
int val = getIntProperty(name, defaultValue);
if ((val < minValue) || (val > maxValue))
@@ -654,7 +635,6 @@
return val;
}
-
/**
* Returns the value of a configuration property as a boolean.
* This function is a helper used by the Classpath implementation
@@ -670,17 +650,15 @@
static boolean getBooleanProperty(String name, boolean defaultValue)
{
try
- {
- return (new Boolean(getLogManager().getProperty(name)))
- .booleanValue();
- }
+ {
+ return (new Boolean(getLogManager().getProperty(name))).booleanValue();
+ }
catch (Exception ex)
- {
- return defaultValue;
- }
+ {
+ return defaultValue;
+ }
}
-
/**
* Returns the value of a configuration property as a Level.
* This function is a helper used by the Classpath implementation
@@ -697,16 +675,15 @@
static Level getLevelProperty(String propertyName, Level defaultValue)
{
try
- {
- return Level.parse(getLogManager().getProperty(propertyName));
- }
+ {
+ return Level.parse(getLogManager().getProperty(propertyName));
+ }
catch (Exception ex)
- {
- return defaultValue;
- }
+ {
+ return defaultValue;
+ }
}
-
/**
* Returns the value of a configuration property as a Class.
* This function is a helper used by the Classpath implementation
@@ -724,64 +701,60 @@
Class usingClass = null;
try
- {
- String propertyValue = logManager.getProperty(propertyName);
- if (propertyValue != null)
- usingClass = Class.forName(propertyValue);
- if (usingClass != null)
- return usingClass;
- }
+ {
+ String propertyValue = logManager.getProperty(propertyName);
+ if (propertyValue != null)
+ usingClass = Class.forName(propertyValue);
+ if (usingClass != null)
+ return usingClass;
+ }
catch (Exception _)
- {
- }
+ {
+ }
return defaultValue;
}
-
- static final Object getInstanceProperty(String propertyName,
- Class ofClass,
- Class defaultClass)
+ static final Object getInstanceProperty(String propertyName, Class ofClass,
+ Class defaultClass)
{
Class klass = getClassProperty(propertyName, defaultClass);
if (klass == null)
return null;
try
- {
- Object obj = klass.newInstance();
- if (ofClass.isInstance(obj))
- return obj;
- }
+ {
+ Object obj = klass.newInstance();
+ if (ofClass.isInstance(obj))
+ return obj;
+ }
catch (Exception _)
- {
- }
+ {
+ }
if (defaultClass == null)
return null;
try
- {
- return defaultClass.newInstance();
- }
+ {
+ return defaultClass.newInstance();
+ }
catch (java.lang.InstantiationException ex)
- {
- throw new RuntimeException(ex.getMessage());
- }
+ {
+ throw new RuntimeException(ex.getMessage());
+ }
catch (java.lang.IllegalAccessException ex)
- {
- throw new RuntimeException(ex.getMessage());
- }
+ {
+ throw new RuntimeException(ex.getMessage());
+ }
}
-
/**
* An instance of LoggingPermission("control")
* that is shared between calls to checkAccess().
*/
- private static final LoggingPermission controlPermission
- = new LoggingPermission("control", null);
-
+ private static final LoggingPermission controlPermission = new LoggingPermission("control",
+ null);
/**
* Checks whether the current security context allows changing
@@ -793,21 +766,19 @@
* the caller is not granted the permission to control
* the logging infrastructure.
*/
- public void checkAccess()
- throws SecurityException
+ public void checkAccess() throws SecurityException
{
SecurityManager sm = System.getSecurityManager();
if (sm != null)
sm.checkPermission(controlPermission);
}
-
- /**
+ /**
* Creates a new instance of a class specified by name.
*
* @param className the name of the class of which a new instance
* should be created.
- *
+ *
* @param ofClass the class to which the new instance should
* be either an instance or an instance of a subclass.
* FIXME: This description is just terrible.
@@ -820,26 +791,26 @@
*/
static final Object createInstance(String className, Class ofClass)
{
- Class klass;
+ Class klass;
if ((className == null) || (className.length() == 0))
return null;
try
- {
- klass = Class.forName(className);
- if (!ofClass.isAssignableFrom(klass))
- return null;
+ {
+ klass = Class.forName(className);
+ if (! ofClass.isAssignableFrom(klass))
+ return null;
- return klass.newInstance();
- }
+ return klass.newInstance();
+ }
catch (Exception _)
- {
- return null;
- }
+ {
+ return null;
+ }
catch (java.lang.LinkageError _)
- {
- return null;
- }
+ {
+ return null;
+ }
}
}