org.infinispan.util
Class Util

java.lang.Object
  org.infinispan.util.Util

public final class Util
extends Object

General utility methods used throughout the JBC code base.

Since:

4.0

Author:

Brian Stansberry, Galder Zamarreño

Nested Class Summary

static class

Util.MapModifications Static inner class that holds 3 maps - for data added, removed and modified.

Method Summary

static void	closeInput(ObjectInput i)
static void	closeStream(InputStream i)
static void	flushAndCloseOutput(ObjectOutput o)
static void	flushAndCloseStream(OutputStream o)
static String	formatString(Object message, Object... params)
static <T> T	getInstance(Class<T> clazz)
static Object	getInstance(String classname)
static Class	loadClass(String classname) Loads the specified class using this class's classloader, or, if it is null (i.e.
static InputStream	loadResourceAsStream(String resource)
static String	prettyPrintTime(long millis) Prints a time for display
static String	prettyPrintTime(long time, TimeUnit unit)
static boolean	safeEquals(Object a, Object b) Null-safe equality test.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

loadClass

public static Class loadClass(String classname)
                       throws ClassNotFoundException

Loads the specified class using this class's classloader, or, if it is null (i.e. this class was loaded by the bootstrap classloader), the system classloader.

If loadtime instrumentation via GenerateInstrumentedClassLoader is used, this class may be loaded by the bootstrap classloader.

Parameters:

classname - name of the class to load

Returns:

the class

Throws:

ClassNotFoundException

getInstance

public static <T> T getInstance(Class<T> clazz)
                     throws IllegalAccessException,
                            InstantiationException

Throws:

IllegalAccessException

InstantiationException

getInstance

public static Object getInstance(String classname)
                          throws ClassNotFoundException,
                                 IllegalAccessException,
                                 InstantiationException

Throws:

ClassNotFoundException

IllegalAccessException

InstantiationException

safeEquals

public static boolean safeEquals(Object a,
                                 Object b)

Null-safe equality test.

Parameters:

a - first object to compare

b - second object to compare

Returns:

true if the objects are equals or both null, false otherwise.

loadResourceAsStream

public static InputStream loadResourceAsStream(String resource)

prettyPrintTime

public static String prettyPrintTime(long time,
                                     TimeUnit unit)

prettyPrintTime

public static String prettyPrintTime(long millis)

Prints a time for display

Parameters:

millis - time in millis

Returns:

the time, represented as millis, seconds, minutes or hours as appropriate, with suffix

closeStream

public static void closeStream(InputStream i)

closeInput

public static void closeInput(ObjectInput i)

flushAndCloseStream

public static void flushAndCloseStream(OutputStream o)

flushAndCloseOutput

public static void flushAndCloseOutput(ObjectOutput o)

formatString

public static String formatString(Object message,
                                  Object... params)