org.apache.tomcat.util.compat
Class JdkCompat

java.lang.Object
  org.apache.tomcat.util.compat.JdkCompat

Direct Known Subclasses:

Jdk14Compat

public class JdkCompat

extends java.lang.Object

General-purpose utility to provide backward-compatibility and JDK independence. This allow use of JDK1.3 ( or higher ) facilities if available, while maintaining the code compatible with older VMs. The goal is to make backward-compatiblity reasonably easy. The base class supports JDK1.3 behavior.

Author:

Tim Funk

Field Summary

static java.lang.String	JAVA_1_0
static java.lang.String	JAVA_1_1
static java.lang.String	JAVA_1_2
static java.lang.String	JAVA_1_3
static java.lang.String	JAVA_1_4

Constructor Summary

protected

JdkCompat() Default no-arg constructor

Method Summary

static java.lang.String	getJavaVersion() Return java version as a string
static JdkCompat	getJdkCompat() Get a compatibiliy helper class.
long	getMaxMemory() Return the maximum amount of memory the JVM will attempt to use.
java.lang.String	getPartialServletStackTrace(java.lang.Throwable t) Print out a partial servlet stack trace (truncating at the last occurrence of javax.servlet.).
java.net.URL	getURI(java.io.File file) Return the URI for the given file.
static boolean	isJava14()
static boolean	isJava2()
java.lang.String[]	split(java.lang.String path, java.lang.String pat) Splits a string into it's components.

Methods inherited from class java.lang.Object

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

Field Detail

JAVA_1_0

public static final java.lang.String JAVA_1_0

See Also:

Constant Field Values

JAVA_1_1

public static final java.lang.String JAVA_1_1

See Also:

Constant Field Values

JAVA_1_2

public static final java.lang.String JAVA_1_2

See Also:

Constant Field Values

JAVA_1_3

public static final java.lang.String JAVA_1_3

See Also:

Constant Field Values

JAVA_1_4

public static final java.lang.String JAVA_1_4

See Also:

Constant Field Values

Constructor Detail

JdkCompat

protected JdkCompat()

Default no-arg constructor

Method Detail

getJavaVersion

public static java.lang.String getJavaVersion()

Return java version as a string

isJava2

public static boolean isJava2()

isJava14

public static boolean isJava14()

getJdkCompat

public static JdkCompat getJdkCompat()

Get a compatibiliy helper class.

getURI

public java.net.URL getURI(java.io.File file)
                    throws java.net.MalformedURLException

Return the URI for the given file. Originally created for o.a.c.loader.WebappClassLoader

Returns:

A URI as a URL

Throws:

java.net.MalformedURLException

getMaxMemory

public long getMaxMemory()

Return the maximum amount of memory the JVM will attempt to use.

getPartialServletStackTrace

public java.lang.String getPartialServletStackTrace(java.lang.Throwable t)

Print out a partial servlet stack trace (truncating at the last occurrence of javax.servlet.).

split

public java.lang.String[] split(java.lang.String path,
                                java.lang.String pat)

Splits a string into it's components.

Parameters:

path - String to split

pat - Pattern to split at

Returns:

the components of the path