org.apache.tomcat.util.compat

Class JdkCompat

java.lang.Object

org.apache.tomcat.util.compat.JdkCompat

Direct Known Subclasses:

Jdk14Compat

public class JdkCompat
extends 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

Fields

Modifier and Type	Field and Description
static String	JAVA_1_0
static String	JAVA_1_1
static String	JAVA_1_2
static String	JAVA_1_3
static String	JAVA_1_4

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	JdkCompat() Default no-arg constructor

Method Summary

Modifier and Type	Method and Description
static 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.
String	getPartialServletStackTrace(Throwable t) Print out a partial servlet stack trace (truncating at the last occurrence of javax.servlet.).
URL	getURI(File file) Return the URI for the given file.
static boolean	isJava14()
static boolean	isJava2()
String[]	split(String path, 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 String JAVA_1_0

See Also:

Constant Field Values

JAVA_1_1

public static final String JAVA_1_1

See Also:

Constant Field Values

JAVA_1_2

public static final String JAVA_1_2

See Also:

Constant Field Values

JAVA_1_3

public static final String JAVA_1_3

See Also:

Constant Field Values

JAVA_1_4

public static final String JAVA_1_4

See Also:

Constant Field Values

Constructor Detail

JdkCompat

protected JdkCompat()

Default no-arg constructor

Method Detail

getJavaVersion

public static 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 URL getURI(File file)
           throws MalformedURLException

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

Parameters:

File - to wrap into URI

Returns:

A URI as a URL

Throws:

MalformedURLException

getMaxMemory

public long getMaxMemory()

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

getPartialServletStackTrace

public String getPartialServletStackTrace(Throwable t)

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

split

public String[] split(String path,
                      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