Package org.summerboot.jexpress.util

Class ApplicationUtil

java.lang.Object

org.summerboot.jexpress.util.ApplicationUtil

public class ApplicationUtil
extends Object

Author:

Changski Tie Zheng Zhang 张铁铮, 魏泽北, 杜旺财, 杜富贵

Field Summary

Fields

Modifier and Type	Field	Description
static final String[]	EMPTY_ARGS
protected static final String	JAVA_COMMAND_SUN	Sun property pointing the main class and its arguments.
static final String	RESOURCE_PATH

Constructor Summary

Constructors

Constructor	Description
ApplicationUtil()

Method Summary

Modifier and Type	Method	Description
static Map<Object,Set<String>>	checkDuplicateFields(Class errorCodeClass, Class fieldClass)
static Path	createIfNotExist(String location, ClassLoader classLoader, String srcFileName, String destFileName)
static String[]	getApplicationArgs()
static Set<String>	getClassNamesFromJarFile(File jarFile)
static String	getServerName(boolean exitWhenFail)
static Set<Class<?>>	loadClassFromJarFile(File jarFile, boolean failOnUndefinedClasses)
static boolean	scanJVM_StartCommand(StringBuilder cmd)	java -XshowSettings:properties -version

Methods inherited from class java.lang.Object

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

Field Details

EMPTY_ARGS

public static final String[] EMPTY_ARGS

JAVA_COMMAND_SUN

protected static final String JAVA_COMMAND_SUN

Sun property pointing the main class and its arguments. Might not be defined on non Hotspot VM implementations.

See Also:

• Constant Field Values

RESOURCE_PATH

public static final String RESOURCE_PATH

See Also:

• Constant Field Values

Constructor Details

ApplicationUtil

public ApplicationUtil()

Method Details

getApplicationArgs

public static String[] getApplicationArgs()

scanJVM_StartCommand

public static boolean scanJVM_StartCommand(StringBuilder cmd)

java -XshowSettings:properties -version

Parameters:

cmd -

Returns:

true if JMX is required

checkDuplicateFields

public static Map<Object,Set<String>> checkDuplicateFields(Class errorCodeClass,
 Class fieldClass)
                                                    throws IllegalArgumentException,
IllegalAccessException

Throws:

IllegalArgumentException

IllegalAccessException

getServerName

public static String getServerName(boolean exitWhenFail)

getClassNamesFromJarFile

public static Set<String> getClassNamesFromJarFile(File jarFile)
                                            throws IOException

Throws:

IOException

loadClassFromJarFile

public static Set<Class<?>> loadClassFromJarFile(File jarFile,
 boolean failOnUndefinedClasses)
                                          throws IOException

Throws:

IOException

createIfNotExist

public static Path createIfNotExist(String location,
 ClassLoader classLoader,
 String srcFileName,
 String destFileName)