org.apache.commons.modeler.util
Class IntrospectionUtils
public final
class
IntrospectionUtils
extends Object
Utils for introspection and reflection
Source: jakarta-tomcat-connector/util
Method Summary |
static void | addJarsFromClassPath(Vector jars, String cp)
add elements from the classpath cp to a Vector
jars as file URLs (We use Vector for JDK 1.1 compat).
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static void | addToClassPath(Vector cpV, String dir) Add all the jar files in a dir to the classpath,
represented as a Vector of URLs. |
static void | addToolsJar(Vector v) |
static void | callMain(Class c, String[] args) |
static Object | callMethod0(Object target, String methodN) |
static Object | callMethod1(Object target, String methodN, Object param1, String typeParam1, ClassLoader cl) |
static Object | callMethodN(Object target, String methodN, Object[] params, Class[] typeParams) |
static String | capitalize(String name) Reverse of Introspector.decapitalize |
static String | classPathAdd(URL[] urls, String cp)
Adds classpath entries from a vector of URL's to the
"tc_path_add" System property. |
static void | clear() |
static void | displayClassPath(String msg, URL[] cp) Debug method, display the classpath |
static void | execute(Object proxy, String method) Execute a no-param method. |
static String[] | findBooleanSetters(Class c) |
static Method | findMethod(Class c, String name, Class[] params) |
static Method[] | findMethods(Class c) |
static String[] | findVoidSetters(Class c) |
static Object | getAttribute(Object proxy, String n)
Call void getAttribute( String ) |
static URL[] | getClassPath(Vector v) Return a URL[] that can be used to construct a class loader |
static URL[] | getClassPath(String dir, String cpath, String cpathProp, boolean addTools) Construct a URL classpath from files in a directory,
a cpath property, and tools.jar. |
static String[] | getFilesByExt(String ld, String ext) Return all files with a given extension in a dir |
static Object | getProperty(Object o, String name) |
static URL | getURL(String base, String file) Construct a file url from a file, using a base dir |
static ClassLoader | getURLClassLoader(URL[] urls, ClassLoader parent) Construct a URLClassLoader. |
static String | guessInstall(String installSysProp, String homeSysProp, String jarName) |
static String | guessInstall(String installSysProp, String homeSysProp, String jarName, String classFile) Guess a product install/home by analyzing the class path.
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static boolean | hasHook(Object obj, String methodN) Test if the object implements a particular
method |
static boolean | processArgs(Object proxy, String[] args) |
static boolean | processArgs(Object proxy, String[] args, String[] args0, String[] args1, Hashtable aliases) |
static String | replaceProperties(String value, Object getter) Replace ${NAME} with the property value |
static String | replaceProperties(String value, Hashtable staticProp, IntrospectionUtils.PropertySource[] dynamicProp) Replace ${NAME} with the property value |
static void | setAttribute(Object proxy, String n, Object v)
Call void setAttribute( String ,Object ) |
static void | setProperty(Object o, String name, String value) Find a method with the right name
If found, call the method ( if param is int or boolean we'll convert
value to the right type before) - that means you can have setDebug(1). |
static void | setProperty(Object o, String name) |
static String | unCapitalize(String name) |
public static String PATH_SEPARATOR
public static void addJarsFromClassPath(Vector jars, String cp)
add elements from the classpath
cp to a Vector
jars as file URLs (We use Vector for JDK 1.1 compat).
Parameters: jars A vector of URLs cp a String classpath of directory or jar file
elements separated by path.separator delimiters.
public static void addToClassPath(Vector cpV, String dir)
Add all the jar files in a dir to the classpath,
represented as a Vector of URLs.
public static void addToolsJar(Vector v)
public static void callMain(Class c, String[] args)
public static Object callMethod0(Object target, String methodN)
public static Object callMethod1(Object target, String methodN, Object param1, String typeParam1, ClassLoader cl)
public static Object callMethodN(Object target, String methodN, Object[] params, Class[] typeParams)
public static String capitalize(String name)
Reverse of Introspector.decapitalize
public static String classPathAdd(URL[] urls, String cp)
Adds classpath entries from a vector of URL's to the
"tc_path_add" System property. This System property lists
the classpath entries common to web applications. This System
property is currently used by Jasper when its JSP servlet
compiles the Java file for a JSP.
public static void clear()
public static void displayClassPath(String msg, URL[] cp)
Debug method, display the classpath
public static void execute(Object proxy, String method)
Execute a no-param method.
public static String[] findBooleanSetters(Class c)
public static Method findMethod(Class c, String name, Class[] params)
public static Method[] findMethods(Class c)
public static String[] findVoidSetters(Class c)
public static Object getAttribute(Object proxy, String n)
Call void getAttribute( String )
public static URL[] getClassPath(Vector v)
Return a URL[] that can be used to construct a class loader
public static URL[] getClassPath(String dir, String cpath, String cpathProp, boolean addTools)
Construct a URL classpath from files in a directory,
a cpath property, and tools.jar.
public static String[] getFilesByExt(String ld, String ext)
Return all files with a given extension in a dir
public static Object getProperty(Object o, String name)
public static URL getURL(String base, String file)
Construct a file url from a file, using a base dir
public static ClassLoader getURLClassLoader(URL[] urls, ClassLoader parent)
Construct a URLClassLoader. Will compile and work in JDK1.1 too.
public static String guessInstall(String installSysProp, String homeSysProp, String jarName)
public static String guessInstall(String installSysProp, String homeSysProp, String jarName, String classFile)
Guess a product install/home by analyzing the class path.
It works for product using the pattern: lib/executable.jar
or if executable.jar is included in classpath by a shell
script. ( java -jar also works )
Insures both "install" and "home" System properties are set.
If either or both System properties are unset, "install" and
"home" will be set to the same value. This value will be
the other System property that is set, or the guessed value
if neither is set.
public static boolean hasHook(Object obj, String methodN)
Test if the object implements a particular
method
public static boolean processArgs(Object proxy, String[] args)
public static boolean processArgs(Object proxy, String[] args, String[] args0, String[] args1, Hashtable aliases)
public static String replaceProperties(String value, Object getter)
Deprecated: Use the explicit method
Replace ${NAME} with the property value
Replace ${NAME} with the property value
public static void setAttribute(Object proxy, String n, Object v)
Call void setAttribute( String ,Object )
public static void setProperty(Object o, String name, String value)
Find a method with the right name
If found, call the method ( if param is int or boolean we'll convert
value to the right type before) - that means you can have setDebug(1).
public static void setProperty(Object o, String name)
public static String unCapitalize(String name)