Package org.apache.commons.modeler.util
Class IntrospectionUtils
- java.lang.Object
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- org.apache.commons.modeler.util.IntrospectionUtils
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public final class IntrospectionUtils extends Object
Utils for introspection and reflection Source: jakarta-tomcat-connector/util
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Nested Class Summary
Nested Classes Modifier and Type Class Description static interface
IntrospectionUtils.AttributeHolder
static interface
IntrospectionUtils.PropertySource
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Field Summary
Fields Modifier and Type Field Description static String
PATH_SEPARATOR
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Constructor Summary
Constructors Constructor Description IntrospectionUtils()
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Method Summary
All Methods Static Methods Concrete Methods Deprecated Methods Modifier and Type Method Description 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).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.decapitalizestatic 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 classpathstatic 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(String dir, String cpath, String cpathProp, boolean addTools)
Construct a URL classpath from files in a directory, a cpath property, and tools.jar.static URL[]
getClassPath(Vector v)
Return a URL[] that can be used to construct a class loaderstatic String[]
getFilesByExt(String ld, String ext)
Return all files with a given extension in a dirstatic Object
getProperty(Object o, String name)
static URL
getURL(String base, String file)
Construct a file url from a file, using a base dirstatic 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.static boolean
hasHook(Object obj, String methodN)
Test if the object implements a particular methodstatic 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)
Deprecated.Use the explicit methodstatic String
replaceProperties(String value, Hashtable staticProp, IntrospectionUtils.PropertySource[] dynamicProp)
Replace ${NAME} with the property valuestatic void
setAttribute(Object proxy, String n, Object v)
Call void setAttribute( String ,Object )static void
setProperty(Object o, String name)
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 String
unCapitalize(String name)
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Field Detail
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PATH_SEPARATOR
public static String PATH_SEPARATOR
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Method Detail
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execute
public static void execute(Object proxy, String method) throws Exception
Execute a no-param method.- Throws:
Exception
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setAttribute
public static void setAttribute(Object proxy, String n, Object v) throws Exception
Call void setAttribute( String ,Object )- Throws:
Exception
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getAttribute
public static Object getAttribute(Object proxy, String n) throws Exception
Call void getAttribute( String )- Throws:
Exception
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getURLClassLoader
public static ClassLoader getURLClassLoader(URL[] urls, ClassLoader parent)
Construct a URLClassLoader. Will compile and work in JDK1.1 too.
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guessInstall
public static String guessInstall(String installSysProp, String homeSysProp, String jarName)
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guessInstall
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.
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displayClassPath
public static void displayClassPath(String msg, URL[] cp)
Debug method, display the classpath
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classPathAdd
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.
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setProperty
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).
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replaceProperties
public static String replaceProperties(String value, Object getter)
Deprecated.Use the explicit methodReplace ${NAME} with the property value
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replaceProperties
public static String replaceProperties(String value, Hashtable staticProp, IntrospectionUtils.PropertySource[] dynamicProp)
Replace ${NAME} with the property value
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addToClassPath
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.
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addToolsJar
public static void addToolsJar(Vector v)
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getFilesByExt
public static String[] getFilesByExt(String ld, String ext)
Return all files with a given extension in a dir
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getURL
public static URL getURL(String base, String file)
Construct a file url from a file, using a base dir
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addJarsFromClassPath
public static void addJarsFromClassPath(Vector jars, String cp) throws IOException, MalformedURLException
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 URLscp
- a String classpath of directory or jar file elements separated by path.separator delimiters.- Throws:
IOException
MalformedURLException
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getClassPath
public static URL[] getClassPath(Vector v)
Return a URL[] that can be used to construct a class loader
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getClassPath
public static URL[] getClassPath(String dir, String cpath, String cpathProp, boolean addTools) throws IOException, MalformedURLException
Construct a URL classpath from files in a directory, a cpath property, and tools.jar.- Throws:
IOException
MalformedURLException
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processArgs
public static boolean processArgs(Object proxy, String[] args) throws Exception
- Throws:
Exception
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processArgs
public static boolean processArgs(Object proxy, String[] args, String[] args0, String[] args1, Hashtable aliases) throws Exception
- Throws:
Exception
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clear
public static void clear()
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hasHook
public static boolean hasHook(Object obj, String methodN)
Test if the object implements a particular method
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callMethod1
public static Object callMethod1(Object target, String methodN, Object param1, String typeParam1, ClassLoader cl) throws Exception
- Throws:
Exception
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callMethod0
public static Object callMethod0(Object target, String methodN) throws Exception
- Throws:
Exception
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