public final class ClassLoaderUtils extends Object
| Modifier and Type | Method and Description |
|---|---|
static ClassLoader |
getContextClassLoader()
Dynamically accesses the current context class loader.
|
static URL |
getResource(String name)
Locates the resource with the specified name.
|
static URL |
getResource(String name,
ClassLoader callerClassLoader)
Locates the resource with the specified name.
|
static InputStream |
getResourceAsStream(String name)
Locates the stream resource with the specified name.
|
static InputStream |
getResourceAsStream(String name,
ClassLoader callerClassLoader)
Locates the resource stream with the specified name.
|
static <T> T |
getService(Class<T> service)
Instantiate the first registered services from a file in /META-INF/services.
|
static <T> T |
getService(String service)
Instantiate the first registered services from a file in /META-INF/services.
|
static <T> List<T> |
getServices(Class<T> service)
Instantiate all available services from a file in /META-INF/services.
|
static <T> List<T> |
getServices(String service)
Instantiate all available services from a file in /META-INF/services.
|
static Class<?> |
loadClass(String name)
Loads the class with the specified name.
|
static Class<?> |
loadClass(String name,
ClassLoader callerClassLoader)
Loads the class with the specified name.
|
public static Class<?> loadClass(String name) throws ClassNotFoundException
name - the name of the classClass objectClassNotFoundException - if the class was not foundpublic static URL getResource(String name)
name - the name of the resourceURL objectpublic static InputStream getResourceAsStream(String name)
name - the name of the resourceInputStream objectpublic static Class<?> loadClass(String name, ClassLoader callerClassLoader) throws ClassNotFoundException
name - the name of the classcallerClassLoader - the calling class loader contextClass objectClassNotFoundException - if the class was not foundpublic static URL getResource(String name, ClassLoader callerClassLoader)
name - the name of the resourcecallerClassLoader - the calling class loader contextURL objectpublic static InputStream getResourceAsStream(String name, ClassLoader callerClassLoader)
name - the name of the resourcecallerClassLoader - the calling class loader contextInputStream objectpublic static ClassLoader getContextClassLoader()
public static <T> T getService(Class<T> service)
service - the classname of the abstract service class.
eg: javax.servlet.FiltergetService(String),
getServices(Class),
getServices(String)public static <T> T getService(String service)
service - the classname of the abstract service class.
eg: javax.servlet.FiltergetService(Class),
getServices(String),
getServices(Class)public static <T> List<T> getServices(Class<T> service)
public static <T> List<T> getServices(String service)
The following is an excerpt from the JAR File specification: A service provider identifies itself by placing a provider-configuration file in the resource directory META-INF/services. The file's name should consist of the fully-qualified name of the abstract service class. The file should contain a newline-separated list of unique concrete provider-class names. Space and tab characters, as well as blank lines, are ignored. The comment character is '#' (0x23); on each line all characters following the first comment character are ignored. The file must be encoded in UTF-8.
service - the classname of the abstract service class.
eg: javax.servlet.FiltergetServices(Class),
getService(Class),
getService(String)Copyright © 2001-2017 The Apache Software Foundation. All Rights Reserved.