Package org.apache.lucene.analysis.util

Class ClasspathResourceLoader

java.lang.Object

org.apache.lucene.analysis.util.ClasspathResourceLoader

All Implemented Interfaces:

ResourceLoader

public final class ClasspathResourceLoader
extends Object
implements ResourceLoader

Simple ResourceLoader that uses ClassLoader.getResourceAsStream(String) and Class.forName(String,boolean,ClassLoader) to open resources and classes, respectively.

Field Summary

Fields

Modifier and Type	Field	Description
private final Class<?>	clazz
private final ClassLoader	loader

Constructor Summary

Constructors

Modifier	Constructor	Description
	ClasspathResourceLoader()	Deprecated. You should not use this ctor, because it uses the thread's context class loader, which is bad programming style.
	ClasspathResourceLoader(Class<?> clazz)	Creates an instance using the context classloader to load Resources and classes Resources are resolved relative to the given class, if path is not absolute.
private	ClasspathResourceLoader(Class<?> clazz, ClassLoader loader)
	ClasspathResourceLoader(ClassLoader loader)	Creates an instance using the given classloader to load Resources and classes.

Method Summary

Modifier and Type	Method	Description
<T> Class<? extends T>	findClass(String cname, Class<T> expectedType)	Finds class of the name and expected type
<T> T	newInstance(String cname, Class<T> expectedType)	Creates an instance of the name and expected type
InputStream	openResource(String resource)	Opens a named resource

Methods inherited from class java.lang.Object

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

Field Details

clazz

private final Class<?> clazz

loader

private final ClassLoader loader

Constructor Details

ClasspathResourceLoader

@Deprecated
public ClasspathResourceLoader()

Deprecated.

You should not use this ctor, because it uses the thread's context class loader, which is bad programming style. Please specify a reference class or a ClassLoader instead.

Creates an instance using the context classloader to load resources and classes. Resource paths must be absolute.

See Also:

• ClasspathResourceLoader(ClassLoader)
• ClasspathResourceLoader(Class)

ClasspathResourceLoader

public ClasspathResourceLoader(ClassLoader loader)

Creates an instance using the given classloader to load Resources and classes. Resource paths must be absolute.

ClasspathResourceLoader

public ClasspathResourceLoader(Class<?> clazz)

Creates an instance using the context classloader to load Resources and classes Resources are resolved relative to the given class, if path is not absolute.

ClasspathResourceLoader

private ClasspathResourceLoader(Class<?> clazz,
 ClassLoader loader)

Method Details

openResource

public InputStream openResource(String resource)
                         throws IOException

Description copied from interface: ResourceLoader

Opens a named resource

Specified by:

openResource in interface ResourceLoader

Throws:

IOException

findClass

public <T> Class<? extends T> findClass(String cname,
 Class<T> expectedType)

Description copied from interface: ResourceLoader

Finds class of the name and expected type

Specified by:

findClass in interface ResourceLoader

newInstance

public <T> T newInstance(String cname,
 Class<T> expectedType)

Description copied from interface: ResourceLoader

Creates an instance of the name and expected type

Specified by:

newInstance in interface ResourceLoader