URLStreamHandlerFactory (apache-nutch 1.20 API)

java.lang.Object
- org.apache.nutch.plugin.URLStreamHandlerFactory

All Implemented Interfaces:

URLStreamHandlerFactory
```
public class URLStreamHandlerFactory
extends Object
implements URLStreamHandlerFactory
```
This URLStreamHandlerFactory knows about all the plugins in use and thus can create the correct URLStreamHandler even if it comes from a plugin classpath. As the JVM allows only one instance of URLStreamHandlerFactory to be registered, this class implements a singleton pattern.

Author:

Hiran Chaudhuri

Field Summary

Fields
Modifier and Type Field Description

protected static org.slf4j.Logger LOG

static String[] SYSTEM_PROTOCOLS
Protocols covered by standard JVM URL handlers.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`URLStreamHandler`	`createURLStreamHandler(String protocol)`
`static URLStreamHandlerFactory`	`getInstance()`	Get the singleton instance of this class.
`void`	`registerPluginRepository(PluginRepository pr)`	Use this method once a new PluginRepository was created to register it.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - LOG
```
protected static final org.slf4j.Logger LOG
```
  - SYSTEM_PROTOCOLS
```
public static final String[] SYSTEM_PROTOCOLS
```
    Protocols covered by standard JVM URL handlers. These protocols must not be handled by Nutch plugins, in order to avoid that basic actions (eg. loading of classes and configuration files) break.
- Method Detail
  - getInstance
```
public static URLStreamHandlerFactory getInstance()
```
    Get the singleton instance of this class.
    
    Returns:
    
    a URLStreamHandlerFactory instance
  - registerPluginRepository
```
public void registerPluginRepository(PluginRepository pr)
```
    Use this method once a new PluginRepository was created to register it.
    
    Parameters:
    
    pr - The PluginRepository to be registered.
  - createURLStreamHandler
```
public URLStreamHandler createURLStreamHandler(String protocol)
```
    Specified by:
    
    createURLStreamHandler in interface URLStreamHandlerFactory