org.apache.commons.vfs2.provider

Class HostFileNameParser

java.lang.Object

org.apache.commons.vfs2.provider.AbstractFileNameParser

org.apache.commons.vfs2.provider.HostFileNameParser

All Implemented Interfaces:

FileNameParser

Direct Known Subclasses:

FtpFileNameParser, GenericURLFileNameParser, URLFileNameParser

public class HostFileNameParser
extends AbstractFileNameParser

Implementation for any url based file system.

Parses the url into user/password/host/port/path. Does not handle a query string (after ?)

See Also:

URLFileNameParser for the implementation which also handles the query string too

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	HostFileNameParser.Authority Parsed authority info (scheme, hostname, username/password, port).

Field Summary

Fields

Modifier and Type	Field and Description
private int	defaultPort

Constructor Summary

Constructors

Constructor and Description
HostFileNameParser(int defaultPort)

Method Summary

Modifier and Type	Method and Description
protected java.lang.String	extractHostName(java.lang.StringBuilder name) Extracts the hostname from a URI.
protected int	extractPort(java.lang.StringBuilder name, java.lang.String uri) Extracts the port from a URI.
protected HostFileNameParser.Authority	extractToPath(java.lang.String uri, java.lang.StringBuilder name) Extracts the scheme, userinfo, hostname and port components of a generic URI.
protected java.lang.String	extractUserInfo(java.lang.StringBuilder name) Extracts the user info from a URI.
int	getDefaultPort()
FileName	parseUri(VfsComponentContext context, FileName base, java.lang.String fileName) Parses a String into a file name.

Methods inherited from class org.apache.commons.vfs2.provider.AbstractFileNameParser

encodeCharacter

Methods inherited from class java.lang.Object

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

Field Detail

defaultPort

private final int defaultPort

Constructor Detail

HostFileNameParser

public HostFileNameParser(int defaultPort)

Method Detail

getDefaultPort

public int getDefaultPort()

parseUri

public FileName parseUri(VfsComponentContext context,
                         FileName base,
                         java.lang.String fileName)
                  throws FileSystemException

Description copied from interface: FileNameParser

Parses a String into a file name.

Parameters:

context - The component context.

base - The base FileName.

fileName - The target file name.

Returns:

A FileName that represents the taret file.

Throws:

FileSystemException - if an error occurs parsing the URI.

extractToPath

protected HostFileNameParser.Authority extractToPath(java.lang.String uri,
                                                     java.lang.StringBuilder name)
                                              throws FileSystemException

Extracts the scheme, userinfo, hostname and port components of a generic URI.

Parameters:

uri - The absolute URI to parse.

name - Used to return the remainder of the URI.

Returns:

Authority extracted host authority, never null.

Throws:

FileSystemException - if authority cannot be extracted.

extractUserInfo

protected java.lang.String extractUserInfo(java.lang.StringBuilder name)

Extracts the user info from a URI.

Parameters:

name - string buffer with the "scheme://" part has been removed already. Will be modified.

Returns:

the user information up to the '@' or null.

extractHostName

protected java.lang.String extractHostName(java.lang.StringBuilder name)

Extracts the hostname from a URI.

Parameters:

name - string buffer with the "scheme://[userinfo@]" part has been removed already. Will be modified.

Returns:

the host name or null.

extractPort

protected int extractPort(java.lang.StringBuilder name,
                          java.lang.String uri)
                   throws FileSystemException

Extracts the port from a URI.

Parameters:

name - string buffer with the "scheme://[userinfo@]hostname" part has been removed already. Will be modified.

uri - full URI for error reporting.

Returns:

The port, or -1 if the URI does not contain a port.

Throws:

FileSystemException - if URI is malformed.

java.lang.NumberFormatException - if port number cannot be parsed.