FingerClient (Apache Commons Net 3.4 API)

java.lang.Object
- org.apache.commons.net.SocketClient
- - org.apache.commons.net.finger.FingerClient

Direct Known Subclasses:

WhoisClient
```
public class FingerClient
extends SocketClient
```
The FingerClient class implements the client side of the Internet Finger Protocol defined in RFC 1288. To finger a host you create a FingerClient instance, connect to the host, query the host, and finally disconnect from the host. If the finger service you want to query is on a non-standard port, connect to the host at that port. Here's a sample use:
```
    FingerClient finger;

    finger = new FingerClient();

    try {
      finger.connect("foo.bar.com");
      System.out.println(finger.query("foobar", false));
      finger.disconnect();
    } catch(IOException e) {
      System.err.println("Error I/O exception: " + e.getMessage());
      return;
    }
 
```

Field Summary

Fields
Modifier and Type Field and Description

static int DEFAULT_PORT
The default FINGER port.
- Fields inherited from class org.apache.commons.net.SocketClient
  _defaultPort_, _hostname_, _input_, _output_, _serverSocketFactory_, _socket_, _socketFactory_, _timeout_, connectTimeout, NETASCII_EOL

Fields
Modifier and Type	Field and Description
`static int`	`DEFAULT_PORT` The default FINGER port.

Constructor Summary

Constructors
Constructor and Description

FingerClient()
The default FingerClient constructor.

Constructors
Constructor and Description
`FingerClient()` The default FingerClient constructor.

Method Summary

Methods
Modifier and Type	Method and Description
`InputStream`	`getInputStream(boolean longOutput)` Fingers the connected host and returns the input stream from the network connection of the finger query.
`InputStream`	`getInputStream(boolean longOutput, String username)` Fingers a user and returns the input stream from the network connection of the finger query.
`InputStream`	`getInputStream(boolean longOutput, String username, String encoding)` Fingers a user and returns the input stream from the network connection of the finger query.
`String`	`query(boolean longOutput)` Fingers the connected host and returns the output as a String.
`String`	`query(boolean longOutput, String username)` Fingers a user at the connected host and returns the output as a String.

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

- Field Detail
  - DEFAULT_PORT
```
public static final int DEFAULT_PORT
```
    The default FINGER port. Set to 79 according to RFC 1288.
    
    See Also:
    Constant Field Values
- Constructor Detail
  - FingerClient
```
public FingerClient()
```
    The default FingerClient constructor. Initializes the default port to DEFAULT_PORT .
- Method Detail
  - query
```
public String query(boolean longOutput,
           String username)
             throws IOException
```
    Fingers a user at the connected host and returns the output as a String. You must first connect to a finger server before calling this method, and you should disconnect afterward.
    
    Parameters:
    longOutput - Set to true if long output is requested, false if not.
    username - The name of the user to finger.
    
    Returns:
    The result of the finger query.
    
    Throws:
    
    IOException - If an I/O error occurs while reading the socket.
  - query
```
public String query(boolean longOutput)
             throws IOException
```
    Fingers the connected host and returns the output as a String. You must first connect to a finger server before calling this method, and you should disconnect afterward. This is equivalent to calling query(longOutput, "") .
    
    Parameters:
    longOutput - Set to true if long output is requested, false if not.
    
    Returns:
    The result of the finger query.
    
    Throws:
    
    IOException - If an I/O error occurs while reading the socket.
  - getInputStream
```
public InputStream getInputStream(boolean longOutput,
                         String username)
                           throws IOException
```
    Fingers a user and returns the input stream from the network connection of the finger query. You must first connect to a finger server before calling this method, and you should disconnect after finishing reading the stream.
    
    Parameters:
    longOutput - Set to true if long output is requested, false if not.
    username - The name of the user to finger.
    
    Returns:
    The InputStream of the network connection of the finger query. Can be read to obtain finger results.
    
    Throws:
    
    IOException - If an I/O error during the operation.
  - getInputStream
```
public InputStream getInputStream(boolean longOutput,
                         String username,
                         String encoding)
                           throws IOException
```
    Fingers a user and returns the input stream from the network connection of the finger query. You must first connect to a finger server before calling this method, and you should disconnect after finishing reading the stream.
    
    Parameters:
    longOutput - Set to true if long output is requested, false if not.
    username - The name of the user to finger.
    encoding - the character encoding that should be used for the query, null for the platform's default encoding
    
    Returns:
    The InputStream of the network connection of the finger query. Can be read to obtain finger results.
    
    Throws:
    
    IOException - If an I/O error during the operation.
  - getInputStream
```
public InputStream getInputStream(boolean longOutput)
                           throws IOException
```
    Fingers the connected host and returns the input stream from the network connection of the finger query. This is equivalent to calling getInputStream(longOutput, ""). You must first connect to a finger server before calling this method, and you should disconnect after finishing reading the stream.
    
    Parameters:
    longOutput - Set to true if long output is requested, false if not.
    
    Returns:
    The InputStream of the network connection of the finger query. Can be read to obtain finger results.
    
    Throws:
    
    IOException - If an I/O error during the operation.

Class FingerClient

Field Summary

Fields inherited from class org.apache.commons.net.SocketClient

Constructor Summary

Method Summary

Methods inherited from class org.apache.commons.net.SocketClient

Methods inherited from class java.lang.Object

Field Detail

DEFAULT_PORT

Constructor Detail

FingerClient

Method Detail

query

query

getInputStream

getInputStream

getInputStream