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WhoisClient.javaAPI DocApache Commons NET 1.4.1 API3455Sat Dec 03 10:05:48 GMT 2005org.apache.commons.net

WhoisClient

public final class WhoisClient extends FingerClient
The WhoisClient class implements the client side of the Internet Whois Protocol defined in RFC 954. To query a host you create a WhoisClient instance, connect to the host, query the host, and finally disconnect from the host. If the whois service you want to query is on a non-standard port, connect to the host at that port. Here's a sample use: 
WhoisClient whois;

whois = new WhoisClient();

try {
whois.connect(WhoisClient.DEFAULT_HOST);
System.out.println(whois.query("foobar"));
whois.disconnect();
} catch(IOException e) {
System.err.println("Error I/O exception: " + e.getMessage());
return;
}

author
Daniel F. Savarese

Fields Summary
public static final String
DEFAULT_HOST
The default whois host to query. It is set to whois.internic.net.
public static final int
DEFAULT_PORT
The default whois port. It is set to 43 according to RFC 954.
Constructors Summary
public WhoisClient()
The default whois constructor. Initializes the default port to DEFAULT_PORT .



                        
     
    
        setDefaultPort(DEFAULT_PORT);
Methods Summary
public java.io.InputStreamgetInputStream(java.lang.String handle)
Queries the connected whois server for information regarding the given handle and returns the InputStream of the network connection. It is up to the programmer to be familiar with the handle syntax of the whois server. You must first connect to a finger server before calling this method, and you should disconnect after finishing reading the stream.

param
handle The handle to lookup.
return
The InputStream of the network connection of the whois query. Can be read to obtain whois results.
exception
IOException If an I/O error occurs during the operation.

        return getInputStream(false, handle);
public java.lang.Stringquery(java.lang.String handle)
Queries the connected whois server for information regarding the given handle. It is up to the programmer to be familiar with the handle syntax of the whois server. You must first connect to a whois server before calling this method, and you should disconnect afterward.

param
handle The handle to lookup.
return
The result of the whois query.
exception
IOException If an I/O error occurs during the operation.

        return query(false, handle);