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import java.io.InputStream; |
import java.io.InputStream; |
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import java.io.IOException; |
import java.io.IOException; |
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import java.io.OutputStream; |
import java.io.OutputStream; |
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import java.net.UnknownServiceConnection; |
import java.net.UnknownServiceException; |
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import java.net.URL; |
import java.net.URL; |
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import java.net.URLConnection; |
import java.net.URLConnection; |
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public class GopherURLConnection extends URLConnection |
public class GopherURLConnection extends URLConnection |
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{ |
{ |
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/** |
/** |
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* The connection managing the protocol exchange. |
* The connection managing the protocol exchange. |
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*/ |
*/ |
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protected GopherConnection connection; |
protected GopherConnection connection; |
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|
|
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/** |
/** |
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* Constructs a Gopher connection to the specified URL. |
* Constructs a Gopher connection to the specified URL. |
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* @param url the URL |
* @param url the URL |
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*/ |
*/ |
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public GopherURLConnection(URL url) |
public GopherURLConnection(URL url) |
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{ |
{ |
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super(url); |
super(url); |
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} |
} |
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/** |
/** |
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* Establishes the connection. |
* Establishes the connection. |
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*/ |
*/ |
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public void connect() |
public void connect() throws IOException |
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throws IOException |
{ |
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{ |
if (connected) |
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if (connected) |
return; |
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return; |
String host = url.getHost(); |
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String host = url.getHost(); |
int port = url.getPort(); |
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int port = url.getPort(); |
connection = new GopherConnection(host, port); |
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connection = new GopherConnection(host, port); |
} |
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} |
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/** |
/** |
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* Returns an input stream that reads from this open connection. |
* Returns an input stream that reads from this open connection. |
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*/ |
*/ |
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public InputStream getInputStream() |
public InputStream getInputStream() throws IOException |
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throws IOException |
{ |
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{ |
String dir = url.getPath(); |
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String dir = url.getPath(); |
String filename = url.getFile(); |
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String filename = url.getFile(); |
if (dir == null && filename == null) |
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if (dir==null && filename==null) |
{ |
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{ |
throw new UnsupportedOperationException("not implemented"); |
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throw new UnsupportedOperationException("not implemented"); |
} |
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} |
else |
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else |
{ |
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{ |
String selector = (dir == null) ? filename : |
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String selector = (dir==null) ? filename : |
new StringBuffer(dir).append('/').append(filename).toString(); |
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new StringBuffer(dir) |
return connection.get(selector); |
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.append('/') |
} |
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.append(filename) |
} |
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.toString(); |
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return connection.retrieve(selector); |
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} |
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} |
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/** |
/** |
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* Returns an output stream that writes to this connection. |
* Returns an output stream that writes to this connection. |
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*/ |
*/ |
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public OutputStream getOutputStream() |
public OutputStream getOutputStream() throws IOException |
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throws IOException |
{ |
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{ |
throw new UnknownServiceException(); |
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throw new UnknownServiceException(); |
} |
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} |
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public Object getContent() throws IOException |
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public Object getContent() |
{ |
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throws IOException |
return new GopherContentHandler().getContent(this); |
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{ |
} |
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return new GopherContentHandler().getContent(this); |
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} |
public Object getContent(Class[]classes) throws IOException |
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{ |
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public Object getContent(Class[] classes) |
return new GopherContentHandler().getContent(this, classes); |
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throws IOException |
} |
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{ |
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return new GopherContentHandler().getContent(this, classes); |
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} |
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} |
} |