ca.uhn.hl7v2.protocol.impl
Class URLTransport

java.lang.Object
  ca.uhn.hl7v2.protocol.impl.AbstractTransport
      ca.uhn.hl7v2.protocol.impl.URLTransport

All Implemented Interfaces:

TransportLayer

public class URLTransport
extends AbstractTransport
implements TransportLayer

A TransportLayer that reads and writes from an URL (for example over HTTP).

Version:

$Revision: 1.1 $ updated on $Date: 2007-02-19 02:24:26 $ by $Author: jamesagnew $

Author:

Bryan Tripp, Alexei Guevara

Field Summary

protected int	myBufferSize
static String	URL_KEY Key in Transportable metadata map under which URL is stored.

Constructor Summary

URLTransport(URL theURL, boolean connectOnSend, boolean connectOnReceive, boolean connectOnConnect)
The boolean configuration flags determine when new connections are made.

Method Summary

void	doConnect() Calls openConnection() on the underlying URL and configures the connection, if this transport is configured to connect when connect() is called (see constructor params).
void	doDisconnect() Performs disconnection as described in TransportLayer.disconnect().
Transportable	doReceive() Called by receive(), which then adds common metadata.
void	doSend(Transportable theMessage) Writes the given message to the URL.
String	getContentType()
void	setContentType(String theContentType)

Methods inherited from class ca.uhn.hl7v2.protocol.impl.AbstractTransport

connect, disconnect, getCommonMetadata, isConnected, receive, send

Methods inherited from class java.lang.Object

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

Methods inherited from interface ca.uhn.hl7v2.protocol.TransportLayer

connect, disconnect, getCommonMetadata, isConnected, receive, send

Field Detail

URL_KEY

public static final String URL_KEY

Key in Transportable metadata map under which URL is stored.

See Also:

Constant Field Values

myBufferSize

protected int myBufferSize

Constructor Detail

URLTransport

public URLTransport(URL theURL,
                    boolean connectOnSend,
                    boolean connectOnReceive,
                    boolean connectOnConnect)

The boolean configuration flags determine when new connections are made. For example if this transport is being used for query/response, you might set connectOnSend to true and the others to false, so that each query/response is done over a fresh connection. If you are using a transport just to read data from a URL, you might set connectOnReceive to true and the others to false.

Parameters:

theURL - the URL at which messages are to be read and written

connectOnSend - makes a new connection before each send

connectOnReceive - makes a new connection before each receive

connectOnConnect - makes a new connection when connect() is called

Method Detail

doSend

public void doSend(Transportable theMessage)
            throws TransportException

Writes the given message to the URL.

Specified by:

doSend in class AbstractTransport

Parameters:

theMessage - the message to send

Throws:

TransportException

See Also:

ca.uhn.hl7v2.protocol.AbstractTransport#doSend(ca.uhn.hl7v2.protocol.Transportable)

doReceive

public Transportable doReceive()
                        throws TransportException

Description copied from class: AbstractTransport

Called by receive(), which then adds common metadata.

Specified by:

doReceive in class AbstractTransport

Returns:

Transportable the next available message

Throws:

TransportException

See Also:

ca.uhn.hl7v2.protocol.AbstractTransport#doReceive()

doConnect

public void doConnect()
               throws TransportException

Calls openConnection() on the underlying URL and configures the connection, if this transport is configured to connect when connect() is called (see constructor params).

Specified by:

doConnect in class AbstractTransport

Throws:

TransportException

See Also:

ca.uhn.hl7v2.protocol.AbstractTransport#doConnect()

getContentType

public String getContentType()

Returns:

the string used in the request property "Content-Type" (defaults to "application/hl7+doc+xml")

setContentType

public void setContentType(String theContentType)

Parameters:

theContentType - the string to be used in the request property "Content-Type" (defaults to "application/hl7+doc+xml")

doDisconnect

public void doDisconnect()
                  throws TransportException

Description copied from class: AbstractTransport

Performs disconnection as described in TransportLayer.disconnect(). The disconnect() method of this class delegates to doDisconnect() after some internal housekeeping.

Specified by:

doDisconnect in class AbstractTransport

Throws:

TransportException

See Also:

TransportLayer.disconnect()