com.eurotech.framework.protocol.can
Class CanConnectionServiceImpl

java.lang.Object
  com.eurotech.framework.protocol.can.CanConnectionServiceImpl

All Implemented Interfaces:

ConfigurableComponent, CanConnectionService

public class CanConnectionServiceImpl
extends Object
implements CanConnectionService, ConfigurableComponent

Constructor Summary

CanConnectionServiceImpl()

Method Summary

protected void	activate(org.osgi.service.component.ComponentContext componentContext)
protected void	deactivate(org.osgi.service.component.ComponentContext componentContext)
CanMessage	receiveCanMessage(int can_id, int can_mask) Reads frames that are waiting on socket CAN (all interfaces) and returns an array if canId is correct.
void	sendCanMessage(String ifName, int canId, byte[] message) Sends an array of bytes on a CAN socket

Methods inherited from class java.lang.Object

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

Constructor Detail

CanConnectionServiceImpl

public CanConnectionServiceImpl()

Method Detail

activate

protected void activate(org.osgi.service.component.ComponentContext componentContext)

deactivate

protected void deactivate(org.osgi.service.component.ComponentContext componentContext)

sendCanMessage

public void sendCanMessage(String ifName,
                           int canId,
                           byte[] message)
                    throws EsfException,
                           IOException

Description copied from interface: CanConnectionService

Sends an array of bytes on a CAN socket

Specified by:

sendCanMessage in interface CanConnectionService

Parameters:

ifName - the name of the socket (eg "can0")

canId - can identifier, must be unique

message - the array of bytes to send to the socket

Throws:

EsfException

IOException

receiveCanMessage

public CanMessage receiveCanMessage(int can_id,
                                    int can_mask)
                             throws EsfException,
                                    IOException

Description copied from interface: CanConnectionService

Reads frames that are waiting on socket CAN (all interfaces) and returns an array if canId is correct.

A filter can be defined to receive only frames for the id we are interested in. If the can_id param is set to -1, no filter is applied.

Specified by:

receiveCanMessage in interface CanConnectionService

Parameters:

can_id - id to be filtered

can_mask - mask to be applied to the id

Returns:

CanMessage = canId and an array of bytes buffered on the socket if any

Throws:

EsfException

IOException