Package org.opennms.netmgt.icmp.jni

Class JniPinger

java.lang.Object

org.opennms.netmgt.icmp.jni.JniPinger

All Implemented Interfaces:

Pinger

public class JniPinger
extends Object
implements Pinger

JniPinger class.

Author:

Ben Reed, Mathew Brozowski

Constructor Summary

Constructors

Constructor	Description
JniPinger()

Method Summary

Modifier and Type	Method	Description
void	initialize4()	Initialize IPv4 in this Pinger implementation.
void	initialize6()	Initialize IPv6 in this Pinger implementation.
boolean	isV4Available()	Whether or not IPv4 is initialized and available for this implementation.
boolean	isV6Available()	Whether or not IPv6 is initialized and available for this implementation.
List<Number>	parallelPing(InetAddress host, int count, long timeout, long pingInterval)	Ping a remote host, sending 1 or more packets at the given interval, and then return the response times as a list.
List<Number>	parallelPing(InetAddress host, int count, long timeout, long pingInterval, int size)	Ping a remote host, sending 1 or more packets at the given interval, and then return the response times as a list.
Number	ping(InetAddress host)	Ping a remote host, using the default number of retries and timeouts.
Number	ping(InetAddress host, long timeout, int retries)	This method is used to ping a remote host to test for ICMP support.
Number	ping(InetAddress host, long timeout, int retries, int packetsize)	This method is used to ping a remote host to test for ICMP support.
void	ping(InetAddress host, long timeout, int retries, int packetsize, int sequenceId, PingResponseCallback cb)	ping
void	ping(InetAddress host, long timeout, int retries, int sequenceId, PingResponseCallback cb)	ping
void	setAllowFragmentation(boolean allow)
void	setTrafficClass(int tc)

Methods inherited from class java.lang.Object

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

Constructor Detail

JniPinger

public JniPinger()

Method Detail

initialize4

public void initialize4()
                 throws Exception

Description copied from interface: Pinger

Initialize IPv4 in this Pinger implementation. If unable to do so, implementations should throw an exception.

Specified by:

initialize4 in interface Pinger

Throws:

Exception

initialize6

public void initialize6()
                 throws Exception

Description copied from interface: Pinger

Initialize IPv6 in this Pinger implementation. If unable to do so, implementations should throw an exception.

Specified by:

initialize6 in interface Pinger

Throws:

Exception

isV4Available

public boolean isV4Available()

Description copied from interface: Pinger

Whether or not IPv4 is initialized and available for this implementation.

Specified by:

isV4Available in interface Pinger

isV6Available

public boolean isV6Available()

Description copied from interface: Pinger

Whether or not IPv6 is initialized and available for this implementation.

Specified by:

isV6Available in interface Pinger

Returns:

ping

public void ping(InetAddress host,
                 long timeout,
                 int retries,
                 int packetsize,
                 int sequenceId,
                 PingResponseCallback cb)
          throws Exception

ping

Specified by:

ping in interface Pinger

Parameters:

host - a InetAddress object.

timeout - a long.

retries - a int.

packetsize - The size in byte of the ICMP packet.

sequenceId - a short.

cb - a org.opennms.netmgt.icmp.jni.PingResponseCallback object.

Throws:

Exception - if any.

ping

public void ping(InetAddress host,
                 long timeout,
                 int retries,
                 int sequenceId,
                 PingResponseCallback cb)
          throws Exception

ping

Specified by:

ping in interface Pinger

Parameters:

host - a InetAddress object.

timeout - a long.

retries - a int.

packetsize - The size in byte of the ICMP packet.

sequenceId - a short.

cb - a org.opennms.netmgt.icmp.jni.PingResponseCallback object.

Throws:

Exception - if any.

ping

public Number ping(InetAddress host,
                   long timeout,
                   int retries,
                   int packetsize)
            throws Exception

This method is used to ping a remote host to test for ICMP support. If the remote host responds within the specified period, defined by retries and timeouts, then the response time is returned.

Specified by:

ping in interface Pinger

Parameters:

host - The address to poll.

timeout - The time to wait between each retry.

retries - The number of times to retry

packetsize - The size in byte of the ICMP packet.

Returns:

The response time in microseconds if the host is reachable and has responded with an echo reply, otherwise a null value.

Throws:

InterruptedException - if any.

IOException - if any.

Exception - if any.

ping

public Number ping(InetAddress host,
                   long timeout,
                   int retries)
            throws Exception

This method is used to ping a remote host to test for ICMP support. If the remote host responds within the specified period, defined by retries and timeouts, then the response time is returned.

Specified by:

ping in interface Pinger

Parameters:

host - The address to poll.

timeout - The time to wait between each retry.

retries - The number of times to retry

Returns:

The response time in microseconds if the host is reachable and has responded with an echo reply, otherwise a null value.

Throws:

InterruptedException - if any.

IOException - if any.

Exception - if any.

ping

public Number ping(InetAddress host)
            throws Exception

Ping a remote host, using the default number of retries and timeouts.

Specified by:

ping in interface Pinger

Parameters:

host - the host to ping

Returns:

the round-trip time of the packet

Throws:

IOException - if any.

InterruptedException - if any.

Exception - if any.

parallelPing

public List<Number> parallelPing(InetAddress host,
                                 int count,
                                 long timeout,
                                 long pingInterval,
                                 int size)
                          throws Exception

Ping a remote host, sending 1 or more packets at the given interval, and then return the response times as a list.

Specified by:

parallelPing in interface Pinger

Parameters:

host - The InetAddress address to poll.

count - The number of packets to send.

timeout - The time to wait between each retry.

pingInterval - The interval at which packets will be sent.

size - The size of the packet to send.

Returns:

a List of response times in microseconds. If, for a given ping request, the host is reachable and has responded with an echo reply, it will contain a number, otherwise a null value.

Throws:

Exception

parallelPing

public List<Number> parallelPing(InetAddress host,
                                 int count,
                                 long timeout,
                                 long pingInterval)
                          throws Exception

Ping a remote host, sending 1 or more packets at the given interval, and then return the response times as a list.

Specified by:

parallelPing in interface Pinger

Parameters:

host - The InetAddress address to poll.

count - The number of packets to send.

timeout - The time to wait between each retry.

pingInterval - The interval at which packets will be sent.

Returns:

a List of response times in microseconds. If, for a given ping request, the host is reachable and has responded with an echo reply, it will contain a number, otherwise a null value.

Throws:

Exception

setTrafficClass

public void setTrafficClass(int tc)
                     throws Exception

Specified by:

setTrafficClass in interface Pinger

Throws:

Exception

setAllowFragmentation

public void setAllowFragmentation(boolean allow)
                           throws Exception

Specified by:

setAllowFragmentation in interface Pinger

Throws:

Exception