routing

Class FloatingContentRouter

java.lang.Object

routing.MessageRouter

routing.ActiveRouter

routing.FloatingContentRouter

public class FloatingContentRouter
extends ActiveRouter

Replication policy options fifo: do nothing special; replicate in the order in which they are found in the buffer rnd: shuffle randomly saf: smallest anchor zone (area) first svf[2]: smallest cylinder (area x volume) first; svf2 uses area, svf just radius stf[2]: smallest total (area x volume x ttl) first; stf2 uses area, stf just radius

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEL_ALG_COSINE
static int	DEL_ALG_EXP
static int	DEL_ALG_FIXED
static int	DEL_ALG_LINEAR
static int	DEL_ALG_NONE
static int	DEL_ENCOUNTER
static int	DEL_IMMEDIATE
protected java.util.Random	delRng
static java.lang.String	FC_A
static java.lang.String	FC_ANCHOR
static java.lang.String	FC_DEL_ALG
static java.lang.String	FC_DELETION
static java.lang.String	FC_LOCATION_ERROR_RANGE
static java.lang.String	FC_LOCATION_RATIO
static java.lang.String	FC_LOCATION_SOURCE
static java.lang.String	FC_LOCATION_UPDATE_INTERVAL
static java.lang.String	FC_NS
static java.lang.String	FC_R
static java.lang.String	FC_REPL_ALG
static java.lang.String	FC_REPLICATION
static java.lang.String	FC_SEED
static java.lang.String	FC_SRCLOC Message property keys
static java.lang.String	FC_TTL
static java.lang.String	FC_TTL_VAL
static java.lang.String	FC_TYPE
static int	LOC_SRC_GPS
static int	LOC_SRC_HOTSPOT
static int	LOC_SRC_NONE
protected java.util.Random	rdAngle
protected java.util.Random	rdDistance
static int	REPL_ALG_COSINE
static int	REPL_ALG_EXP
static int	REPL_ALG_FIXED
static int	REPL_ALG_LINEAR
static int	REPL_ALG_NONE
static int	REPL_FIFO
static int	REPL_RND
static int	REPL_SAF
static int	REPL_STF
static int	REPL_STF2
static int	REPL_SVF
static int	REPL_SVF2
protected java.util.Random	replRng
protected java.util.Random	rng

Fields inherited from class routing.ActiveRouter

DELETE_DELIVERED_S, deleteDelivered, RESPONSE_PREFIX, sendingConnections

Fields inherited from class routing.MessageRouter

B_SIZE_S, DENIED_LOW_RESOURCES, DENIED_NO_SPACE, DENIED_OLD, DENIED_POLICY, DENIED_TTL, DENIED_UNSPECIFIED, MSG_TTL_S, msgTtl, Q_MODE_FIFO, Q_MODE_RANDOM, RCV_OK, SEND_QUEUE_MODE_S, TRY_LATER_BUSY

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	FloatingContentRouter(FloatingContentRouter r) Copyconstructor.
	FloatingContentRouter(Settings s) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
void	changedConnection(Connection conn) Called when a connection's state changes.
boolean	createNewMessage(Message msg) Creates a new message to the router.
protected int	deletion_check(double h, double r, double a)
Coord	getLastKnownLocation()
Coord	getLocation()
int	getLocationSource()
Coord	getLocationWithError(double min, double max, double interval, int seed)
Message	messageTransferred(java.lang.String id, DTNHost from) This method should be called (on the receiving host) after a message was successfully transferred.
FloatingContentRouter	replicate() Creates a replicate of this router.
protected void	transferDone(Connection conn) Method is called just before a transfer is finalized at ActiveRouter.update().
void	update() Checks out all sending connections to finalize the ready ones and abort those whose connection went down.

Methods inherited from class routing.ActiveRouter

addToSendingConnections, canStartTransfer, checkReceiving, dropExpiredMessages, exchangeDeliverableMessages, getConnections, getMessagesForConnected, getNextMessageToRemove, getRoutingInfo, hasEnergy, init, isSending, isTransferring, makeRoomForMessage, makeRoomForNewMessage, receiveMessage, requestDeliverableMessages, shuffleMessages, startTransfer, transferAborted, tryAllMessages, tryAllMessagesToAllConnections, tryMessagesForConnected, tryMessagesToConnections

Methods inherited from class routing.MessageRouter

addApplication, addToMessages, compareByQueueMode, deleteMessage, getApplications, getBufferSize, getFreeBufferSize, getHost, getMessage, getMessageCollection, getNrofMessages, hasMessage, isBlacklistedMessage, isDeliveredMessage, isIncomingMessage, messageAborted, putToIncomingBuffer, removeFromIncomingBuffer, removeFromMessages, sendMessage, sortByQueueMode, toString

Methods inherited from class java.lang.Object

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

Field Detail

REPL_FIFO

public static final int REPL_FIFO

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Constant Field Values

REPL_RND

public static final int REPL_RND

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Constant Field Values

REPL_SAF

public static final int REPL_SAF

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Constant Field Values

REPL_SVF

public static final int REPL_SVF

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REPL_STF

public static final int REPL_STF

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REPL_SVF2

public static final int REPL_SVF2

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REPL_STF2

public static final int REPL_STF2

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Constant Field Values

REPL_ALG_NONE

public static final int REPL_ALG_NONE

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Constant Field Values

REPL_ALG_LINEAR

public static final int REPL_ALG_LINEAR

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Constant Field Values

REPL_ALG_EXP

public static final int REPL_ALG_EXP

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Constant Field Values

REPL_ALG_COSINE

public static final int REPL_ALG_COSINE

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Constant Field Values

REPL_ALG_FIXED

public static final int REPL_ALG_FIXED

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Constant Field Values

DEL_ALG_NONE

public static final int DEL_ALG_NONE

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DEL_ALG_LINEAR

public static final int DEL_ALG_LINEAR

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DEL_ALG_EXP

public static final int DEL_ALG_EXP

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Constant Field Values

DEL_ALG_COSINE

public static final int DEL_ALG_COSINE

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Constant Field Values

DEL_ALG_FIXED

public static final int DEL_ALG_FIXED

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Constant Field Values

LOC_SRC_NONE

public static final int LOC_SRC_NONE

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Constant Field Values

LOC_SRC_GPS

public static final int LOC_SRC_GPS

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Constant Field Values

LOC_SRC_HOTSPOT

public static final int LOC_SRC_HOTSPOT

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Constant Field Values

DEL_ENCOUNTER

public static final int DEL_ENCOUNTER

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Constant Field Values

DEL_IMMEDIATE

public static final int DEL_IMMEDIATE

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Constant Field Values

FC_SEED

public static final java.lang.String FC_SEED

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Constant Field Values

FC_NS

public static final java.lang.String FC_NS

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Constant Field Values

FC_DELETION

public static final java.lang.String FC_DELETION

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FC_REPLICATION

public static final java.lang.String FC_REPLICATION

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Constant Field Values

FC_REPL_ALG

public static final java.lang.String FC_REPL_ALG

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Constant Field Values

FC_DEL_ALG

public static final java.lang.String FC_DEL_ALG

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FC_LOCATION_ERROR_RANGE

public static final java.lang.String FC_LOCATION_ERROR_RANGE

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FC_LOCATION_UPDATE_INTERVAL

public static final java.lang.String FC_LOCATION_UPDATE_INTERVAL

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Constant Field Values

FC_LOCATION_SOURCE

public static final java.lang.String FC_LOCATION_SOURCE

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FC_LOCATION_RATIO

public static final java.lang.String FC_LOCATION_RATIO

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FC_SRCLOC

public static final java.lang.String FC_SRCLOC

Message property keys

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Constant Field Values

FC_ANCHOR

public static final java.lang.String FC_ANCHOR

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Constant Field Values

FC_A

public static final java.lang.String FC_A

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FC_R

public static final java.lang.String FC_R

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FC_TYPE

public static final java.lang.String FC_TYPE

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FC_TTL

public static final java.lang.String FC_TTL

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Constant Field Values

FC_TTL_VAL

public static final java.lang.String FC_TTL_VAL

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Constant Field Values

rng

protected java.util.Random rng

replRng

protected java.util.Random replRng

delRng

protected java.util.Random delRng

rdAngle

protected java.util.Random rdAngle

rdDistance

protected java.util.Random rdDistance

Constructor Detail

FloatingContentRouter

public FloatingContentRouter(Settings s)

Constructor. Creates a new message router based on the settings in the given Settings object.

Parameters:

s - The settings object

FloatingContentRouter

protected FloatingContentRouter(FloatingContentRouter r)

Copyconstructor.

Parameters:

r - The router prototype where setting values are copied from

Method Detail

createNewMessage

public boolean createNewMessage(Message msg)

Description copied from class: MessageRouter

Creates a new message to the router.

Overrides:

createNewMessage in class ActiveRouter

Parameters:

msg - The message to create

Returns:

True if the creation succeeded, false if not (e.g. the message was too big for the buffer)

changedConnection

public void changedConnection(Connection conn)

Description copied from class: ActiveRouter

Called when a connection's state changes. If energy modeling is enabled, and a new connection is created to this node, reduces the energy for the device discovery (scan response) amount

Overrides:

changedConnection in class ActiveRouter

Parameters:

conn - The connection that changed

update

public void update()

Description copied from class: ActiveRouter

Checks out all sending connections to finalize the ready ones and abort those whose connection went down. Also drops messages whose TTL <= 0 (checking every one simulated minute).

Overrides:

update in class ActiveRouter

See Also:

ActiveRouter.addToSendingConnections(Connection)

deletion_check

protected int deletion_check(double h,
                 double r,
                 double a)

transferDone

protected void transferDone(Connection conn)

Description copied from class: ActiveRouter

Method is called just before a transfer is finalized at ActiveRouter.update(). Subclasses that are interested of the event may want to override this.

Overrides:

transferDone in class ActiveRouter

Parameters:

conn - The connection whose transfer was finalized

replicate

public FloatingContentRouter replicate()

Description copied from class: MessageRouter

Creates a replicate of this router. The replicate has the same settings as this router but empty buffers and routing tables.

Specified by:

replicate in class MessageRouter

Returns:

The replicate

messageTransferred

public Message messageTransferred(java.lang.String id,
                         DTNHost from)

Description copied from class: MessageRouter

This method should be called (on the receiving host) after a message was successfully transferred. The transferred message is put to the message buffer unless this host is the final recipient of the message.

Overrides:

messageTransferred in class ActiveRouter

Parameters:

id - Id of the transferred message

from - Host the message was from (previous hop)

Returns:

The message that this host received

getLocationSource

public int getLocationSource()

getLastKnownLocation

public Coord getLastKnownLocation()

getLocation

public Coord getLocation()

getLocationWithError

public Coord getLocationWithError(double min,
                         double max,
                         double interval,
                         int seed)