bootstrapP
Class Command

java.lang.Object
  bootstrapP.Command

public class Command
extends java.lang.Object

This class represents a command got from the human interface.

Author:

Marco Cornolti

Field Summary

private int	int1 May be the unique MS id (for those commands involving only one MS like RemoveMS or UsersList) or the first MS id (for MoveUser)
private int	int2 The second MS id
private java.lang.String	str1 May be both an hostname or a nickname, depending on the command type
private java.lang.String	str2 The password
private int	type The Command type

Constructor Summary

private

Command(int type, java.lang.String s1, java.lang.String s2, int i1, int i2) Private Command constructor.

Method Summary

java.lang.String	getFilename() Get the filename (for those method whose arguments has one).
java.lang.String	getHostname() Get the hostname (for those method whose arguments has one).
int	getId1() Get the first server ID number (for those method whose arguments has one).
int	getId2() Get the second server ID number (for those method whose arguments has one).
java.lang.String	getNick() Get the nickname (for those method whose arguments has one).
java.lang.String	getPassword() Get the password (for those method whose arguments has one).
int	getRMIPort() Get the RMI port (for those method whose arguments has one).
int	getUDPPort() Get the UDP port (for those method whose arguments has one).
boolean	isAddMS() The command is of type "add message server".
boolean	isBackup() The command is of type "backup".
boolean	isBlockAssignation() The command is of type "block assignation".
boolean	isDeleteUser() The command is of type "delete user".
boolean	isMoveUser() The command is of type "move a user to anothe message server".
boolean	isRemoveMS() The command is of type "remove message server".
boolean	isShowAll() The command is of type "show all".
boolean	isShowGlobalStats() The command is of type "show global statistics".
boolean	isShutdown() The command is of type "shutdown".
boolean	isTestPresence() The command is of type "test presence".
boolean	isUnblockAssignation() The command is of type "unblock assignation".
boolean	isUsersList() The command is of type "list users".
static Command	makeAddMS(java.lang.String hostname, java.lang.String password, int rmiPort, int udpPort) "add message server" command constructor.
static Command	makeBackup(java.lang.String filename) "backup" command constructor.
static Command	makeBlockAssignation(int id) "block assignation" command constructor.
static Command	makeDeleteUser(java.lang.String nick) "delete user" command constructor.
static Command	makeMoveUser(java.lang.String nick, int id) "move user" command constructor.
static Command	makeRemoveMS(int id) "remove message server" command constructor.
static Command	makeShowAll() "show all" command constructor.
static Command	makeShowGlobalStats() "show global statitics" command constructor.
static Command	makeShutdown(int id) "shutdown" command constructor.
static Command	makeTestPresence(int id) "test presence" command constructor.
static Command	makeUnblockAssignation(int id) "unblock assignation" command constructor.
static Command	makeUsersList(int id) "show users list" command constructor.

Methods inherited from class java.lang.Object

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

Field Detail

type

private int type

The Command type

str1

private java.lang.String str1

May be both an hostname or a nickname, depending on the command type

str2

private java.lang.String str2

The password

int1

private int int1

May be the unique MS id (for those commands involving only one MS like RemoveMS or UsersList) or the first MS id (for MoveUser)

int2

private int int2

The second MS id

Constructor Detail

Command

private Command(int type,
                java.lang.String s1,
                java.lang.String s2,
                int i1,
                int i2)

Private Command constructor.

Parameters:

type - the command type.

s1 - the hostname for commands of type AddMS, the nickname for commands of type DeleteUser or the file name (may be null) for the command Backup.

s2 - the User password

i1 - the MS id for commands of type RemoveMS or the first MS id for commands of type MoveUser

i2 - the second MS id

Method Detail

getHostname

public java.lang.String getHostname()

Get the hostname (for those method whose arguments has one).

Returns:

the hostname

getNick

public java.lang.String getNick()

Get the nickname (for those method whose arguments has one).

Returns:

the nickname

getFilename

public java.lang.String getFilename()

Get the filename (for those method whose arguments has one).

Returns:

the filename

getId1

public int getId1()

Get the first server ID number (for those method whose arguments has one).

Returns:

the first server ID

getId2

public int getId2()

Get the second server ID number (for those method whose arguments has one).

Returns:

the second server ID

getPassword

public java.lang.String getPassword()

Get the password (for those method whose arguments has one).

Returns:

the password.

getUDPPort

public int getUDPPort()

Get the UDP port (for those method whose arguments has one).

Returns:

UDP port number.

getRMIPort

public int getRMIPort()

Get the RMI port (for those method whose arguments has one).

Returns:

RMI port number.

isShowAll

public boolean isShowAll()

The command is of type "show all".

Returns:

true if the command type is "show all".

isAddMS

public boolean isAddMS()

The command is of type "add message server".

Returns:

true if the command type is "add message server".

isDeleteUser

public boolean isDeleteUser()

The command is of type "delete user".

Returns:

true if the command type is "delete user".

isShowGlobalStats

public boolean isShowGlobalStats()

The command is of type "show global statistics".

Returns:

true if the command type is "show global statistics".

isRemoveMS

public boolean isRemoveMS()

The command is of type "remove message server".

Returns:

true if the command type is "remove message server".

isMoveUser

public boolean isMoveUser()

The command is of type "move a user to anothe message server".

Returns:

true if the command type is "move a user to another message server".

isTestPresence

public boolean isTestPresence()

The command is of type "test presence".

Returns:

true if the command type is "test presence".

isBlockAssignation

public boolean isBlockAssignation()

The command is of type "block assignation".

Returns:

true if the command type is "block assignation".

isShutdown

public boolean isShutdown()

The command is of type "shutdown".

Returns:

true if the command type is "shutdown".

isUsersList

public boolean isUsersList()

The command is of type "list users".

Returns:

true if the command type is "list users".

isUnblockAssignation

public boolean isUnblockAssignation()

The command is of type "unblock assignation".

Returns:

true if the command type is "unblock assignation".

isBackup

public boolean isBackup()

The command is of type "backup".

Returns:

true if the command type is "backup".

makeShowAll

public static Command makeShowAll()

"show all" command constructor.

Returns:

a command of type "show all"

makeAddMS

public static Command makeAddMS(java.lang.String hostname,
                                java.lang.String password,
                                int rmiPort,
                                int udpPort)

"add message server" command constructor.

Parameters:

hostname - the hostname of the message server.

password - the ms password.

rmiPort - the ms RMI port.

udpPort - the ms UDP port.

Returns:

a command of type "add message server"

makeDeleteUser

public static Command makeDeleteUser(java.lang.String nick)

"delete user" command constructor.

Parameters:

nick - the user nickname.

Returns:

a command of type "delete user"

makeShowGlobalStats

public static Command makeShowGlobalStats()

"show global statitics" command constructor.

Returns:

a command of type "show global statistics"

makeRemoveMS

public static Command makeRemoveMS(int id)

"remove message server" command constructor.

Parameters:

id - the ms ID number.

Returns:

a command of type "remove message server"

makeMoveUser

public static Command makeMoveUser(java.lang.String nick,
                                   int id)

"move user" command constructor.

Parameters:

nick - the nickname

id - the id of the server the user must be moved to.

Returns:

a command of type "move user"

makeTestPresence

public static Command makeTestPresence(int id)

"test presence" command constructor.

Parameters:

id - the is of the message server whose presence must be tested.

Returns:

a command of type "test presence"

makeBlockAssignation

public static Command makeBlockAssignation(int id)

"block assignation" command constructor.

Parameters:

id - the ms that must be blocked.

Returns:

a command of type "block assignation"

makeShutdown

public static Command makeShutdown(int id)

"shutdown" command constructor.

Parameters:

id - the is of the ms that must me shut down.

Returns:

a command of type "shutdown"

makeUsersList

public static Command makeUsersList(int id)

"show users list" command constructor.

Parameters:

id - the id of the ms the users must be shown.

Returns:

a command of type "show users list"

makeUnblockAssignation

public static Command makeUnblockAssignation(int id)

"unblock assignation" command constructor.

Parameters:

id - the id of the server whose assignation must be unblocked.

Returns:

a command of type "unblock assignation"

makeBackup

public static Command makeBackup(java.lang.String filename)

"backup" command constructor.

Parameters:

filename - the file name of the backup.

Returns:

a command of type "backup"