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Class BaseLayer.BAddressTable
Abstract.AddressTable
|
+----BaseLayer.BAddressTable
- public class BAddressTable
- extends AddressTable
Implementation of AddressTable in Abstract Layer.
AddressTable class for store and retain Address.
The static addresses can be stored to the AddressTable from file reading and
dynamic addresses can be stored by addAddress method.
You can extend this class to use 'description' field of Address more structured
way.
-
BAddressTable()
- Default constructor
-
BAddressTable(BufferedReader)
- Construct AddressTable from file reading.
-
addAddress(Address)
- If the address table for the id is already exist, The address will be
replaced with new one.
-
getAddress(String)
- Get an Address object using agent name
-
getAddressTableWithType(String)
- Get an AddressTable of the same Type address
-
removeAddress(String)
- Remove address from the table.
BAddressTable
public BAddressTable()
- Default constructor
BAddressTable
public BAddressTable(BufferedReader in) throws IOException, ConnectionException
- Construct AddressTable from file reading.
If you are going to use different file format other than provided here,
subclass AddressTable and override this constructor.
The Address file format is a collection of Addresses and each Address
should be finished with '\n' and items are separated by ','. Therefore
you should not add '\n' and ',' unintentionally.
Each line's format is :
[Agent Name],[Internet Host Address],[Port No],[Message method for Connection],[String Description]\n
Example of AddressTable file format :
AgentNameA,java.stanford.edu,1234,ServerThread,(AServer Connection)\n
AgentNameB,aaa.bb.com,3456,ReceiverThread,(Sort Service)\n
AgentNameC,ccc.aol.com,21,FTPClient,MyFTPClientService\n
..
- Parameters:
- in - BufferedReader for reading Addresses
- Throws: IOException,
- ConnectionException
addAddress
public void addAddress(Address addr)
- If the address table for the id is already exist, The address will be
replaced with new one.
- Parameters:
- id - : Agent Name
- addr - : Address object for the agent
- Overrides:
- addAddress in class AddressTable
removeAddress
public void removeAddress(String id)
- Remove address from the table. If the geven agent name is not in the
address table, nothing will happen
- Parameters:
- id - Agent name want to be removed from the AddressTable
getAddress
public Address getAddress(String id)
- Get an Address object using agent name
- Parameters:
- id - Agent name
- Returns:
- Address object, the agent has. Null if the address is not defined
getAddressTableWithType
public AddressTable getAddressTableWithType(String type)
- Get an AddressTable of the same Type address
- Parameters:
- type - Type definition(e.g. Message method) to retrieve
- Returns:
- AddressTable
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