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Class edu.sunysb.cs.ecsl.videoserver.VSProperties

java.lang.Object
   |
   +----edu.sunysb.cs.ecsl.videoserver.VSProperties

public class VSProperties

extends Object

implements TextProtocol

AcquisitionServerN_DefDescr

default description

AcquisitionServerN_IP

AcquisitionServersNumber

some parameters for acquisition server

allProps

applicationProps

DatabaseEngine

the actual jdbc driver is customizable.

DatabaseEngineClassName

driver

DatabaseName

Note: it holds only the default name, and each connection may change this name to its own

DatabaseUserName

defaultProps

ListenSocket

PushServN_AcqServer

the Id for corresponding acquisition server.

PushServN_BroadcastInPort

PushServN_BroadcastsM_IP

the key is composed from base + pserv num + "_" + chan num

PushServN_BroadcastsM_Port

PushServN_Control

Input control UDP port: a single computer may have several push server running on it.

PushServN_IP

PushServN_NumBroadcasts

each push server represents a single channel for a set of local networks, may have several broadcast addresses - for this channel

PushServN_PPrefix

path prefix for the database

PushServNumber

configure several push servers

single_instance

VSProperties()

defaultPropsPut(String, String, String)

finalize()

GetPropertiesInstance()

Use this function to access the instance of properties

getPropertiesList()

getProperty(String)

getPropertyInt(String)

list_properties(DataOutputStream)

list_push_serv_ids_by_ch_id(int)

Each acquisition server may transmit it's channel data to several push servers at the same time.

list_push_serv_ids_by_IP(String)

returns the Vector of Dictionaries of all push server Ids that broadcast something on given IP address.

save_app_defaults()

set_property(BufferedReader, DataOutputStream)

setProperty(String, String)

 private static VSProperties single_instance

 Properties defaultProps

 Properties applicationProps

 protected final String DatabaseEngine

the actual jdbc driver is customizable. by default we use postgresql

 protected final String DatabaseEngineClassName

driver

 protected final String DatabaseName

Note: it holds only the default name, and each connection may change this name to its own

 protected final String DatabaseUserName

 protected final String ListenSocket

 protected final String AcquisitionServersNumber

some parameters for acquisition server

 protected final String AcquisitionServerN_IP

 protected final String AcquisitionServerN_DefDescr

default description

 protected final String PushServNumber

configure several push servers

 protected final String PushServN_AcqServer

the Id for corresponding acquisition server. The idea is that channel ID is the acquisition server ID. But single acquisition server may distribute data to several distantly located push servers - in case that the distribution of network load is required. Each client, given its IP address have a set of nearest push servers, one per channel. This class should privide also the way to get all push servers for particular client. Remember - each push server may have only one incoming data stream from only one acquisition server.

 protected final String PushServN_IP

 protected final String PushServN_Control

Input control UDP port: a single computer may have several push server running on it. The only way those servers distinguish from each other is the incoming UDP control socket to listen. The control socket is specified from command line on startup.

 protected final String PushServN_BroadcastInPort

 protected final String PushServN_PPrefix

path prefix for the database

 protected final String PushServN_NumBroadcasts

each push server represents a single channel for a set of local networks, may have several broadcast addresses - for this channel

 protected final String PushServN_BroadcastsM_IP

the key is composed from base + pserv num + "_" + chan num

 protected final String PushServN_BroadcastsM_Port

 protected Vector allProps

 public VSProperties()

 public static synchronized VSProperties GetPropertiesInstance()

Use this function to access the instance of properties

 private void defaultPropsPut(String key,
                              String val,
                              String help)

 protected String getProperty(String key)

 protected int getPropertyInt(String key)

 protected void setProperty(String key,
                            String value)

 protected Vector getPropertiesList()

 protected void list_properties(DataOutputStream outputStream) throws IOException

 protected void set_property(BufferedReader inputReader,
                             DataOutputStream outputStream) throws IOException, SyntaxException

 protected void finalize() throws Throwable

Overrides:

finalize in class Object

 protected void save_app_defaults() throws Throwable

 protected Vector list_push_serv_ids_by_IP(String user_ip) throws UnknownHostException

returns the Vector of Dictionaries of all push server Ids that broadcast something on given IP address. Given push server ID you may get the corresponding channel. Format: key = "id", key = "ip", key = "port"

 protected Vector list_push_serv_ids_by_ch_id(int channel_id) throws UnknownHostException

Each acquisition server may transmit it's channel data to several push servers at the same time. Returns the Vector of String's. Acquisition server id and channel id is the same

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