org.openlowcode.server.runtime

Class ServerConnection

java.lang.Object

java.lang.Thread

org.openlowcode.server.runtime.ServerConnection

All Implemented Interfaces:

java.lang.Runnable

public class ServerConnection
extends java.lang.Thread

The component in the sever managing connections with the clients

Author:

Open Lowcode SAS

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

java.lang.Thread.State, java.lang.Thread.UncaughtExceptionHandler

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Constructor and Description
ServerConnection(java.net.Socket socket, OLcServer server, boolean messageaudit) Creates a server connection

Method Summary

Modifier and Type	Method and Description
SPage	getDefaultPage(SModule module) gets the default page for the module
SPage	getMainModuleStartPage() gets the main module start page for the server
static <E extends DataObject<E>> ActionAuthorization	isAuthorized(ActionExecution action, E object) checks if the action is authorized, limited access to pesistence
static ActionAuthorization	isAuthorized(ActionExecution action, SActionData actiondata, SecurityBuffer buffer) checks if the action is authorized, getting all the action data
void	logAction(ActionExecution action) logging the action on the server.
void	processCLink(java.lang.String address, MessageBufferedWriter writer) launches the action corresponding to the CLink, or throw a RuntimeException else
void	run()
void	sendClientVersionError(MessageWriter writer, java.lang.String clientversion) sends a client server version mismatch
void	sendPage(SPage page, MessageWriter writer, SecurityBuffer buffer, java.util.ArrayList<PageBufferSpec> clientpagesinbuffer) sends a page
void	setInactive() sets the connection to inactive.
void	setLoginWithContextAction(ActionExecution action, SActionData actiondata, MessageBufferedWriter writer) performs a login, keeping the action context.

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Constructor Detail

ServerConnection

public ServerConnection(java.net.Socket socket,
                        OLcServer server,
                        boolean messageaudit)

Creates a server connection

Parameters:

socket - server socket

server - main server class

messageaudit - true if messages should be audited in logs

Method Detail

processCLink

public void processCLink(java.lang.String address,
                         MessageBufferedWriter writer)
                  throws java.io.IOException

launches the action corresponding to the CLink, or throw a RuntimeException else

Parameters:

address - address to process

writer - message writer for sending the result of the action

Throws:

java.io.IOException - if any issue is encountered sending the action to the client

run

public void run()

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class java.lang.Thread

setLoginWithContextAction

public void setLoginWithContextAction(ActionExecution action,
                                      SActionData actiondata,
                                      MessageBufferedWriter writer)
                               throws java.io.IOException

performs a login, keeping the action context. This is typically used after time-out when user is already in the application

Parameters:

action - action to execute

actiondata - data to execute

writer - writer to provide output

Throws:

java.io.IOException - if any communication issue is encountered

sendClientVersionError

public void sendClientVersionError(MessageWriter writer,
                                   java.lang.String clientversion)
                            throws java.io.IOException

sends a client server version mismatch

Parameters:

writer - writer to communicate to the client

clientversion - client version

Throws:

java.io.IOException - if any transmission error is encountered

sendPage

public void sendPage(SPage page,
                     MessageWriter writer,
                     SecurityBuffer buffer,
                     java.util.ArrayList<PageBufferSpec> clientpagesinbuffer)
              throws java.io.IOException

sends a page

Parameters:

page - page to send

writer - writer to communicate back to the client

buffer - security buffer

clientpagesinbuffer - client pages already on the client

Throws:

java.io.IOException - if any communication issue is encountered

isAuthorized

public static <E extends DataObject<E>> ActionAuthorization isAuthorized(ActionExecution action,
                                                                         E object)

checks if the action is authorized, limited access to pesistence

Parameters:

action - action to check

object - context object

Returns:

the authorization

isAuthorized

public static ActionAuthorization isAuthorized(ActionExecution action,
                                               SActionData actiondata,
                                               SecurityBuffer buffer)

checks if the action is authorized, getting all the action data

Parameters:

action - action

actiondata - all action data

buffer - security buffer

Returns:

the action authorization

getDefaultPage

public SPage getDefaultPage(SModule module)

gets the default page for the module

Parameters:

module - module

Returns:

default page

getMainModuleStartPage

public SPage getMainModuleStartPage()

gets the main module start page for the server

Returns:

the main moduel start page

setInactive

public void setInactive()

sets the connection to inactive. When this is set, no new query will be accepted from clients

logAction

public void logAction(ActionExecution action)

logging the action on the server. This helps monitoring the business activity

Parameters:

action - action