com.evelopers.unimod.adapter.servlet
Class HttpServletAdapter

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          com.evelopers.unimod.adapter.servlet.HttpServletAdapter

All Implemented Interfaces:

java.io.Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

public class HttpServletAdapter

extends javax.servlet.http.HttpServlet

Servlet Container Adapter for State Machine Engine.

Usual Servlet that parses request from client and pass it to state machien engine. Must be inited with state machine name (STATE_MACHINE_NAME) and config store (CONFIGURATION_STORE_CONTEXT).

On init tries to load given state machine with command getClass().getClassLoader().getResourceAsStream(stateMachineName + ".xml")

Possible values for config store are:

app - state machine config will be store in application context

user - state machine config will be store in user's session

Example of part of web.xml that contains servlet adapter description:
<servlet> <servlet-name> HttpServletAdapter </servlet-name> <servlet-class> com.evelopers.unimod.adapter.servlet.HttpServletAdapter </servlet-class> <init-param> <param-name>MODEL_URL</param-name> <param-value>resources/A1.xml</param-value> </init-param> <init-param> <param-name>LOGGER_NAME</param-name> <param-value>CONSOLE</param-value> </init-param> <init-param> <param-name>DEBUG_MODE</param-name> <param-value>on</param-value> </init-param> <init-param> <param-name>DEBUG_PORT</param-name> <param-value>5006</param-value> </init-param> <init-param> <param-name>MUST_SUSPEND</param-name> <param-value>false</param-value> </init-param> <init-param> <param-name>EVENT_PROCESSOR_LISTENERS</param-name> <param-value> test.MyFirstEventProcessorListener, test.MySecondEventProcessorListener </param-value> </init-param> <init-param> <param-name>EXCEPTION_HANDLERS</param-name> <param-value> test.MyFirstExceptionHandler, test.MySecondExceptionHandler </param-value> </init-param> </servlet> <servlet-mapping> <servlet-name> HttpServletAdapter </servlet-name> <url-pattern> /controller </url-pattern> </servlet-mapping>

See Also:

Serialized Form

Field Summary

static java.lang.String	INIT_PARAMETER_DEBUG_MODE
static java.lang.String	INIT_PARAMETER_DEBUG_PORT
static java.lang.String	INIT_PARAMETER_EVENT_PROCESSOR_LISTENERS
static java.lang.String	INIT_PARAMETER_EXCEPTION_HANDLERS
static java.lang.String	INIT_PARAMETER_LOGGER_NAME
static java.lang.String	INIT_PARAMETER_MODEL_URL
static java.lang.String	INIT_PARAMETER_MUST_SUSPEND
static java.lang.String	PARAMETER_EVENT_NAME
static java.lang.String	PARAMETER_HTTP_REQUEST
static java.lang.String	PARAMETER_HTTP_RESPONSE
static java.lang.String	VALUE_CONSOLE_LOGGER
static java.lang.String	VALUE_DEBUG_MODE_ON
static int	VALUE_DEFAULT_PORT

Constructor Summary

HttpServletAdapter()

Method Summary

void	destroy()
protected boolean	getDebugMode(javax.servlet.ServletConfig config)
protected int	getDebugPort(javax.servlet.ServletConfig config)
protected java.util.List	getEventProcessorListeners(javax.servlet.ServletConfig config)
protected java.util.List	getExceptionHandlers(javax.servlet.ServletConfig config)
protected java.lang.String	getModelURL(javax.servlet.ServletConfig config)
protected boolean	getMustSuspend(javax.servlet.ServletConfig config)
void	init(javax.servlet.ServletConfig config)
void	service(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res)

Methods inherited from class javax.servlet.http.HttpServlet

doDelete, doGet, doHead, doOptions, doPost, doPut, doTrace, getLastModified, service

Methods inherited from class javax.servlet.GenericServlet

getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, log, log

Methods inherited from class java.lang.Object

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

Field Detail

INIT_PARAMETER_MODEL_URL

public static final java.lang.String INIT_PARAMETER_MODEL_URL

See Also:

Constant Field Values

INIT_PARAMETER_LOGGER_NAME

public static final java.lang.String INIT_PARAMETER_LOGGER_NAME

See Also:

Constant Field Values

INIT_PARAMETER_DEBUG_MODE

public static final java.lang.String INIT_PARAMETER_DEBUG_MODE

See Also:

Constant Field Values

INIT_PARAMETER_DEBUG_PORT

public static final java.lang.String INIT_PARAMETER_DEBUG_PORT

See Also:

Constant Field Values

INIT_PARAMETER_MUST_SUSPEND

public static final java.lang.String INIT_PARAMETER_MUST_SUSPEND

See Also:

Constant Field Values

INIT_PARAMETER_EVENT_PROCESSOR_LISTENERS

public static final java.lang.String INIT_PARAMETER_EVENT_PROCESSOR_LISTENERS

See Also:

Constant Field Values

INIT_PARAMETER_EXCEPTION_HANDLERS

public static final java.lang.String INIT_PARAMETER_EXCEPTION_HANDLERS

See Also:

Constant Field Values

VALUE_CONSOLE_LOGGER

public static final java.lang.String VALUE_CONSOLE_LOGGER

See Also:

Constant Field Values

VALUE_DEBUG_MODE_ON

public static final java.lang.String VALUE_DEBUG_MODE_ON

See Also:

Constant Field Values

VALUE_DEFAULT_PORT

public static final int VALUE_DEFAULT_PORT

See Also:

Constant Field Values

PARAMETER_EVENT_NAME

public static final java.lang.String PARAMETER_EVENT_NAME

See Also:

Constant Field Values

PARAMETER_HTTP_REQUEST

public static final java.lang.String PARAMETER_HTTP_REQUEST

See Also:

Constant Field Values

PARAMETER_HTTP_RESPONSE

public static final java.lang.String PARAMETER_HTTP_RESPONSE

See Also:

Constant Field Values

Constructor Detail

HttpServletAdapter

public HttpServletAdapter()

Method Detail

init

public void init(javax.servlet.ServletConfig config)
          throws javax.servlet.ServletException

Throws:

javax.servlet.ServletException

destroy

public void destroy()

service

public void service(javax.servlet.http.HttpServletRequest req,
                    javax.servlet.http.HttpServletResponse res)
             throws javax.servlet.ServletException,
                    java.io.IOException

Throws:

javax.servlet.ServletException

java.io.IOException

getModelURL

protected java.lang.String getModelURL(javax.servlet.ServletConfig config)
                                throws javax.servlet.ServletException

Throws:

javax.servlet.ServletException

getEventProcessorListeners

protected java.util.List getEventProcessorListeners(javax.servlet.ServletConfig config)
                                             throws com.evelopers.common.exception.SystemException

Throws:

com.evelopers.common.exception.SystemException

getExceptionHandlers

protected java.util.List getExceptionHandlers(javax.servlet.ServletConfig config)
                                       throws com.evelopers.common.exception.SystemException

Throws:

com.evelopers.common.exception.SystemException

getDebugMode

protected boolean getDebugMode(javax.servlet.ServletConfig config)
                        throws com.evelopers.common.exception.SystemException

Throws:

com.evelopers.common.exception.SystemException

getDebugPort

protected int getDebugPort(javax.servlet.ServletConfig config)

getMustSuspend

protected boolean getMustSuspend(javax.servlet.ServletConfig config)