How to share single Filter instance between several ServletContextHandler's
0
In my code I am using a filter class from a 3rd party jar that can be instantiated once.
When I create my embedded jetty server instance, I have several ServletContextHandler and for each one of them I added above the filter.
Is there a way to share the instance filter between 2 or more context handlers?
See the code below:
public static void main (String args) {
try {
Server jettyServer = new Server(8080);
final HandlerList handlers = new HandlerList();
ServletContextHandler restCtx = initRestCtx();
ServletContextHandler wsCtx = initWsCtx();
handlers.setHandlers(new Handler{
restCtx,
wsCtx,
new DefaultHandler()});
jettyServer.setHandler(handlers);
jettyServer.start();
} catch (Exception e) {
log.error(String.format("An issue occur when starting server: %s",e.getMessage()));
}
}
private static ServletContextHandler initWsCtx() {
ServletContextHandler wsCtx = createSessionBasedContextHandler();
wsCtx.setContextPath("/ws");
wsCtx.addFilter(new MyFilter(), "/*", EnumSet.of(DispatcherType.REQUEST));
return wsCtx;
}
private static ServletContextHandler initRestCtx() {
ServletContextHandler restCtx = createSessionBasedContextHandler();
restCtx.setContextPath("/rest");
restCtx.addFilter(new MyFilter(), "/*", EnumSet.of(DispatcherType.REQUEST));
return restCtx;
}
private static ServletContextHandler createSessionBasedContextHandler() {
ServletContextHandler servletContextHandler = new ServletContextHandler(ServletContextHandler.SESSIONS);
servletContextHandler
.getSessionHandler()
.setMaxInactiveInterval(30);
return servletContextHandler;
}
I have simplified the code here so I must have 2 different contexts and I can not make it to be one context.
java servlets servlet-filters embedded-jetty
edited Nov 15 '18 at 22:46
Joakim Erdfelt
33.2k45895
asked Nov 15 '18 at 13:51
Shirly TalShirly Tal
1
add a comment |
0
In my code I am using a filter class from a 3rd party jar that can be instantiated once.
When I create my embedded jetty server instance, I have several ServletContextHandler and for each one of them I added above the filter.
Is there a way to share the instance filter between 2 or more context handlers?
See the code below:
public static void main (String args) {
try {
Server jettyServer = new Server(8080);
final HandlerList handlers = new HandlerList();
ServletContextHandler restCtx = initRestCtx();
ServletContextHandler wsCtx = initWsCtx();
handlers.setHandlers(new Handler{
restCtx,
wsCtx,
new DefaultHandler()});
jettyServer.setHandler(handlers);
jettyServer.start();
} catch (Exception e) {
log.error(String.format("An issue occur when starting server: %s",e.getMessage()));
}
}
private static ServletContextHandler initWsCtx() {
ServletContextHandler wsCtx = createSessionBasedContextHandler();
wsCtx.setContextPath("/ws");
wsCtx.addFilter(new MyFilter(), "/*", EnumSet.of(DispatcherType.REQUEST));
return wsCtx;
}
private static ServletContextHandler initRestCtx() {
ServletContextHandler restCtx = createSessionBasedContextHandler();
restCtx.setContextPath("/rest");
restCtx.addFilter(new MyFilter(), "/*", EnumSet.of(DispatcherType.REQUEST));
return restCtx;
}
private static ServletContextHandler createSessionBasedContextHandler() {
ServletContextHandler servletContextHandler = new ServletContextHandler(ServletContextHandler.SESSIONS);
servletContextHandler
.getSessionHandler()
.setMaxInactiveInterval(30);
return servletContextHandler;
}
I have simplified the code here so I must have 2 different contexts and I can not make it to be one context.
java servlets servlet-filters embedded-jetty
edited Nov 15 '18 at 22:46
Joakim Erdfelt
33.2k45895
asked Nov 15 '18 at 13:51
Shirly TalShirly Tal
1
Does the Filter use or store a reference to thejavax.servlet.ServletContextduring initialization?
– Joakim Erdfelt
Nov 15 '18 at 14:08
Explain why you cannot have just 1ServletContextHandler? so far, from your example it looks quite possible to have just 1.
– Joakim Erdfelt
Nov 15 '18 at 14:09
The filter does not use or store a reference of the ServletContext. How can I do it? How can it help?
– Shirly Tal
Nov 18 '18 at 7:44
Each ServletContextHandler instance need to be initialized differently, some of them is initialized with ServletContextHandler.NO_SESSIONS other with ServletContextHandler.SESSIONS. Moreover I have contexts that have preAuthFilters and EventListener that other contexts don't have.
– Shirly Tal
Nov 18 '18 at 7:51
add a comment |
0
0
0
In my code I am using a filter class from a 3rd party jar that can be instantiated once.
When I create my embedded jetty server instance, I have several ServletContextHandler and for each one of them I added above the filter.
Is there a way to share the instance filter between 2 or more context handlers?
See the code below:
public static void main (String args) {
try {
Server jettyServer = new Server(8080);
final HandlerList handlers = new HandlerList();
ServletContextHandler restCtx = initRestCtx();
ServletContextHandler wsCtx = initWsCtx();
handlers.setHandlers(new Handler{
restCtx,
wsCtx,
new DefaultHandler()});
jettyServer.setHandler(handlers);
jettyServer.start();
} catch (Exception e) {
log.error(String.format("An issue occur when starting server: %s",e.getMessage()));
}
}
private static ServletContextHandler initWsCtx() {
ServletContextHandler wsCtx = createSessionBasedContextHandler();
wsCtx.setContextPath("/ws");
wsCtx.addFilter(new MyFilter(), "/*", EnumSet.of(DispatcherType.REQUEST));
return wsCtx;
}
private static ServletContextHandler initRestCtx() {
ServletContextHandler restCtx = createSessionBasedContextHandler();
restCtx.setContextPath("/rest");
restCtx.addFilter(new MyFilter(), "/*", EnumSet.of(DispatcherType.REQUEST));
return restCtx;
}
private static ServletContextHandler createSessionBasedContextHandler() {
ServletContextHandler servletContextHandler = new ServletContextHandler(ServletContextHandler.SESSIONS);
servletContextHandler
.getSessionHandler()
.setMaxInactiveInterval(30);
return servletContextHandler;
}
I have simplified the code here so I must have 2 different contexts and I can not make it to be one context.
java servlets servlet-filters embedded-jetty
edited Nov 15 '18 at 22:46
Joakim Erdfelt
33.2k45895
asked Nov 15 '18 at 13:51
Shirly TalShirly Tal
1
In my code I am using a filter class from a 3rd party jar that can be instantiated once.
When I create my embedded jetty server instance, I have several ServletContextHandler and for each one of them I added above the filter.
Is there a way to share the instance filter between 2 or more context handlers?
See the code below:
public static void main (String args) {
try {
Server jettyServer = new Server(8080);
final HandlerList handlers = new HandlerList();
ServletContextHandler restCtx = initRestCtx();
ServletContextHandler wsCtx = initWsCtx();
handlers.setHandlers(new Handler{
restCtx,
wsCtx,
new DefaultHandler()});
jettyServer.setHandler(handlers);
jettyServer.start();
} catch (Exception e) {
log.error(String.format("An issue occur when starting server: %s",e.getMessage()));
}
}
private static ServletContextHandler initWsCtx() {
ServletContextHandler wsCtx = createSessionBasedContextHandler();
wsCtx.setContextPath("/ws");
wsCtx.addFilter(new MyFilter(), "/*", EnumSet.of(DispatcherType.REQUEST));
return wsCtx;
}
private static ServletContextHandler initRestCtx() {
ServletContextHandler restCtx = createSessionBasedContextHandler();
restCtx.setContextPath("/rest");
restCtx.addFilter(new MyFilter(), "/*", EnumSet.of(DispatcherType.REQUEST));
return restCtx;
}
private static ServletContextHandler createSessionBasedContextHandler() {
ServletContextHandler servletContextHandler = new ServletContextHandler(ServletContextHandler.SESSIONS);
servletContextHandler
.getSessionHandler()
.setMaxInactiveInterval(30);
return servletContextHandler;
}
I have simplified the code here so I must have 2 different contexts and I can not make it to be one context.
java servlets servlet-filters embedded-jetty
java servlets servlet-filters embedded-jetty
edited Nov 15 '18 at 22:46
Joakim Erdfelt
33.2k45895
asked Nov 15 '18 at 13:51
Shirly TalShirly Tal
1
edited Nov 15 '18 at 22:46
Joakim Erdfelt
33.2k45895
asked Nov 15 '18 at 13:51
Shirly TalShirly Tal
1
edited Nov 15 '18 at 22:46
Joakim Erdfelt
33.2k45895
edited Nov 15 '18 at 22:46
Joakim Erdfelt
33.2k45895
edited Nov 15 '18 at 22:46
Joakim Erdfelt
33.2k45895
33.2k45895
asked Nov 15 '18 at 13:51
Shirly TalShirly Tal
1
asked Nov 15 '18 at 13:51
Shirly TalShirly Tal
1
asked Nov 15 '18 at 13:51
Shirly TalShirly Tal
1
1
Does the Filter use or store a reference to thejavax.servlet.ServletContextduring initialization?
– Joakim Erdfelt
Nov 15 '18 at 14:08
Explain why you cannot have just 1ServletContextHandler? so far, from your example it looks quite possible to have just 1.
– Joakim Erdfelt
Nov 15 '18 at 14:09
The filter does not use or store a reference of the ServletContext. How can I do it? How can it help?
– Shirly Tal
Nov 18 '18 at 7:44
Each ServletContextHandler instance need to be initialized differently, some of them is initialized with ServletContextHandler.NO_SESSIONS other with ServletContextHandler.SESSIONS. Moreover I have contexts that have preAuthFilters and EventListener that other contexts don't have.
– Shirly Tal
Nov 18 '18 at 7:51
add a comment |
Does the Filter use or store a reference to thejavax.servlet.ServletContextduring initialization?
– Joakim Erdfelt
Nov 15 '18 at 14:08
Explain why you cannot have just 1ServletContextHandler? so far, from your example it looks quite possible to have just 1.
– Joakim Erdfelt
Nov 15 '18 at 14:09
The filter does not use or store a reference of the ServletContext. How can I do it? How can it help?
– Shirly Tal
Nov 18 '18 at 7:44
Each ServletContextHandler instance need to be initialized differently, some of them is initialized with ServletContextHandler.NO_SESSIONS other with ServletContextHandler.SESSIONS. Moreover I have contexts that have preAuthFilters and EventListener that other contexts don't have.
– Shirly Tal
Nov 18 '18 at 7:51
Does the Filter use or store a reference to the
javax.servlet.ServletContext during initialization?– Joakim Erdfelt
Nov 15 '18 at 14:08
Does the Filter use or store a reference to the
javax.servlet.ServletContext during initialization?– Joakim Erdfelt
Nov 15 '18 at 14:08
Explain why you cannot have just 1
ServletContextHandler? so far, from your example it looks quite possible to have just 1.– Joakim Erdfelt
Nov 15 '18 at 14:09
Explain why you cannot have just 1
ServletContextHandler? so far, from your example it looks quite possible to have just 1.– Joakim Erdfelt
Nov 15 '18 at 14:09
The filter does not use or store a reference of the ServletContext. How can I do it? How can it help?
– Shirly Tal
Nov 18 '18 at 7:44
The filter does not use or store a reference of the ServletContext. How can I do it? How can it help?
– Shirly Tal
Nov 18 '18 at 7:44
Each ServletContextHandler instance need to be initialized differently, some of them is initialized with ServletContextHandler.NO_SESSIONS other with ServletContextHandler.SESSIONS. Moreover I have contexts that have preAuthFilters and EventListener that other contexts don't have.
– Shirly Tal
Nov 18 '18 at 7:51
Each ServletContextHandler instance need to be initialized differently, some of them is initialized with ServletContextHandler.NO_SESSIONS other with ServletContextHandler.SESSIONS. Moreover I have contexts that have preAuthFilters and EventListener that other contexts don't have.
– Shirly Tal
Nov 18 '18 at 7:51
add a comment |
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Does the Filter use or store a reference to the
javax.servlet.ServletContextduring initialization?– Joakim Erdfelt
Nov 15 '18 at 14:08
Explain why you cannot have just 1
ServletContextHandler? so far, from your example it looks quite possible to have just 1.– Joakim Erdfelt
Nov 15 '18 at 14:09
The filter does not use or store a reference of the ServletContext. How can I do it? How can it help?
– Shirly Tal
Nov 18 '18 at 7:44
Each ServletContextHandler instance need to be initialized differently, some of them is initialized with ServletContextHandler.NO_SESSIONS other with ServletContextHandler.SESSIONS. Moreover I have contexts that have preAuthFilters and EventListener that other contexts don't have.
– Shirly Tal
Nov 18 '18 at 7:51