Pass value to injected EJB
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Pass value to injected EJB
$begingroup$
I have an EJB application that consists of two beans, Bean1 and Bean2, where Bean2 is injected in Bean1.
Bean1 receives HTTP requests from the browser, calls a method in Bean2, gets the result, and sends the HTTP response.
Also, Bean1 has access to the HttpSession object, where the userId of the user that logged in is stored. Bean2 does NOT have access to the HttpSession object.
The application needs to log messages (using sl4j/logback, for example). It could log the message in Bean1 or Bean2 methods, and when it logs a message, it has to include the userId of the session in the log entry.
Since Bean2 doesn't have the userId, it needs to get it from Bean1. The question is what is the best way to achieve that. What I DON'T want to do is to add a userId field to each method in Bean2, as there are many Bean1s and Bean2s in the application, and it is not maintainable. Any suggestions will be welcome.
@Path("someurl")
@Produces({MediaType.APPLICATION_JSON})
@Consumes({MediaType.APPLICATION_JSON})
@Stateless
public class Bean1 {
@Context
HttpServletRequest httpRequest;
@Inject
private Bean2 bean2;
public Response someMethod1() {
final HttpSession session = httpRequest.getSession();
// get the userId from the session
String s = bean2.someMethod2();
// return Response
}
}
@Stateless
public class Bean2 {
public String someMethod2() {
// ....
return "something";
}
}
java dependency-injection
asked 6 mins ago
ps0604ps0604
11314
$endgroup$
add a comment |
$begingroup$
I have an EJB application that consists of two beans, Bean1 and Bean2, where Bean2 is injected in Bean1.
Bean1 receives HTTP requests from the browser, calls a method in Bean2, gets the result, and sends the HTTP response.
Also, Bean1 has access to the HttpSession object, where the userId of the user that logged in is stored. Bean2 does NOT have access to the HttpSession object.
The application needs to log messages (using sl4j/logback, for example). It could log the message in Bean1 or Bean2 methods, and when it logs a message, it has to include the userId of the session in the log entry.
Since Bean2 doesn't have the userId, it needs to get it from Bean1. The question is what is the best way to achieve that. What I DON'T want to do is to add a userId field to each method in Bean2, as there are many Bean1s and Bean2s in the application, and it is not maintainable. Any suggestions will be welcome.
@Path("someurl")
@Produces({MediaType.APPLICATION_JSON})
@Consumes({MediaType.APPLICATION_JSON})
@Stateless
public class Bean1 {
@Context
HttpServletRequest httpRequest;
@Inject
private Bean2 bean2;
public Response someMethod1() {
final HttpSession session = httpRequest.getSession();
// get the userId from the session
String s = bean2.someMethod2();
// return Response
}
}
@Stateless
public class Bean2 {
public String someMethod2() {
// ....
return "something";
}
}
java dependency-injection
asked 6 mins ago
ps0604ps0604
11314
$endgroup$
add a comment |
$begingroup$
I have an EJB application that consists of two beans, Bean1 and Bean2, where Bean2 is injected in Bean1.
Bean1 receives HTTP requests from the browser, calls a method in Bean2, gets the result, and sends the HTTP response.
Also, Bean1 has access to the HttpSession object, where the userId of the user that logged in is stored. Bean2 does NOT have access to the HttpSession object.
The application needs to log messages (using sl4j/logback, for example). It could log the message in Bean1 or Bean2 methods, and when it logs a message, it has to include the userId of the session in the log entry.
Since Bean2 doesn't have the userId, it needs to get it from Bean1. The question is what is the best way to achieve that. What I DON'T want to do is to add a userId field to each method in Bean2, as there are many Bean1s and Bean2s in the application, and it is not maintainable. Any suggestions will be welcome.
@Path("someurl")
@Produces({MediaType.APPLICATION_JSON})
@Consumes({MediaType.APPLICATION_JSON})
@Stateless
public class Bean1 {
@Context
HttpServletRequest httpRequest;
@Inject
private Bean2 bean2;
public Response someMethod1() {
final HttpSession session = httpRequest.getSession();
// get the userId from the session
String s = bean2.someMethod2();
// return Response
}
}
@Stateless
public class Bean2 {
public String someMethod2() {
// ....
return "something";
}
}
java dependency-injection
asked 6 mins ago
ps0604ps0604
11314
$endgroup$
I have an EJB application that consists of two beans, Bean1 and Bean2, where Bean2 is injected in Bean1.
Bean1 receives HTTP requests from the browser, calls a method in Bean2, gets the result, and sends the HTTP response.
Also, Bean1 has access to the HttpSession object, where the userId of the user that logged in is stored. Bean2 does NOT have access to the HttpSession object.
The application needs to log messages (using sl4j/logback, for example). It could log the message in Bean1 or Bean2 methods, and when it logs a message, it has to include the userId of the session in the log entry.
Since Bean2 doesn't have the userId, it needs to get it from Bean1. The question is what is the best way to achieve that. What I DON'T want to do is to add a userId field to each method in Bean2, as there are many Bean1s and Bean2s in the application, and it is not maintainable. Any suggestions will be welcome.
@Path("someurl")
@Produces({MediaType.APPLICATION_JSON})
@Consumes({MediaType.APPLICATION_JSON})
@Stateless
public class Bean1 {
@Context
HttpServletRequest httpRequest;
@Inject
private Bean2 bean2;
public Response someMethod1() {
final HttpSession session = httpRequest.getSession();
// get the userId from the session
String s = bean2.someMethod2();
// return Response
}
}
@Stateless
public class Bean2 {
public String someMethod2() {
// ....
return "something";
}
}
java dependency-injection
java dependency-injection
asked 6 mins ago
ps0604ps0604
11314
asked 6 mins ago
ps0604ps0604
11314
asked 6 mins ago
ps0604ps0604
11314
asked 6 mins ago
ps0604ps0604
11314
asked 6 mins ago
ps0604ps0604
11314
11314
add a comment |
add a comment |
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