Package chapters.mdc
Class UserServletFilter
java.lang.Object
chapters.mdc.UserServletFilter
- All Implemented Interfaces:
javax.servlet.Filter
A simple servlet filter that puts the username
found either in the Principal.
The value is removed from the MDC once the request has been fully processed.
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Field Summary
Fields -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoiddestroy()voiddoFilter(javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, javax.servlet.FilterChain chain) voidinit(javax.servlet.FilterConfig arg0) private booleanregisterUsername(String username) Register the user in the MDC under USER_KEY.
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Field Details
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USER_KEY
- See Also:
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Constructor Details
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UserServletFilter
public UserServletFilter()
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Method Details
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destroy
public void destroy()- Specified by:
destroyin interfacejavax.servlet.Filter
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doFilter
public void doFilter(javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, javax.servlet.FilterChain chain) throws IOException, javax.servlet.ServletException - Specified by:
doFilterin interfacejavax.servlet.Filter- Throws:
IOExceptionjavax.servlet.ServletException
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init
public void init(javax.servlet.FilterConfig arg0) throws javax.servlet.ServletException - Specified by:
initin interfacejavax.servlet.Filter- Throws:
javax.servlet.ServletException
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registerUsername
Register the user in the MDC under USER_KEY.- Parameters:
username-- Returns:
- true id the user can be successfully registered
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