Package org.apache.hadoop.crypto.key.kms.server

Class KMSMDCFilter

java.lang.Object

org.apache.hadoop.crypto.key.kms.server.KMSMDCFilter

All Implemented Interfaces:

javax.servlet.Filter

@Private
public class KMSMDCFilter
extends java.lang.Object
implements javax.servlet.Filter

Servlet filter that captures context of the HTTP request to be use in the scope of KMS calls on the server side.

Constructor Summary

Constructors

Constructor	Description
KMSMDCFilter()

Method Summary

Modifier and Type	Method	Description
void	destroy()
void	doFilter(javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, javax.servlet.FilterChain chain)
static java.lang.String	getMethod()
static java.lang.String	getRemoteClientAddress()
static org.apache.hadoop.security.UserGroupInformation	getUgi()
static java.lang.String	getURL()
void	init(javax.servlet.FilterConfig config)
static void	setContext(org.apache.hadoop.security.UserGroupInformation ugi, java.lang.String method, java.lang.String requestURL, java.lang.String remoteAddr)	Sets the context with the given parameters.

Methods inherited from class java.lang.Object

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

Constructor Detail

KMSMDCFilter

public KMSMDCFilter()

Method Detail

getUgi

public static org.apache.hadoop.security.UserGroupInformation getUgi()

getMethod

public static java.lang.String getMethod()

getURL

public static java.lang.String getURL()

getRemoteClientAddress

public static java.lang.String getRemoteClientAddress()

init

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

Specified by:

init in interface javax.servlet.Filter

Throws:

javax.servlet.ServletException

doFilter

public void doFilter(javax.servlet.ServletRequest request,
                     javax.servlet.ServletResponse response,
                     javax.servlet.FilterChain chain)
              throws java.io.IOException,
                     javax.servlet.ServletException

Specified by:

doFilter in interface javax.servlet.Filter

Throws:

java.io.IOException

javax.servlet.ServletException

destroy

public void destroy()

Specified by:

destroy in interface javax.servlet.Filter

setContext

@VisibleForTesting
public static void setContext(org.apache.hadoop.security.UserGroupInformation ugi,
                              java.lang.String method,
                              java.lang.String requestURL,
                              java.lang.String remoteAddr)

Sets the context with the given parameters.

Parameters:

ugi - the UserGroupInformation for the current request.

method - the http method

requestURL - the requested URL.

remoteAddr - the remote address of the client.