Package org.eclipse.jgit.http.server.glue

Class MetaFilter

java.lang.Object

org.eclipse.jgit.http.server.glue.MetaFilter

All Implemented Interfaces:

javax.servlet.Filter

Direct Known Subclasses:

GitFilter

public class MetaFilter
extends java.lang.Object
implements javax.servlet.Filter

Generic container filter to manage routing to different pipelines.

Callers can create and configure a new processing pipeline by using one of the serve(String) or serveRegex(String) methods to allocate a binder for a particular URL pattern.

Registered filters and servlets are initialized lazily, usually during the first request. Once initialized the bindings in this servlet cannot be modified without destroying the servlet and thereby destroying all registered filters and servlets.

Field Summary

Fields

Modifier and Type	Field	Description
private java.util.List<ServletBinderImpl>	bindings
private UrlPipeline[]	pipelines
(package private) static java.lang.String	REGEX_GROUPS
private javax.servlet.ServletContext	servletContext

Constructor Summary

Constructors

Constructor	Description
MetaFilter()	Empty filter with no bindings.

Method Summary

Modifier and Type	Method	Description
private UrlPipeline[]	createPipelines()
void	destroy()
void	doFilter(javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, javax.servlet.FilterChain chain)
private UrlPipeline	find(javax.servlet.http.HttpServletRequest req)
private UrlPipeline[]	getPipelines()
void	init(javax.servlet.FilterConfig filterConfig)
private static java.util.Set<java.lang.Object>	newIdentitySet()
protected ServletBinder	register(ServletBinder b)	Configure a newly created binder.
private ServletBinder	register(ServletBinderImpl b)
ServletBinder	serve(java.lang.String path)	Construct a binding for a specific path.
ServletBinder	serveRegex(java.lang.String expression)	Construct a binding for a regular expression.
ServletBinder	serveRegex(java.util.regex.Pattern pattern)	Construct a binding for a regular expression.

Methods inherited from class java.lang.Object

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

Field Detail

REGEX_GROUPS

static final java.lang.String REGEX_GROUPS

See Also:

Constant Field Values

servletContext

private javax.servlet.ServletContext servletContext

bindings

private final java.util.List<ServletBinderImpl> bindings

pipelines

private volatile UrlPipeline[] pipelines

Constructor Detail

MetaFilter

public MetaFilter()

Empty filter with no bindings.

Method Detail

serve

public ServletBinder serve(java.lang.String path)

Construct a binding for a specific path.

Parameters:

path - pattern to match.

Returns:

binder for the passed path.

serveRegex

public ServletBinder serveRegex(java.lang.String expression)

Construct a binding for a regular expression.

Parameters:

expression - the regular expression to pattern match the URL against.

Returns:

binder for the passed expression.

serveRegex

public ServletBinder serveRegex(java.util.regex.Pattern pattern)

Construct a binding for a regular expression.

Parameters:

pattern - the regular expression to pattern match the URL against.

Returns:

binder for the passed expression.

init

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

Specified by:

init in interface javax.servlet.Filter

Throws:

javax.servlet.ServletException

destroy

public void destroy()

Specified by:

destroy in interface javax.servlet.Filter

newIdentitySet

private static java.util.Set<java.lang.Object> newIdentitySet()

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

find

private UrlPipeline find(javax.servlet.http.HttpServletRequest req)
                  throws javax.servlet.ServletException

Throws:

javax.servlet.ServletException

register

private ServletBinder register(ServletBinderImpl b)

register

protected ServletBinder register(ServletBinder b)

Configure a newly created binder.

Parameters:

b - the newly created binder.

Returns:

binder for the caller, potentially after adding one or more filters into the pipeline.

getPipelines

private UrlPipeline[] getPipelines()
                            throws javax.servlet.ServletException

Throws:

javax.servlet.ServletException

createPipelines

private UrlPipeline[] createPipelines()
                               throws javax.servlet.ServletException

Throws:

javax.servlet.ServletException