Package com.google.gerrit.httpd.raw

Class ResourceServlet

java.lang.Object

javax.servlet.GenericServlet

javax.servlet.http.HttpServlet

com.google.gerrit.httpd.raw.ResourceServlet

All Implemented Interfaces:

Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

Direct Known Subclasses:

SiteStaticDirectoryServlet

public abstract class ResourceServlet
extends javax.servlet.http.HttpServlet

Base class for serving static resources.

Supports caching, ETags, basic content type detection, and limited gzip compression.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ResourceServlet.Resource
static class	ResourceServlet.Weigher

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ResourceServlet(com.google.common.cache.Cache<Path,ResourceServlet.Resource> cache, boolean refresh)
protected	ResourceServlet(com.google.common.cache.Cache<Path,ResourceServlet.Resource> cache, boolean refresh, boolean cacheOnClient)

Method Summary

Modifier and Type	Method	Description
protected static String	contentType(String name)
protected void	doGet(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse rsp)
protected FileTime	getLastModifiedTime(Path p)
protected abstract Path	getResourcePath(String pathInfo)	Get the resource path on the filesystem that should be served for this request.
protected ResourceServlet.Resource	processResourceBeforeServe(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse rsp, ResourceServlet.Resource resource)	Edits the resource before adding it to the response.
protected boolean	shouldProcessResourceBeforeServe(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse rsp, Path p)	Indicates that resource requires some processing before being served.

Methods inherited from class javax.servlet.http.HttpServlet

doDelete, doHead, doOptions, doPost, doPut, doTrace, getLastModified, service, service

Methods inherited from class javax.servlet.GenericServlet

destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, init, log, log

Methods inherited from class java.lang.Object

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

Constructor Detail

ResourceServlet

protected ResourceServlet(com.google.common.cache.Cache<Path,ResourceServlet.Resource> cache,
                          boolean refresh)

ResourceServlet

protected ResourceServlet(com.google.common.cache.Cache<Path,ResourceServlet.Resource> cache,
                          boolean refresh,
                          boolean cacheOnClient)

Method Detail

contentType

protected static String contentType(String name)

getResourcePath

protected abstract Path getResourcePath(String pathInfo)
                                 throws IOException

Get the resource path on the filesystem that should be served for this request.

Parameters:

pathInfo - result of HttpServletRequest.getPathInfo().

Returns:

path where static content can be found.

Throws:

IOException - if an error occurred resolving the resource.

shouldProcessResourceBeforeServe

protected boolean shouldProcessResourceBeforeServe(javax.servlet.http.HttpServletRequest req,
                                                   javax.servlet.http.HttpServletResponse rsp,
                                                   Path p)

Indicates that resource requires some processing before being served.

If true, the caching headers in response are set to not cache. Additionally, streaming option is disabled.

Parameters:

req - the HTTP servlet request

rsp - the HTTP servlet response

p - URL path

Returns:

true if the processResourceBeforeServe(HttpServletRequest, HttpServletResponse, Resource) should be called.

processResourceBeforeServe

protected ResourceServlet.Resource processResourceBeforeServe(javax.servlet.http.HttpServletRequest req,
                                                              javax.servlet.http.HttpServletResponse rsp,
                                                              ResourceServlet.Resource resource)

Edits the resource before adding it to the response.

Parameters:

req - the HTTP servlet request

rsp - the HTTP servlet response

getLastModifiedTime

protected FileTime getLastModifiedTime(Path p)
                                throws IOException

Throws:

IOException

doGet

protected void doGet(javax.servlet.http.HttpServletRequest req,
                     javax.servlet.http.HttpServletResponse rsp)
              throws IOException

Overrides:

doGet in class javax.servlet.http.HttpServlet

Throws:

IOException