Class ResourceHandler

java.lang.Object
org.eclipse.jetty.util.component.AbstractLifeCycle
org.eclipse.jetty.util.component.ContainerLifeCycle
org.eclipse.jetty.server.handler.AbstractHandler
org.eclipse.jetty.server.handler.AbstractHandlerContainer
org.eclipse.jetty.server.handler.HandlerWrapper
org.eclipse.jetty.server.handler.ResourceHandler
All Implemented Interfaces:
Handler, HandlerContainer, ResourceService.WelcomeFactory, Container, Destroyable, Dumpable, Dumpable.DumpableContainer, LifeCycle, ResourceFactory
public class ResourceHandler extends HandlerWrapper implements ResourceFactory, ResourceService.WelcomeFactory
Resource Handler. This handle will serve static content and handle If-Modified-Since headers. No caching is done. Requests for resources that do not exist are let pass (Eg no 404's).

  • Field Details

  • Constructor Details

    • ResourceHandler

      public ResourceHandler(ResourceService resourceService)

    • ResourceHandler

      public ResourceHandler()

  • Method Details

    • getWelcomeFile

      public String getWelcomeFile(String pathInContext)
      Description copied from interface: ResourceService.WelcomeFactory
      Finds a matching welcome file for the supplied Resource.
      Specified by:
      getWelcomeFile in interface ResourceService.WelcomeFactory
      Parameters:
      pathInContext - the path of the request
      Returns:
      The path of the matching welcome file in context or null.

    • doStart

      public void doStart() throws Exception
      Description copied from class: ContainerLifeCycle
      Starts the managed lifecycle beans in the order they were added.
      Overrides:
      doStart in class AbstractHandler
      Throws:
      Exception

    • getBaseResource

      public Resource getBaseResource()
      Returns:
      Returns the resourceBase.

    • getCacheControl

      public String getCacheControl()
      Returns:
      the cacheControl header to set on all static content.

    • getGzipEquivalentFileExtensions

      public List<String> getGzipEquivalentFileExtensions()
      Returns:
      file extensions that signify that a file is gzip compressed. Eg ".svgz"

    • getMimeTypes

      public MimeTypes getMimeTypes()

    • getMinAsyncContentLength

      @Deprecated public int getMinAsyncContentLength()
      Deprecated.
      Get the minimum content length for async handling.
      Returns:
      The minimum size in bytes of the content before asynchronous handling is used, or -1 for no async handling or 0 (default) for using ServletResponse.getBufferSize() as the minimum length.

    • getMinMemoryMappedContentLength

      @Deprecated public int getMinMemoryMappedContentLength()
      Deprecated.
      Get minimum memory mapped file content length.
      Returns:
      the minimum size in bytes of a file resource that will be served using a memory mapped buffer, or -1 (default) for no memory mapped buffers.

    • getResource

      public Resource getResource(String path)
      Description copied from interface: ResourceFactory
      Get a resource for a path.
      Specified by:
      getResource in interface ResourceFactory
      Parameters:
      path - The path to the resource
      Returns:
      The resource or null

    • getResourceBase

      public String getResourceBase()
      Returns:
      Returns the base resource as a string.

    • getStylesheet

      public Resource getStylesheet()
      Returns:
      Returns the stylesheet as a Resource.

    • getDefaultStylesheet

      public static Resource getDefaultStylesheet()

    • getWelcomeFiles

      public String[] getWelcomeFiles()

    • handle

      public void handle(String target, Request baseRequest, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) throws IOException, javax.servlet.ServletException
      Description copied from interface: Handler
      Handle a request.
      Specified by:
      handle in interface Handler
      Overrides:
      handle in class HandlerWrapper
      Parameters:
      target - The target of the request - either a URI or a name.
      baseRequest - The original unwrapped request object.
      request - The request either as the Request object or a wrapper of that request. The HttpConnection.getCurrentConnection().getHttpChannel().getRequest() method can be used access the Request object if required.
      response - The response as the Response object or a wrapper of that request. The HttpConnection.getCurrentConnection().getHttpChannel().getResponse() method can be used access the Response object if required.
      Throws:
      IOException - if unable to handle the request or response processing
      javax.servlet.ServletException - if unable to handle the request or response due to underlying servlet issue

    • isAcceptRanges

      public boolean isAcceptRanges()
      Returns:
      If true, range requests and responses are supported

    • isDirAllowed

      public boolean isDirAllowed()
      Returns:
      If true, directory listings are returned if no welcome file is found. Else 403 Forbidden.

    • isDirectoriesListed

      public boolean isDirectoriesListed()
      Get the directory option.
      Returns:
      true if directories are listed.

    • isEtags

      public boolean isEtags()
      Returns:
      True if ETag processing is done

    • isGzip

      @Deprecated public boolean isGzip()
      Deprecated.
      Returns:
      If set to true, then static content will be served as gzip content encoded if a matching resource is found ending with ".gz"

    • getPrecompressedFormats

      public CompressedContentFormat[] getPrecompressedFormats()
      Returns:
      Precompressed resources formats that can be used to serve compressed variant of resources.

    • isPathInfoOnly

      public boolean isPathInfoOnly()
      Returns:
      true, only the path info will be applied to the resourceBase

    • isRedirectWelcome

      public boolean isRedirectWelcome()
      Returns:
      If true, welcome files are redirected rather than forwarded to.

    • setAcceptRanges

      public void setAcceptRanges(boolean acceptRanges)
      Parameters:
      acceptRanges - If true, range requests and responses are supported

    • setBaseResource

      public void setBaseResource(Resource base)
      Parameters:
      base - The resourceBase to server content from. If null the context resource base is used.

    • setCacheControl

      public void setCacheControl(String cacheControl)
      Parameters:
      cacheControl - the cacheControl header to set on all static content.

    • setDirAllowed

      public void setDirAllowed(boolean dirAllowed)
      Parameters:
      dirAllowed - If true, directory listings are returned if no welcome file is found. Else 403 Forbidden.

    • setDirectoriesListed

      public void setDirectoriesListed(boolean directory)
      Set the directory.
      Parameters:
      directory - true if directories are listed.

    • setEtags

      public void setEtags(boolean etags)
      Parameters:
      etags - True if ETag processing is done

    • setGzip

      @Deprecated public void setGzip(boolean gzip)
      Deprecated.
      Parameters:
      gzip - If set to true, then static content will be served as gzip content encoded if a matching resource is found ending with ".gz"

    • setGzipEquivalentFileExtensions

      public void setGzipEquivalentFileExtensions(List<String> gzipEquivalentFileExtensions)
      Parameters:
      gzipEquivalentFileExtensions - file extensions that signify that a file is gzip compressed. Eg ".svgz"

    • setPrecompressedFormats

      public void setPrecompressedFormats(CompressedContentFormat[] precompressedFormats)
      Parameters:
      precompressedFormats - The list of precompresed formats to serve in encoded format if matching resource found. For example serve gzip encoded file if ".gz" suffixed resource is found.

    • setMimeTypes

      public void setMimeTypes(MimeTypes mimeTypes)

    • setMinAsyncContentLength

      @Deprecated public void setMinAsyncContentLength(int minAsyncContentLength)
      Deprecated.
      Set the minimum content length for async handling.
      Parameters:
      minAsyncContentLength - The minimum size in bytes of the content before asynchronous handling is used, or -1 for no async handling or 0 for using ServletResponse.getBufferSize() as the minimum length.

    • setMinMemoryMappedContentLength

      @Deprecated public void setMinMemoryMappedContentLength(int minMemoryMappedFileSize)
      Deprecated.
      Set minimum memory mapped file content length.
      Parameters:
      minMemoryMappedFileSize - the minimum size in bytes of a file resource that will be served using a memory mapped buffer, or -1 for no memory mapped buffers.

    • setPathInfoOnly

      public void setPathInfoOnly(boolean pathInfoOnly)
      Parameters:
      pathInfoOnly - true, only the path info will be applied to the resourceBase

    • setRedirectWelcome

      public void setRedirectWelcome(boolean redirectWelcome)
      Parameters:
      redirectWelcome - If true, welcome files are redirected rather than forwarded to. redirection is always used if the ResourceHandler is not scoped by a ContextHandler

    • setResourceBase

      public void setResourceBase(String resourceBase)
      Parameters:
      resourceBase - The base resource as a string.

    • setStylesheet

      public void setStylesheet(String stylesheet)
      Parameters:
      stylesheet - The location of the stylesheet to be used as a String.

    • setWelcomeFiles

      public void setWelcomeFiles(String[] welcomeFiles)