org.apache.tapestry5.services
Interface ResponseCompressionAnalyzer

All Known Implementing Classes:

ResponseCompressionAnalyzerImpl

@UsesConfiguration(value=java.lang.String.class)
public interface ResponseCompressionAnalyzer

Used to determine if the client supports GZIP compression of the response.

The configuration is an unordered list of content types that should not be compressed.

Since:

5.1.0.0

Method Summary

boolean	isCompressable(String contentType) Checks to see if the indicated content type is compressable.
boolean	isGZipSupported() Checks the Accept-Encoding request header for a "gzip" token.

Method Detail

isGZipSupported

boolean isGZipSupported()

Checks the Accept-Encoding request header for a "gzip" token.

Returns:

true if gzip is supported by client

isCompressable

boolean isCompressable(String contentType)

Checks to see if the indicated content type is compressable. Many formats are already compressed; pushing them through a GZip filter consumes cycles and makes them larger.

Contribute content type strings to the service's configuration to mark them as not compressable.

Parameters:

contentType - the mime type of the content, such as "text/html" or "image/jpeg".

Returns:

true if compression is worthwile