| // |
| // ======================================================================== |
| // Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd. |
| // ------------------------------------------------------------------------ |
| // All rights reserved. This program and the accompanying materials |
| // are made available under the terms of the Eclipse Public License v1.0 |
| // and Apache License v2.0 which accompanies this distribution. |
| // |
| // The Eclipse Public License is available at |
| // http://www.eclipse.org/legal/epl-v10.html |
| // |
| // The Apache License v2.0 is available at |
| // http://www.opensource.org/licenses/apache2.0.php |
| // |
| // You may elect to redistribute this code under either of these licenses. |
| // ======================================================================== |
| // |
| |
| package org.eclipse.jetty.http; |
| |
| import org.eclipse.jetty.io.Buffer; |
| import org.eclipse.jetty.io.BufferCache; |
| import org.eclipse.jetty.io.ByteArrayBuffer; |
| |
| /** |
| * Cached HTTP Header values. |
| * This class caches the conversion of common HTTP Header values to and from {@link ByteArrayBuffer} instances. |
| * The resource "/org/eclipse/jetty/useragents" is checked for a list of common user agents, so that repeated |
| * creation of strings for these agents can be avoided. |
| * |
| * |
| */ |
| public class HttpHeaderValues extends BufferCache |
| { |
| public final static String |
| CLOSE="close", |
| CHUNKED="chunked", |
| GZIP="gzip", |
| IDENTITY="identity", |
| KEEP_ALIVE="keep-alive", |
| CONTINUE="100-continue", |
| PROCESSING="102-processing", |
| TE="TE", |
| BYTES="bytes", |
| NO_CACHE="no-cache", |
| UPGRADE="Upgrade"; |
| |
| public final static int |
| CLOSE_ORDINAL=1, |
| CHUNKED_ORDINAL=2, |
| GZIP_ORDINAL=3, |
| IDENTITY_ORDINAL=4, |
| KEEP_ALIVE_ORDINAL=5, |
| CONTINUE_ORDINAL=6, |
| PROCESSING_ORDINAL=7, |
| TE_ORDINAL=8, |
| BYTES_ORDINAL=9, |
| NO_CACHE_ORDINAL=10, |
| UPGRADE_ORDINAL=11; |
| |
| public final static HttpHeaderValues CACHE= new HttpHeaderValues(); |
| |
| public final static Buffer |
| CLOSE_BUFFER=CACHE.add(CLOSE,CLOSE_ORDINAL), |
| CHUNKED_BUFFER=CACHE.add(CHUNKED,CHUNKED_ORDINAL), |
| GZIP_BUFFER=CACHE.add(GZIP,GZIP_ORDINAL), |
| IDENTITY_BUFFER=CACHE.add(IDENTITY,IDENTITY_ORDINAL), |
| KEEP_ALIVE_BUFFER=CACHE.add(KEEP_ALIVE,KEEP_ALIVE_ORDINAL), |
| CONTINUE_BUFFER=CACHE.add(CONTINUE, CONTINUE_ORDINAL), |
| PROCESSING_BUFFER=CACHE.add(PROCESSING, PROCESSING_ORDINAL), |
| TE_BUFFER=CACHE.add(TE,TE_ORDINAL), |
| BYTES_BUFFER=CACHE.add(BYTES,BYTES_ORDINAL), |
| NO_CACHE_BUFFER=CACHE.add(NO_CACHE,NO_CACHE_ORDINAL), |
| UPGRADE_BUFFER=CACHE.add(UPGRADE,UPGRADE_ORDINAL); |
| |
| |
| public static boolean hasKnownValues(int httpHeaderOrdinal) |
| { |
| switch(httpHeaderOrdinal) |
| { |
| case HttpHeaders.CONNECTION_ORDINAL: |
| case HttpHeaders.TRANSFER_ENCODING_ORDINAL: |
| case HttpHeaders.CONTENT_ENCODING_ORDINAL: |
| return true; |
| } |
| return false; |
| } |
| } |