org.eclipse.jetty.http.HttpHeaderValue Maven / Gradle / Ivy
//
// ========================================================================
// Copyright (c) 1995-2018 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 java.nio.ByteBuffer;
import java.util.EnumSet;
import org.eclipse.jetty.util.ArrayTrie;
import org.eclipse.jetty.util.BufferUtil;
import org.eclipse.jetty.util.Trie;
/**
*
*/
public enum HttpHeaderValue
{
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"),
UNKNOWN("::UNKNOWN::");
/* ------------------------------------------------------------ */
public final static Trie CACHE= new ArrayTrie();
static
{
for (HttpHeaderValue value : HttpHeaderValue.values())
if (value!=UNKNOWN)
CACHE.put(value.toString(),value);
}
private final String _string;
private final ByteBuffer _buffer;
/* ------------------------------------------------------------ */
HttpHeaderValue(String s)
{
_string=s;
_buffer=BufferUtil.toBuffer(s);
}
/* ------------------------------------------------------------ */
public ByteBuffer toBuffer()
{
return _buffer.asReadOnlyBuffer();
}
/* ------------------------------------------------------------ */
public boolean is(String s)
{
return _string.equalsIgnoreCase(s);
}
/* ------------------------------------------------------------ */
public String asString()
{
return _string;
}
/* ------------------------------------------------------------ */
@Override
public String toString()
{
return _string;
}
/* ------------------------------------------------------------ */
private static EnumSet __known =
EnumSet.of(HttpHeader.CONNECTION,
HttpHeader.TRANSFER_ENCODING,
HttpHeader.CONTENT_ENCODING);
/* ------------------------------------------------------------ */
public static boolean hasKnownValues(HttpHeader header)
{
if (header==null)
return false;
return __known.contains(header);
}
}