Importing upstream Jetty jetty-9.2.1.v20140609

[gigi.git] / lib / jetty / org / eclipse / jetty / http / HttpHeaderValue.java

diff --git a/lib/jetty/org/eclipse/jetty/http/HttpHeaderValue.java b/lib/jetty/org/eclipse/jetty/http/HttpHeaderValue.java
new file mode 100644 (file)
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+++ b/lib/jetty/org/eclipse/jetty/http/HttpHeaderValue.java
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+//
+//  ========================================================================
+//  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 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<HttpHeaderValue> CACHE= new ArrayTrie<HttpHeaderValue>();
+    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<HttpHeader> __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);
+    }
+}