1 /*

     2  * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 package java.net.http.internal.hpack;

    26 

    27 import java.nio.ByteBuffer;

    28 

    29 final class LiteralWithIndexingWriter extends IndexNameValueWriter {

    30 

    31     private boolean tableUpdated;

    32 

    33     private CharSequence name;

    34     private CharSequence value;

    35     private int index;

    36 

    37     LiteralWithIndexingWriter() {

    38         super(0b0100_0000, 6);

    39     }

    40 

    41     @Override

    42     LiteralWithIndexingWriter index(int index) {

    43         super.index(index);

    44         this.index = index;

    45         return this;

    46     }

    47 

    48     @Override

    49     LiteralWithIndexingWriter name(CharSequence name, boolean useHuffman) {

    50         super.name(name, useHuffman);

    51         this.name = name;

    52         return this;

    53     }

    54 

    55     @Override

    56     LiteralWithIndexingWriter value(CharSequence value, boolean useHuffman) {

    57         super.value(value, useHuffman);

    58         this.value = value;

    59         return this;

    60     }

    61 

    62     @Override

    63     public boolean write(HeaderTable table, ByteBuffer destination) {

    64         if (!tableUpdated) {

    65             CharSequence n;

    66             if (indexedRepresentation) {

    67                 n = table.get(index).name;

    68             } else {

    69                 n = name;

    70             }

    71             table.put(n, value);

    72             tableUpdated = true;

    73         }

    74         return super.write(table, destination);

    75     }

    76 

    77     @Override

    78     public IndexNameValueWriter reset() {

    79         tableUpdated = false;

    80         name = null;

    81         value = null;

    82         index = -1;

    83         return super.reset();

    84     }

    85 }