1/* 2 * Copyright (c) 2015, 2016, 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 */ 25package jdk.incubator.http.internal.hpack; 26 27import java.nio.ByteBuffer; 28 29final class SizeUpdateWriter implements BinaryRepresentationWriter { 30 31 private final IntegerWriter intWriter = new IntegerWriter(); 32 private int maxSize; 33 private boolean tableUpdated; 34 35 SizeUpdateWriter() { } 36 37 SizeUpdateWriter maxHeaderTableSize(int size) { 38 intWriter.configure(size, 5, 0b0010_0000); 39 this.maxSize = size; 40 return this; 41 } 42 43 @Override 44 public boolean write(HeaderTable table, ByteBuffer destination) { 45 if (!tableUpdated) { 46 table.setMaxSize(maxSize); 47 tableUpdated = true; 48 } 49 return intWriter.write(destination); 50 } 51 52 @Override 53 public BinaryRepresentationWriter reset() { 54 intWriter.reset(); 55 maxSize = -1; 56 tableUpdated = false; 57 return this; 58 } 59} 60