| /* |
| * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package sun.net.httpclient.hpack; |
| |
| import java.nio.ByteBuffer; |
| |
| abstract class IndexNameValueWriter implements BinaryRepresentationWriter { |
| |
| private final int pattern; |
| private final int prefix; |
| private final IntegerWriter intWriter = new IntegerWriter(); |
| private final StringWriter nameWriter = new StringWriter(); |
| private final StringWriter valueWriter = new StringWriter(); |
| |
| protected boolean indexedRepresentation; |
| |
| private static final int NEW = 0; |
| private static final int NAME_PART_WRITTEN = 1; |
| private static final int VALUE_WRITTEN = 2; |
| |
| private int state = NEW; |
| |
| protected IndexNameValueWriter(int pattern, int prefix) { |
| this.pattern = pattern; |
| this.prefix = prefix; |
| } |
| |
| IndexNameValueWriter index(int index) { |
| indexedRepresentation = true; |
| intWriter.configure(index, prefix, pattern); |
| return this; |
| } |
| |
| IndexNameValueWriter name(CharSequence name, boolean useHuffman) { |
| indexedRepresentation = false; |
| intWriter.configure(0, prefix, pattern); |
| nameWriter.configure(name, useHuffman); |
| return this; |
| } |
| |
| IndexNameValueWriter value(CharSequence value, boolean useHuffman) { |
| valueWriter.configure(value, useHuffman); |
| return this; |
| } |
| |
| @Override |
| public boolean write(HeaderTable table, ByteBuffer destination) { |
| if (state < NAME_PART_WRITTEN) { |
| if (indexedRepresentation) { |
| if (!intWriter.write(destination)) { |
| return false; |
| } |
| } else { |
| if (!intWriter.write(destination) || !nameWriter.write(destination)) { |
| return false; |
| } |
| } |
| state = NAME_PART_WRITTEN; |
| } |
| if (state < VALUE_WRITTEN) { |
| if (!valueWriter.write(destination)) { |
| return false; |
| } |
| state = VALUE_WRITTEN; |
| } |
| return state == VALUE_WRITTEN; |
| } |
| |
| @Override |
| public IndexNameValueWriter reset() { |
| intWriter.reset(); |
| if (!indexedRepresentation) { |
| nameWriter.reset(); |
| } |
| valueWriter.reset(); |
| state = NEW; |
| return this; |
| } |
| } |