001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *   http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.eclipse.aether.spi.connector.transport.http;
020
021import java.util.regex.Pattern;
022
023/**
024 * Some shared HTTP constants.
025 *
026 * @since 2.0.0
027 */
028public final class HttpConstants {
029    private HttpConstants() {}
030
031    public static final int MULTIPLE_CHOICES = 300;
032
033    public static final int NOT_FOUND = 404;
034
035    public static final int PRECONDITION_FAILED = 412;
036
037    public static final String ACCEPT_ENCODING = "Accept-Encoding";
038
039    public static final String CACHE_CONTROL = "Cache-Control";
040
041    public static final String CONTENT_LENGTH = "Content-Length";
042
043    public static final String CONTENT_RANGE = "Content-Range";
044
045    public static final String ETAG = "ETag";
046
047    public static final String IF_UNMODIFIED_SINCE = "If-Unmodified-Since";
048
049    public static final String RANGE = "Range";
050
051    public static final String USER_AGENT = "User-Agent";
052
053    public static final String LAST_MODIFIED = "Last-Modified";
054
055    public static final Pattern CONTENT_RANGE_PATTERN =
056            Pattern.compile("\\s*bytes\\s+([0-9]+)\\s*-\\s*([0-9]+)\\s*/.*");
057}