| /* |
| * Copyright (c) 2018, 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 jdk.internal.net.http.common; |
| |
| import java.net.http.HttpHeaders; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.TreeMap; |
| import static jdk.internal.net.http.common.Utils.ACCEPT_ALL; |
| |
| /** A mutable builder for collecting and building HTTP headers. */ |
| public class HttpHeadersBuilder { |
| |
| private final TreeMap<String, List<String>> headersMap; |
| |
| public HttpHeadersBuilder() { |
| headersMap = new TreeMap<>(String.CASE_INSENSITIVE_ORDER); |
| } |
| |
| public HttpHeadersBuilder structuralCopy() { |
| HttpHeadersBuilder builder = new HttpHeadersBuilder(); |
| for (Map.Entry<String, List<String>> entry : headersMap.entrySet()) { |
| List<String> valuesCopy = new ArrayList<>(entry.getValue()); |
| builder.headersMap.put(entry.getKey(), valuesCopy); |
| } |
| return builder; |
| } |
| |
| public void addHeader(String name, String value) { |
| headersMap.computeIfAbsent(name, k -> new ArrayList<>(1)) |
| .add(value); |
| } |
| |
| public void setHeader(String name, String value) { |
| // headers typically have one value |
| List<String> values = new ArrayList<>(1); |
| values.add(value); |
| headersMap.put(name, values); |
| } |
| |
| public void clear() { |
| headersMap.clear(); |
| } |
| |
| public Map<String, List<String>> map() { |
| return headersMap; |
| } |
| |
| public HttpHeaders build() { |
| return HttpHeaders.of(headersMap, ACCEPT_ALL); |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder sb = new StringBuilder(); |
| sb.append(super.toString()).append(" { "); |
| sb.append(map()); |
| sb.append(" }"); |
| return sb.toString(); |
| } |
| } |