001/* 002 * ==================================================================== 003 * Licensed to the Apache Software Foundation (ASF) under one 004 * or more contributor license agreements. See the NOTICE file 005 * distributed with this work for additional information 006 * regarding copyright ownership. The ASF licenses this file 007 * to you under the Apache License, Version 2.0 (the 008 * "License"); you may not use this file except in compliance 009 * with the License. You may obtain a copy of the License at 010 * 011 * http://www.apache.org/licenses/LICENSE-2.0 012 * 013 * Unless required by applicable law or agreed to in writing, 014 * software distributed under the License is distributed on an 015 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 016 * KIND, either express or implied. See the License for the 017 * specific language governing permissions and limitations 018 * under the License. 019 * ==================================================================== 020 * 021 * This software consists of voluntary contributions made by many 022 * individuals on behalf of the Apache Software Foundation. For more 023 * information on the Apache Software Foundation, please see 024 * <http://www.apache.org/>. 025 * 026 */ 027 028package org.apache.http.config; 029 030import java.util.HashMap; 031import java.util.Locale; 032import java.util.Map; 033 034import org.apache.http.util.Args; 035 036/** 037 * Builder for {@link Registry} instances. 038 * 039 * @since 4.3 040 */ 041public final class RegistryBuilder<I> { 042 043 private final Map<String, I> items; 044 045 public static <I> RegistryBuilder<I> create() { 046 return new RegistryBuilder<I>(); 047 } 048 049 RegistryBuilder() { 050 super(); 051 this.items = new HashMap<String, I>(); 052 } 053 054 public RegistryBuilder<I> register(final String id, final I item) { 055 Args.notEmpty(id, "ID"); 056 Args.notNull(item, "Item"); 057 items.put(id.toLowerCase(Locale.ROOT), item); 058 return this; 059 } 060 061 public Registry<I> build() { 062 return new Registry<I>(items); 063 } 064 065 @Override 066 public String toString() { 067 return items.toString(); 068 } 069 070}