Wed, 31 Dec 2014 07:22:50 +0100
Correct previous dual key logic pending first delivery installment.
michael@0 | 1 | /* |
michael@0 | 2 | * ==================================================================== |
michael@0 | 3 | * Licensed to the Apache Software Foundation (ASF) under one |
michael@0 | 4 | * or more contributor license agreements. See the NOTICE file |
michael@0 | 5 | * distributed with this work for additional information |
michael@0 | 6 | * regarding copyright ownership. The ASF licenses this file |
michael@0 | 7 | * to you under the Apache License, Version 2.0 (the |
michael@0 | 8 | * "License"); you may not use this file except in compliance |
michael@0 | 9 | * with the License. You may obtain a copy of the License at |
michael@0 | 10 | * |
michael@0 | 11 | * http://www.apache.org/licenses/LICENSE-2.0 |
michael@0 | 12 | * |
michael@0 | 13 | * Unless required by applicable law or agreed to in writing, |
michael@0 | 14 | * software distributed under the License is distributed on an |
michael@0 | 15 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
michael@0 | 16 | * KIND, either express or implied. See the License for the |
michael@0 | 17 | * specific language governing permissions and limitations |
michael@0 | 18 | * under the License. |
michael@0 | 19 | * ==================================================================== |
michael@0 | 20 | * |
michael@0 | 21 | * This software consists of voluntary contributions made by many |
michael@0 | 22 | * individuals on behalf of the Apache Software Foundation. For more |
michael@0 | 23 | * information on the Apache Software Foundation, please see |
michael@0 | 24 | * <http://www.apache.org/>. |
michael@0 | 25 | * |
michael@0 | 26 | */ |
michael@0 | 27 | package ch.boye.httpclientandroidlib.conn.scheme; |
michael@0 | 28 | |
michael@0 | 29 | import java.util.ArrayList; |
michael@0 | 30 | import java.util.List; |
michael@0 | 31 | import java.util.Map; |
michael@0 | 32 | import java.util.concurrent.ConcurrentHashMap; |
michael@0 | 33 | |
michael@0 | 34 | import ch.boye.httpclientandroidlib.annotation.ThreadSafe; |
michael@0 | 35 | |
michael@0 | 36 | import ch.boye.httpclientandroidlib.HttpHost; |
michael@0 | 37 | |
michael@0 | 38 | /** |
michael@0 | 39 | * A set of supported protocol {@link Scheme}s. |
michael@0 | 40 | * Schemes are identified by lowercase names. |
michael@0 | 41 | * |
michael@0 | 42 | * @since 4.0 |
michael@0 | 43 | */ |
michael@0 | 44 | @ThreadSafe |
michael@0 | 45 | public final class SchemeRegistry { |
michael@0 | 46 | |
michael@0 | 47 | /** The available schemes in this registry. */ |
michael@0 | 48 | private final ConcurrentHashMap<String,Scheme> registeredSchemes; |
michael@0 | 49 | |
michael@0 | 50 | /** |
michael@0 | 51 | * Creates a new, empty scheme registry. |
michael@0 | 52 | */ |
michael@0 | 53 | public SchemeRegistry() { |
michael@0 | 54 | super(); |
michael@0 | 55 | registeredSchemes = new ConcurrentHashMap<String,Scheme>(); |
michael@0 | 56 | } |
michael@0 | 57 | |
michael@0 | 58 | /** |
michael@0 | 59 | * Obtains a scheme by name. |
michael@0 | 60 | * |
michael@0 | 61 | * @param name the name of the scheme to look up (in lowercase) |
michael@0 | 62 | * |
michael@0 | 63 | * @return the scheme, never <code>null</code> |
michael@0 | 64 | * |
michael@0 | 65 | * @throws IllegalStateException |
michael@0 | 66 | * if the scheme with the given name is not registered |
michael@0 | 67 | */ |
michael@0 | 68 | public final Scheme getScheme(String name) { |
michael@0 | 69 | Scheme found = get(name); |
michael@0 | 70 | if (found == null) { |
michael@0 | 71 | throw new IllegalStateException |
michael@0 | 72 | ("Scheme '"+name+"' not registered."); |
michael@0 | 73 | } |
michael@0 | 74 | return found; |
michael@0 | 75 | } |
michael@0 | 76 | |
michael@0 | 77 | /** |
michael@0 | 78 | * Obtains the scheme for a host. |
michael@0 | 79 | * Convenience method for <code>getScheme(host.getSchemeName())</pre> |
michael@0 | 80 | * |
michael@0 | 81 | * @param host the host for which to obtain the scheme |
michael@0 | 82 | * |
michael@0 | 83 | * @return the scheme for the given host, never <code>null</code> |
michael@0 | 84 | * |
michael@0 | 85 | * @throws IllegalStateException |
michael@0 | 86 | * if a scheme with the respective name is not registered |
michael@0 | 87 | */ |
michael@0 | 88 | public final Scheme getScheme(HttpHost host) { |
michael@0 | 89 | if (host == null) { |
michael@0 | 90 | throw new IllegalArgumentException("Host must not be null."); |
michael@0 | 91 | } |
michael@0 | 92 | return getScheme(host.getSchemeName()); |
michael@0 | 93 | } |
michael@0 | 94 | |
michael@0 | 95 | /** |
michael@0 | 96 | * Obtains a scheme by name, if registered. |
michael@0 | 97 | * |
michael@0 | 98 | * @param name the name of the scheme to look up (in lowercase) |
michael@0 | 99 | * |
michael@0 | 100 | * @return the scheme, or |
michael@0 | 101 | * <code>null</code> if there is none by this name |
michael@0 | 102 | */ |
michael@0 | 103 | public final Scheme get(String name) { |
michael@0 | 104 | if (name == null) |
michael@0 | 105 | throw new IllegalArgumentException("Name must not be null."); |
michael@0 | 106 | |
michael@0 | 107 | // leave it to the caller to use the correct name - all lowercase |
michael@0 | 108 | //name = name.toLowerCase(); |
michael@0 | 109 | Scheme found = registeredSchemes.get(name); |
michael@0 | 110 | return found; |
michael@0 | 111 | } |
michael@0 | 112 | |
michael@0 | 113 | /** |
michael@0 | 114 | * Registers a scheme. |
michael@0 | 115 | * The scheme can later be retrieved by its name |
michael@0 | 116 | * using {@link #getScheme(String) getScheme} or {@link #get get}. |
michael@0 | 117 | * |
michael@0 | 118 | * @param sch the scheme to register |
michael@0 | 119 | * |
michael@0 | 120 | * @return the scheme previously registered with that name, or |
michael@0 | 121 | * <code>null</code> if none was registered |
michael@0 | 122 | */ |
michael@0 | 123 | public final Scheme register(Scheme sch) { |
michael@0 | 124 | if (sch == null) |
michael@0 | 125 | throw new IllegalArgumentException("Scheme must not be null."); |
michael@0 | 126 | |
michael@0 | 127 | Scheme old = registeredSchemes.put(sch.getName(), sch); |
michael@0 | 128 | return old; |
michael@0 | 129 | } |
michael@0 | 130 | |
michael@0 | 131 | /** |
michael@0 | 132 | * Unregisters a scheme. |
michael@0 | 133 | * |
michael@0 | 134 | * @param name the name of the scheme to unregister (in lowercase) |
michael@0 | 135 | * |
michael@0 | 136 | * @return the unregistered scheme, or |
michael@0 | 137 | * <code>null</code> if there was none |
michael@0 | 138 | */ |
michael@0 | 139 | public final Scheme unregister(String name) { |
michael@0 | 140 | if (name == null) |
michael@0 | 141 | throw new IllegalArgumentException("Name must not be null."); |
michael@0 | 142 | |
michael@0 | 143 | // leave it to the caller to use the correct name - all lowercase |
michael@0 | 144 | //name = name.toLowerCase(); |
michael@0 | 145 | Scheme gone = registeredSchemes.remove(name); |
michael@0 | 146 | return gone; |
michael@0 | 147 | } |
michael@0 | 148 | |
michael@0 | 149 | /** |
michael@0 | 150 | * Obtains the names of the registered schemes. |
michael@0 | 151 | * |
michael@0 | 152 | * @return List containing registered scheme names. |
michael@0 | 153 | */ |
michael@0 | 154 | public final List<String> getSchemeNames() { |
michael@0 | 155 | return new ArrayList<String>(registeredSchemes.keySet()); |
michael@0 | 156 | } |
michael@0 | 157 | |
michael@0 | 158 | /** |
michael@0 | 159 | * Populates the internal collection of registered {@link Scheme protocol schemes} |
michael@0 | 160 | * with the content of the map passed as a parameter. |
michael@0 | 161 | * |
michael@0 | 162 | * @param map protocol schemes |
michael@0 | 163 | */ |
michael@0 | 164 | public void setItems(final Map<String, Scheme> map) { |
michael@0 | 165 | if (map == null) { |
michael@0 | 166 | return; |
michael@0 | 167 | } |
michael@0 | 168 | registeredSchemes.clear(); |
michael@0 | 169 | registeredSchemes.putAll(map); |
michael@0 | 170 | } |
michael@0 | 171 | |
michael@0 | 172 | } |
michael@0 | 173 |