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Java example source code file (AuthSchemeRegistry.java)
The AuthSchemeRegistry.java example source code/* * ==================================================================== * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ==================================================================== * * This software consists of voluntary contributions made by many * individuals on behalf of the Apache Software Foundation. For more * information on the Apache Software Foundation, please see * <http://www.apache.org/>. * */ package org.apache.http.auth; import java.util.ArrayList; import java.util.LinkedHashMap; import java.util.List; import java.util.Locale; import java.util.Map; import org.apache.http.annotation.GuardedBy; import org.apache.http.annotation.ThreadSafe; import org.apache.http.params.HttpParams; /** * Authentication scheme registry that can be used to obtain the corresponding * authentication scheme implementation for a given type of authorization challenge. * * @since 4.0 */ @ThreadSafe public final class AuthSchemeRegistry { @GuardedBy("this") private final Map<String,AuthSchemeFactory> registeredSchemes; public AuthSchemeRegistry() { super(); this.registeredSchemes = new LinkedHashMap<String,AuthSchemeFactory>(); } /** * Registers a {@link AuthSchemeFactory} with the given identifier. If a factory with the * given name already exists it will be overridden. This name is the same one used to * retrieve the {@link AuthScheme authentication scheme} from {@link #getAuthScheme}. * * <p> * Please note that custom authentication preferences, if used, need to be updated accordingly * for the new {@link AuthScheme authentication scheme} to take effect. * </p> * * @param name the identifier for this scheme * @param factory the {@link AuthSchemeFactory} class to register * * @see #getAuthScheme */ public synchronized void register( final String name, final AuthSchemeFactory factory) { if (name == null) { throw new IllegalArgumentException("Name may not be null"); } if (factory == null) { throw new IllegalArgumentException("Authentication scheme factory may not be null"); } registeredSchemes.put(name.toLowerCase(Locale.ENGLISH), factory); } /** * Unregisters the class implementing an {@link AuthScheme authentication scheme} with * the given name. * * @param name the identifier of the class to unregister */ public synchronized void unregister(final String name) { if (name == null) { throw new IllegalArgumentException("Name may not be null"); } registeredSchemes.remove(name.toLowerCase(Locale.ENGLISH)); } /** * Gets the {@link AuthScheme authentication scheme} with the given name. * * @param name the {@link AuthScheme authentication scheme} identifier * @param params the {@link HttpParams HTTP parameters} for the authentication * scheme. * * @return {@link AuthScheme authentication scheme} * * @throws IllegalStateException if a scheme with the given name cannot be found */ public synchronized AuthScheme getAuthScheme(final String name, final HttpParams params) throws IllegalStateException { if (name == null) { throw new IllegalArgumentException("Name may not be null"); } AuthSchemeFactory factory = registeredSchemes.get(name.toLowerCase(Locale.ENGLISH)); if (factory != null) { return factory.newInstance(params); } else { throw new IllegalStateException("Unsupported authentication scheme: " + name); } } /** * Obtains a list containing names of all registered {@link AuthScheme authentication * schemes} in their default order. * * @return list of registered scheme names */ public synchronized List<String> getSchemeNames() { return new ArrayList<String>(registeredSchemes.keySet()); } /** * Populates the internal collection of registered {@link AuthScheme authentication schemes} * with the content of the map passed as a parameter. * * @param map authentication schemes */ public synchronized void setItems(final Map<String, AuthSchemeFactory> map) { if (map == null) { return; } registeredSchemes.clear(); registeredSchemes.putAll(map); } } Other Java examples (source code examples)Here is a short list of links related to this Java AuthSchemeRegistry.java source code file: |
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