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/*
* $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk/module-client/src/main/java/org/apache/http/cookie/CookieSpecRegistry.java $
* $Revision: 652950 $
* $Date: 2008-05-02 16:49:48 -0700 (Fri, 02 May 2008) $
*
* ====================================================================
* 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.cookie;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import org.apache.http.params.HttpParams;
/**
* Cookie specification registry that can be used to obtain the corresponding
* cookie specification implementation for a given type of type or version of
* cookie.
*
* @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a>
* @author <a href="mailto:mbowler@GargoyleSoftware.com">Mike Bowler</a>
*
* @since 4.0
*/
public final class CookieSpecRegistry {
private final Map<String,CookieSpecFactory> registeredSpecs;
public CookieSpecRegistry() {
super();
this.registeredSpecs = new LinkedHashMap<String,CookieSpecFactory>();
}
/**
* Registers a {@link CookieSpecFactory} with the given identifier.
* If a specification with the given name already exists it will be overridden.
* This nameis the same one used to retrieve the {@link CookieSpecFactory}
* from {@link #getCookieSpec(String)}.
*
* @param name the identifier for this specification
* @param factory the {@link CookieSpecFactory} class to register
*
* @see #getCookieSpec(String)
*/
public synchronized void register(final String name, final CookieSpecFactory factory) {
if (name == null) {
throw new IllegalArgumentException("Name may not be null");
}
if (factory == null) {
throw new IllegalArgumentException("Cookie spec factory may not be null");
}
registeredSpecs.put(name.toLowerCase(Locale.ENGLISH), factory);
}
/**
* Unregisters the {@link CookieSpecFactory} with the given ID.
*
* @param id the identifier of the {@link CookieSpec cookie specification} to unregister
*/
public synchronized void unregister(final String id) {
if (id == null) {
throw new IllegalArgumentException("Id may not be null");
}
registeredSpecs.remove(id.toLowerCase(Locale.ENGLISH));
}
/**
* Gets the {@link CookieSpec cookie specification} with the given ID.
*
* @param name the {@link CookieSpec cookie specification} identifier
* @param params the {@link HttpParams HTTP parameters} for the cookie
* specification.
*
* @return {@link CookieSpec cookie specification}
*
* @throws IllegalStateException if a policy with the given name cannot be found
*/
public synchronized CookieSpec getCookieSpec(final String name, final HttpParams params)
throws IllegalStateException {
if (name == null) {
throw new IllegalArgumentException("Name may not be null");
}
CookieSpecFactory factory = registeredSpecs.get(name.toLowerCase(Locale.ENGLISH));
if (factory != null) {
return factory.newInstance(params);
} else {
throw new IllegalStateException("Unsupported cookie spec: " + name);
}
}
/**
* Gets the {@link CookieSpec cookie specification} with the given name.
*
* @param name the {@link CookieSpec cookie specification} identifier
*
* @return {@link CookieSpec cookie specification}
*
* @throws IllegalStateException if a policy with the given name cannot be found
*/
public synchronized CookieSpec getCookieSpec(final String name)
throws IllegalStateException {
return getCookieSpec(name, null);
}
/**
* Obtains a list containing names of all registered {@link CookieSpec cookie
* specs} in their default order.
*
* Note that the DEFAULT policy (if present) is likely to be the same
* as one of the other policies, but does not have to be.
*
* @return list of registered cookie spec names
*/
public synchronized List<String> getSpecNames(){
return new ArrayList<String>(registeredSpecs.keySet());
}
/**
* Populates the internal collection of registered {@link CookieSpec cookie
* specs} with the content of the map passed as a parameter.
*
* @param map cookie specs
*/
public synchronized void setItems(final Map<String, CookieSpecFactory> map) {
if (map == null) {
return;
}
registeredSpecs.clear();
registeredSpecs.putAll(map);
}
}
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