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 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
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 * KIND, either express or implied.  See the License for the
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package org.apache.http.cookie;

import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

import org.apache.http.HttpRequest;
import org.apache.http.annotation.Contract;
import org.apache.http.annotation.ThreadingBehavior;
import org.apache.http.config.Lookup;
import org.apache.http.params.HttpParams;
import org.apache.http.protocol.ExecutionContext;
import org.apache.http.protocol.HttpContext;
import org.apache.http.util.Args;

Cookie specification registry that can be used to obtain the corresponding
cookie specification implementation for a given type of type or version of
cookie.
Since:
4.0
Deprecated:
(4.3) use Registry./**
 * Cookie specification registry that can be used to obtain the corresponding
 * cookie specification implementation for a given type of type or version of
 * cookie.
 *
 * @since 4.0
 *
 * @deprecated (4.3) use {@link org.apache.http.config.Registry}.
 */
@Contract(threading = ThreadingBehavior.SAFE)
@Deprecated
public final class CookieSpecRegistry implements Lookup<CookieSpecProvider> {

    private final ConcurrentHashMap<String,CookieSpecFactory> registeredSpecs;

    public CookieSpecRegistry() {
        super();
        this.registeredSpecs = new ConcurrentHashMap<String,CookieSpecFactory>();
    }

    
Registers a 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 CookieSpecFactory from getCookieSpec(String). 
Params:
name – the identifier for this specification
factory – the CookieSpecFactory class to register
See Also:
getCookieSpec(String)/**
     * 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 void register(final String name, final CookieSpecFactory factory) {
         Args.notNull(name, "Name");
        Args.notNull(factory, "Cookie spec factory");
        registeredSpecs.put(name.toLowerCase(Locale.ENGLISH), factory);
    }

    
Unregisters the CookieSpecFactory with the given ID. 
Params:
id – the identifier of the cookie specification to unregister/**
     * Unregisters the {@link CookieSpecFactory} with the given ID.
     *
     * @param id the identifier of the {@link CookieSpec cookie specification} to unregister
     */
    public void unregister(final String id) {
         Args.notNull(id, "Id");
         registeredSpecs.remove(id.toLowerCase(Locale.ENGLISH));
    }

    
Gets the cookie specification with the given ID. 
Params:
name – the cookie specification identifier
params – the HTTP parameters for the cookie specification.
Throws:
IllegalStateException – if a policy with the given name cannot be found
Returns:
cookie specification/**
     * 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 CookieSpec getCookieSpec(final String name, final HttpParams params)
        throws IllegalStateException {

        Args.notNull(name, "Name");
        final CookieSpecFactory factory = registeredSpecs.get(name.toLowerCase(Locale.ENGLISH));
        if (factory != null) {
            return factory.newInstance(params);
        }
        throw new IllegalStateException("Unsupported cookie spec: " + name);
    }

    
Gets the cookie specification with the given name. 
Params:
name – the cookie specification identifier
Throws:
IllegalStateException – if a policy with the given name cannot be found
Returns:
cookie specification/**
     * 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 CookieSpec getCookieSpec(final String name)
        throws IllegalStateException {
        return getCookieSpec(name, null);
    }

    
Obtains a list containing the names of all registered cookie
specs. 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. 
Returns:
list of registered cookie spec names/**
     * Obtains a list containing the names of all registered {@link CookieSpec cookie
     * specs}.
     *
     * 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 List<String> getSpecNames(){
        return new ArrayList<String>(registeredSpecs.keySet());
    }

    
Populates the internal collection of registered cookie
specs with the content of the map passed as a parameter. 
Params:
map – cookie specs/**
     * 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 void setItems(final Map<String, CookieSpecFactory> map) {
        if (map == null) {
            return;
        }
        registeredSpecs.clear();
        registeredSpecs.putAll(map);
    }

    @Override
    public CookieSpecProvider lookup(final String name) {
        return new CookieSpecProvider() {

            @Override
            public CookieSpec create(final HttpContext context) {
                final HttpRequest request = (HttpRequest) context.getAttribute(
                        ExecutionContext.HTTP_REQUEST);
                return getCookieSpec(name, request.getParams());
            }

        };
    }

}