io.logspace.agent.shaded.apache.http.conn.scheme.SchemeRegistry Maven / Gradle / Ivy
/*
* ====================================================================
* 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
* registeredSchemes;
/**
* Creates a new, empty scheme registry.
*/
public SchemeRegistry() {
super();
registeredSchemes = new ConcurrentHashMap();
}
/**
* Obtains a scheme by name.
*
* @param name the name of the scheme to look up (in lowercase)
*
* @return the scheme, never null
*
* @throws IllegalStateException
* if the scheme with the given name is not registered
*/
public final Scheme getScheme(final String name) {
final Scheme found = get(name);
if (found == null) {
throw new IllegalStateException
("Scheme '"+name+"' not registered.");
}
return found;
}
/**
* Obtains the scheme for a host.
* Convenience method for getScheme(host.getSchemeName()) null
*
* @throws IllegalStateException
* if a scheme with the respective name is not registered
*/
public final Scheme getScheme(final HttpHost host) {
Args.notNull(host, "Host");
return getScheme(host.getSchemeName());
}
/**
* Obtains a scheme by name, if registered.
*
* @param name the name of the scheme to look up (in lowercase)
*
* @return the scheme, or
* null if there is none by this name
*/
public final Scheme get(final String name) {
Args.notNull(name, "Scheme name");
// leave it to the caller to use the correct name - all lowercase
//name = name.toLowerCase(Locale.ENGLISH);
final Scheme found = registeredSchemes.get(name);
return found;
}
/**
* Registers a scheme.
* The scheme can later be retrieved by its name
* using {@link #getScheme(String) getScheme} or {@link #get get}.
*
* @param sch the scheme to register
*
* @return the scheme previously registered with that name, or
* null if none was registered
*/
public final Scheme register(final Scheme sch) {
Args.notNull(sch, "Scheme");
final Scheme old = registeredSchemes.put(sch.getName(), sch);
return old;
}
/**
* Unregisters a scheme.
*
* @param name the name of the scheme to unregister (in lowercase)
*
* @return the unregistered scheme, or
* null if there was none
*/
public final Scheme unregister(final String name) {
Args.notNull(name, "Scheme name");
// leave it to the caller to use the correct name - all lowercase
//name = name.toLowerCase(Locale.ENGLISH);
final Scheme gone = registeredSchemes.remove(name);
return gone;
}
/**
* Obtains the names of the registered schemes.
*
* @return List containing registered scheme names.
*/
public final List