org.apache.sshd.common.NamedFactory Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
/*
* 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.
*/
package org.apache.sshd.common;
import java.util.Collection;
import java.util.List;
import java.util.function.Function;
import java.util.stream.Collectors;
/**
* A named factory is a factory identified by a name. Such names are used mainly in the algorithm negotiation at the
* beginning of the SSH connection.
*
* @param The create object instance type
* @author Apache MINA SSHD Project
*/
public interface NamedFactory extends Factory, NamedResource {
/**
* Create an instance of the specified name by looking up the needed factory in the list.
*
* @param factories list of available factories
* @param name the factory name to use
* @param type of object to create
* @return a newly created object or {@code null} if the factory is not in the list
*/
static T create(Collection> factories, String name) {
NamedFactory f = NamedResource.findByName(name, String.CASE_INSENSITIVE_ORDER, factories);
if (f != null) {
return f.create();
} else {
return null;
}
}
static List setUpTransformedFactories(
boolean ignoreUnsupported, Collection preferred, Function xform) {
return preferred.stream()
.filter(f -> ignoreUnsupported || f.isSupported())
.map(xform)
.collect(Collectors.toList());
}
static List setUpBuiltinFactories(
boolean ignoreUnsupported, Collection preferred) {
return preferred.stream()
.filter(f -> ignoreUnsupported || f.isSupported())
.collect(Collectors.toList());
}
}