ratpack.handling.internal.ChainBuilders Maven / Gradle / Ivy
/*
* Copyright 2013 the original author or authors.
*
* Licensed 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 ratpack.handling.internal;
import com.google.common.collect.Lists;
import ratpack.func.Action;
import ratpack.func.Function;
import ratpack.handling.Handler;
import ratpack.handling.Handlers;
import java.util.List;
public class ChainBuilders {
public static Handler build(final Function, ? extends T> toChainBuilder, final Action chainBuilderAction) throws Exception {
List handlers = Lists.newLinkedList();
T chainBuilder = toChainBuilder.apply(handlers);
chainBuilderAction.execute(chainBuilder);
return Handlers.chain(handlers.toArray(new Handler[handlers.size()]));
}
}