org.apache.mina.core.filterchain.IoFilterChainBuilder Maven / Gradle / Ivy
/**
* Copyright 2007-2015, Kaazing Corporation. All rights reserved.
*
* 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 org.apache.mina.core.filterchain;
import org.apache.mina.core.session.IoSession;
/**
* An interface that builds {@link IoFilterChain} in predefined way
* when {@link IoSession} is created. You can extract common filter chain
* modification logic to this interface. For example, to add a filter
* to the chain,
*
* public class MyFilterChainBuilder implements IoFilterChainBuilder {
* public void buildFilterChain( IoFilterChain chain ) throws Exception {
* chain.addLast( "myFilter", new MyFilter() );
* }
* }
*
*
* @author Apache MINA Project
*/
public interface IoFilterChainBuilder {
/**
* An implementation which does nothing.
*/
IoFilterChainBuilder NOOP = new IoFilterChainBuilder() {
public void buildFilterChain(IoFilterChain chain) throws Exception {
}
@Override
public String toString() {
return "NOOP";
}
};
/**
* Modifies the specified chain.
*/
void buildFilterChain(IoFilterChain chain) throws Exception;
}