| package org.apache.maven.doxia.sink.impl; |
| |
| /* |
| * 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. |
| */ |
| |
| import java.lang.reflect.InvocationHandler; |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| import java.lang.reflect.Proxy; |
| |
| import java.util.List; |
| |
| import org.apache.maven.doxia.sink.Sink; |
| |
| /** |
| * May be used to invoke the same method on a List of Sinks. |
| * |
| * @author <a href="mailto:trygvis@inamo.no">Trygve Laugstøl</a> |
| * @version $Id$ |
| */ |
| public class PipelineSink |
| implements InvocationHandler |
| { |
| private List<Sink> pipeline; |
| |
| /** |
| * Constructs a PipelineSink for a given List of Sinks. |
| * |
| * @param pipeline A List of Sinks. |
| */ |
| public PipelineSink( List<Sink> pipeline ) |
| { |
| this.pipeline = pipeline; |
| } |
| |
| /** |
| * Add a Sink to the List of Sinks. |
| * |
| * @param sink the Sink to add. |
| */ |
| public void addSink( Sink sink ) |
| { |
| pipeline.add( sink ); |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * Invoke a Method on this PipelineSink. |
| * |
| * @throws IllegalAccessException if any. |
| * @throws InvocationTargetException if any. |
| */ |
| public Object invoke( Object proxy, Method method, Object[] args ) |
| throws IllegalAccessException, InvocationTargetException |
| { |
| for ( Sink sink : pipeline ) |
| { |
| method.invoke( sink, args ); |
| } |
| |
| return null; |
| } |
| |
| /** |
| * Returns an instance of a PipelineSink as a Sink. |
| * |
| * @param pipeline A List of Sinks. |
| * @return a {@link org.apache.maven.doxia.sink.Sink} object. |
| */ |
| public static Sink newInstance( List<Sink> pipeline ) |
| { |
| return (Sink) Proxy.newProxyInstance( PipelineSink.class.getClassLoader(), |
| new Class<?>[]{Sink.class}, |
| new PipelineSink( pipeline ) ); |
| } |
| } |