| package org.apache.maven.doxia.module.twiki.parser; |
| |
| /* |
| * 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.util.Arrays; |
| |
| import org.apache.maven.doxia.sink.Sink; |
| |
| /** |
| * Generic Block for the Block that have child blocks. |
| * |
| * @author Juan F. Codagnone |
| * @version $Id$ |
| */ |
| abstract class AbstractFatherBlock |
| implements Block |
| { |
| /** |
| * @see AbstractFatherBlock#AbstractFatherBlock(Block[]) |
| */ |
| private final Block[] childBlocks; |
| |
| /** |
| * method called before traversing the childs |
| * |
| * @param sink a sink to fill |
| */ |
| abstract void before( Sink sink ); |
| |
| /** |
| * method called after traversing the childs |
| * |
| * @param sink a sink to fill |
| */ |
| abstract void after( Sink sink ); |
| |
| /** |
| * Creates the AbstractFatherBlock. |
| * |
| * @param childBlocks child blocks |
| */ |
| AbstractFatherBlock( final Block[] childBlocks ) |
| { |
| if ( childBlocks == null ) |
| { |
| throw new IllegalArgumentException( "argument can't be null" ); |
| } |
| |
| for ( int i = 0; i < childBlocks.length; i++ ) |
| { |
| if ( childBlocks[i] == null ) |
| { |
| throw new IllegalArgumentException( "bucket " + i + " can't be null" ); |
| } |
| } |
| this.childBlocks = childBlocks; |
| } |
| |
| /** {@inheritDoc} */ |
| public final void traverse( final Sink sink ) |
| { |
| before( sink ); |
| for ( int i = 0; i < childBlocks.length; i++ ) |
| { |
| Block block = childBlocks[i]; |
| |
| block.traverse( sink ); |
| } |
| after( sink ); |
| } |
| |
| /** |
| * Returns the childBlocks. |
| * |
| * @return <code>Block[]</code> with the childBlocks. |
| */ |
| public final Block[] getBlocks() |
| { |
| return childBlocks; |
| } |
| |
| /** {@inheritDoc}*/ |
| public boolean equals( final Object obj ) |
| { |
| boolean ret = false; |
| |
| if ( obj == this ) |
| { |
| ret = true; |
| } |
| else if ( obj == null ) |
| { |
| ret = false; |
| } |
| else if ( obj.getClass().equals( this.getClass() ) ) |
| { |
| if ( obj instanceof AbstractFatherBlock ) |
| { |
| final AbstractFatherBlock a = (AbstractFatherBlock) obj; |
| ret = Arrays.equals( a.childBlocks, this.childBlocks ); |
| } |
| } |
| |
| return ret; |
| } |
| |
| /** {@inheritDoc}*/ |
| public int hashCode() |
| { |
| int result = 1; |
| if ( childBlocks != null ) |
| { |
| for ( int i = 0; i < childBlocks.length; i++ ) |
| { |
| result += childBlocks[i].hashCode(); |
| } |
| } |
| |
| return result; |
| } |
| } |