/*
 * Copyright 2005 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 org.wamblee.crawler.kiss.guide;

import java.io.PrintStream;


/**
 * Print visitor for pretty printing the TV guide. 
 */
public class PrintVisitor extends AbstractVisitor {
    
    /**
     * Stream to print the guide on. 
     */
    private PrintStream _stream; 
    
    /**
     * Constructs the print visitor. 
     * @param aStream Stream to print on. 
     */
    public PrintVisitor(PrintStream aStream) { 
        _stream = aStream;
    }

    /* (non-Javadoc)
     * @see org.wamblee.crawler.kiss.Visitor#visitProgram(org.wamblee.crawler.kiss.Program)
     */
    public void visitProgram(Program aProgram) {
        _stream.println("  " + aProgram.toString());   
    }
    
    /* (non-Javadoc)
     * @see org.wamblee.crawler.kiss.AbstractVisitor#visitChannel(org.wamblee.crawler.kiss.Channel)
     */
    @Override
    public void visitChannel(Channel aChannel) {
        _stream.println(aChannel.getName());
        super.visitChannel(aChannel);
    }
}