/**
    * Copyright 2010-2012 The Kuali Foundation
    *
    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
    *
   * 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.kuali.common.util;
  
  import java.io.PrintStream;
  import java.util.List;
  
  import org.codehaus.plexus.util.cli.StreamConsumer;
  import org.kuali.common.util.ignore.Ignore;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  public class PrintlnStreamConsumer implements StreamConsumer {
  
  	private static final Logger logger = LoggerFactory.getLogger(PrintlnStreamConsumer.class);
  
  	PrintStream printStream;
  	long lineCount = 0;
  	long skipCount = 0;
  	List<Ignore> ignorers;
  	boolean enableIgnorers = true;
  
  	public PrintlnStreamConsumer() {
  		this(null);
  	}
  
  	public PrintlnStreamConsumer(PrintStream printStream) {
  		this(printStream, null);
  	}
  
  	public PrintlnStreamConsumer(PrintStream printStream, List<Ignore> ignorers) {
  		this.printStream = printStream;
  		this.ignorers = ignorers;
  	}
  
  	@Override
  	public void consumeLine(String line) {
  		lineCount++;
  		if (enableIgnorers && ignore(line, ignorers)) {
  			skipCount++;
  			Object[] args = { skipCount, lineCount, line };
  			logger.debug("{} Skipping line {} [{}]", args);
  		} else {
  			printStream.println(line);
  		}
  	}
  
  	protected boolean ignore(String line, List<Ignore> ignorers) {
  		if (ignorers == null) {
  			return false;
  		}
  		for (Ignore ignorer : ignorers) {
  			if (ignorer.ignore(line)) {
  				return true;
  			}
  		}
  		return false;
  	}
  
  	public PrintStream getPrintStream() {
  		return printStream;
  	}
  
  	public void setPrintStream(PrintStream printStream) {
  		this.printStream = printStream;
  	}
  
  	public long getLineCount() {
  		return lineCount;
  	}
  
  	public void setLineCount(long lineCount) {
  		this.lineCount = lineCount;
  	}
  
  	public long getSkipCount() {
  		return skipCount;
  	}
  
  	public void setSkipCount(long skipCount) {
  		this.skipCount = skipCount;
  	}
  
  	public List<Ignore> getIgnorers() {
  		return ignorers;
  	}
 
 	public void setIgnorers(List<Ignore> ignorers) {
 		this.ignorers = ignorers;
 	}
 
 }