com.github.becausetesting.commonswindow.Log4jMessageAppender Maven / Gradle / Ivy

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package com.github.becausetesting.commonswindow;

import java.awt.Color;

/*-
 * #%L
 * commons-window
 * $Id:$
 * $HeadURL:$
 * %%
 * Copyright (C) 2016 Alter Hu
 * %%
 * 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.
 * #L%
 */

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

import javax.swing.JTextPane;
import javax.swing.text.AttributeSet;
import javax.swing.text.BadLocationException;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.StyleConstants;
import javax.swing.text.StyleContext;

import org.apache.log4j.AppenderSkeleton;
import org.apache.log4j.Level;
import org.apache.log4j.spi.LocationInfo;
import org.apache.log4j.spi.LoggingEvent;

import com.github.becausetesting.apache.commons.FilenameUtils;

public class Log4jMessageAppender extends AppenderSkeleton {

	// private JTextArea JTextArea;
	private JTextPane JTextPane;

	@Override
	public void close() {
		// TODO Auto-generated method stub

	}

	@Override
	public boolean requiresLayout() {
		// TODO Auto-generated method stub
		return false;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.apache.log4j.AppenderSkeleton#append(org.apache.log4j.spi.
	 * LoggingEvent)
	 */
	@Override
	protected void append(LoggingEvent event) {
		// TODO Auto-generated method stub
		Date currentTime = Calendar.getInstance().getTime();
		String formatTime = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(currentTime);
		Level level = event.getLevel();
		LocationInfo locationInfo = event.getLocationInformation();
		String className = FilenameUtils.removeExtension(locationInfo.getFileName())+"("+locationInfo.getMethodName()+":"+locationInfo.getLineNumber()+")";
		String message = formatTime + " " + className +" " + level.toString()+ " - " + event.getRenderedMessage()+"\n";
		// JTextArea.append(formatTime+" "+level.toString()+" "+className+"-
		// "+message+"\n");
		Color color;
		if (level == Level.ERROR) {
			color = Color.RED;
		} else if (level == Level.WARN || level == Level.TRACE) {
			color = Color.BLUE;
		} else {
			color = Color.BLACK;
		}

		appendToPane(JTextPane, message, color);

	}

	public void appendToPane(JTextPane tp, String msg, Color c) {
		StyleContext sc = StyleContext.getDefaultStyleContext();
		AttributeSet aset = sc.addAttribute(SimpleAttributeSet.EMPTY, StyleConstants.Foreground, c);

		aset = sc.addAttribute(aset, StyleConstants.FontFamily, "Lucida Console");
		aset = sc.addAttribute(aset, StyleConstants.Alignment, StyleConstants.ALIGN_JUSTIFIED);

		int len = tp.getDocument().getLength();
		/*tp.setCaretPosition(len);
		tp.setCharacterAttributes(aset, false);
		tp.replaceSelection(msg);*/
		try {
			tp.setCaretPosition(len);
			tp.getDocument().insertString(len, msg, aset);
		} catch (BadLocationException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	public JTextPane getJTextPane() {
		return JTextPane;
	}

	public void setJTextPane(JTextPane jTextPane) {
		JTextPane = jTextPane;
	}

}