Friki example source code file (TableRow.java)

This example Friki source code file (TableRow.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Friki tags/keywords

abstractstringfetcher, abstractstringfetcher, object, object, pattern, regexsplitstringfilter, string, string, stringbuffer, stringbuffer, stringfilter, stringstringsource, tablerow

The Friki TableRow.java source code

package wiki;

import org.stringtree.regex.Pattern;

import org.stringtree.factory.AbstractStringFetcher;
import org.stringtree.juicer.string.RegexSplitStringFilter;
import org.stringtree.juicer.string.StringFilter;
import org.stringtree.juicer.string.StringStringSource;
import org.stringtree.util.StringUtils;

public class TableRow
	extends AbstractStringFetcher
{
	private static final Pattern bar = Pattern.compile("(?<!\\\\)\\|");

	private void renderCell(StringBuffer buf, String cell, int blanks)
	{
		buf.append("<td");
		if (blanks > 0)
		{
			buf.append(" colspan='");
			buf.append(blanks+1);
			buf.append("'");
		}
		buf.append(">");
		buf.append(cell);
		buf.append("</td>");
	}

	public void renderRow(String row, StringBuffer buf)
	{
		row = row.trim();
		if (row.endsWith("|")) row = row.substring(0,row.length()-1);
		String[] cells = bar.split(row);
		int blanks = 0;
		String lastCell = null;

		buf.append("\n<tr>");

		for (int i = 0; i < cells.length; ++i)
		{
			String cell = cells[i];
			if (StringUtils.isBlank(cell))
			{
				++blanks;
			}
			else
			{
				if(lastCell != null)
				{
					renderCell(buf, lastCell, blanks);
					blanks = 0;
				}
				lastCell = cell;
			}
		}

		if(lastCell != null)
		{
			renderCell(buf, lastCell, blanks);
		}

		buf.append("</tr>");
	}

	public Object getObject(String content)
	{
		StringBuffer buf = new StringBuffer();
		String prev = null;

		StringFilter rows = new RegexSplitStringFilter("(^|\n)\\|");
		rows.connectSource(new StringStringSource(content));

		for (String row = rows.nextString(); row != null; row = rows.nextString())
		{
			if (row.length()==0)
			{
				prev = "|";
			}
			else
			{
				if (prev != null)
				{
					row = prev + row;
				}
				renderRow(row, buf);
			}
		}

		String ret = buf.toString();
		return ret;
	}
}