My_CsvWriter.java

package CrowdBenchmark.tools.io;

import java.io.File;
import java.io.FileWriter;
import java.util.List;

import CrowdBenchmark.models.Data;

import com.csvreader.CsvWriter;

public class My_CsvWriter {
	private static My_CsvWriter singleton;
	private String defaultPath;

	private My_CsvWriter() {
		
	}

	private My_CsvWriter(String path) {
		defaultPath = path;
	}

	public static My_CsvWriter getInstance() {
		if (singleton == null) {
			singleton = new My_CsvWriter();
		}
		return singleton;
	}

	public String WriteToFile(String input, String FileName) {
		return WriteToFile(input, FileName, true, false);
	}

	public void WriteToFile(List<Data> input, String path, String title) {
		try {
			CsvWriter csvOutput = new CsvWriter(new FileWriter(path, false),
					',');
			String[] labels = title.split("\t");
			for (String piece : labels) {
				csvOutput.write(piece);
			}
			csvOutput.endRecord();
			int size = input.size();
			int start = 0;
			for (; start < size; start++) {
				Data onerow = input.get(start);
				String[] content = onerow.toString().split("\t");
				for (String piece : content) {
					csvOutput.write(piece);
				}
				csvOutput.endRecord();
			}
			csvOutput.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	public String WriteToFile(String input, String filename, boolean withTitle,
			boolean rawdata) {
		String FileName = filename;
		String[] lines = input.split("\n");
		if (rawdata) {
			saveRawFile(FileName, lines, withTitle);
		} else {
			saveGeneral(FileName, withTitle, lines);
		}
		return FileName;
	}

	private void saveRawFile(String outputFile, String[] lines,
			boolean withTitle) {
		boolean alreadyExists = new File(outputFile).exists();
		try {
			CsvWriter csvOutput = new CsvWriter(
					new FileWriter(outputFile, true), ',');
			int size = lines.length;
			int start = 0;
			if (!withTitle)
				start = 1;
			if (alreadyExists) {
				start = 1;
			}
			for (; start < size; start++) {
				String line = lines[start];
				csvOutput.write(line);
				csvOutput.endRecord();
			}
			csvOutput.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	private void saveGeneral(String outputFile, boolean withTitle,
			String[] lines) {
		boolean alreadyExists = new File(outputFile).exists();
		try {
			CsvWriter csvOutput = new CsvWriter(
					new FileWriter(outputFile, true), ',');
			int size = lines.length;
			int start = 0;
			if (!withTitle)
				start = 1;
			if (alreadyExists) {
				start = 1;
			}
			for (; start < size; start++) {
				String line = lines[start];
				String[] content = line.split("\t");
				for (String piece : content) {
					csvOutput.write(piece);
				}
				csvOutput.endRecord();
			}
			csvOutput.close();

		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}