Search Text File Content From Any Giving Directory

search_file_content.java

import java.awt.FileDialog;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.nio.ByteBuffer;
import java.nio.charset.Charset;
import java.util.*;

import javax.swing.JFileChooser;
import javax.swing.JOptionPane;

public class Search {
	private static List<File> sourceFiles = new ArrayList();
	private static List<File> sourceFileList;

	/**
	 * @param args
	 * @throws IOException
	 */
	public static void main(String[] args) throws Exception {
		// TODO Auto-generated method stub
		JFileChooser f = new JFileChooser();
		f.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
		f.setDialogTitle("Please Select A Directory , You wish search");
		f.setDialogType(FileDialog.SAVE);
		f.setApproveButtonText("Open Directory");
		f.setApproveButtonToolTipText("LOAD");
		f.showSaveDialog(null);

		// System.out.println(f.getCurrentDirectory());
		// System.out.println(f.getSelectedFile());
		String programDir = "C:/Program Files (x86)/Notepad++/";
		String docDir = f.getSelectedFile().getPath();// "C:/Users/m00264122.CHINA/Desktop/";

		// String pathOfFiles = "D:/Training Documents/usefull_infos/";
		if (null != docDir && !docDir.isEmpty()) {
			sourceFileList = getFiles(docDir);

			String searchString = JOptionPane
					.showInputDialog("What Do You Want to Search?");
			List paths = new ArrayList();

			if (null != searchString && !searchString.equals("")
					&& !searchString.isEmpty()) {
				boolean isFoundStringAtDirectory = false;
				for (int i = 0; i < sourceFileList.size(); i++) {
					String fileContent = readFile(sourceFileList.get(i)
							.getPath());
					if (containsWord(fileContent, searchString)) {
						String path = sourceFileList.get(i).getPath();
						String fileName = getFileName(path);
						ProcessBuilder builder = new ProcessBuilder(
								new String[] { programDir + "notepad++.exe",
										path });
						builder.start();
						isFoundStringAtDirectory = true;
					}
				}
				if (!isFoundStringAtDirectory) {
					JOptionPane.showMessageDialog(null,
							"Your Search String Couldnt Find the Directory = "
									+ docDir);
				}
			}
		}

	}

	private static String getFileName(String url) {

		int slashIndex = url.lastIndexOf('\\');
		int dotIndex = url.lastIndexOf('.', slashIndex);
		String filenameWithoutExtension;
		if (dotIndex == -1) {
			filenameWithoutExtension = url.substring(slashIndex + 1);
		} else {
			filenameWithoutExtension = url.substring(slashIndex + 1, dotIndex);
		}
		return filenameWithoutExtension;
	}

	private static boolean containsWord(String s, String w) {
		s = s.toLowerCase();
		w = w.toLowerCase();
		boolean result = s.contains(w);
		return result;
	}

	private static String readFile(String pathname) throws IOException {

		File file = new File(pathname);
		StringBuilder fileContents = new StringBuilder((int) file.length());
		Scanner scanner = new Scanner(file);
		String lineSeparator = System.getProperty("line.separator");

		try {
			while (scanner.hasNextLine()) {
				fileContents.append(scanner.nextLine() + lineSeparator);
			}
			return fileContents.toString();
		} finally {
			scanner.close();
		}
	}

	private static void showIt() throws IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

		String str = "";
		System.out.println("Type \"x\" to exit..");
		do {
			str = br.readLine();
			System.out.println(str);
		} while (str != "x");

	}

	private static List<File> getFiles(String path) {

		File[] arrayOfFile1;
		File root = new File(path);

		File[] list = root.listFiles();

		if (list == null)
			return null;

		int j = (arrayOfFile1 = list).length;
		for (int i = 0; i < j; ++i) {
			File f = arrayOfFile1[i];

			if ((f.isDirectory()) && (!(f.getName().equals(".svn")))) {
				getFiles(f.getAbsolutePath());
			} else if (!(f.getName().equals(".svn"))) {
				sourceFiles.add(f.getAbsoluteFile());
			}
		}
		return sourceFiles;
	}

}