add missing file

src/neoe/util/FileIterator.java

@@ -0,0 +1,122 @@
+package neoe.util;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileReader;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Comparator;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+public class FileIterator implements Iterable<File> {
+
+	// private String root;
+	List<File> buf;
+	private boolean sortByName;
+
+	public FileIterator(String dir) {
+		buf = new ArrayList<File>();
+		File f = new File(dir);
+		buf.add(f);
+	}
+
+	public FileIterator(String dir, boolean sortByName) {
+		this(dir);
+		this.sortByName = sortByName;
+	}
+
+	/**
+	 * @param args
+	 * @throws Exception
+	 */
+	public static void main(String[] args) throws Exception {
+		Iterable<File> it = new FileIterator("C:/xxx");
+		int total = 0;
+		int dircnt = 0;
+		int[] linecnt = new int[2];
+		Map<String, Integer> cnt = new HashMap<String, Integer>();
+		for (File f : it) {
+			if (f.isDirectory()) {
+				dircnt++;
+				continue;
+			}
+			total++;
+			String fn = f.getName();
+			int p1 = fn.indexOf(".");
+			if (p1 > 0) {
+				String ext = fn.substring(p1);
+				Integer i = cnt.get(ext);
+				if (i == null) {
+					cnt.put(ext, 1);
+				} else {
+					cnt.put(ext, i + 1);
+				}
+				if (ext.equalsIgnoreCase(".xxx")) {
+					getLineCnt(f, linecnt);
+				}
+			}
+
+			System.out.println(f.getAbsolutePath());
+
+		}
+		System.out.println(cnt);
+		System.out.println(linecnt[0] + "," + linecnt[1] + "," + (linecnt[1] * 100 / linecnt[0]) + "%");
+	}
+
+	private static int getLineCnt(File f, int[] linecnt) throws Exception {
+		int cnt = 0;
+		BufferedReader in = new BufferedReader(new FileReader(f));
+		String line;
+		while ((line = in.readLine()) != null) {
+			linecnt[0]++;
+			if (line.trim().startsWith("'")) {
+				linecnt[1]++;
+			}
+		}
+		return cnt;
+	}
+
+	@Override
+	public Iterator<File> iterator() {
+		return new Iterator<File>() {
+
+			@Override
+			public boolean hasNext() {
+				return buf.size() > 0;
+			}
+
+			@Override
+			public File next() {
+				File f = buf.remove(0);
+				if (f.isDirectory()) {
+					File[] sub = f.listFiles();
+					if (sub!=null){
+						if (sortByName) {
+							sortFiles(sub);
+						}
+						buf.addAll(Arrays.asList(sub));
+					}
+				}
+				return f;
+			}
+
+			@Override
+			public void remove() {
+			}
+		};
+	}
+
+	public static void sortFiles(File[] sub) {
+		Arrays.sort(sub, new Comparator<File>() {
+			@Override
+			public int compare(File o1, File o2) {
+				return o1.getName().compareTo(o2.getName());
+			}
+		});
+		
+	}
+
+}