add: Files类支持按行读取的API

whoooami · Sep 22, 2013 · 08ce38d · 08ce38d
1 parent 0743627
commit 08ce38d
Showing 1 changed file with 31 additions and 0 deletions.
diff --git a/src/org/nutz/lang/Files.java b/src/org/nutz/lang/Files.java
@@ -2,6 +2,7 @@
 
 import java.io.BufferedInputStream;
 import java.io.BufferedOutputStream;
+import java.io.BufferedReader;
 import java.io.File;
 import java.io.FileFilter;
 import java.io.FileInputStream;
@@ -18,6 +19,7 @@
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipFile;
 
+import org.nutz.lang.util.Callback;
 import org.nutz.lang.util.ClassTools;
 import org.nutz.lang.util.Disks;
 
@@ -989,4 +991,33 @@ else if (flag)
     public static boolean copyOnWrite(String path, Object obj) {
     	return copyOnWrite(new File(path), obj);
     }
+
+    public static List<String> readLines(File f) {
+    	List<String> lines = new ArrayList<String>();
+    	BufferedReader br = null;
+    	try {
+			br = Streams.buffr(Streams.fileInr(f));
+			while (br.ready())
+				lines.add(br.readLine());
+		} catch (IOException e) {
+			throw Lang.wrapThrow(e);
+		} finally {
+			Streams.safeClose(br);
+		}
+    	return lines;
+    }
+
+    public static void readLine(File f, Callback<String> callback) {
+    	BufferedReader br = null;
+    	try {
+			br = Streams.buffr(Streams.fileInr(f));
+			while (br.ready())
+				callback.invoke(br.readLine());
+    	} catch (ExitLoop e) {
+		} catch (IOException e) {
+			throw Lang.wrapThrow(e);
+		} finally {
+			Streams.safeClose(br);
+		}
+    }
 }