Implemented FileWatcher.

src/test/java/info/fetter/logstashforwarder/FileWatcherTest.java

@@ -0,0 +1,71 @@
+package info.fetter.logstashforwarder;
+
+import static org.apache.log4j.Level.*;
+
+import java.io.File;
+import java.io.IOException;
+
+import org.apache.commons.io.FileUtils;
+import org.apache.log4j.BasicConfigurator;
+import org.apache.log4j.Logger;
+import org.apache.log4j.spi.RootLogger;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+public class FileWatcherTest {
+	Logger logger = Logger.getLogger(FileWatcherTest.class);
+
+	@BeforeClass
+	public static void setUpBeforeClass() throws Exception {
+		BasicConfigurator.configure();
+		RootLogger.getRootLogger().setLevel(TRACE);
+	}
+
+	@AfterClass
+	public static void tearDownAfterClass() throws Exception {
+		BasicConfigurator.resetConfiguration();
+	}
+
+	//@Test
+	public void testFileWatch() throws InterruptedException, IOException {
+		FileWatcher watcher = new FileWatcher();
+		watcher.addFilesToWatch("./test.txt");
+		for(int i = 0; i < 100; i++) {
+			Thread.sleep(1000);
+			watcher.checkFiles();
+		}
+	}
+
+	@Test
+	public void testWildcardWatch() throws InterruptedException, IOException {
+		FileWatcher watcher = new FileWatcher();
+		watcher.addFilesToWatch("./test*.txt");
+
+		File file1 = new File("test1.txt");
+		File file2 = new File("test2.txt");
+		File file3 = new File("test3.txt");
+		File file4 = new File("test4.txt");
+		
+		watcher.checkFiles();
+		Thread.sleep(500);
+		FileUtils.write(file1, "line 1\n", true);
+		Thread.sleep(500);
+		watcher.checkFiles();
+		FileUtils.forceDeleteOnExit(file1);
+//		FileUtils.touch(file2);
+//		Thread.sleep(500);
+//		watcher.checkFiles();
+//		FileUtils.touch(file3);
+//		FileUtils.forceDelete(file1);
+//		FileUtils.forceDelete(file2);
+//		Thread.sleep(500);
+//		watcher.checkFiles();
+//		FileUtils.moveFile(file3, file4);
+//		FileUtils.touch(file3);
+//		Thread.sleep(500);
+//		watcher.checkFiles();
+//		FileUtils.forceDelete(file3);
+//		FileUtils.forceDelete(file4);
+	}
+}