Change window server command (Get-Content → tail) because of 'Get-Content' only accept in Window powershell

Author: Dokyeongyun

src/main/java/root/common/server/implement/JschServer.java

@@ -128,6 +128,7 @@ public String getServerName() {
 	}
 
 	public String executeCommand(String command) throws JSchException, IOException {
+		log.debug(command);
 		Channel channel = openExecChannel(command);
 		InputStream in = connectChannel(channel);
 		String result = IOUtils.toString(in, "UTF-8");

src/main/java/root/core/repository/implement/WindowServerMonitoringRepository.java

@@ -45,7 +45,7 @@ public int getAlertLogFileLineCount(AlertLogCommand alc) {
 	public String checkAlertLog(AlertLogCommand alc) {
 		String result = "";
 		try {
-			String command = String.format("Get-Content %s -Tail %d", alc.getReadFilePath(), alc.getReadLine());
+			String command = String.format("tail %d %s", alc.getReadLine(), alc.getReadFilePath());
 			result = jsch.executeCommand(command);
 		} catch (Exception e) {
 			log.error(e.getMessage());

src/test/java/root/common/server/implement/JschServerTest.java

@@ -2,6 +2,7 @@
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
 import static org.junit.jupiter.api.Assertions.assertNotNull;
 import static org.junit.jupiter.api.Assertions.assertNull;
 import static org.junit.jupiter.api.Assertions.assertThrows;
@@ -157,11 +158,18 @@ public void testGetServerName() {
 		String serverName = jsch.getServerName();
 		assertEquals(serverName, "DKY SERVER");
 	}
+	
 	@Test
-	public void testExecuteCommand() throws JSchException, IOException {
+	public void testExecuteCommand_EchoCommand() throws JSchException, IOException {
 		String result = jsch.executeCommand("echo 1");
 		assertEquals(result, "1");
 	}
+	
+	@Test
+	public void testExecuteCommand_TailCommand() throws JSchException, IOException {
+		String result = jsch.executeCommand("tail -500 C://Users/aserv/Desktop/alert_DB.log");
+		assertNotEquals(result, "");
+	}
 
 	@Test
 	public void testValidateConn_Valid() {

src/test/java/root/core/repository/implement/WindowServerMonitoringRepositoryTest.java

@@ -103,7 +103,7 @@ public void testCheckAlertLog() throws JSchException, IOException {
 		alc.setReadLine(10);
 		alc.setReadFilePath("C:\\alert_DKYDB.log");
 
-		String command = String.format("Get-Content %s -Tail %d", alc.getReadFilePath(), alc.getReadLine());
+		String command = String.format("tail %d %s", alc.getReadLine(), alc.getReadFilePath());
 		when(jschServer.executeCommand(command)).thenReturn(alertLogString);
 
 		// Act
@@ -123,7 +123,7 @@ public void testCheckAlertLogDuringPeriod() throws JSchException, IOException {
 		String command1 = String.format("find /v /c \"\" %s", alc.getReadFilePath());
 		when(jschServer.executeCommand(command1)).thenReturn(String.valueOf(alertLogLines.length));
 
-		String command2 = String.format("Get-Content %s -Tail %d", alc.getReadFilePath(), alc.getReadLine());
+		String command2 = String.format("tail %d %s", alc.getReadLine(), alc.getReadFilePath());
 		when(jschServer.executeCommand(command2)).thenReturn(alertLogString);
 
 		// Act
@@ -144,14 +144,14 @@ public void testCheckAlertLogDuringPeriod_ReadLineBiggerThenTotalLineCnt() throw
 		String command1 = String.format("find /v /c \"\" %s", alc.getReadFilePath());
 		when(jschServer.executeCommand(command1)).thenReturn("26");
 
-		String command2 = String.format("Get-Content %s -Tail %d", alc.getReadFilePath(), alc.getReadLine());
+		String command2 = String.format("tail %d %s", alc.getReadLine(), alc.getReadFilePath());		
 		StringBuilder builder = new StringBuilder();
 		for (int i = 0; i < Math.min(alertLogLines.length, alc.getReadLine()); i++) {
 			builder.append(alertLogLines[i]).append("\n");
 		}
 		when(jschServer.executeCommand(command2)).thenReturn(builder.toString());
 
-		String command3 = String.format("Get-Content %s -Tail %d", alc.getReadFilePath(), alc.getReadLine() * 2);
+		String command3 = String.format("tail %d %s", alc.getReadLine() * 2, alc.getReadFilePath());
 		builder = new StringBuilder();
 		for (int i = 0; i < Math.min(alertLogLines.length, alc.getReadLine() * 2); i++) {
 			builder.append(alertLogLines[i]).append("\n");