From 639fdbe0a2b96a580b4d28053f9a71b266cba5a3 Mon Sep 17 00:00:00 2001
From: Abraham Elmahrek <abe@apache.org>
Date: Mon, 16 Mar 2015 20:27:12 -0700
Subject: [PATCH] SQOOP-2219: Sqoop2: Skip missing input in
 DirectoryExistsValidator

(Jarek Jarcec Cecho via Abraham Elmahrek)
---
 .../validators/DirectoryExistsValidator.java        |  5 +++++
 .../validators/TestDirectoryExistsValidator.java    | 13 +++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/common/src/main/java/org/apache/sqoop/validation/validators/DirectoryExistsValidator.java b/common/src/main/java/org/apache/sqoop/validation/validators/DirectoryExistsValidator.java
index d81e6b03..60fda502 100644
--- a/common/src/main/java/org/apache/sqoop/validation/validators/DirectoryExistsValidator.java
+++ b/common/src/main/java/org/apache/sqoop/validation/validators/DirectoryExistsValidator.java
@@ -17,6 +17,7 @@
  */
 package org.apache.sqoop.validation.validators;
 
+import org.apache.commons.lang.StringUtils;
 import org.apache.sqoop.validation.Status;
 
 import java.io.File;
@@ -27,6 +28,10 @@
 public class DirectoryExistsValidator extends AbstractValidator<String> {
   @Override
   public void validate(String filePath) {
+    if(StringUtils.isBlank(filePath)) {
+      return;
+    }
+
     File file = new File(filePath);
 
     if(!file.exists()) {
diff --git a/common/src/test/java/org/apache/sqoop/validation/validators/TestDirectoryExistsValidator.java b/common/src/test/java/org/apache/sqoop/validation/validators/TestDirectoryExistsValidator.java
index e6c4ec30..458aa899 100644
--- a/common/src/test/java/org/apache/sqoop/validation/validators/TestDirectoryExistsValidator.java
+++ b/common/src/test/java/org/apache/sqoop/validation/validators/TestDirectoryExistsValidator.java
@@ -38,6 +38,19 @@ public void setUp() {
     assertEquals(0, validator.getMessages().size());
   }
 
+  @Test
+  public void testNull() {
+    validator.validate(null);
+    assertEquals(Status.OK, validator.getStatus());
+  }
+
+  @Test
+  public void testEmpty() {
+    validator.validate("");
+    assertEquals(Status.OK, validator.getStatus());
+  }
+
+
   @Test
   public void testExistingDirectory() {
     File tmpDir = Files.createTempDir();