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Posted to commits@zeppelin.apache.org by mo...@apache.org on 2016/02/20 17:49:38 UTC

incubator-zeppelin git commit: Return empty file list instead of throwing error when dependency artifact is empty

Repository: incubator-zeppelin
Updated Branches:
  refs/heads/master 9a610a7a2 -> 719134437


Return empty file list instead of throwing error when dependency artifact is empty

### What is this PR for?
This PR returns empty list of dependency files instead of throwing error when dependency artifact input form in interpreter setting is empty.

### What type of PR is it?
Bug Fix

### Is there a relevant Jira issue?
No. The bug is reported through comment in #673

### Questions:
* Does the licenses files need update? No
* Is there breaking changes for older versions? No
* Does this needs documentation? No

Author: Mina Lee <mi...@nflabs.com>

Closes #716 from minahlee/fix/emptyArtifact and squashes the following commits:

22d5344 [Mina Lee] Return empty file list instead of throwing error when dependency artifact is empty


Project: http://git-wip-us.apache.org/repos/asf/incubator-zeppelin/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-zeppelin/commit/71913443
Tree: http://git-wip-us.apache.org/repos/asf/incubator-zeppelin/tree/71913443
Diff: http://git-wip-us.apache.org/repos/asf/incubator-zeppelin/diff/71913443

Branch: refs/heads/master
Commit: 7191344371109284833585cb8b44609e420358a2
Parents: 9a610a7
Author: Mina Lee <mi...@nflabs.com>
Authored: Mon Feb 15 14:13:41 2016 +0900
Committer: Lee moon soo <mo...@apache.org>
Committed: Sat Feb 20 08:53:06 2016 -0800

----------------------------------------------------------------------
 .../apache/zeppelin/dep/DependencyResolver.java | 40 +++++++++++---------
 1 file changed, 22 insertions(+), 18 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/incubator-zeppelin/blob/71913443/zeppelin-interpreter/src/main/java/org/apache/zeppelin/dep/DependencyResolver.java
----------------------------------------------------------------------
diff --git a/zeppelin-interpreter/src/main/java/org/apache/zeppelin/dep/DependencyResolver.java b/zeppelin-interpreter/src/main/java/org/apache/zeppelin/dep/DependencyResolver.java
index 21e1cbb..60ef1f9 100644
--- a/zeppelin-interpreter/src/main/java/org/apache/zeppelin/dep/DependencyResolver.java
+++ b/zeppelin-interpreter/src/main/java/org/apache/zeppelin/dep/DependencyResolver.java
@@ -71,8 +71,8 @@ public class DependencyResolver extends AbstractDependencyResolver {
   public synchronized List<File> load(String artifact, Collection<String> excludes)
       throws RepositoryException, IOException {
     if (StringUtils.isBlank(artifact)) {
-      // Should throw here
-      throw new RuntimeException("Invalid artifact to load");
+      // Skip dependency loading if artifact is empty
+      return new LinkedList<File>();
     }
 
     // <groupId>:<artifactId>[:<extension>[:<classifier>]]:<version>
@@ -88,22 +88,26 @@ public class DependencyResolver extends AbstractDependencyResolver {
   
   public List<File> load(String artifact, Collection<String> excludes, String destPath)
       throws RepositoryException, IOException {
-    List<File> libs = load(artifact, excludes);
-    
-    // find home dir
-    String home = System.getenv("ZEPPELIN_HOME");
-    if (home == null) {
-      home = System.getProperty("zeppelin.home");
-    }
-    if (home == null) {
-      home = "..";
-    }
-    
-    for (File srcFile: libs) {
-      File destFile = new File(home + "/" + destPath, srcFile.getName());
-      if (!destFile.exists() || !FileUtils.contentEquals(srcFile, destFile)) {
-        FileUtils.copyFile(srcFile, destFile);
-        logger.info("copy {} to {}", srcFile.getAbsolutePath(), destPath);
+    List<File> libs = new LinkedList<File>();
+
+    if (StringUtils.isNotBlank(artifact)) {
+      libs = load(artifact, excludes);
+
+      // find home dir
+      String home = System.getenv("ZEPPELIN_HOME");
+      if (home == null) {
+        home = System.getProperty("zeppelin.home");
+      }
+      if (home == null) {
+        home = "..";
+      }
+
+      for (File srcFile : libs) {
+        File destFile = new File(home + "/" + destPath, srcFile.getName());
+        if (!destFile.exists() || !FileUtils.contentEquals(srcFile, destFile)) {
+          FileUtils.copyFile(srcFile, destFile);
+          logger.info("copy {} to {}", srcFile.getAbsolutePath(), destPath);
+        }
       }
     }
     return libs;