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Posted to commits@beam.apache.org by lc...@apache.org on 2016/10/03 15:33:55 UTC

[2/3] incubator-beam git commit: Add initial bucket stuff.

Add initial bucket stuff.


Project: http://git-wip-us.apache.org/repos/asf/incubator-beam/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-beam/commit/ccd9bad1
Tree: http://git-wip-us.apache.org/repos/asf/incubator-beam/tree/ccd9bad1
Diff: http://git-wip-us.apache.org/repos/asf/incubator-beam/diff/ccd9bad1

Branch: refs/heads/master
Commit: ccd9bad18dcc0a1df7ebc82f43e89ddec838c037
Parents: 202acd1
Author: sammcveety <sa...@gmail.com>
Authored: Sat Sep 17 21:19:53 2016 -0400
Committer: Luke Cwik <lc...@google.com>
Committed: Mon Oct 3 08:20:12 2016 -0700

----------------------------------------------------------------------
 .../java/org/apache/beam/sdk/util/GcsUtil.java  | 67 +++++++++++++++++++-
 1 file changed, 64 insertions(+), 3 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/incubator-beam/blob/ccd9bad1/sdks/java/core/src/main/java/org/apache/beam/sdk/util/GcsUtil.java
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diff --git a/sdks/java/core/src/main/java/org/apache/beam/sdk/util/GcsUtil.java b/sdks/java/core/src/main/java/org/apache/beam/sdk/util/GcsUtil.java
index 41c372e..4befb1a 100644
--- a/sdks/java/core/src/main/java/org/apache/beam/sdk/util/GcsUtil.java
+++ b/sdks/java/core/src/main/java/org/apache/beam/sdk/util/GcsUtil.java
@@ -349,16 +349,45 @@ public class GcsUtil {
   }
 
   /**
+   * Returns the project number of the project which owns this bucket.
+   * If the bucket exists, it must be accessible otherwise the permissions
+   * exception will be propagated.
+   */
+  public long bucketOwner(GcsPath path) throws IOException {
+    return getBucket(
+        path,
+        BACKOFF_FACTORY.backoff(),
+        Sleeper.DEFAULT).getProjectNumber();
+  }
+
+  /**
+   * Creates a bucket for the provided project or propagates an error.
+   */
+  public void createBucket(GcsPath path, long projectNumber) throws IOException {
+    return createBucket(
+        path,
+        projectNumber,
+        BACKOFF_FACTORY.backoff(),
+        Sleeper.DEFAULT);
+  }
+
+  /**
    * Returns whether the GCS bucket exists. This will return false if the bucket
    * is inaccessible due to permissions.
    */
   @VisibleForTesting
   boolean bucketExists(GcsPath path, BackOff backoff, Sleeper sleeper) throws IOException {
+    return getBucket(path, backoff, sleeper) != null;
+  }
+
+  @VisibleForTesting
+  @Nullable
+  Storage.Bucket getBucket(GcsPath path, BackOff backoff, Sleeper sleeper) throws IOException {
     Storage.Buckets.Get getBucket =
         storageClient.buckets().get(path.getBucket());
 
       try {
-        ResilientOperation.retry(
+        Storage.Bucket bucket = ResilientOperation.retry(
             ResilientOperation.getGoogleRequestCallable(getBucket),
             backoff,
             new RetryDeterminer<IOException>() {
@@ -372,10 +401,11 @@ public class GcsUtil {
             },
             IOException.class,
             sleeper);
-        return true;
+        
+        return bucket;
       } catch (GoogleJsonResponseException e) {
         if (errorExtractor.itemNotFound(e) || errorExtractor.accessDenied(e)) {
-          return false;
+          return null;
         }
         throw e;
       } catch (InterruptedException e) {
@@ -386,6 +416,37 @@ public class GcsUtil {
      }
   }
 
+  @VisibleForTesting
+  void createBucket(GcsPath path, long projectNumber, BackOff backoff, Sleeper sleeper)
+        throws IOException {
+    Storage.Buckets.Insert insertBucket =
+        storageClient.buckets().insert(path.getBucket());
+    insertBucket.setProject(String.valueOf(projectNumber));
+
+    try {
+      ResilientOperation.retry(
+        ResilientOperation.getGoogleRequestCallable(insertBucket),
+        backoff,
+        new RetryDeterminer<IOException>() {
+          @Override
+            public boolean shouldRetry(IOException e) {
+            if (errorExtractor.itemNotFound(e) || errorExtractor.accessDenied(e)) {
+              return false;
+            }
+            return RetryDeterminer.SOCKET_ERRORS.shouldRetry(e);
+          }
+        },
+        IOException.class,
+        sleeper);
+      return;
+    } catch (InterruptedException e) {
+      Thread.currentThread().interrupt();
+      throw new IOException(
+        String.format("Error while attempting to create bucket gs://%s for rproject %s",
+                      path.getBucket(), projectNumber), e);
+    }
+  }
+
   private static void executeBatches(List<BatchRequest> batches) throws IOException {
     ListeningExecutorService executor = MoreExecutors.listeningDecorator(
         MoreExecutors.getExitingExecutorService(