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Posted to commits@jclouds.apache.org by ga...@apache.org on 2020/04/17 10:24:27 UTC
[jclouds] branch master updated: JCLOUDS-1543: change
FetchBlobMetadata to retain original blob order
This is an automated email from the ASF dual-hosted git repository.
gaul pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/jclouds.git
The following commit(s) were added to refs/heads/master by this push:
new 5ac9211 JCLOUDS-1543: change FetchBlobMetadata to retain original blob order
5ac9211 is described below
commit 5ac92111c4e9347c492a16ecd402acafdb1f9cd7
Author: Roded Bahat <ro...@model9.io>
AuthorDate: Tue Apr 14 20:17:33 2020 +0300
JCLOUDS-1543: change FetchBlobMetadata to retain original blob order
---
.../strategy/internal/FetchBlobMetadata.java | 20 +++++-
.../strategy/internal/FetchBlobMetadataTest.java | 82 ++++++++++++++++++++++
2 files changed, 100 insertions(+), 2 deletions(-)
diff --git a/blobstore/src/main/java/org/jclouds/blobstore/strategy/internal/FetchBlobMetadata.java b/blobstore/src/main/java/org/jclouds/blobstore/strategy/internal/FetchBlobMetadata.java
index 191ecbd..535856d 100644
--- a/blobstore/src/main/java/org/jclouds/blobstore/strategy/internal/FetchBlobMetadata.java
+++ b/blobstore/src/main/java/org/jclouds/blobstore/strategy/internal/FetchBlobMetadata.java
@@ -19,6 +19,9 @@ package org.jclouds.blobstore.strategy.internal;
import static com.google.common.base.Preconditions.checkState;
import static org.jclouds.concurrent.FutureIterables.transformParallel;
+import java.util.Collections;
+import java.util.LinkedHashMap;
+import java.util.Map;
import java.util.concurrent.Callable;
import javax.annotation.Resource;
@@ -79,6 +82,15 @@ public class FetchBlobMetadata implements Function<PageSet<? extends StorageMeta
public PageSet<? extends StorageMetadata> apply(PageSet<? extends StorageMetadata> in) {
checkState(container != null, "container name should be initialized");
+ if (in == null) {
+ return new PageSetImpl<>(Collections.<StorageMetadata>emptyList(), null);
+ }
+
+ Map<String, StorageMetadata> orderedMap = new LinkedHashMap<>(in.size());
+ for (StorageMetadata storageMetadata : in) {
+ orderedMap.put(storageMetadata.getName(), null);
+ }
+
Iterable<StorageMetadata> returnv = Lists.newArrayList(transformParallel(in,
new Function<StorageMetadata, ListenableFuture<? extends StorageMetadata>>() {
@@ -88,7 +100,7 @@ public class FetchBlobMetadata implements Function<PageSet<? extends StorageMeta
return Futures.immediateFuture(from);
}
return userExecutor.submit(new Callable<StorageMetadata>() {
- @Override public StorageMetadata call() throws Exception {
+ @Override public StorageMetadata call() {
return blobstore.blobMetadata(container, from.getName());
}
});
@@ -96,6 +108,10 @@ public class FetchBlobMetadata implements Function<PageSet<? extends StorageMeta
}, userExecutor, maxTime, logger, String.format("getting metadata from containerName: %s", container)));
- return new PageSetImpl<StorageMetadata>(returnv, in.getNextMarker());
+ for (StorageMetadata storageMetadata : returnv) {
+ orderedMap.put(storageMetadata.getName(), storageMetadata);
+ }
+
+ return new PageSetImpl<>(orderedMap.values(), in.getNextMarker());
}
}
diff --git a/blobstore/src/test/java/org/jclouds/blobstore/strategy/internal/FetchBlobMetadataTest.java b/blobstore/src/test/java/org/jclouds/blobstore/strategy/internal/FetchBlobMetadataTest.java
new file mode 100644
index 0000000..bd4cbb9
--- /dev/null
+++ b/blobstore/src/test/java/org/jclouds/blobstore/strategy/internal/FetchBlobMetadataTest.java
@@ -0,0 +1,82 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.jclouds.blobstore.strategy.internal;
+
+import com.google.common.collect.Maps;
+import com.google.common.collect.Ordering;
+import com.google.inject.Injector;
+import org.jclouds.ContextBuilder;
+import org.jclouds.blobstore.BlobStore;
+import org.jclouds.blobstore.domain.Blob;
+import org.jclouds.blobstore.domain.PageSet;
+import org.jclouds.blobstore.domain.StorageMetadata;
+import org.jclouds.blobstore.options.ListContainerOptions;
+import org.jclouds.util.Closeables2;
+import org.testng.annotations.AfterClass;
+import org.testng.annotations.BeforeClass;
+import org.testng.annotations.Test;
+
+import java.util.Comparator;
+import java.util.Map;
+
+import static org.testng.Assert.assertNotNull;
+import static org.testng.Assert.assertTrue;
+
+@Test(testName = "FetchBlobMetadataTest", singleThreaded = true)
+public class FetchBlobMetadataTest {
+
+ private static final String CONTAINER_NAME = "container";
+
+ private BlobStore blobStore;
+ private FetchBlobMetadata fetchBlobMetadata;
+
+ @BeforeClass
+ public void setupBlobStore() {
+ Injector injector = ContextBuilder.newBuilder("transient").buildInjector();
+ blobStore = injector.getInstance(BlobStore.class);
+ fetchBlobMetadata = injector.getInstance(FetchBlobMetadata.class);
+ fetchBlobMetadata.setContainerName(CONTAINER_NAME);
+ }
+
+ @AfterClass
+ public void closeBlobSore() {
+ if (blobStore != null) {
+ Closeables2.closeQuietly(blobStore.getContext());
+ }
+ }
+
+ @Test
+ public void testRetainsOriginalOrder() {
+ blobStore.createContainerInLocation(null, CONTAINER_NAME);
+ for (int blobIndex = 0; blobIndex < 20; blobIndex++) {
+ final Blob blob = blobStore.blobBuilder("prefix-" + blobIndex).payload("").build();
+ blobStore.putBlob(CONTAINER_NAME, blob);
+ }
+
+ final PageSet<? extends StorageMetadata> pageSet =
+ blobStore.list(CONTAINER_NAME, ListContainerOptions.Builder.withDetails());
+ final PageSet<? extends StorageMetadata> resultPageSet = fetchBlobMetadata.apply(pageSet);
+ assertNotNull(resultPageSet);
+
+ assertTrue(Ordering.from(new Comparator<StorageMetadata>() {
+ @Override
+ public int compare(StorageMetadata o1, StorageMetadata o2) {
+ return o1.getName().compareTo(o2.getName());
+ }
+ }).isOrdered(resultPageSet));
+ }
+}