/**
* Retrieves the blob metadata. An inventory will be retrieved to obtain the blob list and the
* method will iterate through it. This operation will take several hours and the result may be
* inaccurate (Inventories are updated every 24 hours).
*
* @param container container name
* @param key blob name
* @return null if the blob doesn't exist, the blob metadata otherwise
* @see <a href="http://aws.amazon.com/glacier/faqs/#data-inventories" />
*/
@Override
public BlobMetadata blobMetadata(String container, String key) {
PageSet<? extends StorageMetadata> blobMetadataSet = list(container, null);
for (StorageMetadata blob : blobMetadataSet) {
if (blob.getName().equals(key)) {
return (BlobMetadata) blob;
}
}
return null;
}
/** http://code.google.com/p/jclouds/issues/detail?id=992 */
public void testUseBucketWithUpperCaseName() throws Exception {
String bucketName = CONTAINER_PREFIX + "-TestBucket";
String blobName = "TestBlob.txt";
StorageMetadata container = null;
BlobStore store = view.getBlobStore();
// Create and use a valid bucket name with uppercase characters in the bucket name (US regions
// only)
try {
store.createContainerInLocation(null, bucketName);
for (StorageMetadata metadata : store.list()) {
if (metadata.getName().equals(bucketName)) {
container = metadata;
break;
}
}
assertNotNull(container);
store.putBlob(
bucketName,
store.blobBuilder(blobName).payload("This is a test!").contentType("text/plain").build());
assertNotNull(store.getBlob(bucketName, blobName));
} finally {
if (container != null) {
store.deleteContainer(bucketName);
}
}
// Try to create the same bucket successfully created above in one of the non-US regions to
// ensure an error is
// encountered as expected.
Location location = null;
for (Location pLocation : store.listAssignableLocations()) {
if (!ImmutableSet.of(Region.US_STANDARD, Region.US_EAST_1, Region.US_WEST_1, Region.US_WEST_2)
.contains(pLocation.getId())) {
location = pLocation;
break;
}
}
try {
store.createContainerInLocation(location, bucketName);
fail("Should had failed because in non-US regions, mixed-case bucket names are invalid.");
} catch (AWSResponseException e) {
assertEquals("InvalidBucketName", e.getError().getCode());
}
}
public boolean apply(StorageMetadata metadata) {
if (prefix == null) return metadata.getName().indexOf(delimiter) == -1;
// ensure we don't accidentally append twice
String toMatch = prefix.endsWith("/") ? prefix : prefix + delimiter;
if (metadata.getName().startsWith(toMatch)) {
String unprefixedName = metadata.getName().replaceFirst(toMatch, "");
if (unprefixedName.equals("")) {
// we are the prefix in this case, return false
return false;
}
return unprefixedName.indexOf(delimiter) == -1;
}
return false;
}
private void checkForContainerContent(
final String containerName, String inDirectory, Set<String> expectedBlobKeys) {
ListContainerOptions options = ListContainerOptions.Builder.recursive();
if (null != inDirectory && !"".equals(inDirectory)) options.inDirectory(inDirectory);
PageSet<? extends StorageMetadata> blobsRetrieved = blobStore.list(containerName, options);
for (Iterator<? extends StorageMetadata> it = blobsRetrieved.iterator(); it.hasNext(); ) {
// TODO: FluentIterable
if (it.next().getType() != StorageType.BLOB) {
it.remove();
}
}
// nothing expected
if (null == expectedBlobKeys || 0 == expectedBlobKeys.size()) {
assertTrue(
blobsRetrieved.isEmpty(),
"Wrong blob number retrieved in the container [" + containerName + "]");
return;
}
// copies values
Set<String> expectedBlobKeysCopy = Sets.newHashSet();
for (String value : expectedBlobKeys) {
expectedBlobKeysCopy.add(value);
}
assertEquals(
blobsRetrieved.size(),
expectedBlobKeysCopy.size(),
"Wrong blob number retrieved in the container [" + containerName + "]");
for (StorageMetadata data : blobsRetrieved) {
String blobName = data.getName();
if (!expectedBlobKeysCopy.remove(blobName)) {
fail(
"List for container ["
+ containerName
+ "] contains unexpected value ["
+ blobName
+ "]");
}
}
assertTrue(
expectedBlobKeysCopy.isEmpty(),
"List operation for container [" + containerName + "] doesn't return all values.");
}
public String apply(StorageMetadata metadata) {
String working = metadata.getName();
if (prefix != null) {
// ensure we don't accidentally append twice
String toMatch = prefix.endsWith("/") ? prefix : prefix + delimiter;
if (working.startsWith(toMatch)) {
working = working.replaceFirst(toMatch, "");
}
}
if (working.contains(delimiter)) {
return working.substring(0, working.indexOf(delimiter));
}
return NO_PREFIX;
}
/** Test of list method of the root context */
public void testList_Root() throws IOException {
PageSet<? extends StorageMetadata> containersRetrieved;
Set<String> containersCreated = Sets.newHashSet();
// Testing list with no containers
containersRetrieved = blobStore.list();
assertTrue(
containersRetrieved.isEmpty(), "List operation returns a not empty set of container");
// Testing list with some containers
String[] containerNames = {"34343", "aaaa", "bbbbb"};
containersCreated = Sets.newHashSet();
for (String containerName : containerNames) {
blobStore.createContainerInLocation(null, containerName);
containersCreated.add(containerName);
}
containersRetrieved = blobStore.list();
assertEquals(
containersCreated.size(), containersRetrieved.size(), "Different numbers of container");
for (StorageMetadata data : containersRetrieved) {
String containerName = data.getName();
if (!containersCreated.remove(containerName)) {
fail("Container list contains unexpected value [" + containerName + "]");
}
}
assertTrue(containersCreated.isEmpty(), "List operation doesn't return all values.");
for (String containerName : containerNames) {
// delete all creaded containers
blobStore.deleteContainer(containerName);
}
containersRetrieved = blobStore.list();
assertTrue(
containersRetrieved.isEmpty(), "List operation returns a not empty set of container");
}
@Override
public String execute(StorageMetadata metadata) {
switch (metadata.getType()) {
case CONTAINER:
case FOLDER:
case RELATIVE_PATH:
return metadata.getName();
case BLOB:
BlobMetadata blobMd = (BlobMetadata) metadata;
for (String suffix : BlobStoreConstants.DIRECTORY_SUFFIXES) {
if (metadata.getName().endsWith(suffix)) {
return metadata.getName().substring(0, metadata.getName().lastIndexOf(suffix));
}
}
// It is important that this is last, in case there is a file with a known directory
// suffix who also has content type set to application/directory
if (blobMd.getContentMetadata().getContentType() != null
&& blobMd.getContentMetadata().getContentType().equals("application/directory"))
return metadata.getName();
}
return null;
}
/** default maxResults is 1000 */
@Override
public ListenableFuture<PageSet<? extends StorageMetadata>> list(
final String container, ListContainerOptions options) {
// Check if the container exists
if (!containerExistsSyncImpl(container)) {
return immediateFailedFuture(cnfe(container));
}
// Loading blobs from container
Iterable<String> blobBelongingToContainer = null;
try {
blobBelongingToContainer = storageStrategy.getBlobKeysInsideContainer(container);
} catch (IOException e) {
logger.error(e, "An error occurred loading blobs contained into container %s", container);
Throwables.propagate(e);
}
SortedSet<StorageMetadata> contents =
newTreeSet(
transform(
blobBelongingToContainer,
new Function<String, StorageMetadata>() {
public StorageMetadata apply(String key) {
Blob oldBlob = loadFileBlob(container, key);
checkState(
oldBlob != null,
"blob "
+ key
+ " is not present although it was in the list of "
+ container);
checkState(
oldBlob.getMetadata() != null,
"blob " + container + "/" + key + " has no metadata");
MutableBlobMetadata md = copy(oldBlob.getMetadata());
String directoryName = ifDirectoryReturnName.execute(md);
if (directoryName != null) {
md.setName(directoryName);
md.setType(StorageType.RELATIVE_PATH);
}
return md;
}
}));
String marker = null;
if (options != null) {
if (options.getMarker() != null) {
final String finalMarker = options.getMarker();
StorageMetadata lastMarkerMetadata =
find(
contents,
new Predicate<StorageMetadata>() {
public boolean apply(StorageMetadata metadata) {
return metadata.getName().equals(finalMarker);
}
});
contents = contents.tailSet(lastMarkerMetadata);
contents.remove(lastMarkerMetadata);
}
final String prefix = options.getDir();
if (prefix != null) {
contents =
newTreeSet(
filter(
contents,
new Predicate<StorageMetadata>() {
public boolean apply(StorageMetadata o) {
return (o != null
&& o.getName().startsWith(prefix)
&& !o.getName().equals(prefix));
}
}));
}
Integer maxResults = options.getMaxResults() != null ? options.getMaxResults() : 1000;
if (contents.size() > 0) {
SortedSet<StorageMetadata> contentsSlice = firstSliceOfSize(contents, maxResults);
if (!contentsSlice.contains(contents.last())) {
// Partial listing
marker = contentsSlice.last().getName();
} else {
marker = null;
}
contents = contentsSlice;
}
final String delimiter = options.isRecursive() ? null : File.separator;
if (delimiter != null) {
SortedSet<String> commonPrefixes = null;
Iterable<String> iterable =
transform(contents, new CommonPrefixes(prefix != null ? prefix : null, delimiter));
commonPrefixes = iterable != null ? newTreeSet(iterable) : new TreeSet<String>();
commonPrefixes.remove(CommonPrefixes.NO_PREFIX);
contents =
newTreeSet(
filter(contents, new DelimiterFilter(prefix != null ? prefix : null, delimiter)));
Iterables.<StorageMetadata>addAll(
contents,
transform(
commonPrefixes,
new Function<String, StorageMetadata>() {
public StorageMetadata apply(String o) {
MutableStorageMetadata md = new MutableStorageMetadataImpl();
md.setType(StorageType.RELATIVE_PATH);
md.setName(o);
return md;
}
}));
}
// trim metadata, if the response isn't supposed to be detailed.
if (!options.isDetailed()) {
for (StorageMetadata md : contents) {
md.getUserMetadata().clear();
}
}
}
return Futures.<PageSet<? extends StorageMetadata>>immediateFuture(
new PageSetImpl<StorageMetadata>(contents, marker));
}
