Examples with BlobMetaData org.elasticsearch.common.blobstore.BlobMetaData used on opensource projects

Example 1 with BlobMetaData

use of org.elasticsearch.common.blobstore.BlobMetaData in project elasticsearch by elastic.

the class AzureStorageServiceImpl method listBlobsByPrefix.

@Override
public Map<String, BlobMetaData> listBlobsByPrefix(String account, LocationMode mode, String container, String keyPath, String prefix) throws URISyntaxException, StorageException {
    // NOTE: this should be here: if (prefix == null) prefix = "";
    // however, this is really inefficient since deleteBlobsByPrefix enumerates everything and
    // then does a prefix match on the result; it should just call listBlobsByPrefix with the prefix!
    logger.debug("listing container [{}], keyPath [{}], prefix [{}]", container, keyPath, prefix);
    MapBuilder<String, BlobMetaData> blobsBuilder = MapBuilder.newMapBuilder();
    CloudBlobClient client = this.getSelectedClient(account, mode);
    CloudBlobContainer blobContainer = client.getContainerReference(container);
    SocketAccess.doPrivilegedVoidException(() -> {
        if (blobContainer.exists()) {
            for (ListBlobItem blobItem : blobContainer.listBlobs(keyPath + (prefix == null ? "" : prefix))) {
                URI uri = blobItem.getUri();
                logger.trace("blob url [{}]", uri);
                // uri.getPath is of the form /container/keyPath.* and we want to strip off the /container/
                // this requires 1 + container.length() + 1, with each 1 corresponding to one of the /
                String blobPath = uri.getPath().substring(1 + container.length() + 1);
                CloudBlockBlob blob = blobContainer.getBlockBlobReference(blobPath);
                // fetch the blob attributes from Azure (getBlockBlobReference does not do this)
                // this is needed to retrieve the blob length (among other metadata) from Azure Storage
                blob.downloadAttributes();
                BlobProperties properties = blob.getProperties();
                String name = blobPath.substring(keyPath.length());
                logger.trace("blob url [{}], name [{}], size [{}]", uri, name, properties.getLength());
                blobsBuilder.put(name, new PlainBlobMetaData(name, properties.getLength()));
            }
        }
    });
    return blobsBuilder.immutableMap();
}

Example 2 with BlobMetaData

use of org.elasticsearch.common.blobstore.BlobMetaData in project elasticsearch by elastic.

the class AzureStorageServiceMock method listBlobsByPrefix.

@Override
public Map<String, BlobMetaData> listBlobsByPrefix(String account, LocationMode mode, String container, String keyPath, String prefix) {
    MapBuilder<String, BlobMetaData> blobsBuilder = MapBuilder.newMapBuilder();
    blobs.forEach((String blobName, ByteArrayOutputStream bos) -> {
        final String checkBlob;
        if (keyPath != null && !keyPath.isEmpty()) {
            // strip off key path from the beginning of the blob name
            checkBlob = blobName.replace(keyPath, "");
        } else {
            checkBlob = blobName;
        }
        if (prefix == null || startsWithIgnoreCase(checkBlob, prefix)) {
            blobsBuilder.put(blobName, new PlainBlobMetaData(checkBlob, bos.size()));
        }
    });
    return blobsBuilder.immutableMap();
}

Example 3 with BlobMetaData

use of org.elasticsearch.common.blobstore.BlobMetaData in project crate by crate.

the class BlobStoreFormatIT method testCompressionIsApplied.

public void testCompressionIsApplied() throws IOException {
    BlobStore blobStore = createTestBlobStore();
    BlobContainer blobContainer = blobStore.blobContainer(BlobPath.cleanPath());
    StringBuilder veryRedundantText = new StringBuilder();
    for (int i = 0; i < randomIntBetween(100, 300); i++) {
        veryRedundantText.append("Blah ");
    }
    ChecksumBlobStoreFormat<BlobObj> checksumFormat = new ChecksumBlobStoreFormat<>(BLOB_CODEC, "%s", BlobObj::fromXContent, xContentRegistry(), false);
    ChecksumBlobStoreFormat<BlobObj> checksumFormatComp = new ChecksumBlobStoreFormat<>(BLOB_CODEC, "%s", BlobObj::fromXContent, xContentRegistry(), true);
    BlobObj blobObj = new BlobObj(veryRedundantText.toString());
    checksumFormatComp.write(blobObj, blobContainer, "blob-comp", true);
    checksumFormat.write(blobObj, blobContainer, "blob-not-comp", true);
    Map<String, BlobMetadata> blobs = blobContainer.listBlobsByPrefix("blob-");
    assertEquals(blobs.size(), 2);
    assertThat(blobs.get("blob-not-comp").length(), greaterThan(blobs.get("blob-comp").length()));
}

Example 4 with BlobMetaData

use of org.elasticsearch.common.blobstore.BlobMetaData in project crate by crate.

the class BlobStoreRepository method doDeleteShardSnapshots.

/**
 * After updating the {@link RepositoryData} each of the shards directories is individually first moved to the next shard generation
 * and then has all now unreferenced blobs in it deleted.
 *
 * @param snapshotId        SnapshotId to delete
 * @param repositoryStateId Expected repository state id
 * @param foundIndices      All indices folders found in the repository before executing any writes to the repository during this
 *                          delete operation
 * @param rootBlobs         All blobs found at the root of the repository before executing any writes to the repository during this
 *                          delete operation
 * @param repositoryData    RepositoryData found the in the repository before executing this delete
 * @param listener          Listener to invoke once finished
 */
private void doDeleteShardSnapshots(SnapshotId snapshotId, long repositoryStateId, Map<String, BlobContainer> foundIndices, Map<String, BlobMetadata> rootBlobs, RepositoryData repositoryData, boolean writeShardGens, ActionListener<Void> listener) {
    if (writeShardGens) {
        // First write the new shard state metadata (with the removed snapshot) and compute deletion targets
        final StepListener<Collection<ShardSnapshotMetaDeleteResult>> writeShardMetadataAndComputeDeletesStep = new StepListener<>();
        writeUpdatedShardMetadataAndComputeDeletes(snapshotId, repositoryData, true, writeShardMetadataAndComputeDeletesStep);
        // Once we have put the new shard-level metadata into place, we can update the repository metadata as follows:
        // 1. Remove the snapshot from the list of existing snapshots
        // 2. Update the index shard generations of all updated shard folders
        // 
        // Note: If we fail updating any of the individual shard paths, none of them are changed since the newly created
        // index-${gen_uuid} will not be referenced by the existing RepositoryData and new RepositoryData is only
        // written if all shard paths have been successfully updated.
        final StepListener<RepositoryData> writeUpdatedRepoDataStep = new StepListener<>();
        writeShardMetadataAndComputeDeletesStep.whenComplete(deleteResults -> {
            final ShardGenerations.Builder builder = ShardGenerations.builder();
            for (ShardSnapshotMetaDeleteResult newGen : deleteResults) {
                builder.put(newGen.indexId, newGen.shardId, newGen.newGeneration);
            }
            final RepositoryData updatedRepoData = repositoryData.removeSnapshot(snapshotId, builder.build());
            writeIndexGen(updatedRepoData, repositoryStateId, true, ActionListener.wrap(v -> writeUpdatedRepoDataStep.onResponse(updatedRepoData), listener::onFailure));
        }, listener::onFailure);
        // Once we have updated the repository, run the clean-ups
        writeUpdatedRepoDataStep.whenComplete(updatedRepoData -> {
            // Run unreferenced blobs cleanup in parallel to shard-level snapshot deletion
            final ActionListener<Void> afterCleanupsListener = new GroupedActionListener<>(ActionListener.wrap(() -> listener.onResponse(null)), 2);
            asyncCleanupUnlinkedRootAndIndicesBlobs(foundIndices, rootBlobs, updatedRepoData, afterCleanupsListener);
            asyncCleanupUnlinkedShardLevelBlobs(snapshotId, writeShardMetadataAndComputeDeletesStep.result(), afterCleanupsListener);
        }, listener::onFailure);
    } else {
        // Write the new repository data first (with the removed snapshot), using no shard generations
        final RepositoryData updatedRepoData = repositoryData.removeSnapshot(snapshotId, ShardGenerations.EMPTY);
        writeIndexGen(updatedRepoData, repositoryStateId, false, ActionListener.wrap(v -> {
            // Run unreferenced blobs cleanup in parallel to shard-level snapshot deletion
            final ActionListener<Void> afterCleanupsListener = new GroupedActionListener<>(ActionListener.wrap(() -> listener.onResponse(null)), 2);
            asyncCleanupUnlinkedRootAndIndicesBlobs(foundIndices, rootBlobs, updatedRepoData, afterCleanupsListener);
            final StepListener<Collection<ShardSnapshotMetaDeleteResult>> writeMetaAndComputeDeletesStep = new StepListener<>();
            writeUpdatedShardMetadataAndComputeDeletes(snapshotId, repositoryData, false, writeMetaAndComputeDeletesStep);
            writeMetaAndComputeDeletesStep.whenComplete(deleteResults -> asyncCleanupUnlinkedShardLevelBlobs(snapshotId, deleteResults, afterCleanupsListener), afterCleanupsListener::onFailure);
        }, listener::onFailure));
    }
}

Example 5 with BlobMetaData

use of org.elasticsearch.common.blobstore.BlobMetaData in project elasticsearch by elastic.

the class FsBlobContainer method listBlobsByPrefix.

@Override
public Map<String, BlobMetaData> listBlobsByPrefix(String blobNamePrefix) throws IOException {
    // If we get duplicate files we should just take the last entry
    Map<String, BlobMetaData> builder = new HashMap<>();
    blobNamePrefix = blobNamePrefix == null ? "" : blobNamePrefix;
    try (DirectoryStream<Path> stream = Files.newDirectoryStream(path, blobNamePrefix + "*")) {
        for (Path file : stream) {
            final BasicFileAttributes attrs = Files.readAttributes(file, BasicFileAttributes.class);
            if (attrs.isRegularFile()) {
                builder.put(file.getFileName().toString(), new PlainBlobMetaData(file.getFileName().toString(), attrs.size()));
            }
        }
    }
    return unmodifiableMap(builder);
}