Examples with ResultContinuation com.microsoft.azure.storage.ResultContinuation used on opensource projects

Example 1 with ResultContinuation

use of com.microsoft.azure.storage.ResultContinuation in project photon-model by vmware.

the class AzureStorageEnumerationAdapterService method getStorageContainersAsync.

/*
     * Get all Azure containers by storage account
     */
public void getStorageContainersAsync(StorageEnumContext context, StorageEnumStages next) {
    if (context.storageAccountIds.size() == 0) {
        logFine(() -> "No storage description available - clean up all resources");
        context.subStage = StorageEnumStages.DISASSOCIATE_RESOURCE_GROUP_STATES;
        handleSubStage(context);
        return;
    }
    Consumer<Throwable> failure = e -> {
        logWarning("Failure getting Azure storage containers [EndpointLink:%s] [Exception:%s]", context.request.endpointLink, e.getMessage());
        handleError(context, e);
    };
    PhotonModelUtils.runInExecutor(this.executorService, () -> {
        for (String id : context.storageAccountIds) {
            String storageConnectionString = context.storageConnectionStrings.get(id);
            if (storageConnectionString == null) {
                continue;
            }
            try {
                CloudStorageAccount storageAccount;
                if (AzureUtils.isAzureClientMock()) {
                    StorageCredentials credentials = StorageCredentials.tryParseCredentials(storageConnectionString);
                    storageAccount = new CloudStorageAccount(credentials, new URI(AzureUtils.getAzureBaseUri()), new URI(AzureUtils.getAzureBaseUri()), new URI(AzureUtils.getAzureBaseUri()), new URI(AzureUtils.getAzureBaseUri()));
                } else {
                    storageAccount = CloudStorageAccount.parse(storageConnectionString);
                }
                CloudBlobClient blobClient = storageAccount.createCloudBlobClient();
                ResultContinuation nextContainerResults = null;
                do {
                    try {
                        ResultSegment<CloudBlobContainer> contSegment = blobClient.listContainersSegmented(null, ContainerListingDetails.NONE, getQueryResultLimit(), nextContainerResults, null, null);
                        context.apiListStorageContainers++;
                        nextContainerResults = contSegment.getContinuationToken();
                        for (CloudBlobContainer container : contSegment.getResults()) {
                            String uri = canonizeId(container.getUri().toString());
                            context.containerIds.add(uri);
                            context.storageContainers.put(uri, container);
                            ResultContinuation nextBlobResults = null;
                            do {
                                ResultSegment<ListBlobItem> blobsSegment = container.listBlobsSegmented(null, false, EnumSet.noneOf(BlobListingDetails.class), getQueryResultLimit(), nextBlobResults, null, null);
                                context.apiListBlobs++;
                                nextBlobResults = blobsSegment.getContinuationToken();
                                for (ListBlobItem blobItem : blobsSegment.getResults()) {
                                    String blobId = canonizeId(blobItem.getUri().toString());
                                    context.storageBlobs.put(blobId, blobItem);
                                    // populate mapping of blob uri and storage account for all storage
                                    // accounts as new disks can be added to already existing blobs
                                    StorageAccount blobStorageAccount = context.storageAccountMap.get(id);
                                    if (blobStorageAccount != null) {
                                        context.storageAccountBlobUriMap.put(blobId, blobStorageAccount);
                                    }
                                    context.blobIds.add(blobId);
                                }
                            } while (nextBlobResults != null);
                        }
                    } catch (StorageException storageExc) {
                        if (storageExc.getCause() instanceof UnknownHostException || StorageErrorCode.RESOURCE_NOT_FOUND.toString().equals(storageExc.getErrorCode()) || AzureConstants.RESOURCE_NOT_FOUND.equals(storageExc.getErrorCode())) {
                            String msg = "Probably trying to process a storage account/container that was " + "just deleted. Skipping it and continue with the next " + "storage account. Storage account id: [" + id + "], " + "storage account connection string: [" + storageConnectionString + "]. Error: %s";
                            logInfo(msg, Utils.toString(storageExc));
                        } else {
                            logSevere("StorageException[errorCode=%s, httpCode=%s, msg=%s, cause=%s]", storageExc.getErrorCode(), storageExc.getHttpStatusCode(), storageExc.getMessage(), storageExc.getCause() != null ? Utils.toString(storageExc.getCause()) : "n/a");
                            throw storageExc;
                        }
                    }
                } while (nextContainerResults != null);
                logFine(() -> String.format("Processing %d storage containers", context.containerIds.size()));
            } catch (Exception e) {
                handleError(context, e);
                return;
            }
        }
        context.subStage = next;
        handleSubStage(context);
    }, failure);
}

Example 2 with ResultContinuation

use of com.microsoft.azure.storage.ResultContinuation in project photon-model by vmware.

the class AzureComputeHostStorageStatsGatherer method getBlobUsedBytesAsync.

private void getBlobUsedBytesAsync(AzureStorageStatsDataHolder statsData, StorageMetricsStages next) {
    Runnable getBlobsAsync = () -> {
        String metricName = PhotonModelConstants.STORAGE_USED_BYTES;
        List<ServiceStats.ServiceStat> statDatapoints = new ArrayList<>();
        AtomicInteger accountsCount = new AtomicInteger(statsData.storageAccounts.size());
        final List<Throwable> exs = new ArrayList<>();
        for (Map.Entry<String, StorageAccount> account : statsData.storageAccounts.entrySet()) {
            String resourceGroupName = getResourceGroupName(account.getValue().id);
            statsData.azureClients.getAzureClient().storageAccounts().inner().listKeysAsync(resourceGroupName, account.getValue().name, new AzureAsyncCallback<StorageAccountListKeysResultInner>() {

                @Override
                public void onError(Throwable e) {
                    handleError(statsData, e);
                }

                @Override
                public void onSuccess(StorageAccountListKeysResultInner result) {
                    logFine(() -> String.format("Retrieved the storage account keys for" + " storage account [%s].", account.getValue().name));
                    String storageConnectionString = String.format(STORAGE_CONNECTION_STRING, account.getValue().name, result.keys().get(0).value());
                    try {
                        CloudStorageAccount storageAccount = getAzureStorageClient(storageConnectionString);
                        CloudBlobClient blobClient = storageAccount.createCloudBlobClient();
                        ResultContinuation nextContainerResults = null;
                        do {
                            ResultSegment<CloudBlobContainer> contSegment = blobClient.listContainersSegmented(null, ContainerListingDetails.NONE, QUERY_RESULT_LIMIT, nextContainerResults, null, null);
                            nextContainerResults = contSegment.getContinuationToken();
                            for (CloudBlobContainer container : contSegment.getResults()) {
                                ResultContinuation nextBlobResults = null;
                                do {
                                    ResultSegment<ListBlobItem> blobsSegment = container.listBlobsSegmented(null, false, EnumSet.noneOf(BlobListingDetails.class), QUERY_RESULT_LIMIT, nextBlobResults, null, null);
                                    nextBlobResults = blobsSegment.getContinuationToken();
                                    for (ListBlobItem blobItem : blobsSegment.getResults()) {
                                        if (blobItem instanceof CloudPageBlob) {
                                            CloudPageBlob pageBlob = (CloudPageBlob) blobItem;
                                            // TODO https://jira-hzn.eng.vmware.com/browse/VSYM-3445
                                            try {
                                                CloudBlob blobSnapshot = pageBlob.createSnapshot();
                                                statsData.snapshots.add(blobSnapshot);
                                                CloudPageBlob pageBlobSnapshot = (CloudPageBlob) blobSnapshot;
                                                ArrayList<PageRange> pages = pageBlobSnapshot.downloadPageRanges();
                                                // https://jira-hzn.eng.vmware.com/browse/VSYM-3355
                                                for (PageRange pageRange : pages) {
                                                    statsData.utilizedBytes += pageRange.getEndOffset() - pageRange.getStartOffset();
                                                }
                                            } catch (StorageException e) {
                                                logWarning(() -> String.format("Error getting blob size: [%s]", e.getMessage()));
                                            }
                                        }
                                    }
                                } while (nextBlobResults != null);
                            }
                        } while (nextContainerResults != null);
                    } catch (Exception e) {
                        logWarning(() -> String.format("Exception while getting blob used bytes: %s", Utils.toString(e)));
                        exs.add(e);
                    } finally {
                        // in the Azure account
                        if (statsData.snapshots.size() > 0) {
                            synchronized (statsData.snapshots) {
                                Iterator<CloudBlob> snapshotIterator = statsData.snapshots.iterator();
                                while (snapshotIterator.hasNext()) {
                                    try {
                                        CloudBlob snapshot = snapshotIterator.next();
                                        snapshot.deleteIfExists();
                                        snapshotIterator.remove();
                                    } catch (StorageException e) {
                                        // Best effort to delete all the snapshots
                                        logWarning(() -> String.format("Exception while deleting snapshot: %s", Utils.toString(e)));
                                    }
                                }
                            }
                        }
                    }
                    // if all storage accounts were processed, create ServiceStat and finish
                    if (accountsCount.decrementAndGet() == 0) {
                        if (!exs.isEmpty()) {
                            handleError(statsData, exs.iterator().next());
                            return;
                        }
                        if (statsData.utilizedBytes != 0) {
                            ServiceStats.ServiceStat stat = new ServiceStats.ServiceStat();
                            stat.latestValue = statsData.utilizedBytes;
                            stat.sourceTimeMicrosUtc = TimeUnit.MILLISECONDS.toMicros(Utils.getNowMicrosUtc());
                            stat.unit = PhotonModelConstants.getUnitForMetric(metricName);
                            statDatapoints.add(stat);
                        }
                        statsData.statsResponse.statValues.put(metricName, statDatapoints);
                        if (statsData.statsResponse.statValues.size() == 1) {
                            statsData.statsResponse.computeLink = statsData.computeHostDesc.documentSelfLink;
                        }
                        statsData.stage = next;
                        handleStorageMetricDiscovery(statsData);
                    }
                }
            });
        }
    };
    PhotonModelUtils.runInExecutor(this.executorService, getBlobsAsync, throwable -> handleError(statsData, throwable));
}