Examples with OMKeysDeleteResponse org.apache.hadoop.ozone.om.response.key.OMKeysDeleteResponse used on opensource projects

Example 1 with OMKeysDeleteResponse

use of org.apache.hadoop.ozone.om.response.key.OMKeysDeleteResponse in project ozone by apache.

the class OMKeysDeleteRequest method validateAndUpdateCache.

@Override
@SuppressWarnings("methodlength")
public OMClientResponse validateAndUpdateCache(OzoneManager ozoneManager, long trxnLogIndex, OzoneManagerDoubleBufferHelper omDoubleBufferHelper) {
    DeleteKeysRequest deleteKeyRequest = getOmRequest().getDeleteKeysRequest();
    OzoneManagerProtocolProtos.DeleteKeyArgs deleteKeyArgs = deleteKeyRequest.getDeleteKeys();
    List<String> deleteKeys = new ArrayList<>(deleteKeyArgs.getKeysList());
    IOException exception = null;
    OMClientResponse omClientResponse = null;
    Result result = null;
    OMMetrics omMetrics = ozoneManager.getMetrics();
    omMetrics.incNumKeyDeletes();
    String volumeName = deleteKeyArgs.getVolumeName();
    String bucketName = deleteKeyArgs.getBucketName();
    Map<String, String> auditMap = new LinkedHashMap<>();
    auditMap.put(VOLUME, volumeName);
    auditMap.put(BUCKET, bucketName);
    List<OmKeyInfo> omKeyInfoList = new ArrayList<>();
    AuditLogger auditLogger = ozoneManager.getAuditLogger();
    OzoneManagerProtocolProtos.UserInfo userInfo = getOmRequest().getUserInfo();
    OMResponse.Builder omResponse = OmResponseUtil.getOMResponseBuilder(getOmRequest());
    OMMetadataManager omMetadataManager = ozoneManager.getMetadataManager();
    boolean acquiredLock = false;
    int indexFailed = 0;
    int length = deleteKeys.size();
    OzoneManagerProtocolProtos.DeleteKeyArgs.Builder unDeletedKeys = OzoneManagerProtocolProtos.DeleteKeyArgs.newBuilder().setVolumeName(volumeName).setBucketName(bucketName);
    boolean deleteStatus = true;
    try {
        ResolvedBucket bucket = ozoneManager.resolveBucketLink(Pair.of(volumeName, bucketName), this);
        bucket.audit(auditMap);
        volumeName = bucket.realVolume();
        bucketName = bucket.realBucket();
        acquiredLock = omMetadataManager.getLock().acquireWriteLock(BUCKET_LOCK, volumeName, bucketName);
        // Validate bucket and volume exists or not.
        validateBucketAndVolume(omMetadataManager, volumeName, bucketName);
        String volumeOwner = getVolumeOwner(omMetadataManager, volumeName);
        for (indexFailed = 0; indexFailed < length; indexFailed++) {
            String keyName = deleteKeyArgs.getKeys(indexFailed);
            String objectKey = omMetadataManager.getOzoneKey(volumeName, bucketName, keyName);
            OmKeyInfo omKeyInfo = omMetadataManager.getKeyTable(getBucketLayout()).get(objectKey);
            if (omKeyInfo == null) {
                deleteStatus = false;
                LOG.error("Received a request to delete a Key does not exist {}", objectKey);
                deleteKeys.remove(keyName);
                unDeletedKeys.addKeys(keyName);
                continue;
            }
            try {
                // check Acl
                checkKeyAcls(ozoneManager, volumeName, bucketName, keyName, IAccessAuthorizer.ACLType.DELETE, OzoneObj.ResourceType.KEY, volumeOwner);
                omKeyInfoList.add(omKeyInfo);
            } catch (Exception ex) {
                deleteStatus = false;
                LOG.error("Acl check failed for Key: {}", objectKey, ex);
                deleteKeys.remove(keyName);
                unDeletedKeys.addKeys(keyName);
            }
        }
        long quotaReleased = 0;
        OmBucketInfo omBucketInfo = getBucketInfo(omMetadataManager, volumeName, bucketName);
        // Mark all keys which can be deleted, in cache as deleted.
        for (OmKeyInfo omKeyInfo : omKeyInfoList) {
            omMetadataManager.getKeyTable(getBucketLayout()).addCacheEntry(new CacheKey<>(omMetadataManager.getOzoneKey(volumeName, bucketName, omKeyInfo.getKeyName())), new CacheValue<>(Optional.absent(), trxnLogIndex));
            omKeyInfo.setUpdateID(trxnLogIndex, ozoneManager.isRatisEnabled());
            quotaReleased += sumBlockLengths(omKeyInfo);
        }
        omBucketInfo.incrUsedBytes(-quotaReleased);
        omBucketInfo.incrUsedNamespace(-1L * omKeyInfoList.size());
        omClientResponse = new OMKeysDeleteResponse(omResponse.setDeleteKeysResponse(DeleteKeysResponse.newBuilder().setStatus(deleteStatus).setUnDeletedKeys(unDeletedKeys)).setStatus(deleteStatus ? OK : PARTIAL_DELETE).setSuccess(deleteStatus).build(), omKeyInfoList, ozoneManager.isRatisEnabled(), omBucketInfo.copyObject());
        result = Result.SUCCESS;
    } catch (IOException ex) {
        result = Result.FAILURE;
        exception = ex;
        createErrorOMResponse(omResponse, ex);
        // reset deleteKeys as request failed.
        deleteKeys = new ArrayList<>();
        // Add all keys which are failed due to any other exception .
        for (int i = indexFailed; i < length; i++) {
            unDeletedKeys.addKeys(deleteKeyArgs.getKeys(i));
        }
        omResponse.setDeleteKeysResponse(DeleteKeysResponse.newBuilder().setStatus(false).setUnDeletedKeys(unDeletedKeys).build()).build();
        omClientResponse = new OMKeysDeleteResponse(omResponse.build(), getBucketLayout());
    } finally {
        if (acquiredLock) {
            omMetadataManager.getLock().releaseWriteLock(BUCKET_LOCK, volumeName, bucketName);
        }
        addResponseToDoubleBuffer(trxnLogIndex, omClientResponse, omDoubleBufferHelper);
    }
    addDeletedKeys(auditMap, deleteKeys, unDeletedKeys.getKeysList());
    auditLog(auditLogger, buildAuditMessage(DELETE_KEYS, auditMap, exception, userInfo));
    switch(result) {
        case SUCCESS:
            omMetrics.decNumKeys(deleteKeys.size());
            if (LOG.isDebugEnabled()) {
                LOG.debug("Keys delete success. Volume:{}, Bucket:{}, Keys:{}", volumeName, bucketName, auditMap.get(DELETED_KEYS_LIST));
            }
            break;
        case FAILURE:
            omMetrics.incNumKeyDeleteFails();
            if (LOG.isDebugEnabled()) {
                LOG.debug("Keys delete failed. Volume:{}, Bucket:{}, DeletedKeys:{}, " + "UnDeletedKeys:{}", volumeName, bucketName, auditMap.get(DELETED_KEYS_LIST), auditMap.get(UNDELETED_KEYS_LIST), exception);
            }
            break;
        default:
            LOG.error("Unrecognized Result for OMKeysDeleteRequest: {}", deleteKeyRequest);
    }
    return omClientResponse;
}