rakeshadr commented on a change in pull request #1404: URL: https://github.com/apache/hadoop-ozone/pull/1404#discussion_r485527375
########## File path: hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/request/file/OMDirectoryCreateRequestV1.java ########## @@ -0,0 +1,313 @@ +/** + * 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 + * <p> + * http://www.apache.org/licenses/LICENSE-2.0 + * <p> + * 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.apache.hadoop.ozone.om.request.file; + +import com.google.common.base.Optional; +import org.apache.commons.lang3.tuple.ImmutablePair; +import org.apache.hadoop.hdds.utils.db.cache.CacheKey; +import org.apache.hadoop.hdds.utils.db.cache.CacheValue; +import org.apache.hadoop.ozone.OzoneAcl; +import org.apache.hadoop.ozone.audit.AuditLogger; +import org.apache.hadoop.ozone.audit.OMAction; +import org.apache.hadoop.ozone.om.OMMetadataManager; +import org.apache.hadoop.ozone.om.OMMetrics; +import org.apache.hadoop.ozone.om.OzoneManager; +import org.apache.hadoop.ozone.om.exceptions.OMException; +import org.apache.hadoop.ozone.om.helpers.*; +import org.apache.hadoop.ozone.om.ratis.utils.OzoneManagerDoubleBufferHelper; +import org.apache.hadoop.ozone.om.request.util.OmResponseUtil; +import org.apache.hadoop.ozone.om.response.OMClientResponse; +import org.apache.hadoop.ozone.om.response.file.OMDirectoryCreateResponseV1; +import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos; +import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos + .CreateDirectoryRequest; +import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos + .CreateDirectoryResponse; +import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos + .KeyArgs; +import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos + .OMRequest; +import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos + .OMResponse; +import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos + .Status; +import org.apache.hadoop.ozone.security.acl.IAccessAuthorizer; +import org.apache.hadoop.ozone.security.acl.OzoneObj; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.io.IOException; +import java.nio.file.Path; +import java.nio.file.Paths; +import java.util.ArrayList; +import java.util.Collections; +import java.util.List; +import java.util.Map; + +import static org.apache.hadoop.ozone.om.exceptions.OMException.ResultCodes.FILE_ALREADY_EXISTS; +import static org.apache.hadoop.ozone.om.exceptions.OMException.ResultCodes.INVALID_KEY_NAME; +import static org.apache.hadoop.ozone.om.lock.OzoneManagerLock.Resource.BUCKET_LOCK; +import static org.apache.hadoop.ozone.om.request.file.OMFileRequest.OMDirectoryResult.*; + +/** + * Handle create directory request. It will add path components to the directory + * table and maintains file system semantics. + */ +public class OMDirectoryCreateRequestV1 extends OMDirectoryCreateRequest { + + private static final Logger LOG = + LoggerFactory.getLogger(OMDirectoryCreateRequestV1.class); + + public OMDirectoryCreateRequestV1(OMRequest omRequest) { + super(omRequest); + } + + @Override + public OMClientResponse validateAndUpdateCache(OzoneManager ozoneManager, + long trxnLogIndex, OzoneManagerDoubleBufferHelper omDoubleBufferHelper) { + + CreateDirectoryRequest createDirectoryRequest = getOmRequest() + .getCreateDirectoryRequest(); + KeyArgs keyArgs = createDirectoryRequest.getKeyArgs(); + + String volumeName = keyArgs.getVolumeName(); + String bucketName = keyArgs.getBucketName(); + String keyName = keyArgs.getKeyName(); + + OMResponse.Builder omResponse = OmResponseUtil.getOMResponseBuilder( + getOmRequest()); + omResponse.setCreateDirectoryResponse(CreateDirectoryResponse.newBuilder()); + OMMetrics omMetrics = ozoneManager.getMetrics(); + omMetrics.incNumCreateDirectory(); + + AuditLogger auditLogger = ozoneManager.getAuditLogger(); + OzoneManagerProtocolProtos.UserInfo userInfo = getOmRequest().getUserInfo(); + + Map<String, String> auditMap = buildKeyArgsAuditMap(keyArgs); + OMMetadataManager omMetadataManager = ozoneManager.getMetadataManager(); + boolean acquiredLock = false; + IOException exception = null; + OMClientResponse omClientResponse = null; + Result result = Result.FAILURE; + List<OmDirectoryInfo> missingParentInfos; + + try { + keyArgs = resolveBucketLink(ozoneManager, keyArgs, auditMap); + volumeName = keyArgs.getVolumeName(); + bucketName = keyArgs.getBucketName(); + + // check Acl + checkKeyAcls(ozoneManager, volumeName, bucketName, keyName, + IAccessAuthorizer.ACLType.CREATE, OzoneObj.ResourceType.KEY); + + // Check if this is the root of the filesystem. + if (keyName.length() == 0) { + throw new OMException("Directory create failed. Cannot create " + + "directory at root of the filesystem", + OMException.ResultCodes.CANNOT_CREATE_DIRECTORY_AT_ROOT); + } + // acquire lock + acquiredLock = omMetadataManager.getLock().acquireWriteLock(BUCKET_LOCK, Review comment: Yes, exactly. This is long term goal and will kick start once the primary changes are IN. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: ozone-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: ozone-issues-h...@hadoop.apache.org
