si-sun commented on a change in pull request #4169: NIFI-7338 Adding GetSmbFile and PutSmbFile processors #2 URL: https://github.com/apache/nifi/pull/4169#discussion_r406063540
########## File path: nifi-nar-bundles/nifi-smb-bundle/nifi-smb-processors/src/main/java/org/apache/nifi/processors/smb/PutSmbFile.java ########## @@ -0,0 +1,308 @@ +/* + * 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 + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * 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.nifi.processors.smb; + +import org.apache.nifi.annotation.behavior.InputRequirement; +import org.apache.nifi.annotation.behavior.InputRequirement.Requirement; +import org.apache.nifi.components.PropertyDescriptor; +import org.apache.nifi.flowfile.FlowFile; +import org.apache.nifi.annotation.behavior.ReadsAttribute; +import org.apache.nifi.annotation.behavior.ReadsAttributes; +import org.apache.nifi.annotation.lifecycle.OnScheduled; +import org.apache.nifi.annotation.documentation.CapabilityDescription; +import org.apache.nifi.annotation.documentation.SeeAlso; +import org.apache.nifi.annotation.documentation.Tags; +import org.apache.nifi.processor.exception.ProcessException; +import org.apache.nifi.processor.AbstractProcessor; +import org.apache.nifi.processor.ProcessContext; +import org.apache.nifi.processor.ProcessSession; +import org.apache.nifi.processor.ProcessorInitializationContext; +import org.apache.nifi.processor.Relationship; +import org.apache.nifi.processor.util.StandardValidators; +import org.apache.nifi.expression.ExpressionLanguageScope; +import org.apache.nifi.flowfile.attributes.CoreAttributes; +import org.apache.nifi.logging.ComponentLog; + +import java.util.ArrayList; +import java.util.Collections; +import java.util.HashSet; +import java.util.List; +import java.util.Set; + +import com.hierynomus.smbj.SMBClient; +import com.hierynomus.smbj.connection.Connection; +import com.hierynomus.smbj.auth.AuthenticationContext; +import com.hierynomus.smbj.share.DiskShare; +import com.hierynomus.smbj.session.Session; +import com.hierynomus.msfscc.FileAttributes; +import com.hierynomus.msdtyp.AccessMask; +import com.hierynomus.msfscc.FileAttributes; +import com.hierynomus.mssmb2.SMB2ShareAccess; +import com.hierynomus.mssmb2.SMB2CreateDisposition; +import com.hierynomus.mssmb2.SMB2CreateOptions; +import com.hierynomus.smbj.share.File; +import java.io.OutputStream; +import java.util.EnumSet; + +@InputRequirement(Requirement.INPUT_REQUIRED) +@Tags({"samba, smb, cifs, files, put"}) +@CapabilityDescription("Writes the contents of a FlowFile to a samba network location. " + + "Use this processor instead of a cifs mounts if share access control is important.") +@SeeAlso({GetSmbFile.class}) +@ReadsAttributes({@ReadsAttribute(attribute="filename", description="The filename to use when writing the FlowFile to the network folder.")}) +public class PutSmbFile extends AbstractProcessor { + public static final String SHARE_ACCESS_NONE = "none"; + public static final String SHARE_ACCESS_READ = "read"; + public static final String SHARE_ACCESS_READDELETE = "read, delete"; + public static final String SHARE_ACCESS_READWRITEDELETE = "read, write, delete"; + + public static final String REPLACE_RESOLUTION = "replace"; + public static final String IGNORE_RESOLUTION = "ignore"; + public static final String FAIL_RESOLUTION = "fail"; + + public static final PropertyDescriptor HOSTNAME = new PropertyDescriptor.Builder() + .name("Hostname") + .description("The network host to which files should be written.") + .required(true) + .addValidator(StandardValidators.NON_EMPTY_VALIDATOR) + .build(); + public static final PropertyDescriptor SHARE = new PropertyDescriptor.Builder() + .name("Share") + .description("The network share to which files should be written.") + .required(true) + .addValidator(StandardValidators.NON_EMPTY_VALIDATOR) + .build(); + public static final PropertyDescriptor DIRECTORY = new PropertyDescriptor.Builder() + .name("Directory") + .description("The network folder to which files should be written. You may use expression language.") + .required(true) + .addValidator(StandardValidators.NON_EMPTY_VALIDATOR) + .expressionLanguageSupported(ExpressionLanguageScope.FLOWFILE_ATTRIBUTES) + .build(); + public static final PropertyDescriptor DOMAIN = new PropertyDescriptor.Builder() + .name("Domain") + .description("The domain use for authentication") + .required(false) + .addValidator(StandardValidators.NON_EMPTY_VALIDATOR) + .build(); + public static final PropertyDescriptor USERNAME = new PropertyDescriptor.Builder() + .name("Username") + .description("The username use for authentication") + .required(false) + .addValidator(StandardValidators.NON_EMPTY_VALIDATOR) + .build(); + public static final PropertyDescriptor PASSWORD = new PropertyDescriptor.Builder() + .name("Password") + .description("The password use for authentication") + .required(false) + .addValidator(StandardValidators.NON_EMPTY_VALIDATOR) + .sensitive(true) + .build(); + public static final PropertyDescriptor CREATE_DIRS = new PropertyDescriptor.Builder() + .name("Create Missing Directories") + .description("If true, then missing destination directories will be created. If false, flowfiles are penalized and sent to failure.") + .required(true) + .allowableValues("true", "false") + .defaultValue("false") + .build(); + public static final PropertyDescriptor SHARE_ACCESS = new PropertyDescriptor.Builder() + .name("Share Access Strategy") + .description("Indicates which shared access are granted on the file during the write. " + + "None is the most restrictive, but the safest setting to prevent corruption.") + .required(true) + .defaultValue(SHARE_ACCESS_NONE) + .allowableValues(SHARE_ACCESS_NONE, SHARE_ACCESS_READ, SHARE_ACCESS_READDELETE, SHARE_ACCESS_READWRITEDELETE) + .build(); + public static final PropertyDescriptor CONFLICT_RESOLUTION = new PropertyDescriptor.Builder() + .name("Conflict Resolution Strategy") + .description("Indicates what should happen when a file with the same name already exists in the output directory") + .required(true) + .defaultValue(REPLACE_RESOLUTION) + .allowableValues(REPLACE_RESOLUTION, IGNORE_RESOLUTION, FAIL_RESOLUTION) + .build(); + public static final PropertyDescriptor BATCH_SIZE = new PropertyDescriptor.Builder() + .name("Batch Size") + .description("The maximum number of files to put in each iteration") + .required(true) + .addValidator(StandardValidators.POSITIVE_INTEGER_VALIDATOR) + .defaultValue("100") + .build(); + public static final Relationship REL_SUCCESS = new Relationship.Builder() + .name("success") + .description("Files that have been successfully written to the output network path are transferred to this relationship") + .build(); + + public static final Relationship REL_FAILURE = new Relationship.Builder() + .name("failure") + .description("Files that could not be written to the output network path for some reason are transferred to this relationship") + .build(); + + private List<PropertyDescriptor> descriptors; + + private Set<Relationship> relationships; + + private SMBClient smbClient = null; Review comment: The connect method is synchronized in [the source code](https://github.com/hierynomus/smbj/blob/a8c74679c977946ff99a68cd19e69c6b20cf93d6/src/main/java/com/hierynomus/smbj/SMBClient.java#L96). So I suppose there is no need for triggerSerially. That being said I couldn't find anything about thread safety in the docs. ---------------------------------------------------------------- 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 With regards, Apache Git Services