[Task]: add samples for all transforms to the samples project

[bamaer]

What needs to happen?

there are no samples for the following transforms:

• Add constants
• Add value fields changing sequence
• Add XML
• Apache Tika
• Avro Decode
• Avro Encode
• Avro File Input
• Avro File Output
• Azure Event Hubs Listener
• Azure Event Hubs Writer
• Beam Bigtable Input
• Beam Bigtable Output
• Beam BigQuery Input
• Beam BigQuery Output
• Beam GCP Pub/Sub : Publish
• Beam GCP Pub/Sub : Subscribe
• Beam Input
• Beam Kafka Consume
• Beam Kafka Produce
• Beam Kinesis Consume
• Beam Kinesis Produce
• Beam Output
• Beam Timestamp
• Beam Window
• Cassandra Input
• Cassandra Output
• Cassandra SSTable Output
• Call DB procedure
• Change file encoding
• Check if file is locked
• Check if webservice is available
• Combination lookup/update
• Concat Fields
• Copy rows to result
• Credit card validator
• Data Grid
• Delete
• De-Serialize From File
• Detect Empty Stream
• Doris Bulk Loader
• Drools Rule Accumulator
• Drools Rule Executor
• Dummy (do nothing)
• Dynamic SQL row
• Edi to XML
• Email Messages Input
• Enhanced JSON Output
• Excel input
• Excel writer
• Execute a process
• Execute row SQL script
• Execute SQL script
• Execute Unit Tests
• File exists
• File Metadata
• Files from result
• Files to result
• Generate Random Value
• Get Data From XML
• Get files rowcount
• Get records from stream
• Get Rows from Result
• Get SubFolder names
• Get table names
• Get variables
• HTTP client
• HTTP Post
• Injector
• Join Rows
• JSON Input
• LDAP Input
• LDAP Output
• Load file content in memory
• Mail
• Mapping Input
• Mapping Output
• Memory Group By
• Merge rows (diff)
• Metadata Input
• Metadata structure of stream
• Microsoft Access Output
• MonetDB Bulk Loader
• MongoDB Input
• MongoDB Output
• Multiway Merge Join
• (Neo4j -> check for completeness)
• Oracle Bulk Loader
• Parquet File Input
• Parquet File Output
• Pipeline Data Probe
• PGP decrypt stream
• PGP encrypt stream
• Pipeline Executor
• PostgreSQL Bulk Loader
• Process files
• Properties file Input
• Properties file Output
• Regex Evaluation
• Replace in String
• Reservoir Sampling
• REST Client
• Row Denormaliser
• Row Flattener
• Row Generator
• Row Normaliser
• Run SSH commands
• Salesforce Delete
• Salesforce Input
• Salesforce Insert
• Salesforce Update
• Salesforce Upsert
• Sample Rows
• SAS Input
• Serialize To File
• Server Status
• Set field value to a constant
• Set field Value to a field
• Set Variables
• Snowflake Bulk Loader
• Split fields to rows
• Splunk Input
• SQL File Output
• Stream Schema Merge
• String cut
• Synchronize after merge
• Table Compare
• Table Exists
• Teradata Bulk Loader
• Token Replacement
• Unique Rows (HashSet)
• Update
• User Defined Java Expression
• Web services lookup
• Workflow Executor
• Write to log
• XML Input Stream (StAX)
• XML Join
• XML Output
• XSD Validator
• XSL Transformation
• Yaml Input

Issue Priority

Priority: 3

Issue Component

Component: Samples

[campen]

MongoDB Input/output samples (zipped up)
mongodb.zip
Also I used this docker-compose file to spin up a mongo container:
version: '3.1'
services:
mongo:
image: mongo:latest
ports:
- 27017:27017
environment:
MONGO_INITDB_ROOT_USERNAME: root
MONGO_INITDB_ROOT_PASSWORD: password