Rust TsFile Writer

This is a not yet feature complete Writer for TsFiles Version 3 (as defined from the Apache IoTDB Project). Currently not all features of TsFiles are supported. Most notably:

• No Aligned Chunks can be written
• Not all Encodings are available
• Not all DataTypes are supported
• Not all Compression Types are supported

But generally, the TsFiles written with this client are 100% compatible with TsFiles written in Java.

Quickstart

To write a TsFile just do something like

// Create the Schema
// Two devices with two sensors each
let schema = TsFileSchemaBuilder::new()
        .add(
            "d1",
            DeviceBuilder::new()
                .add(
                    "s1",
                    TSDataType::INT64,
                    TSEncoding::PLAIN,
                    CompressionType::UNCOMPRESSED,
                )
                .add(
                    "s2",
                    TSDataType::FLOAT,
                    TSEncoding::PLAIN,
                    CompressionType::UNCOMPRESSED,
                )
                .build(),
        )
        .add(
            "d2",
            DeviceBuilder::new()
                .add(
                    "s1",
                    TSDataType::INT64,
                    TSEncoding::PLAIN,
                    CompressionType::UNCOMPRESSED,
                )
                .add(
                    "s2",
                    TSDataType::FLOAT,
                    TSEncoding::PLAIN,
                    CompressionType::UNCOMPRESSED,
                )
                .build(),
        )
        .build();
        
// Create the writer
let mut writer = TsFileWriter::new(
    "target/benchmark2.tsfile",
    schema,
    Default::default(),
)
.unwrap();
        
// Write multiple timeseries at once
writer.write_many("d1",1, vec![
        DataPoint::new("s1", IoTDBValue::LONG(i)),
        DataPoint::new("s2", IoTDBValue::FLOAT(i as f32)),
]);
    
// Write single series
writer.write("d2", "s1", 1, IoTDBValue::LONG(i));
writer.write("d2", "s2", 1, IoTDBValue::FLOAT(i as f32));

Currently implemented features

Encodings

• Timeseries Encoding
• Plain
• everything else...

Datatypes

• INT32
• INT64
• FLOAT
• everything else...

Compression

• Uncompressed
• SNAPPY
• everything else...

Changelog

0.1.2

• SNAPPY Compression is now available
• CI Pipeline and cargo fmt used in the codebase

0.1.1

• Lots of Refactoring
• Added Result<_, TsFileError> to basically every operation
• Improved Readme