hugegraph-sync/README.md

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# hugegraph-commons
[![License](https://img.shields.io/badge/license-Apache%202-0E78BA.svg)](https://www.apache.org/licenses/LICENSE-2.0.html)
[![codecov](https://codecov.io/gh/hugegraph/hugegraph-common/branch/master/graph/badge.svg)](https://codecov.io/gh/hugegraph/hugegraph-common)
[![Maven Central](https://maven-badges.herokuapp.com/maven-central/org.apache.hugegraph/hugegraph-common/badge.svg)](https://mvnrepository.com/artifact/org.apache.hugegraph/hugegraph-common)
hugegraph-commons is a common module for [HugeGraph](https://github.com/apache/hugegraph) and its peripheral components.
hugegraph-commons encapsulates locks, configurations, events, iterators, rest and some
numeric or collection util classes to simplify the development of HugeGraph and its components.
## Components
- Lock: atomic lock, key lock, lock group and lock manger
- Config: register and load config option with security check
- Event: listening and notification, do something asynchronously
- Iterator: some iterators with extra functions, map, filter, extend etc.
- Rest: RESTful client implemented on Jersey, POST, PUT, GET and DELETE
- Util: performance analyzer, version checker, numeric and Collection utils, log and exception utils etc.
- Rpc: rpc component for inner module communication, currently it's based on [Sofa-RPC](https://github.com/sofastack/sofa-rpc)
## Learn More
The [doc page](https://hugegraph.apache.org/docs/) contains more information about hugegraph modules.
And here are links of other repositories:
1. [hugegraph-server](https://github.com/apache/hugegraph) (graph's core component - OLTP server)
2. [hugegraph-toolchain](https://github.com/apache/hugegraph-toolchain) (include loader/dashboard/tool/client)
3. [hugegraph-computer](https://github.com/apache/hugegraph-computer) (graph processing system - OLAP)
4. [hugegraph-website/doc](https://github.com/apache/hugegraph-doc) (include doc & website code)
## Contributing
Welcome to contribute, please see [`How to Contribute`](https://github.com/apache/hugegraph/blob/master/CONTRIBUTING.md) for more information
Note: It's recommended to use [GitHub Desktop](https://desktop.github.com/) to **greatly simplify** the PR and commit process.
## Licence
Same as HugeGraph, hugegraph-commons is also licensed under `Apache 2.0` License.