| name | dbclient-engine-storage |
| description | Document / object / graph / big-data storage engines in DBClient: MongoDB, MinIO, Hadoop, Hive, Vault, and Nebula. Use this skill when adding, debugging, or modifying such a Tester.
|
DBClient Engine: Storage / NoSQL / Big Data
Covered Testers and Aliases
| Engine | Tester | Aliases |
|---|
| MongoDB | MongoDBTester.java | mongo, mongodb |
| MinIO | MinioTester.java | minio |
| Hadoop | HadoopTester.java | hadoop |
| Hive | HiveTester.java | hive |
| Vault | VaultTester.java | vault |
| Nebula | NebulaTester.java | nebula |
Key Dependencies (build.gradle)
// MongoDB
implementation 'org.mongodb:mongodb-driver-sync:4.6.1'
implementation 'org.mongodb:mongodb-driver-reactivestreams:4.6.1'
// MinIO
implementation 'io.minio:minio:8.5.11'
// Hadoop
implementation 'org.apache.hadoop:hadoop-client:3.3.6'
// Hive
implementation('org.apache.hive:hive-jdbc:3.1.3') {
exclude group: 'org.apache.hadoop'
exclude group: 'org.apache.hbase'
}
// Nebula
implementation 'com.vesoft:client:3.8.4'
implementation 'com.alibaba:fastjson:2.0.57'
Key Concerns
- MongoDB uses
MongoDBResult to wrap List<Document>; TestExecutor.formatQueryResult() has a special JSON branch for mongodb.
- MinIO is object storage; the query parameter usually follows bucket/key semantics;
-B / --bucket and -k / --key are the dedicated parameters.
- Hive excludes hadoop/hbase to avoid conflicts with
hadoop-client.
- Nebula is a graph database; its connection and query semantics differ from JDBC.
Minimal Verification Command (MongoDB Example)
java -jar build/libs/oneclient-1.0-all.jar \
-h 127.0.0.1 -P 27017 -u admin -p password -d test \
-e mongodb -t query -q "db.collection.find().limit(1)"
Maintenance Notes
- When adding a new NoSQL / object storage engine, add a result-formatting branch in
TestExecutor if needed.
- When adding Hadoop/Hive dependencies, check whether a local
libs/ jar is also required.
