Using SWC-DB Java Thrift Client

The SWC-DB Java Thrift Client is in package org.swcdb.thrift; and the Repository is available via Maven Central Repository https://repo1.maven.org/maven2/org/swcdb/thrift and https://oss.sonatype.org/content/groups/public/org/swcdb/thrift

a Maven Project's pom.xml requires to add to <dependencies>:

  <dependency>
    <groupId>org.swcdb</groupId>
    <artifactId>thrift</artifactId>
    <version>0.5.12</version>
  </dependency>
  

for other project types use the defintions are available at:

A Sample Program - list all the schemas:

1) Save to `ListAllSchemas.java`:

/* ListAllSchemas.java */

import org.swcdb.thrift.*;
import org.swcdb.thrift.gen.*;
import org.apache.thrift.TException;


public class ListAllSchemas {


  public static void main(String [] args) {

    Client client = null;

    try {
      client = Client.create("localhost", 18000, true);


      SpecSchemas spec = new SpecSchemas();
      java.util.List<Schema> schemas = client.list_columns(spec);

      for (Schema schema : schemas) {
        System.out.println(schema.toString());
      }

    } catch (org.swcdb.thrift.gen.Exception e) {
      e.printStackTrace();
      System.exit(1);

    } catch (org.apache.thrift.TException e) {
      e.printStackTrace();
      System.exit(1);

    } catch (java.lang.Exception e) {
      e.printStackTrace();
      System.exit(1);
    }

    System.out.println("--- OK! --- ");
  }

}
  

2) Define the ClassPaths:

for the example the JAR dependencies are at /root/.m2/repository/

SWCDB_VERSION="0.5.12"
CLASSPATHS=/root/.m2/repository/org/swcdb/thrift/${SWCDB_VERSION}/thrift-${SWCDB_VERSION}.jar;
CLASSPATHS=${CLASSPATHS}:/root/.m2/repository/org/apache/thrift/libthrift/0.18.1/libthrift-0.18.1.jar;
CLASSPATHS=${CLASSPATHS}:/root/.m2/repository/org/slf4j/slf4j-api/1.7.28/slf4j-api-1.7.28.jar;
  

3) Compile:

javac -cp ${CLASSPATHS} ListAllSchemas.java
  

4) Run:

java -cp ${CLASSPATHS}:./ ListAllSchemas
  

for Real Results SWC-DB cluster needs to be running