Configuration

The configuration for Athena is implemented using ResourceConfig class programmatically wires up dependencies with a BinderFactory.

The configuration does not expose all the settings that can be customized. Some requires overriding of the injected dependency in AbstractBinderFactory, which offers the default dependency injection and resource binding.

The required bindings are

a FileStore implementation class
a MetaStore implementation class with dependencies of
1. a QueryDataFetcher for read operation and
2. a MutationDataFetcher for write operation

import org.apache.commons.dbcp2.BasicDataSource;
import org.glassfish.hk2.utilities.binding.AbstractBinder;

import graphql.schema.DataFetcher;

import jakarta.inject.Provider;
import javax.sql.DataSource;

public class MyBinderFactory extends AbstractBinderFactory {

    @Override
    protected Class<? extends FileStore> buildFileStore() {
        return SwiftFileStore.class;
    }

    @Override
    protected Class<? extends MetaStore> buildMetaStore() {
        return GraphQLMetaStore.class;
    }

    @Override
    protected DataFetcher<MetaData> buildQueryDataFetcher() {

    }

    @Override
    protected DataFetcher<MetaData> buildMutationDataFetcher() {

    }
}

Any custom bindings can be achieved by overriding the afterBinding

@Override
protected void afterBinding(final AbstractBinder abstractBinder) {
    // Custom bindings here...
}

Database

A database should be initialized with:

CREATE DATABASE IF NOT EXISTS Athena;
USE Athena;

CREATE TABLE BOOK_META_DATA (
    id        int NOT NULL AUTO_INCREMENT,
    file_id   VARCHAR(255) NOT NULL,
    file_name VARCHAR(255) NOT NULL,
    file_type VARCHAR(8)   NOT NULL,
    PRIMARY KEY (id)
);

Configuration

Database​

Database