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][DataFetcher] for read operation and
2. a [MutationDataFetcher][DataFetcher] 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)
);

[AbstractBinderFactory]:

[DataFetcher]:

Configuration

Database​

Database