package org.apache.tuscany.nosqldatastore.cassandra;

import java.util.ArrayList;
import java.util.List;

import me.prettyprint.cassandra.service.ThriftCluster;
import me.prettyprint.cassandra.service.ThriftKsDef;
import me.prettyprint.hector.api.Cluster;
import me.prettyprint.hector.api.Keyspace;
import me.prettyprint.hector.api.ddl.ColumnFamilyDefinition;
import me.prettyprint.hector.api.ddl.KeyspaceDefinition;
import me.prettyprint.hector.api.exceptions.HInvalidRequestException;
import me.prettyprint.hector.api.factory.HFactory;
import org.apache.cassandra.thrift.InvalidRequestException;
import org.apache.tuscany.nosqldatastore.Database;
import org.apache.tuscany.nosqldatastore.Group;

class CassandraDatabase implements Database {
	
	private Keyspace keyspace;
	private Cluster cluster;
	
	CassandraDatabase(String databaseName, Cluster cluster) {
        try{            
            KeyspaceDefinition ksDef = new ThriftKsDef(databaseName, "org.apache.cassandra.locator.SimpleStrategy", 1, null);
            cluster.addKeyspace(ksDef);
        }catch (HInvalidRequestException e){
            System.out.println("Connect to the existing database...");
        }
		this.keyspace = HFactory.createKeyspace(databaseName, cluster);
		this.cluster = cluster;
	}

	public Group createGroup(String groupId) {
		CassandraGroup group = new CassandraGroup(groupId, keyspace, cluster);
		return group;
	}

    public Group getGroup(String groupId) {
		return createGroup(groupId);
    }


    public void deleteGroup(String key) {
		cluster.dropColumnFamily(keyspace.getKeyspaceName(), key);
	}

}