/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.tuscany.nosqldatastore.cassandra;

import me.prettyprint.cassandra.service.CassandraHostConfigurator;
import me.prettyprint.hector.api.Cluster;
import me.prettyprint.hector.api.exceptions.HInvalidRequestException;
import me.prettyprint.hector.api.exceptions.HectorException;
import me.prettyprint.hector.api.factory.HFactory;
import org.apache.tuscany.nosqldatastore.Database;
import org.apache.tuscany.nosqldatastore.Session;
import org.apache.tuscany.nosqldatastore.exception.DatabaseNotFoundException;
import org.apache.tuscany.nosqldatastore.exception.GroupNotFoundException;
import org.apache.tuscany.nosqldatastore.exception.SessionException;

public class CassandraSession implements Session {

    private CassandraHostConfigurator cassandraHostConfigurator;
    private Cluster cluster;

    public CassandraSession(String clusterName) {
        cluster = HFactory.getOrCreateCluster("Test Cluster", "127.0.0.1:9160");
    }

    public Database createDatabase(String databaseName) throws SessionException {
        Database database = null;
        try{
            database = new CassandraDatabase(databaseName, cluster);
        } catch (HectorException e){
            throw new SessionException("Session error");
        }
        return database;
    }

    public Database getDatabase(String databaseName) throws SessionException {
        return createDatabase(databaseName);
    }

    public void deleteDatabase(String databaseName) throws DatabaseNotFoundException, SessionException {
        try{
            cluster.dropKeyspace(databaseName);
        } catch(HInvalidRequestException e){
            throw new DatabaseNotFoundException("Database "+databaseName+" not found");
        } catch (HectorException e){
            throw new SessionException("Session error");
        }
    }

}