/*
 * Copyright 2008 the original author or authors.
 *
 * Licensed 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.wamblee.system.components;

import org.wamblee.support.persistence.Database;
import org.wamblee.support.persistence.DerbyDatabase;

import org.wamblee.system.components.ORMappingConfig.DatabaseType;
import org.wamblee.system.core.AbstractComponent;
import org.wamblee.system.core.DefaultProvidedInterface;
import org.wamblee.system.core.ProvidedInterface;
import org.wamblee.system.core.Scope;

import java.util.Properties;


/**
 * DOCUMENT ME!
 *
 * @author $author$
 * @version $Revision$
  */
public class DatabaseComponent extends AbstractComponent<Database> {
    /**
     * DOCUMENT ME!
     */
    private static ProvidedInterface DB_PROPS = new DefaultProvidedInterface("dbProps",
            Properties.class);

    /**
     * DOCUMENT ME!
     */
    private Database database;

    /**
     * Creates a new DatabaseComponent object.
     *
     * @param aName DOCUMENT ME!
     * @param aDatabase DOCUMENT ME!
     */
    public DatabaseComponent(String aName, Database aDatabase) {
        super(aName);
        database = aDatabase;
        addProvidedInterface(DB_PROPS);
    }

    /**
     * DOCUMENT ME!
     *
     * @param aScope DOCUMENT ME!
     *
     * @return DOCUMENT ME!
     */
    @Override
    protected Database doStart(Scope aScope) {
        database.start();

        Properties props = new Properties();

        if (database instanceof DerbyDatabase) {
            props.put("database.type", DatabaseType.DERBY.toString());
        } else {
            throw new IllegalArgumentException("Unknown database type "
                + database);
        }

        //props.put("database.driver", database.getDriverClassName());
        props.put("database.url", database.getJdbcUrl());
        props.put("database.username", database.getUsername());
        props.put("database.password", database.getPassword());

        addInterface(DB_PROPS, props, aScope);

        return database;
    }

    /**
     * DOCUMENT ME!
     *
     * @param aRuntime DOCUMENT ME!
     */
    @Override
    protected void doStop(Database aRuntime) {
        database.stop();
    }
}