/*
 * 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.spring.component;

import org.springframework.core.io.ClassPathResource;

import org.springframework.jdbc.datasource.DriverManagerDataSource;

import org.wamblee.system.components.ORMappingConfig;
import org.wamblee.system.components.ORMappingConfig.DatabaseType;
import org.wamblee.system.core.AbstractComponent;
import org.wamblee.system.core.DefaultProvidedInterface;
import org.wamblee.system.core.DefaultRequiredInterface;
import org.wamblee.system.core.ProvidedInterface;
import org.wamblee.system.core.RequiredInterface;
import org.wamblee.system.core.Scope;
import org.wamblee.system.spring.SpringComponent;

import java.io.IOException;

import java.util.Map;
import java.util.Properties;
import java.util.TreeMap;

import javax.sql.DataSource;

/**
 * 
 * @author $author$
 * @version $Revision$
 */
public class DatasourceComponent extends AbstractComponent<DataSource> {
    private static RequiredInterface PROPS = new DefaultRequiredInterface(
        "dbprops", Properties.class);

    private static ProvidedInterface DATASOURCE = new DefaultProvidedInterface(
        "datasource", DataSource.class);

    private static ProvidedInterface ORM_CONFIG = new DefaultProvidedInterface(
        "ormconfig", ORMappingConfig.class);

    /**
     * Creates a new DatasourceComponent object.
     * 
     * 
     */
    public DatasourceComponent(String aName) throws IOException {
        super(aName);

        addRequiredInterface(PROPS);
        addProvidedInterface(DATASOURCE);
        addProvidedInterface(ORM_CONFIG);
    }

    @Override
    protected DataSource doStart(Scope aScope) {
        Properties dbProps = aScope.getInterfaceImplementation(PROPS
            .getProvider(), Properties.class);
        DriverManagerDataSource ds = new DriverManagerDataSource(dbProps
            .getProperty("database.url"), dbProps
            .getProperty("database.username"), dbProps
            .getProperty("database.password"));
        addInterface(DATASOURCE, ds, aScope);

        DatabaseType type = DatabaseType.valueOf(dbProps
            .getProperty("database.type"));

        ORMappingConfig config = new ORMappingConfig(true, type);

        addInterface(ORM_CONFIG, config, aScope);

        return ds;
    }

    @Override
    protected void doStop(DataSource aRuntime) {
        // Empty.
    }
}